From 0d0bae13753b99972eb4261ca83f35f96774ebf8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=BC=A0=E6=80=9D=E5=AD=A6?= <1357767065@qq.com>
Date: Tue, 27 Sep 2022 11:19:32 +0800
Subject: [PATCH] =?UTF-8?q?DNF=E5=8C=85=E7=AE=A1=E7=90=86=E5=B7=A5?=
 =?UTF-8?q?=E5=85=B7=E8=B5=9B=E9=A2=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 rust-dnf/.gitignore                           |   3 +
 rust-dnf/Cargo.toml                           |   9 +
 rust-dnf/dnf-command.c                        |  41 ++
 rust-dnf/dnf-command.h                        |  48 ++
 rust-dnf/dnf-main.c                           | 690 ++++++++++++++++++
 rust-dnf/dnf-utils.c                          | 255 +++++++
 rust-dnf/dnf-utils.h                          |  31 +
 rust-dnf/plugins/Cargo.toml                   |   9 +
 rust-dnf/plugins/clean all/clean.plugin       |   9 +
 .../plugins/clean all/dnf-command-clean.c     | 135 ++++
 .../clean all/dnf-command-clean.gresource.xml |   6 +
 .../plugins/clean all/dnf-command-clean.h     |  31 +
 .../plugins/distros-ync/distrosync.plugin     |  11 +
 .../distros-ync/dnf-command-distrosync.c      | 117 +++
 .../dnf-command-distrosync.gresource.xml      |   6 +
 .../distros-ync/dnf-command-distrosync.h      |  31 +
 rust-dnf/plugins/dnf-command.c                |  41 ++
 rust-dnf/plugins/dnf-command.h                |  48 ++
 rust-dnf/plugins/dnf-main.c                   | 690 ++++++++++++++++++
 rust-dnf/plugins/dnf-utils.c                  | 255 +++++++
 rust-dnf/plugins/dnf-utils.h                  |  31 +
 .../plugins/install/dnf-command-install.c     | 120 +++
 .../install/dnf-command-install.gresource.xml |   6 +
 .../plugins/install/dnf-command-install.h     |  31 +
 rust-dnf/plugins/install/install.plugin       |   9 +
 .../plugins/reinstall/dnf-command-reinstall.c | 197 +++++
 .../dnf-command-reinstall.gresource.xml       |   6 +
 .../plugins/reinstall/dnf-command-reinstall.h |  33 +
 rust-dnf/plugins/reinstall/reinstall.plugin   |   9 +
 rust-dnf/plugins/remove/dnf-command-remove.c  | 123 ++++
 .../remove/dnf-command-remove.gresource.xml   |   6 +
 rust-dnf/plugins/remove/dnf-command-remove.h  |  31 +
 rust-dnf/plugins/remove/remove.plugin         |   9 +
 .../dnf-command-repolist.gresource.xml        |   6 +
 .../plugins/repolist/dnf-command-repolist.rs  | 162 ++++
 rust-dnf/plugins/repolist/repolist.plugin     |   9 +
 rust-dnf/src/main.rs                          |   3 +
 37 files changed, 3257 insertions(+)
 create mode 100644 rust-dnf/.gitignore
 create mode 100644 rust-dnf/Cargo.toml
 create mode 100644 rust-dnf/dnf-command.c
 create mode 100644 rust-dnf/dnf-command.h
 create mode 100644 rust-dnf/dnf-main.c
 create mode 100644 rust-dnf/dnf-utils.c
 create mode 100644 rust-dnf/dnf-utils.h
 create mode 100644 rust-dnf/plugins/Cargo.toml
 create mode 100644 rust-dnf/plugins/clean all/clean.plugin
 create mode 100644 rust-dnf/plugins/clean all/dnf-command-clean.c
 create mode 100644 rust-dnf/plugins/clean all/dnf-command-clean.gresource.xml
 create mode 100644 rust-dnf/plugins/clean all/dnf-command-clean.h
 create mode 100644 rust-dnf/plugins/distros-ync/distrosync.plugin
 create mode 100644 rust-dnf/plugins/distros-ync/dnf-command-distrosync.c
 create mode 100644 rust-dnf/plugins/distros-ync/dnf-command-distrosync.gresource.xml
 create mode 100644 rust-dnf/plugins/distros-ync/dnf-command-distrosync.h
 create mode 100644 rust-dnf/plugins/dnf-command.c
 create mode 100644 rust-dnf/plugins/dnf-command.h
 create mode 100644 rust-dnf/plugins/dnf-main.c
 create mode 100644 rust-dnf/plugins/dnf-utils.c
 create mode 100644 rust-dnf/plugins/dnf-utils.h
 create mode 100644 rust-dnf/plugins/install/dnf-command-install.c
 create mode 100644 rust-dnf/plugins/install/dnf-command-install.gresource.xml
 create mode 100644 rust-dnf/plugins/install/dnf-command-install.h
 create mode 100644 rust-dnf/plugins/install/install.plugin
 create mode 100644 rust-dnf/plugins/reinstall/dnf-command-reinstall.c
 create mode 100644 rust-dnf/plugins/reinstall/dnf-command-reinstall.gresource.xml
 create mode 100644 rust-dnf/plugins/reinstall/dnf-command-reinstall.h
 create mode 100644 rust-dnf/plugins/reinstall/reinstall.plugin
 create mode 100644 rust-dnf/plugins/remove/dnf-command-remove.c
 create mode 100644 rust-dnf/plugins/remove/dnf-command-remove.gresource.xml
 create mode 100644 rust-dnf/plugins/remove/dnf-command-remove.h
 create mode 100644 rust-dnf/plugins/remove/remove.plugin
 create mode 100644 rust-dnf/plugins/repolist/dnf-command-repolist.gresource.xml
 create mode 100644 rust-dnf/plugins/repolist/dnf-command-repolist.rs
 create mode 100644 rust-dnf/plugins/repolist/repolist.plugin
 create mode 100644 rust-dnf/src/main.rs

diff --git a/rust-dnf/.gitignore b/rust-dnf/.gitignore
new file mode 100644
index 00000000..2f5541fc
--- /dev/null
+++ b/rust-dnf/.gitignore
@@ -0,0 +1,3 @@
+/target
+/.git
+/.vscode
\ No newline at end of file
diff --git a/rust-dnf/Cargo.toml b/rust-dnf/Cargo.toml
new file mode 100644
index 00000000..f7696c44
--- /dev/null
+++ b/rust-dnf/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "rust-dnf"
+version = "0.1.0"
+edition = "2022"
+
+[dependencies]
+clap = { version = "3.0.14", features = ["derive"] }
+filetime = "0.2"
+chrono = "0.4.19"
\ No newline at end of file
diff --git a/rust-dnf/dnf-command.c b/rust-dnf/dnf-command.c
new file mode 100644
index 00000000..fa9d02a5
--- /dev/null
+++ b/rust-dnf/dnf-command.c
@@ -0,0 +1,41 @@
+/* dnf-command.c
+ *
+ * Copyright © 2016 Igor Gnatenko <ignatenko@redhat.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "dnf-command.h"
+
+G_DEFINE_INTERFACE (DnfCommand, dnf_command, G_TYPE_OBJECT)
+
+static void
+dnf_command_default_init (DnfCommandInterface *iface)
+{
+}
+
+gboolean
+dnf_command_run (DnfCommand      *cmd,
+                 int              argc,
+                 char            *argv[],
+                 GOptionContext  *opt_ctx,
+                 DnfContext      *ctx,
+                 GError         **error)
+{
+  g_return_val_if_fail (DNF_IS_COMMAND (cmd), FALSE);
+
+  DnfCommandInterface *iface = DNF_COMMAND_GET_IFACE (cmd);
+  g_return_val_if_fail (iface->run, TRUE);
+  return iface->run (cmd, argc, argv, opt_ctx, ctx, error);
+}
diff --git a/rust-dnf/dnf-command.h b/rust-dnf/dnf-command.h
new file mode 100644
index 00000000..16572c47
--- /dev/null
+++ b/rust-dnf/dnf-command.h
@@ -0,0 +1,48 @@
+/* dnf-command.h
+ *
+ * Copyright © 2016 Igor Gnatenko <ignatenko@redhat.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <glib-object.h>
+#include <libdnf/libdnf.h>
+
+G_BEGIN_DECLS
+
+#define DNF_TYPE_COMMAND dnf_command_get_type ()
+G_DECLARE_INTERFACE (DnfCommand, dnf_command, DNF, COMMAND, GObject)
+
+struct _DnfCommandInterface
+{
+  GTypeInterface parent_iface;
+
+  gboolean (*run) (DnfCommand      *cmd,
+                   int              argc,
+                   char            *argv[],
+                   GOptionContext  *opt_ctx,
+                   DnfContext      *ctx,
+                   GError         **error);
+};
+
+gboolean dnf_command_run (DnfCommand      *cmd,
+                          int              argc,
+                          char            *argv[],
+                          GOptionContext  *opt_ctx,
+                          DnfContext      *ctx,
+                          GError         **error);
+
+G_END_DECLS
diff --git a/rust-dnf/dnf-main.c b/rust-dnf/dnf-main.c
new file mode 100644
index 00000000..661dfee7
--- /dev/null
+++ b/rust-dnf/dnf-main.c
@@ -0,0 +1,690 @@
+/* dnf-main.c
+ *
+ * Copyright © 2010-2015 Richard Hughes <richard@hughsie.com>
+ * Copyright © 2016 Colin Walters <walters@verbum.org>
+ * Copyright © 2016-2017 Igor Gnatenko <ignatenko@redhat.com>
+ * Copyright © 2017-2021 Jaroslav Rohel <jrohel@redhat.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <locale.h>
+#include <stdlib.h>
+#include <string.h>
+#include <glib.h>
+#include <libpeas/peas.h>
+#include <libdnf/libdnf.h>
+#include "dnf-command.h"
+#include "dnf-utils.h"
+
+typedef enum { ARG_DEFAULT, ARG_FALSE, ARG_TRUE } BoolArgs;
+
+static BoolArgs opt_install_weak_deps = ARG_DEFAULT;
+static BoolArgs opt_allow_vendor_change = ARG_DEFAULT;
+static BoolArgs opt_keepcache = ARG_DEFAULT;
+static gboolean opt_no = FALSE;
+static gboolean opt_yes = FALSE;
+static gboolean opt_nodocs = FALSE;
+static gboolean opt_best = FALSE;
+static gboolean opt_nobest = FALSE;
+static gboolean opt_test = FALSE;
+static gboolean opt_refresh = FALSE;
+static gboolean show_help = FALSE;
+static gboolean dl_pkgs_printed = FALSE;
+static GSList *enable_disable_repos = NULL;
+static gboolean disable_plugins_loading = FALSE;
+static gboolean config_used = FALSE;
+static gboolean enable_disable_plugin_used = FALSE;
+static gboolean installroot_used = FALSE;
+static gboolean cachedir_used = FALSE;
+static gboolean reposdir_used = FALSE;
+static gboolean varsdir_used = FALSE;
+
+static gboolean
+process_global_option (const gchar  *option_name,
+                       const gchar  *value,
+                       gpointer      data,
+                       GError      **error)
+{
+  g_autoptr(GError) local_error = NULL;
+  DnfContext *ctx = DNF_CONTEXT (data);
+
+  gboolean ret = TRUE;
+  if (g_strcmp0 (option_name, "--config") == 0)
+    {
+      config_used = TRUE;
+      dnf_context_set_config_file_path (value);
+    }
+  else if (g_strcmp0 (option_name, "--disablerepo") == 0)
+    {
+      enable_disable_repos = g_slist_append (enable_disable_repos, g_strconcat("d", value, NULL));
+    }
+  else if (g_strcmp0 (option_name, "--enablerepo") == 0)
+    {
+      enable_disable_repos = g_slist_append (enable_disable_repos, g_strconcat("e", value, NULL));
+    }
+  else if (g_strcmp0 (option_name, "--disableplugin") == 0)
+    {
+      g_auto(GStrv) patterns = g_strsplit (value, ",", -1);
+      for (char **it = patterns; *it; ++it)
+        dnf_context_disable_plugins (*it);
+      enable_disable_plugin_used = TRUE;
+    }
+  else if (g_strcmp0 (option_name, "--enableplugin") == 0)
+    {
+      g_auto(GStrv) patterns = g_strsplit (value, ",", -1);
+      for (char **it = patterns; *it; ++it)
+        dnf_context_enable_plugins (*it);
+      enable_disable_plugin_used = TRUE;
+    }
+  else if (g_strcmp0 (option_name, "--installroot") == 0)
+    {
+      installroot_used = TRUE;
+      if (value[0] != '/')
+        {
+          local_error = g_error_new (G_OPTION_ERROR,
+                                     G_OPTION_ERROR_BAD_VALUE,
+                                     "Absolute path must be used");
+          ret = FALSE;
+        }
+      else
+        {
+          dnf_context_set_install_root (ctx, value);
+        }
+    }
+  else if (g_strcmp0 (option_name, "--releasever") == 0)
+    {
+      dnf_context_set_release_ver (ctx, value);
+    }
+  else if (g_strcmp0 (option_name, "--setopt") == 0)
+    {
+      g_auto(GStrv) setopt = g_strsplit (value, "=", 2);
+      if (!setopt[0] || !setopt[1])
+        {
+          local_error = g_error_new (G_OPTION_ERROR,
+                                     G_OPTION_ERROR_BAD_VALUE,
+                                     "Missing value in: %s", value);
+          ret = FALSE;
+        }
+      else if (strchr (setopt[0], '.'))
+        { /* repository option, pass to libdnf */
+          ret = dnf_conf_add_setopt (setopt[0], DNF_CONF_COMMANDLINE, setopt[1], &local_error);
+        }
+      else if (strcmp (setopt[0], "tsflags") == 0)
+        {
+          g_auto(GStrv) tsflags = g_strsplit (setopt[1], ",", -1);
+          for (char **it = tsflags; *it; ++it)
+            {
+              if (strcmp (*it, "nodocs") == 0)
+                opt_nodocs = TRUE;
+              else if (strcmp (*it, "test") == 0)
+                opt_test = TRUE;
+              else
+                {
+                  local_error = g_error_new (G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
+                                            "Unknown tsflag: %s", *it);
+                  ret = FALSE;
+                  break;
+                }
+            }
+        }
+      else if (strcmp (setopt[0], "module_platform_id") == 0)
+        {
+          const char *module_platform_id = setopt[1];
+          if (module_platform_id[0] != '\0')
+            {
+              dnf_context_set_platform_module (ctx, module_platform_id);
+            }
+          else
+            {
+              local_error = g_error_new (G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
+                                         "Empty value in: %s", value);
+              ret = FALSE;
+            }
+        }
+      else if (strcmp (setopt[0], "cachedir") == 0)
+        {
+          cachedir_used = TRUE;
+          const char *cachedir = setopt[1];
+          if (cachedir[0] != '\0')
+            {
+              g_autofree gchar *metadatadir = g_build_path ("/", cachedir, "metadata", NULL);
+              dnf_context_set_cache_dir (ctx, metadatadir);
+              g_autofree gchar *solvdir = g_build_path ("/", cachedir, "solv", NULL);
+              dnf_context_set_solv_dir (ctx, solvdir);
+              g_autofree gchar *lockdir = g_build_path ("/", cachedir, "lock", NULL);
+              dnf_context_set_lock_dir (ctx, lockdir);
+            }
+          else
+            {
+              local_error = g_error_new (G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
+                                         "Empty value in: %s", value);
+              ret = FALSE;
+            }
+        }
+      else if (strcmp (setopt[0], "install_weak_deps") == 0)
+        {
+          const char *setopt_val = setopt[1];
+          if (setopt_val[0] == '1' && setopt_val[1] == '\0')
+            opt_install_weak_deps = ARG_TRUE;
+          else if (setopt_val[0] == '0' && setopt_val[1] == '\0')
+            opt_install_weak_deps = ARG_FALSE;
+          else
+            {
+              local_error = g_error_new (G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
+                                         "Invalid boolean value \"%s\" in: %s", setopt[1], value);
+              ret = FALSE;
+            }
+        }
+      else if (strcmp (setopt[0], "allow_vendor_change") == 0)
+        {
+          const char *setopt_val = setopt[1];
+          if (setopt_val[0] == '1' && setopt_val[1] == '\0')
+            opt_allow_vendor_change = ARG_TRUE;
+          else if (setopt_val[0] == '0' && setopt_val[1] == '\0')
+            opt_allow_vendor_change = ARG_FALSE;
+          else
+            {
+              local_error = g_error_new (G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
+                                         "Invalid boolean value \"%s\" in: %s", setopt[1], value);
+              ret = FALSE;
+            }
+        }
+      else if (strcmp (setopt[0], "keepcache") == 0)
+        {
+          const char *setopt_val = setopt[1];
+          if (setopt_val[0] == '1' && setopt_val[1] == '\0')
+            opt_keepcache = ARG_TRUE;
+          else if (setopt_val[0] == '0' && setopt_val[1] == '\0')
+            opt_keepcache = ARG_FALSE;
+          else
+            {
+              local_error = g_error_new (G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
+                                         "Invalid boolean value \"%s\" in: %s", setopt[1], value);
+              ret = FALSE;
+            }
+        }
+      else if (strcmp (setopt[0], "reposdir") == 0)
+        {
+          reposdir_used = TRUE;
+          g_auto(GStrv) reposdir = g_strsplit (setopt[1], ",", -1);
+          dnf_context_set_repos_dir (ctx, (const gchar * const *)reposdir);
+        }
+      else if (strcmp (setopt[0], "varsdir") == 0)
+        {
+          varsdir_used = TRUE;
+          g_auto(GStrv) varsdir = g_strsplit (setopt[1], ",", -1);
+          dnf_context_set_vars_dir (ctx, (const gchar * const *)varsdir);
+        }
+      else
+        {
+          local_error = g_error_new (G_OPTION_ERROR,
+                                     G_OPTION_ERROR_BAD_VALUE,
+                                     "Unable to handle: %s", value);
+          ret = FALSE;
+        }
+    }
+  else
+    g_assert_not_reached ();
+
+  if (local_error != NULL)
+    g_set_error (error,
+                 G_OPTION_ERROR,
+                 G_OPTION_ERROR_BAD_VALUE,
+                 "(%s) %s", option_name, local_error->message);
+
+  return ret;
+}
+
+static const GOptionEntry global_opts[] = {
+  { "assumeno", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_NONE, &opt_no, "Automatically answer no for all questions", NULL },
+  { "assumeyes", 'y', G_OPTION_FLAG_NONE, G_OPTION_ARG_NONE, &opt_yes, "Automatically answer yes for all questions", NULL },
+  { "best", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_NONE, &opt_best, "Try the best available package versions in transactions", NULL },
+  { "config", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_CALLBACK, process_global_option, "Configuration file location", "<config file>" },
+  { "disablerepo", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_CALLBACK, process_global_option, "Disable repository by an id", "ID" },
+  { "disableplugin", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_CALLBACK, process_global_option, "Disable plugins by name", "name" },
+  { "enablerepo", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_CALLBACK, process_global_option, "Enable repository by an id", "ID" },
+  { "enableplugin", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_CALLBACK, process_global_option, "Enable plugins by name", "name" },
+  { "nobest", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_NONE, &opt_nobest, "Do not limit the transaction to the best candidates", NULL },
+  { "installroot", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_CALLBACK, process_global_option, "Set install root", "PATH" },
+  { "nodocs", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_NONE, &opt_nodocs, "Install packages without docs", NULL },
+  { "noplugins", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_NONE, &disable_plugins_loading, "Disable loading of plugins", NULL },
+  { "refresh", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_NONE, &opt_refresh, "Set metadata as expired before running the command", NULL },
+  { "releasever", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_CALLBACK, process_global_option, "Override the value of $releasever in config and repo files", "RELEASEVER" },
+  { "setopt", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_CALLBACK, process_global_option,
+    "Override a configuration option (install_weak_deps=0/1, allow_vendor_change=0/1, keepcache=0/1, module_platform_id=<name:stream>, cachedir=<path>, reposdir=<path1>,<path2>,..., tsflags=nodocs/test, varsdir=<path1>,<path2>,..., repo_id.option_name=<value>)", "<option>=<value>" },
+  { NULL }
+};
+
+static DnfContext *
+context_new (void)
+{
+  DnfContext *ctx = dnf_context_new ();
+
+#define CACHEDIR "/var/cache/yum"
+  dnf_context_set_cache_dir (ctx, CACHEDIR"/metadata");
+  dnf_context_set_solv_dir (ctx, CACHEDIR"/solv");
+  dnf_context_set_lock_dir (ctx, CACHEDIR"/lock");
+#undef CACHEDIR
+  dnf_context_set_check_disk_space (ctx, FALSE);
+  dnf_context_set_check_transaction (ctx, TRUE);
+
+  /* Sets a maximum cache age in seconds. It is an upper limit.
+   * The lower value between this value and "metadata_expire" value from repo/global
+   * configuration file is used.
+   * The value G_MAXUINT has a special meaning. It means that the cache never expires
+   * regardless of the settings in the configuration files. */
+  dnf_context_set_cache_age (ctx, G_MAXUINT - 1); 
+
+  return ctx;
+}
+
+static void
+state_action_changed_cb (DnfState       *state,
+                         DnfStateAction  action,
+                         const gchar    *action_hint)
+{
+  switch (action)
+    {
+      case DNF_STATE_ACTION_DOWNLOAD_METADATA:
+        g_print ("Downloading metadata...\n");
+        break;
+      case DNF_STATE_ACTION_DOWNLOAD_PACKAGES:
+        if (!dl_pkgs_printed)
+          {
+            g_print ("Downloading packages...\n");
+            dl_pkgs_printed = TRUE;
+          }
+        break;
+      case DNF_STATE_ACTION_TEST_COMMIT:
+        g_print ("Running transaction test...\n");
+        break;
+      case DNF_STATE_ACTION_INSTALL:
+        if (action_hint)
+          g_print ("Installing: %s\n", action_hint);
+        break;
+      case DNF_STATE_ACTION_REMOVE:
+        if (action_hint)
+          g_print ("Removing: %s\n", action_hint);
+        break;
+      case DNF_STATE_ACTION_UPDATE:
+        if (action_hint)
+          g_print ("Updating: %s\n", action_hint);
+        break;
+      case DNF_STATE_ACTION_OBSOLETE:
+        if (action_hint)
+          g_print ("Obsoleting: %s\n", action_hint);
+        break;
+      case DNF_STATE_ACTION_REINSTALL:
+        if (action_hint)
+          g_print ("Reinstalling: %s\n", action_hint);
+        break;
+      case DNF_STATE_ACTION_DOWNGRADE:
+        if (action_hint)
+          g_print ("Downgrading: %s\n", action_hint);
+        break;
+      case DNF_STATE_ACTION_CLEANUP:
+        if (action_hint)
+          g_print ("Cleanup: %s\n", action_hint);
+        break;
+      default:
+        break;
+    }
+}
+
+static GOptionGroup *
+new_global_opt_group (DnfContext *ctx)
+{
+  GOptionGroup *opt_grp = g_option_group_new ("global",
+                                              "Global Options:",
+                                              "Show global help options",
+                                              ctx,
+                                              NULL);
+  g_option_group_add_entries (opt_grp, global_opts);
+  return opt_grp;
+}
+
+/*
+ * The first non-option is the command/subcommand.
+ * Get it and remove it from arguments.
+ */
+static const gchar *
+get_command (int *argc,
+             char *argv[])
+{
+  const gchar *cmd_name = NULL;
+  for (gint in = 1; in < *argc; in++)
+    {
+      if (cmd_name != NULL)
+        argv[in-1] = argv[in];
+      else if (argv[in][0] != '-')
+        cmd_name = argv[in];
+    }
+  if (cmd_name != NULL) --*argc;
+  return cmd_name;
+}
+
+static gint
+compare_strings (gconstpointer a,
+                 gconstpointer b)
+{
+  return strcmp (a, b);
+}
+
+int
+main (int   argc,
+      char *argv[])
+{
+  g_autoptr(GError) error = NULL;
+  g_autoptr(DnfContext) ctx = context_new ();
+  g_autoptr(PeasEngine) engine = peas_engine_get_default ();
+  g_autoptr(PeasExtensionSet) cmd_exts = NULL;
+  g_autoptr(GOptionContext) opt_ctx = g_option_context_new ("COMMAND");
+  g_autoptr(GOptionContext) subcmd_opt_ctx = NULL;
+  g_autofree gchar *subcmd_opt_param = NULL;
+  GSList *cmds_with_subcmds = NULL;  /* list of commands with subcommands */
+  /* dictionary of aliases for commands */
+  g_autoptr(GHashTable) cmds_aliases = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
+
+  setlocale (LC_ALL, "");
+
+  if (g_getenv ("DNF_IN_TREE_PLUGINS") != NULL)
+    peas_engine_prepend_search_path (engine,
+                                    BUILDDIR"/plugins",
+                                    SRCDIR"/plugins");
+  else
+    peas_engine_prepend_search_path (engine,
+                                     PACKAGE_LIBDIR"/plugins",
+                                     PACKAGE_DATADIR"/plugins");
+
+  peas_engine_prepend_search_path (engine,
+                                   "resource:///org/fedoraproject/dnf/plugins",
+                                   NULL);
+
+  g_autofree gchar *path = g_build_filename (g_get_user_data_dir (),
+                                             "dnf",
+                                             "plugins",
+                                             NULL);
+  peas_engine_prepend_search_path (engine,
+                                   path,
+                                   NULL);
+
+  cmd_exts = peas_extension_set_new (engine,
+                                     DNF_TYPE_COMMAND,
+                                     NULL);
+
+  GString *cmd_summary = g_string_new ("Commands:");
+  for (const GList *plugin = peas_engine_get_plugin_list (engine);
+       plugin != NULL;
+       plugin = plugin->next)
+    {
+      PeasPluginInfo *info = plugin->data;
+      if (!peas_engine_load_plugin (engine, info))
+        continue;
+      if (peas_engine_provides_extension (engine, info, DNF_TYPE_COMMAND))
+        {
+          g_autofree gchar *command_name = g_strdup (peas_plugin_info_get_name (info));
+          g_autofree gchar *command_alias_name = g_strdup (peas_plugin_info_get_external_data (info, "Alias-Name"));
+
+          /* Plugins with a '_' character in command name implement subcommands.
+             E.g. the "command_module_enable" plugin implements the "enable" subcommand of the "module" command. */
+          for (gchar *ptr = command_name; *ptr != '\0'; ++ptr)
+            {
+              if (*ptr == '_')
+                {
+                  *ptr = ' ';
+                  cmds_with_subcmds = g_slist_append (cmds_with_subcmds, g_strndup (command_name, ptr - command_name));
+                  break;
+                }
+            }
+
+          /* Add command alias to the dictionary. */
+          if (command_alias_name)
+              g_hash_table_insert (cmds_aliases, g_strdup (command_alias_name), g_strdup (command_name));
+
+          /*
+           * At least 2 spaces between the command and its description are needed
+           * so that help2man formats it correctly.
+           */
+          g_string_append_printf (cmd_summary, "\n  %-16s     %s", command_name, peas_plugin_info_get_description (info));
+
+          /* If command has an alias with a description, add it to the help. */
+          const gchar *command_alias_description = peas_plugin_info_get_external_data (info, "Alias-Description");
+          if (command_alias_name && command_alias_description)
+            g_string_append_printf (cmd_summary, "\n  %-16s     %s", command_alias_name, command_alias_description);
+        }
+    }
+  g_option_context_set_summary (opt_ctx, cmd_summary->str);
+  g_string_free (cmd_summary, TRUE);
+  g_option_context_set_ignore_unknown_options (opt_ctx, TRUE);
+  g_option_context_set_help_enabled (opt_ctx, FALSE);
+  g_option_context_set_main_group (opt_ctx, new_global_opt_group (ctx));
+
+  /* Is help option in arguments? */
+  for (gint in = 1; in < argc; in++)
+    {
+      if (g_strcmp0 (argv[in], "--") == 0)
+        break;
+      if (g_strcmp0 (argv[in], "-h") == 0 ||
+          g_strcmp0 (argv[in], "--help") == 0 ||
+          g_strcmp0 (argv[in], "--help-all") == 0 ||
+          g_strcmp0 (argv[in], "--help-global") == 0)
+        {
+          show_help = TRUE;
+          break;
+        }
+    }
+
+  /*
+   * Parse the global options.
+   */
+  if (!g_option_context_parse (opt_ctx, &argc, &argv, &error))
+    goto out;
+
+  /*
+   * Initialize dnf context only if help is not requested.
+   */
+  if (!show_help)
+    {
+      if (installroot_used &&
+          !(config_used && disable_plugins_loading && cachedir_used && reposdir_used && varsdir_used))
+        {
+          error = g_error_new_literal (G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
+            "The \"--installroot\" argument must be used together with \"--config\", "
+            "\"--noplugins\", \"--setopt=cachedir=<path>\", \"--setopt=reposdir=<path>\", "
+            "\"--setopt=varsdir=<path>\" arguments.");
+          goto out;
+        }
+        
+      if (disable_plugins_loading)
+        dnf_context_set_plugins_all_disabled (disable_plugins_loading);
+
+      if (enable_disable_plugin_used && dnf_context_get_plugins_all_disabled ())
+        {
+          if (disable_plugins_loading)
+            g_print ("Loading of plugins is disabled by command line argument \"--noplugins\". "
+                     "Use of \"--enableplugin\" and \"--disableplugin\" has no meaning.\n");
+          else
+            g_print ("Loading of plugins is disabled by configuration file. "
+                     "Use of \"--enableplugin\" and \"--disableplugin\" has no meaning.\n");
+        }
+
+      if (opt_refresh)
+       dnf_context_set_cache_age (ctx, 0);
+
+      if (!dnf_context_setup (ctx, NULL, &error))
+        goto out;
+      DnfState *state = dnf_context_get_state (ctx);
+      g_signal_connect (state, "action-changed",
+                        G_CALLBACK (state_action_changed_cb),
+                        NULL);
+
+      for (GSList * item = enable_disable_repos; item; item = item->next)
+        {
+          gchar * item_data = item->data;
+          int ret;
+          if (item_data[0] == 'd')
+            ret = dnf_context_repo_disable (ctx, item_data+1, &error);
+          else
+            ret = dnf_context_repo_enable (ctx, item_data+1, &error);
+          if (!ret)
+            goto out;
+        }
+
+      /* set transaction flags, allow downgrades for all transaction types */
+      DnfTransaction *txn = dnf_context_get_transaction (ctx);
+      int flags = dnf_transaction_get_flags (txn) | DNF_TRANSACTION_FLAG_ALLOW_DOWNGRADE;
+      if (opt_nodocs)
+        flags |= DNF_TRANSACTION_FLAG_NODOCS;
+      if (opt_test)
+        flags |= DNF_TRANSACTION_FLAG_TEST;
+      dnf_transaction_set_flags (txn, flags);
+      
+      /* Disable calling dnf_goal_depsolve() during dnf_context_run().
+       * The calling is done with hardcoded parameters. We dont want it. */
+      dnf_transaction_set_dont_solve_goal(txn, TRUE);
+
+      if (opt_install_weak_deps == ARG_TRUE)
+        dnf_context_set_install_weak_deps (TRUE);
+      else if (opt_install_weak_deps == ARG_FALSE)
+        dnf_context_set_install_weak_deps (FALSE);
+
+      if (opt_allow_vendor_change == ARG_TRUE)
+        dnf_context_set_allow_vendor_change (TRUE);
+      else if (opt_allow_vendor_change == ARG_FALSE)
+        dnf_context_set_allow_vendor_change (FALSE);
+
+      if (opt_keepcache == ARG_TRUE)
+        dnf_context_set_keep_cache (ctx, TRUE);
+      else if (opt_keepcache == ARG_FALSE)
+        dnf_context_set_keep_cache (ctx, FALSE);
+
+      if (opt_best && opt_nobest)
+        {
+          error = g_error_new_literal(G_OPTION_ERROR,
+                                      G_OPTION_ERROR_BAD_VALUE,
+                                      "Argument --nobest is not allowed with argument --best");
+          goto out;
+        }
+      if (opt_best)
+        {
+          dnf_context_set_best(TRUE);
+        }
+      else if (opt_nobest)
+        {
+          dnf_context_set_best(FALSE);
+        }
+
+      if (opt_no)
+        {
+          dnf_conf_main_set_option ("assumeno", DNF_CONF_COMMANDLINE, "1", NULL);
+        }
+
+      if (opt_yes)
+        {
+          dnf_conf_main_set_option ("assumeyes", DNF_CONF_COMMANDLINE, "1", NULL);
+        }
+    }
+
+  const gchar *cmd_name = get_command (&argc, argv);
+
+  g_option_context_set_help_enabled (opt_ctx, TRUE);
+
+  if (cmd_name == NULL && show_help)
+    {
+      const char *prg_name = strrchr(argv[0], '/');
+      prg_name = prg_name ? prg_name + 1 : argv[0];
+
+      g_set_prgname (prg_name);
+      g_autofree gchar *help = g_option_context_get_help (opt_ctx, TRUE, NULL);
+      g_print ("%s", help);
+      goto out;
+    }
+
+  PeasPluginInfo *plug = NULL;
+  PeasExtension *exten = NULL;
+  const gchar *subcmd_name = NULL;
+  gboolean with_subcmds = FALSE;
+
+  /* Find the plugin that implements the command cmd_name or its subcommand.
+   * Command name (cmd_name) can not contain '_' character. It is reserved for subcomands. */
+  if (cmd_name != NULL && strchr(cmd_name, '_') == NULL)
+    {
+      const gchar *original_cmd_name = g_hash_table_lookup (cmds_aliases, cmd_name);
+      const gchar *search_cmd_name = original_cmd_name ? original_cmd_name : cmd_name;
+      with_subcmds = g_slist_find_custom (cmds_with_subcmds, search_cmd_name, compare_strings) != NULL;
+      g_autofree gchar *mod_name = g_strdup_printf ("command_%s", search_cmd_name);
+      plug = peas_engine_get_plugin_info (engine, mod_name);
+      if (plug == NULL && with_subcmds)
+        {
+          subcmd_name = get_command (&argc, argv);
+          if (subcmd_name != NULL)
+            {
+              g_autofree gchar *submod_name = g_strdup_printf ("command_%s_%s", search_cmd_name, subcmd_name);
+              plug = peas_engine_get_plugin_info (engine, submod_name);
+            }
+        }
+      if (plug != NULL)
+        exten = peas_extension_set_get_extension (cmd_exts, plug);
+    }
+  if (exten == NULL)
+    {
+      if (cmd_name == NULL)
+        error = g_error_new_literal (G_IO_ERROR,
+                                     G_IO_ERROR_FAILED,
+                                     "No command specified");
+      else if (!with_subcmds)
+        error = g_error_new (G_IO_ERROR,
+                             G_IO_ERROR_FAILED,
+                             "Unknown command: '%s'", cmd_name);
+      else if (subcmd_name)
+        error = g_error_new (G_IO_ERROR,
+                             G_IO_ERROR_FAILED,
+                             "Unknown subcommand: '%s'", subcmd_name);
+      else
+        error = g_error_new (G_IO_ERROR,
+                             G_IO_ERROR_FAILED,
+                             "Missing subcommand for command: '%s'", cmd_name);
+
+      g_autofree gchar *help = g_option_context_get_help (opt_ctx, TRUE, NULL);
+      g_printerr ("This is microdnf, which implements subset of `dnf'.\n"
+                  "%s", help);
+      goto out;
+    }
+
+  subcmd_opt_param = g_strdup_printf ("%s - %s",
+    peas_plugin_info_get_external_data (plug, "Command-Syntax"),
+    peas_plugin_info_get_description (plug));
+  subcmd_opt_ctx = g_option_context_new (subcmd_opt_param);
+  g_option_context_add_group (subcmd_opt_ctx, new_global_opt_group (ctx));
+  if (!dnf_command_run (DNF_COMMAND (exten), argc, argv, subcmd_opt_ctx, ctx, &error))
+    goto out;
+
+out:
+  g_slist_free_full(cmds_with_subcmds, g_free);
+
+  if (error != NULL)
+    {
+      const gchar *prefix = "";
+      const gchar *suffix = "";
+      if (isatty (1))
+        {
+          prefix = "\x1b[31m\x1b[1m"; /* red, bold */
+          suffix = "\x1b[22m\x1b[0m"; /* bold off, color reset */
+        }
+      g_printerr ("%serror: %s%s\n", prefix, suffix, error->message);
+      return EXIT_FAILURE;
+    }
+  return EXIT_SUCCESS;
+}
diff --git a/rust-dnf/dnf-utils.c b/rust-dnf/dnf-utils.c
new file mode 100644
index 00000000..4bf593dc
--- /dev/null
+++ b/rust-dnf/dnf-utils.c
@@ -0,0 +1,255 @@
+/* dnf-utils.c
+ *
+ * Copyright © 2010-2015 Richard Hughes <richard@hughsie.com>
+ * Copyright © 2016 Colin Walters <walters@verbum.org>
+ * Copyright © 2016-2017 Igor Gnatenko <ignatenko@redhat.com>
+ * Copyright © 2017-2020 Jaroslav Rohel <jrohel@redhat.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "dnf-utils.h"
+#include <libsmartcols.h>
+
+
+// transaction details columns
+enum { COL_NEVRA, COL_REPO, COL_SIZE };
+
+
+static gint
+dnf_package_cmp_cb (DnfPackage **pkg1, DnfPackage **pkg2)
+{
+  return dnf_package_cmp (*pkg1, *pkg2);
+}
+
+
+static void
+dnf_utils_add_transaction_packages (DnfContext *ctx,
+                                    struct libscols_table *tb,
+                                    struct libscols_line *parent,
+                                    GPtrArray *pkgs)
+{
+  // sort packages by NEVRA
+  g_ptr_array_sort (pkgs, (GCompareFunc) dnf_package_cmp_cb);
+
+  HyGoal goal = dnf_context_get_goal (ctx);
+  for (guint i = 0; i < pkgs->len; i++)
+    {
+      DnfPackage *pkg = pkgs->pdata[i];
+
+      struct libscols_line *ln = scols_table_new_line (tb, parent);
+      scols_line_set_data (ln, COL_NEVRA, dnf_package_get_nevra (pkg));
+      scols_line_set_data (ln, COL_REPO, dnf_package_get_reponame (pkg));
+      g_autofree gchar *formatted_pkg_size = g_format_size (dnf_package_get_size (pkg));
+      g_auto(GStrv) formatted_pkg_size_parts = g_strsplit (formatted_pkg_size, "\xC2\xA0", -1);
+      g_autofree gchar *formatted_pkg_size_simple_spaces = g_strjoinv (" ", formatted_pkg_size_parts);
+      scols_line_set_data (ln, COL_SIZE, formatted_pkg_size_simple_spaces);
+
+      if (dnf_package_get_action (pkg) != DNF_STATE_ACTION_REMOVE)
+        {
+          g_autoptr(GPtrArray) pkgs_replaced = hy_goal_list_obsoleted_by_package (goal, pkg);
+          g_ptr_array_sort (pkgs_replaced, (GCompareFunc) dnf_package_cmp_cb);
+          for (guint i = 0; i < pkgs_replaced->len; i++)
+            {
+              DnfPackage *pkg = pkgs_replaced->pdata[i];
+              struct libscols_line *replacing_ln = scols_table_new_line (tb, ln);
+              g_autofree gchar *replacing_text = g_strconcat ("replacing ", dnf_package_get_nevra (pkg), NULL);
+              scols_line_set_data (replacing_ln, COL_NEVRA, replacing_text);
+            }
+        }
+    }
+}
+
+
+gboolean
+dnf_utils_conf_main_get_bool_opt (const gchar *name, enum DnfConfPriority *priority)
+{
+    g_autofree gchar *tmp = dnf_conf_main_get_option (name, priority, NULL);
+    return tmp != NULL && (*tmp == '1' || *tmp == 'y' || *tmp == 'Y');
+}
+
+
+gboolean
+dnf_utils_userconfirm (void)
+{
+  gboolean ret;
+  enum DnfConfPriority priority;
+
+  // "assumeno" takes precedence over "assumeyes"
+  if (dnf_utils_conf_main_get_bool_opt ("assumeno", &priority))
+    ret = FALSE;
+  else if (dnf_utils_conf_main_get_bool_opt ("assumeyes", &priority))
+    ret = TRUE;
+  else
+    {
+      gboolean defaultyes = dnf_utils_conf_main_get_bool_opt ("defaultyes", &priority);
+
+      const char *msg;
+      if (defaultyes)
+        msg = "Is this ok [Y/n]: ";
+      else
+        msg = "Is this ok [y/N]: ";
+
+      while (TRUE)
+        {
+          g_print ("%s", msg);
+
+          char choice = getchar ();
+          if (choice == '\n' || choice == '\r')
+            {
+              ret = defaultyes;
+              break;
+            }
+
+          char second = getchar ();
+          for (char ch = second; ch != '\n'; ch = getchar ())
+            ;
+
+          if (second == '\n' || second == '\r')
+            {
+              if (choice == 'y' || choice == 'Y')
+                {
+                  ret = TRUE;
+                  break;
+                }
+              if (choice == 'n' || choice == 'N')
+                {
+                  ret = FALSE;
+                  break;
+                }
+            }
+        }
+    }
+
+    if (!ret)
+      g_print ("Operation aborted.\n");
+
+    return ret;
+}
+
+gboolean
+dnf_utils_print_transaction (DnfContext *ctx)
+{
+  g_autoptr(GPtrArray) pkgs = dnf_goal_get_packages (dnf_context_get_goal (ctx),
+                                                     DNF_PACKAGE_INFO_INSTALL,
+                                                     DNF_PACKAGE_INFO_REINSTALL,
+                                                     DNF_PACKAGE_INFO_DOWNGRADE,
+                                                     DNF_PACKAGE_INFO_UPDATE,
+                                                     DNF_PACKAGE_INFO_REMOVE,
+                                                     -1);
+
+  if (pkgs->len == 0)
+    {
+      g_autofree char * report = dnf_context_get_module_report (ctx);
+      if (report)
+        {
+          g_print ("%s\n", report);
+          return TRUE;
+        } else {
+          g_print ("Nothing to do.\n");
+          return FALSE;
+        }
+    }
+
+  struct libscols_line *ln;
+
+  struct libscols_table *tb = scols_new_table ();
+  scols_table_new_column (tb, "Package",    0.7, SCOLS_FL_TREE);
+  scols_table_new_column (tb, "Repository", 0.2, SCOLS_FL_TRUNC);
+  scols_table_new_column (tb, "Size",       0.1, SCOLS_FL_RIGHT);
+  scols_table_enable_maxout (tb, 1);
+  struct libscols_symbols *sb = scols_new_symbols ();
+  scols_symbols_set_branch (sb, " ");
+  scols_symbols_set_right (sb, " ");
+  scols_symbols_set_vertical (sb, " ");
+  scols_table_set_symbols (tb, sb);
+
+  g_autoptr(GPtrArray) pkgs_install = dnf_goal_get_packages (dnf_context_get_goal (ctx),
+                                                             DNF_PACKAGE_INFO_INSTALL,
+                                                             -1);
+  if (pkgs_install->len != 0)
+    {
+      ln = scols_table_new_line (tb, NULL);
+      scols_line_set_data (ln, COL_NEVRA, "Installing:");
+      dnf_utils_add_transaction_packages (ctx, tb, ln, pkgs_install);
+    }
+
+  g_autoptr(GPtrArray) pkgs_reinstall = dnf_goal_get_packages (dnf_context_get_goal (ctx),
+                                                               DNF_PACKAGE_INFO_REINSTALL,
+                                                               -1);
+  if (pkgs_reinstall->len != 0)
+    {
+      ln = scols_table_new_line (tb, NULL);
+      scols_line_set_data (ln, COL_NEVRA, "Reinstalling:");
+      dnf_utils_add_transaction_packages (ctx, tb, ln, pkgs_reinstall);
+    }
+
+  g_autoptr(GPtrArray) pkgs_upgrade = dnf_goal_get_packages (dnf_context_get_goal (ctx),
+                                                             DNF_PACKAGE_INFO_UPDATE,
+                                                             -1);
+  if (pkgs_upgrade->len != 0)
+    {
+      ln = scols_table_new_line (tb, NULL);
+      scols_line_set_data (ln, COL_NEVRA, "Upgrading:");
+      dnf_utils_add_transaction_packages (ctx, tb, ln, pkgs_upgrade);
+    }
+
+  g_autoptr(GPtrArray) pkgs_obsolete = dnf_goal_get_packages (dnf_context_get_goal (ctx),
+                                                             DNF_PACKAGE_INFO_OBSOLETE,
+                                                             -1);
+
+  g_autoptr(GPtrArray) pkgs_remove = dnf_goal_get_packages (dnf_context_get_goal (ctx),
+                                                            DNF_PACKAGE_INFO_REMOVE,
+                                                            -1);
+  if (pkgs_remove->len != 0)
+    {
+      ln = scols_table_new_line (tb, NULL);
+      scols_line_set_data (ln, COL_NEVRA, "Removing:");
+      dnf_utils_add_transaction_packages (ctx, tb, ln, pkgs_remove);
+    }
+
+  g_autoptr(GPtrArray) pkgs_downgrade = dnf_goal_get_packages (dnf_context_get_goal (ctx),
+                                                               DNF_PACKAGE_INFO_DOWNGRADE,
+                                                               -1);
+  if (pkgs_downgrade->len != 0)
+    {
+      ln = scols_table_new_line (tb, NULL);
+      scols_line_set_data (ln, COL_NEVRA, "Downgrading:");
+      dnf_utils_add_transaction_packages (ctx, tb, ln, pkgs_downgrade);
+    }
+
+  scols_print_table (tb);
+  scols_unref_symbols (sb);
+  scols_unref_table (tb);
+
+  g_print ("Transaction Summary:\n");
+  g_print (" %-15s %4d packages\n", "Installing:", pkgs_install->len);
+  g_print (" %-15s %4d packages\n", "Reinstalling:", pkgs_reinstall->len);
+  g_print (" %-15s %4d packages\n", "Upgrading:", pkgs_upgrade->len);
+  g_print (" %-15s %4d packages\n", "Obsoleting:", pkgs_obsolete->len);
+  g_print (" %-15s %4d packages\n", "Removing:", pkgs_remove->len);
+  g_print (" %-15s %4d packages\n", "Downgrading:", pkgs_downgrade->len);
+
+  g_autofree char * report = dnf_context_get_module_report (ctx);
+  if (report)
+    {
+      g_print ("%s\n", report);
+    }
+  /* check for test mode */
+  DnfTransaction *txn = dnf_context_get_transaction (ctx);
+  if (dnf_transaction_get_flags (txn) & DNF_TRANSACTION_FLAG_TEST)
+    g_print ("Test mode enabled: Microdnf will only download packages, install gpg keys, and check the transaction.\n");
+
+  return TRUE;
+}
diff --git a/rust-dnf/dnf-utils.h b/rust-dnf/dnf-utils.h
new file mode 100644
index 00000000..38c1ae19
--- /dev/null
+++ b/rust-dnf/dnf-utils.h
@@ -0,0 +1,31 @@
+/* dnf-utils.h
+ *
+ * Copyright © 2016 Colin Walters <walters@verbum.org>
+ * Copyright © 2016-2017 Igor Gnatenko <ignatenko@redhat.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <glib.h>
+#include <libdnf/libdnf.h>
+
+G_BEGIN_DECLS
+
+gboolean dnf_utils_print_transaction (DnfContext *ctx);
+gboolean dnf_utils_conf_main_get_bool_opt (const gchar *name, enum DnfConfPriority *priority);
+gboolean dnf_utils_userconfirm (void);
+
+G_END_DECLS
diff --git a/rust-dnf/plugins/Cargo.toml b/rust-dnf/plugins/Cargo.toml
new file mode 100644
index 00000000..f273200f
--- /dev/null
+++ b/rust-dnf/plugins/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "plugins"
+version = "0.1.0"
+edition = "2022"
+
+[dependencies]
+clap = { version = "3.0.14", features = ["derive"] }
+filetime = "0.2"
+chrono = "0.4.19"
\ No newline at end of file
diff --git a/rust-dnf/plugins/clean all/clean.plugin b/rust-dnf/plugins/clean all/clean.plugin
new file mode 100644
index 00000000..5d9b872a
--- /dev/null
+++ b/rust-dnf/plugins/clean all/clean.plugin	
@@ -0,0 +1,9 @@
+[Plugin]
+Module = command_clean
+Embedded = dnf_command_clean_register_types
+Name = clean
+Description = Remove cached data
+Authors = Jaroslav Rohel <jrohel@redhat.com>
+License = GPL-2.0+
+Copyright = Copyright © 2017 Jaroslav Rohel
+X-Command-Syntax = clean all
diff --git a/rust-dnf/plugins/clean all/dnf-command-clean.c b/rust-dnf/plugins/clean all/dnf-command-clean.c
new file mode 100644
index 00000000..0f15ec3a
--- /dev/null
+++ b/rust-dnf/plugins/clean all/dnf-command-clean.c	
@@ -0,0 +1,135 @@
+/* dnf-command-clean.c
+ *
+ * Copyright © 2017 Jaroslav Rohel <jrohel@redhat.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "dnf-command-clean.h"
+
+struct _DnfCommandClean
+{
+  PeasExtensionBase parent_instance;
+};
+
+static void dnf_command_clean_iface_init (DnfCommandInterface *iface);
+
+G_DEFINE_DYNAMIC_TYPE_EXTENDED (DnfCommandClean,
+                                dnf_command_clean,
+                                PEAS_TYPE_EXTENSION_BASE,
+                                0,
+                                G_IMPLEMENT_INTERFACE (DNF_TYPE_COMMAND,
+                                                       dnf_command_clean_iface_init))
+
+static void
+dnf_command_clean_init (DnfCommandClean *self)
+{
+}
+
+static gboolean
+dnf_command_clean_run (DnfCommand      *cmd,
+                       int              argc,
+                       char            *argv[],
+                       GOptionContext  *opt_ctx,
+                       DnfContext      *ctx,
+                       GError         **error)
+{
+  g_auto(GStrv) types = NULL;
+  const GOptionEntry opts[] = {
+    { G_OPTION_REMAINING, '\0', 0, G_OPTION_ARG_STRING_ARRAY, &types, NULL, NULL },
+    { NULL }
+  };
+  g_option_context_add_main_entries (opt_ctx, opts, NULL);
+
+  if (!g_option_context_parse (opt_ctx, &argc, &argv, error))
+    return FALSE;
+
+  if (types == NULL)
+    {
+      g_set_error_literal (error,
+                           G_IO_ERROR,
+                           G_IO_ERROR_FAILED,
+                           "Clean requires argument: all");
+      return FALSE;
+    }
+
+  if (g_strcmp0 (types[0], "all") != 0)
+    {
+      g_set_error (error,
+                   G_IO_ERROR,
+                   G_IO_ERROR_FAILED,
+                  "Invalid clean argument: '%s'", *types);
+      return FALSE;
+    }
+
+  if (types[1] != NULL)
+    {
+      g_set_error_literal (error,
+                           G_IO_ERROR,
+                           G_IO_ERROR_FAILED,
+                           "Too many arguments. Clean accepts only one argument.");
+      return FALSE;
+    }
+
+  /* lock cache */
+  g_autoptr(DnfLock) lock = dnf_lock_new ();
+  dnf_lock_set_lock_dir (lock, dnf_context_get_lock_dir (ctx));
+  guint lock_id = dnf_lock_take (lock,
+                                 DNF_LOCK_TYPE_METADATA,
+                                 DNF_LOCK_MODE_PROCESS,
+                                 error);
+  if (lock_id == 0)
+    return FALSE;
+
+  /* Clean cached data */
+  const gchar *cachedir  = dnf_context_get_cache_dir (ctx);
+  if (!dnf_remove_recursive (cachedir, error))
+    return FALSE;
+  const gchar *solvdir = dnf_context_get_solv_dir (ctx);
+  if (!dnf_remove_recursive (solvdir, error))
+    return FALSE;
+
+  if (!dnf_lock_release (lock, lock_id, error))
+    return FALSE;
+
+  g_print ("Complete.\n");
+
+  return TRUE;
+}
+
+static void
+dnf_command_clean_class_init (DnfCommandCleanClass *klass)
+{
+}
+
+static void
+dnf_command_clean_iface_init (DnfCommandInterface *iface)
+{
+  iface->run = dnf_command_clean_run;
+}
+
+static void
+dnf_command_clean_class_finalize (DnfCommandCleanClass *klass)
+{
+}
+
+G_MODULE_EXPORT void
+dnf_command_clean_register_types (PeasObjectModule *module)
+{
+  dnf_command_clean_register_type (G_TYPE_MODULE (module));
+
+  peas_object_module_register_extension_type (module,
+                                              DNF_TYPE_COMMAND,
+                                              DNF_TYPE_COMMAND_CLEAN);
+}
diff --git a/rust-dnf/plugins/clean all/dnf-command-clean.gresource.xml b/rust-dnf/plugins/clean all/dnf-command-clean.gresource.xml
new file mode 100644
index 00000000..07e649d6
--- /dev/null
+++ b/rust-dnf/plugins/clean all/dnf-command-clean.gresource.xml	
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<gresources>
+  <gresource prefix="/org/fedoraproject/dnf/plugins/clean">
+    <file>clean.plugin</file>
+  </gresource>
+</gresources>
diff --git a/rust-dnf/plugins/clean all/dnf-command-clean.h b/rust-dnf/plugins/clean all/dnf-command-clean.h
new file mode 100644
index 00000000..ed9a2ebe
--- /dev/null
+++ b/rust-dnf/plugins/clean all/dnf-command-clean.h	
@@ -0,0 +1,31 @@
+/* dnf-command-clean.h
+ *
+ * Copyright © 2017 Jaroslav Rohel <jrohel@redhat.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "dnf-command.h"
+#include <libpeas/peas.h>
+
+G_BEGIN_DECLS
+
+#define DNF_TYPE_COMMAND_CLEAN dnf_command_clean_get_type ()
+G_DECLARE_FINAL_TYPE (DnfCommandClean, dnf_command_clean, DNF, COMMAND_CLEAN, PeasExtensionBase)
+
+G_MODULE_EXPORT void dnf_command_clean_register_types (PeasObjectModule *module);
+
+G_END_DECLS
diff --git a/rust-dnf/plugins/distros-ync/distrosync.plugin b/rust-dnf/plugins/distros-ync/distrosync.plugin
new file mode 100644
index 00000000..aa5a5672
--- /dev/null
+++ b/rust-dnf/plugins/distros-ync/distrosync.plugin
@@ -0,0 +1,11 @@
+[Plugin]
+Module = command_distro-sync
+Embedded = dnf_command_distrosync_register_types
+Name = distro-sync
+Description = Upgrade/downgrade packages to match versions in repositories
+Authors = Neal Gompa <ngompa13@gmail.com>
+License = GPL-2.0+
+Copyright = Copyright © 2021 Neal Gompa
+X-Command-Syntax = distro-sync [PACKAGE…]
+X-Alias-Name = dsync
+X-Alias-Description = Compatibility alias for the "distro-sync" command
diff --git a/rust-dnf/plugins/distros-ync/dnf-command-distrosync.c b/rust-dnf/plugins/distros-ync/dnf-command-distrosync.c
new file mode 100644
index 00000000..1aa536a2
--- /dev/null
+++ b/rust-dnf/plugins/distros-ync/dnf-command-distrosync.c
@@ -0,0 +1,117 @@
+/* dnf-command-distrosync.c
+ *
+ * Copyright © 2021 Neal Gompa <ngompa13@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "dnf-command-distrosync.h"
+#include "dnf-utils.h"
+
+struct _DnfCommandDistroSync
+{
+  PeasExtensionBase parent_instance;
+};
+
+static void dnf_command_distrosync_iface_init (DnfCommandInterface *iface);
+
+G_DEFINE_DYNAMIC_TYPE_EXTENDED (DnfCommandDistroSync,
+                                dnf_command_distrosync,
+                                PEAS_TYPE_EXTENSION_BASE,
+                                0,
+                                G_IMPLEMENT_INTERFACE (DNF_TYPE_COMMAND,
+                                                       dnf_command_distrosync_iface_init))
+
+static void
+dnf_command_distrosync_init (DnfCommandDistroSync *self)
+{
+}
+
+static gboolean
+dnf_command_distrosync_run (DnfCommand      *cmd,
+                            int              argc,
+                            char            *argv[],
+                            GOptionContext  *opt_ctx,
+                            DnfContext      *ctx,
+                            GError         **error)
+{
+  g_auto(GStrv) pkgs = NULL;
+  const GOptionEntry opts[] = {
+    { G_OPTION_REMAINING, '\0', 0, G_OPTION_ARG_STRING_ARRAY, &pkgs, NULL, NULL },
+    { NULL }
+  };
+  g_option_context_add_main_entries (opt_ctx, opts, NULL);
+
+  if (!g_option_context_parse (opt_ctx, &argc, &argv, error))
+    return FALSE;
+
+  if (pkgs == NULL)
+    {
+      if (!dnf_context_distrosync_all (ctx, error))
+        return FALSE;
+    }
+  else
+    {
+      /* Sync each package */
+      for (GStrv pkg = pkgs; *pkg != NULL; pkg++)
+        {
+          if (!dnf_context_distrosync (ctx, *pkg, error))
+            return FALSE;
+        }
+    }
+  DnfGoalActions flags = 0;
+  if (dnf_context_get_best())
+    {
+      flags |= DNF_FORCE_BEST;
+    }
+  if (!dnf_context_get_install_weak_deps ())
+    flags |= DNF_IGNORE_WEAK_DEPS;
+  if (!dnf_goal_depsolve (dnf_context_get_goal (ctx), flags, error))
+    return FALSE;
+  if (!dnf_utils_print_transaction (ctx))
+    return TRUE;
+  if (!dnf_utils_userconfirm ())
+    return FALSE;
+  if (!dnf_context_run (ctx, NULL, error))
+    return FALSE;
+  g_print ("Complete.\n");
+
+  return TRUE;
+}
+
+static void
+dnf_command_distrosync_class_init (DnfCommandDistroSyncClass *klass)
+{
+}
+
+static void
+dnf_command_distrosync_iface_init (DnfCommandInterface *iface)
+{
+  iface->run = dnf_command_distrosync_run;
+}
+
+static void
+dnf_command_distrosync_class_finalize (DnfCommandDistroSyncClass *klass)
+{
+}
+
+G_MODULE_EXPORT void
+dnf_command_distrosync_register_types (PeasObjectModule *module)
+{
+  dnf_command_distrosync_register_type (G_TYPE_MODULE (module));
+
+  peas_object_module_register_extension_type (module,
+                                              DNF_TYPE_COMMAND,
+                                              DNF_TYPE_COMMAND_DISTROSYNC);
+}
diff --git a/rust-dnf/plugins/distros-ync/dnf-command-distrosync.gresource.xml b/rust-dnf/plugins/distros-ync/dnf-command-distrosync.gresource.xml
new file mode 100644
index 00000000..61b94156
--- /dev/null
+++ b/rust-dnf/plugins/distros-ync/dnf-command-distrosync.gresource.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<gresources>
+  <gresource prefix="/org/fedoraproject/dnf/plugins/distrosync">
+    <file>distrosync.plugin</file>
+  </gresource>
+</gresources>
diff --git a/rust-dnf/plugins/distros-ync/dnf-command-distrosync.h b/rust-dnf/plugins/distros-ync/dnf-command-distrosync.h
new file mode 100644
index 00000000..711e7059
--- /dev/null
+++ b/rust-dnf/plugins/distros-ync/dnf-command-distrosync.h
@@ -0,0 +1,31 @@
+/* dnf-command-distrosync.h
+ *
+ * Copyright © 2021 Neal Gompa <ngompa13@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "dnf-command.h"
+#include <libpeas/peas.h>
+
+G_BEGIN_DECLS
+
+#define DNF_TYPE_COMMAND_DISTROSYNC dnf_command_distrosync_get_type ()
+G_DECLARE_FINAL_TYPE (DnfCommandDistroSync, dnf_command_distrosync, DNF, COMMAND_DISTROSYNC, PeasExtensionBase)
+
+G_MODULE_EXPORT void dnf_command_distrosync_register_types (PeasObjectModule *module);
+
+G_END_DECLS
diff --git a/rust-dnf/plugins/dnf-command.c b/rust-dnf/plugins/dnf-command.c
new file mode 100644
index 00000000..fa9d02a5
--- /dev/null
+++ b/rust-dnf/plugins/dnf-command.c
@@ -0,0 +1,41 @@
+/* dnf-command.c
+ *
+ * Copyright © 2016 Igor Gnatenko <ignatenko@redhat.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "dnf-command.h"
+
+G_DEFINE_INTERFACE (DnfCommand, dnf_command, G_TYPE_OBJECT)
+
+static void
+dnf_command_default_init (DnfCommandInterface *iface)
+{
+}
+
+gboolean
+dnf_command_run (DnfCommand      *cmd,
+                 int              argc,
+                 char            *argv[],
+                 GOptionContext  *opt_ctx,
+                 DnfContext      *ctx,
+                 GError         **error)
+{
+  g_return_val_if_fail (DNF_IS_COMMAND (cmd), FALSE);
+
+  DnfCommandInterface *iface = DNF_COMMAND_GET_IFACE (cmd);
+  g_return_val_if_fail (iface->run, TRUE);
+  return iface->run (cmd, argc, argv, opt_ctx, ctx, error);
+}
diff --git a/rust-dnf/plugins/dnf-command.h b/rust-dnf/plugins/dnf-command.h
new file mode 100644
index 00000000..16572c47
--- /dev/null
+++ b/rust-dnf/plugins/dnf-command.h
@@ -0,0 +1,48 @@
+/* dnf-command.h
+ *
+ * Copyright © 2016 Igor Gnatenko <ignatenko@redhat.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <glib-object.h>
+#include <libdnf/libdnf.h>
+
+G_BEGIN_DECLS
+
+#define DNF_TYPE_COMMAND dnf_command_get_type ()
+G_DECLARE_INTERFACE (DnfCommand, dnf_command, DNF, COMMAND, GObject)
+
+struct _DnfCommandInterface
+{
+  GTypeInterface parent_iface;
+
+  gboolean (*run) (DnfCommand      *cmd,
+                   int              argc,
+                   char            *argv[],
+                   GOptionContext  *opt_ctx,
+                   DnfContext      *ctx,
+                   GError         **error);
+};
+
+gboolean dnf_command_run (DnfCommand      *cmd,
+                          int              argc,
+                          char            *argv[],
+                          GOptionContext  *opt_ctx,
+                          DnfContext      *ctx,
+                          GError         **error);
+
+G_END_DECLS
diff --git a/rust-dnf/plugins/dnf-main.c b/rust-dnf/plugins/dnf-main.c
new file mode 100644
index 00000000..661dfee7
--- /dev/null
+++ b/rust-dnf/plugins/dnf-main.c
@@ -0,0 +1,690 @@
+/* dnf-main.c
+ *
+ * Copyright © 2010-2015 Richard Hughes <richard@hughsie.com>
+ * Copyright © 2016 Colin Walters <walters@verbum.org>
+ * Copyright © 2016-2017 Igor Gnatenko <ignatenko@redhat.com>
+ * Copyright © 2017-2021 Jaroslav Rohel <jrohel@redhat.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <locale.h>
+#include <stdlib.h>
+#include <string.h>
+#include <glib.h>
+#include <libpeas/peas.h>
+#include <libdnf/libdnf.h>
+#include "dnf-command.h"
+#include "dnf-utils.h"
+
+typedef enum { ARG_DEFAULT, ARG_FALSE, ARG_TRUE } BoolArgs;
+
+static BoolArgs opt_install_weak_deps = ARG_DEFAULT;
+static BoolArgs opt_allow_vendor_change = ARG_DEFAULT;
+static BoolArgs opt_keepcache = ARG_DEFAULT;
+static gboolean opt_no = FALSE;
+static gboolean opt_yes = FALSE;
+static gboolean opt_nodocs = FALSE;
+static gboolean opt_best = FALSE;
+static gboolean opt_nobest = FALSE;
+static gboolean opt_test = FALSE;
+static gboolean opt_refresh = FALSE;
+static gboolean show_help = FALSE;
+static gboolean dl_pkgs_printed = FALSE;
+static GSList *enable_disable_repos = NULL;
+static gboolean disable_plugins_loading = FALSE;
+static gboolean config_used = FALSE;
+static gboolean enable_disable_plugin_used = FALSE;
+static gboolean installroot_used = FALSE;
+static gboolean cachedir_used = FALSE;
+static gboolean reposdir_used = FALSE;
+static gboolean varsdir_used = FALSE;
+
+static gboolean
+process_global_option (const gchar  *option_name,
+                       const gchar  *value,
+                       gpointer      data,
+                       GError      **error)
+{
+  g_autoptr(GError) local_error = NULL;
+  DnfContext *ctx = DNF_CONTEXT (data);
+
+  gboolean ret = TRUE;
+  if (g_strcmp0 (option_name, "--config") == 0)
+    {
+      config_used = TRUE;
+      dnf_context_set_config_file_path (value);
+    }
+  else if (g_strcmp0 (option_name, "--disablerepo") == 0)
+    {
+      enable_disable_repos = g_slist_append (enable_disable_repos, g_strconcat("d", value, NULL));
+    }
+  else if (g_strcmp0 (option_name, "--enablerepo") == 0)
+    {
+      enable_disable_repos = g_slist_append (enable_disable_repos, g_strconcat("e", value, NULL));
+    }
+  else if (g_strcmp0 (option_name, "--disableplugin") == 0)
+    {
+      g_auto(GStrv) patterns = g_strsplit (value, ",", -1);
+      for (char **it = patterns; *it; ++it)
+        dnf_context_disable_plugins (*it);
+      enable_disable_plugin_used = TRUE;
+    }
+  else if (g_strcmp0 (option_name, "--enableplugin") == 0)
+    {
+      g_auto(GStrv) patterns = g_strsplit (value, ",", -1);
+      for (char **it = patterns; *it; ++it)
+        dnf_context_enable_plugins (*it);
+      enable_disable_plugin_used = TRUE;
+    }
+  else if (g_strcmp0 (option_name, "--installroot") == 0)
+    {
+      installroot_used = TRUE;
+      if (value[0] != '/')
+        {
+          local_error = g_error_new (G_OPTION_ERROR,
+                                     G_OPTION_ERROR_BAD_VALUE,
+                                     "Absolute path must be used");
+          ret = FALSE;
+        }
+      else
+        {
+          dnf_context_set_install_root (ctx, value);
+        }
+    }
+  else if (g_strcmp0 (option_name, "--releasever") == 0)
+    {
+      dnf_context_set_release_ver (ctx, value);
+    }
+  else if (g_strcmp0 (option_name, "--setopt") == 0)
+    {
+      g_auto(GStrv) setopt = g_strsplit (value, "=", 2);
+      if (!setopt[0] || !setopt[1])
+        {
+          local_error = g_error_new (G_OPTION_ERROR,
+                                     G_OPTION_ERROR_BAD_VALUE,
+                                     "Missing value in: %s", value);
+          ret = FALSE;
+        }
+      else if (strchr (setopt[0], '.'))
+        { /* repository option, pass to libdnf */
+          ret = dnf_conf_add_setopt (setopt[0], DNF_CONF_COMMANDLINE, setopt[1], &local_error);
+        }
+      else if (strcmp (setopt[0], "tsflags") == 0)
+        {
+          g_auto(GStrv) tsflags = g_strsplit (setopt[1], ",", -1);
+          for (char **it = tsflags; *it; ++it)
+            {
+              if (strcmp (*it, "nodocs") == 0)
+                opt_nodocs = TRUE;
+              else if (strcmp (*it, "test") == 0)
+                opt_test = TRUE;
+              else
+                {
+                  local_error = g_error_new (G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
+                                            "Unknown tsflag: %s", *it);
+                  ret = FALSE;
+                  break;
+                }
+            }
+        }
+      else if (strcmp (setopt[0], "module_platform_id") == 0)
+        {
+          const char *module_platform_id = setopt[1];
+          if (module_platform_id[0] != '\0')
+            {
+              dnf_context_set_platform_module (ctx, module_platform_id);
+            }
+          else
+            {
+              local_error = g_error_new (G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
+                                         "Empty value in: %s", value);
+              ret = FALSE;
+            }
+        }
+      else if (strcmp (setopt[0], "cachedir") == 0)
+        {
+          cachedir_used = TRUE;
+          const char *cachedir = setopt[1];
+          if (cachedir[0] != '\0')
+            {
+              g_autofree gchar *metadatadir = g_build_path ("/", cachedir, "metadata", NULL);
+              dnf_context_set_cache_dir (ctx, metadatadir);
+              g_autofree gchar *solvdir = g_build_path ("/", cachedir, "solv", NULL);
+              dnf_context_set_solv_dir (ctx, solvdir);
+              g_autofree gchar *lockdir = g_build_path ("/", cachedir, "lock", NULL);
+              dnf_context_set_lock_dir (ctx, lockdir);
+            }
+          else
+            {
+              local_error = g_error_new (G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
+                                         "Empty value in: %s", value);
+              ret = FALSE;
+            }
+        }
+      else if (strcmp (setopt[0], "install_weak_deps") == 0)
+        {
+          const char *setopt_val = setopt[1];
+          if (setopt_val[0] == '1' && setopt_val[1] == '\0')
+            opt_install_weak_deps = ARG_TRUE;
+          else if (setopt_val[0] == '0' && setopt_val[1] == '\0')
+            opt_install_weak_deps = ARG_FALSE;
+          else
+            {
+              local_error = g_error_new (G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
+                                         "Invalid boolean value \"%s\" in: %s", setopt[1], value);
+              ret = FALSE;
+            }
+        }
+      else if (strcmp (setopt[0], "allow_vendor_change") == 0)
+        {
+          const char *setopt_val = setopt[1];
+          if (setopt_val[0] == '1' && setopt_val[1] == '\0')
+            opt_allow_vendor_change = ARG_TRUE;
+          else if (setopt_val[0] == '0' && setopt_val[1] == '\0')
+            opt_allow_vendor_change = ARG_FALSE;
+          else
+            {
+              local_error = g_error_new (G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
+                                         "Invalid boolean value \"%s\" in: %s", setopt[1], value);
+              ret = FALSE;
+            }
+        }
+      else if (strcmp (setopt[0], "keepcache") == 0)
+        {
+          const char *setopt_val = setopt[1];
+          if (setopt_val[0] == '1' && setopt_val[1] == '\0')
+            opt_keepcache = ARG_TRUE;
+          else if (setopt_val[0] == '0' && setopt_val[1] == '\0')
+            opt_keepcache = ARG_FALSE;
+          else
+            {
+              local_error = g_error_new (G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
+                                         "Invalid boolean value \"%s\" in: %s", setopt[1], value);
+              ret = FALSE;
+            }
+        }
+      else if (strcmp (setopt[0], "reposdir") == 0)
+        {
+          reposdir_used = TRUE;
+          g_auto(GStrv) reposdir = g_strsplit (setopt[1], ",", -1);
+          dnf_context_set_repos_dir (ctx, (const gchar * const *)reposdir);
+        }
+      else if (strcmp (setopt[0], "varsdir") == 0)
+        {
+          varsdir_used = TRUE;
+          g_auto(GStrv) varsdir = g_strsplit (setopt[1], ",", -1);
+          dnf_context_set_vars_dir (ctx, (const gchar * const *)varsdir);
+        }
+      else
+        {
+          local_error = g_error_new (G_OPTION_ERROR,
+                                     G_OPTION_ERROR_BAD_VALUE,
+                                     "Unable to handle: %s", value);
+          ret = FALSE;
+        }
+    }
+  else
+    g_assert_not_reached ();
+
+  if (local_error != NULL)
+    g_set_error (error,
+                 G_OPTION_ERROR,
+                 G_OPTION_ERROR_BAD_VALUE,
+                 "(%s) %s", option_name, local_error->message);
+
+  return ret;
+}
+
+static const GOptionEntry global_opts[] = {
+  { "assumeno", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_NONE, &opt_no, "Automatically answer no for all questions", NULL },
+  { "assumeyes", 'y', G_OPTION_FLAG_NONE, G_OPTION_ARG_NONE, &opt_yes, "Automatically answer yes for all questions", NULL },
+  { "best", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_NONE, &opt_best, "Try the best available package versions in transactions", NULL },
+  { "config", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_CALLBACK, process_global_option, "Configuration file location", "<config file>" },
+  { "disablerepo", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_CALLBACK, process_global_option, "Disable repository by an id", "ID" },
+  { "disableplugin", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_CALLBACK, process_global_option, "Disable plugins by name", "name" },
+  { "enablerepo", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_CALLBACK, process_global_option, "Enable repository by an id", "ID" },
+  { "enableplugin", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_CALLBACK, process_global_option, "Enable plugins by name", "name" },
+  { "nobest", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_NONE, &opt_nobest, "Do not limit the transaction to the best candidates", NULL },
+  { "installroot", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_CALLBACK, process_global_option, "Set install root", "PATH" },
+  { "nodocs", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_NONE, &opt_nodocs, "Install packages without docs", NULL },
+  { "noplugins", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_NONE, &disable_plugins_loading, "Disable loading of plugins", NULL },
+  { "refresh", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_NONE, &opt_refresh, "Set metadata as expired before running the command", NULL },
+  { "releasever", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_CALLBACK, process_global_option, "Override the value of $releasever in config and repo files", "RELEASEVER" },
+  { "setopt", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_CALLBACK, process_global_option,
+    "Override a configuration option (install_weak_deps=0/1, allow_vendor_change=0/1, keepcache=0/1, module_platform_id=<name:stream>, cachedir=<path>, reposdir=<path1>,<path2>,..., tsflags=nodocs/test, varsdir=<path1>,<path2>,..., repo_id.option_name=<value>)", "<option>=<value>" },
+  { NULL }
+};
+
+static DnfContext *
+context_new (void)
+{
+  DnfContext *ctx = dnf_context_new ();
+
+#define CACHEDIR "/var/cache/yum"
+  dnf_context_set_cache_dir (ctx, CACHEDIR"/metadata");
+  dnf_context_set_solv_dir (ctx, CACHEDIR"/solv");
+  dnf_context_set_lock_dir (ctx, CACHEDIR"/lock");
+#undef CACHEDIR
+  dnf_context_set_check_disk_space (ctx, FALSE);
+  dnf_context_set_check_transaction (ctx, TRUE);
+
+  /* Sets a maximum cache age in seconds. It is an upper limit.
+   * The lower value between this value and "metadata_expire" value from repo/global
+   * configuration file is used.
+   * The value G_MAXUINT has a special meaning. It means that the cache never expires
+   * regardless of the settings in the configuration files. */
+  dnf_context_set_cache_age (ctx, G_MAXUINT - 1); 
+
+  return ctx;
+}
+
+static void
+state_action_changed_cb (DnfState       *state,
+                         DnfStateAction  action,
+                         const gchar    *action_hint)
+{
+  switch (action)
+    {
+      case DNF_STATE_ACTION_DOWNLOAD_METADATA:
+        g_print ("Downloading metadata...\n");
+        break;
+      case DNF_STATE_ACTION_DOWNLOAD_PACKAGES:
+        if (!dl_pkgs_printed)
+          {
+            g_print ("Downloading packages...\n");
+            dl_pkgs_printed = TRUE;
+          }
+        break;
+      case DNF_STATE_ACTION_TEST_COMMIT:
+        g_print ("Running transaction test...\n");
+        break;
+      case DNF_STATE_ACTION_INSTALL:
+        if (action_hint)
+          g_print ("Installing: %s\n", action_hint);
+        break;
+      case DNF_STATE_ACTION_REMOVE:
+        if (action_hint)
+          g_print ("Removing: %s\n", action_hint);
+        break;
+      case DNF_STATE_ACTION_UPDATE:
+        if (action_hint)
+          g_print ("Updating: %s\n", action_hint);
+        break;
+      case DNF_STATE_ACTION_OBSOLETE:
+        if (action_hint)
+          g_print ("Obsoleting: %s\n", action_hint);
+        break;
+      case DNF_STATE_ACTION_REINSTALL:
+        if (action_hint)
+          g_print ("Reinstalling: %s\n", action_hint);
+        break;
+      case DNF_STATE_ACTION_DOWNGRADE:
+        if (action_hint)
+          g_print ("Downgrading: %s\n", action_hint);
+        break;
+      case DNF_STATE_ACTION_CLEANUP:
+        if (action_hint)
+          g_print ("Cleanup: %s\n", action_hint);
+        break;
+      default:
+        break;
+    }
+}
+
+static GOptionGroup *
+new_global_opt_group (DnfContext *ctx)
+{
+  GOptionGroup *opt_grp = g_option_group_new ("global",
+                                              "Global Options:",
+                                              "Show global help options",
+                                              ctx,
+                                              NULL);
+  g_option_group_add_entries (opt_grp, global_opts);
+  return opt_grp;
+}
+
+/*
+ * The first non-option is the command/subcommand.
+ * Get it and remove it from arguments.
+ */
+static const gchar *
+get_command (int *argc,
+             char *argv[])
+{
+  const gchar *cmd_name = NULL;
+  for (gint in = 1; in < *argc; in++)
+    {
+      if (cmd_name != NULL)
+        argv[in-1] = argv[in];
+      else if (argv[in][0] != '-')
+        cmd_name = argv[in];
+    }
+  if (cmd_name != NULL) --*argc;
+  return cmd_name;
+}
+
+static gint
+compare_strings (gconstpointer a,
+                 gconstpointer b)
+{
+  return strcmp (a, b);
+}
+
+int
+main (int   argc,
+      char *argv[])
+{
+  g_autoptr(GError) error = NULL;
+  g_autoptr(DnfContext) ctx = context_new ();
+  g_autoptr(PeasEngine) engine = peas_engine_get_default ();
+  g_autoptr(PeasExtensionSet) cmd_exts = NULL;
+  g_autoptr(GOptionContext) opt_ctx = g_option_context_new ("COMMAND");
+  g_autoptr(GOptionContext) subcmd_opt_ctx = NULL;
+  g_autofree gchar *subcmd_opt_param = NULL;
+  GSList *cmds_with_subcmds = NULL;  /* list of commands with subcommands */
+  /* dictionary of aliases for commands */
+  g_autoptr(GHashTable) cmds_aliases = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
+
+  setlocale (LC_ALL, "");
+
+  if (g_getenv ("DNF_IN_TREE_PLUGINS") != NULL)
+    peas_engine_prepend_search_path (engine,
+                                    BUILDDIR"/plugins",
+                                    SRCDIR"/plugins");
+  else
+    peas_engine_prepend_search_path (engine,
+                                     PACKAGE_LIBDIR"/plugins",
+                                     PACKAGE_DATADIR"/plugins");
+
+  peas_engine_prepend_search_path (engine,
+                                   "resource:///org/fedoraproject/dnf/plugins",
+                                   NULL);
+
+  g_autofree gchar *path = g_build_filename (g_get_user_data_dir (),
+                                             "dnf",
+                                             "plugins",
+                                             NULL);
+  peas_engine_prepend_search_path (engine,
+                                   path,
+                                   NULL);
+
+  cmd_exts = peas_extension_set_new (engine,
+                                     DNF_TYPE_COMMAND,
+                                     NULL);
+
+  GString *cmd_summary = g_string_new ("Commands:");
+  for (const GList *plugin = peas_engine_get_plugin_list (engine);
+       plugin != NULL;
+       plugin = plugin->next)
+    {
+      PeasPluginInfo *info = plugin->data;
+      if (!peas_engine_load_plugin (engine, info))
+        continue;
+      if (peas_engine_provides_extension (engine, info, DNF_TYPE_COMMAND))
+        {
+          g_autofree gchar *command_name = g_strdup (peas_plugin_info_get_name (info));
+          g_autofree gchar *command_alias_name = g_strdup (peas_plugin_info_get_external_data (info, "Alias-Name"));
+
+          /* Plugins with a '_' character in command name implement subcommands.
+             E.g. the "command_module_enable" plugin implements the "enable" subcommand of the "module" command. */
+          for (gchar *ptr = command_name; *ptr != '\0'; ++ptr)
+            {
+              if (*ptr == '_')
+                {
+                  *ptr = ' ';
+                  cmds_with_subcmds = g_slist_append (cmds_with_subcmds, g_strndup (command_name, ptr - command_name));
+                  break;
+                }
+            }
+
+          /* Add command alias to the dictionary. */
+          if (command_alias_name)
+              g_hash_table_insert (cmds_aliases, g_strdup (command_alias_name), g_strdup (command_name));
+
+          /*
+           * At least 2 spaces between the command and its description are needed
+           * so that help2man formats it correctly.
+           */
+          g_string_append_printf (cmd_summary, "\n  %-16s     %s", command_name, peas_plugin_info_get_description (info));
+
+          /* If command has an alias with a description, add it to the help. */
+          const gchar *command_alias_description = peas_plugin_info_get_external_data (info, "Alias-Description");
+          if (command_alias_name && command_alias_description)
+            g_string_append_printf (cmd_summary, "\n  %-16s     %s", command_alias_name, command_alias_description);
+        }
+    }
+  g_option_context_set_summary (opt_ctx, cmd_summary->str);
+  g_string_free (cmd_summary, TRUE);
+  g_option_context_set_ignore_unknown_options (opt_ctx, TRUE);
+  g_option_context_set_help_enabled (opt_ctx, FALSE);
+  g_option_context_set_main_group (opt_ctx, new_global_opt_group (ctx));
+
+  /* Is help option in arguments? */
+  for (gint in = 1; in < argc; in++)
+    {
+      if (g_strcmp0 (argv[in], "--") == 0)
+        break;
+      if (g_strcmp0 (argv[in], "-h") == 0 ||
+          g_strcmp0 (argv[in], "--help") == 0 ||
+          g_strcmp0 (argv[in], "--help-all") == 0 ||
+          g_strcmp0 (argv[in], "--help-global") == 0)
+        {
+          show_help = TRUE;
+          break;
+        }
+    }
+
+  /*
+   * Parse the global options.
+   */
+  if (!g_option_context_parse (opt_ctx, &argc, &argv, &error))
+    goto out;
+
+  /*
+   * Initialize dnf context only if help is not requested.
+   */
+  if (!show_help)
+    {
+      if (installroot_used &&
+          !(config_used && disable_plugins_loading && cachedir_used && reposdir_used && varsdir_used))
+        {
+          error = g_error_new_literal (G_OPTION_ERROR, G_OPTION_ERROR_BAD_VALUE,
+            "The \"--installroot\" argument must be used together with \"--config\", "
+            "\"--noplugins\", \"--setopt=cachedir=<path>\", \"--setopt=reposdir=<path>\", "
+            "\"--setopt=varsdir=<path>\" arguments.");
+          goto out;
+        }
+        
+      if (disable_plugins_loading)
+        dnf_context_set_plugins_all_disabled (disable_plugins_loading);
+
+      if (enable_disable_plugin_used && dnf_context_get_plugins_all_disabled ())
+        {
+          if (disable_plugins_loading)
+            g_print ("Loading of plugins is disabled by command line argument \"--noplugins\". "
+                     "Use of \"--enableplugin\" and \"--disableplugin\" has no meaning.\n");
+          else
+            g_print ("Loading of plugins is disabled by configuration file. "
+                     "Use of \"--enableplugin\" and \"--disableplugin\" has no meaning.\n");
+        }
+
+      if (opt_refresh)
+       dnf_context_set_cache_age (ctx, 0);
+
+      if (!dnf_context_setup (ctx, NULL, &error))
+        goto out;
+      DnfState *state = dnf_context_get_state (ctx);
+      g_signal_connect (state, "action-changed",
+                        G_CALLBACK (state_action_changed_cb),
+                        NULL);
+
+      for (GSList * item = enable_disable_repos; item; item = item->next)
+        {
+          gchar * item_data = item->data;
+          int ret;
+          if (item_data[0] == 'd')
+            ret = dnf_context_repo_disable (ctx, item_data+1, &error);
+          else
+            ret = dnf_context_repo_enable (ctx, item_data+1, &error);
+          if (!ret)
+            goto out;
+        }
+
+      /* set transaction flags, allow downgrades for all transaction types */
+      DnfTransaction *txn = dnf_context_get_transaction (ctx);
+      int flags = dnf_transaction_get_flags (txn) | DNF_TRANSACTION_FLAG_ALLOW_DOWNGRADE;
+      if (opt_nodocs)
+        flags |= DNF_TRANSACTION_FLAG_NODOCS;
+      if (opt_test)
+        flags |= DNF_TRANSACTION_FLAG_TEST;
+      dnf_transaction_set_flags (txn, flags);
+      
+      /* Disable calling dnf_goal_depsolve() during dnf_context_run().
+       * The calling is done with hardcoded parameters. We dont want it. */
+      dnf_transaction_set_dont_solve_goal(txn, TRUE);
+
+      if (opt_install_weak_deps == ARG_TRUE)
+        dnf_context_set_install_weak_deps (TRUE);
+      else if (opt_install_weak_deps == ARG_FALSE)
+        dnf_context_set_install_weak_deps (FALSE);
+
+      if (opt_allow_vendor_change == ARG_TRUE)
+        dnf_context_set_allow_vendor_change (TRUE);
+      else if (opt_allow_vendor_change == ARG_FALSE)
+        dnf_context_set_allow_vendor_change (FALSE);
+
+      if (opt_keepcache == ARG_TRUE)
+        dnf_context_set_keep_cache (ctx, TRUE);
+      else if (opt_keepcache == ARG_FALSE)
+        dnf_context_set_keep_cache (ctx, FALSE);
+
+      if (opt_best && opt_nobest)
+        {
+          error = g_error_new_literal(G_OPTION_ERROR,
+                                      G_OPTION_ERROR_BAD_VALUE,
+                                      "Argument --nobest is not allowed with argument --best");
+          goto out;
+        }
+      if (opt_best)
+        {
+          dnf_context_set_best(TRUE);
+        }
+      else if (opt_nobest)
+        {
+          dnf_context_set_best(FALSE);
+        }
+
+      if (opt_no)
+        {
+          dnf_conf_main_set_option ("assumeno", DNF_CONF_COMMANDLINE, "1", NULL);
+        }
+
+      if (opt_yes)
+        {
+          dnf_conf_main_set_option ("assumeyes", DNF_CONF_COMMANDLINE, "1", NULL);
+        }
+    }
+
+  const gchar *cmd_name = get_command (&argc, argv);
+
+  g_option_context_set_help_enabled (opt_ctx, TRUE);
+
+  if (cmd_name == NULL && show_help)
+    {
+      const char *prg_name = strrchr(argv[0], '/');
+      prg_name = prg_name ? prg_name + 1 : argv[0];
+
+      g_set_prgname (prg_name);
+      g_autofree gchar *help = g_option_context_get_help (opt_ctx, TRUE, NULL);
+      g_print ("%s", help);
+      goto out;
+    }
+
+  PeasPluginInfo *plug = NULL;
+  PeasExtension *exten = NULL;
+  const gchar *subcmd_name = NULL;
+  gboolean with_subcmds = FALSE;
+
+  /* Find the plugin that implements the command cmd_name or its subcommand.
+   * Command name (cmd_name) can not contain '_' character. It is reserved for subcomands. */
+  if (cmd_name != NULL && strchr(cmd_name, '_') == NULL)
+    {
+      const gchar *original_cmd_name = g_hash_table_lookup (cmds_aliases, cmd_name);
+      const gchar *search_cmd_name = original_cmd_name ? original_cmd_name : cmd_name;
+      with_subcmds = g_slist_find_custom (cmds_with_subcmds, search_cmd_name, compare_strings) != NULL;
+      g_autofree gchar *mod_name = g_strdup_printf ("command_%s", search_cmd_name);
+      plug = peas_engine_get_plugin_info (engine, mod_name);
+      if (plug == NULL && with_subcmds)
+        {
+          subcmd_name = get_command (&argc, argv);
+          if (subcmd_name != NULL)
+            {
+              g_autofree gchar *submod_name = g_strdup_printf ("command_%s_%s", search_cmd_name, subcmd_name);
+              plug = peas_engine_get_plugin_info (engine, submod_name);
+            }
+        }
+      if (plug != NULL)
+        exten = peas_extension_set_get_extension (cmd_exts, plug);
+    }
+  if (exten == NULL)
+    {
+      if (cmd_name == NULL)
+        error = g_error_new_literal (G_IO_ERROR,
+                                     G_IO_ERROR_FAILED,
+                                     "No command specified");
+      else if (!with_subcmds)
+        error = g_error_new (G_IO_ERROR,
+                             G_IO_ERROR_FAILED,
+                             "Unknown command: '%s'", cmd_name);
+      else if (subcmd_name)
+        error = g_error_new (G_IO_ERROR,
+                             G_IO_ERROR_FAILED,
+                             "Unknown subcommand: '%s'", subcmd_name);
+      else
+        error = g_error_new (G_IO_ERROR,
+                             G_IO_ERROR_FAILED,
+                             "Missing subcommand for command: '%s'", cmd_name);
+
+      g_autofree gchar *help = g_option_context_get_help (opt_ctx, TRUE, NULL);
+      g_printerr ("This is microdnf, which implements subset of `dnf'.\n"
+                  "%s", help);
+      goto out;
+    }
+
+  subcmd_opt_param = g_strdup_printf ("%s - %s",
+    peas_plugin_info_get_external_data (plug, "Command-Syntax"),
+    peas_plugin_info_get_description (plug));
+  subcmd_opt_ctx = g_option_context_new (subcmd_opt_param);
+  g_option_context_add_group (subcmd_opt_ctx, new_global_opt_group (ctx));
+  if (!dnf_command_run (DNF_COMMAND (exten), argc, argv, subcmd_opt_ctx, ctx, &error))
+    goto out;
+
+out:
+  g_slist_free_full(cmds_with_subcmds, g_free);
+
+  if (error != NULL)
+    {
+      const gchar *prefix = "";
+      const gchar *suffix = "";
+      if (isatty (1))
+        {
+          prefix = "\x1b[31m\x1b[1m"; /* red, bold */
+          suffix = "\x1b[22m\x1b[0m"; /* bold off, color reset */
+        }
+      g_printerr ("%serror: %s%s\n", prefix, suffix, error->message);
+      return EXIT_FAILURE;
+    }
+  return EXIT_SUCCESS;
+}
diff --git a/rust-dnf/plugins/dnf-utils.c b/rust-dnf/plugins/dnf-utils.c
new file mode 100644
index 00000000..4bf593dc
--- /dev/null
+++ b/rust-dnf/plugins/dnf-utils.c
@@ -0,0 +1,255 @@
+/* dnf-utils.c
+ *
+ * Copyright © 2010-2015 Richard Hughes <richard@hughsie.com>
+ * Copyright © 2016 Colin Walters <walters@verbum.org>
+ * Copyright © 2016-2017 Igor Gnatenko <ignatenko@redhat.com>
+ * Copyright © 2017-2020 Jaroslav Rohel <jrohel@redhat.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "dnf-utils.h"
+#include <libsmartcols.h>
+
+
+// transaction details columns
+enum { COL_NEVRA, COL_REPO, COL_SIZE };
+
+
+static gint
+dnf_package_cmp_cb (DnfPackage **pkg1, DnfPackage **pkg2)
+{
+  return dnf_package_cmp (*pkg1, *pkg2);
+}
+
+
+static void
+dnf_utils_add_transaction_packages (DnfContext *ctx,
+                                    struct libscols_table *tb,
+                                    struct libscols_line *parent,
+                                    GPtrArray *pkgs)
+{
+  // sort packages by NEVRA
+  g_ptr_array_sort (pkgs, (GCompareFunc) dnf_package_cmp_cb);
+
+  HyGoal goal = dnf_context_get_goal (ctx);
+  for (guint i = 0; i < pkgs->len; i++)
+    {
+      DnfPackage *pkg = pkgs->pdata[i];
+
+      struct libscols_line *ln = scols_table_new_line (tb, parent);
+      scols_line_set_data (ln, COL_NEVRA, dnf_package_get_nevra (pkg));
+      scols_line_set_data (ln, COL_REPO, dnf_package_get_reponame (pkg));
+      g_autofree gchar *formatted_pkg_size = g_format_size (dnf_package_get_size (pkg));
+      g_auto(GStrv) formatted_pkg_size_parts = g_strsplit (formatted_pkg_size, "\xC2\xA0", -1);
+      g_autofree gchar *formatted_pkg_size_simple_spaces = g_strjoinv (" ", formatted_pkg_size_parts);
+      scols_line_set_data (ln, COL_SIZE, formatted_pkg_size_simple_spaces);
+
+      if (dnf_package_get_action (pkg) != DNF_STATE_ACTION_REMOVE)
+        {
+          g_autoptr(GPtrArray) pkgs_replaced = hy_goal_list_obsoleted_by_package (goal, pkg);
+          g_ptr_array_sort (pkgs_replaced, (GCompareFunc) dnf_package_cmp_cb);
+          for (guint i = 0; i < pkgs_replaced->len; i++)
+            {
+              DnfPackage *pkg = pkgs_replaced->pdata[i];
+              struct libscols_line *replacing_ln = scols_table_new_line (tb, ln);
+              g_autofree gchar *replacing_text = g_strconcat ("replacing ", dnf_package_get_nevra (pkg), NULL);
+              scols_line_set_data (replacing_ln, COL_NEVRA, replacing_text);
+            }
+        }
+    }
+}
+
+
+gboolean
+dnf_utils_conf_main_get_bool_opt (const gchar *name, enum DnfConfPriority *priority)
+{
+    g_autofree gchar *tmp = dnf_conf_main_get_option (name, priority, NULL);
+    return tmp != NULL && (*tmp == '1' || *tmp == 'y' || *tmp == 'Y');
+}
+
+
+gboolean
+dnf_utils_userconfirm (void)
+{
+  gboolean ret;
+  enum DnfConfPriority priority;
+
+  // "assumeno" takes precedence over "assumeyes"
+  if (dnf_utils_conf_main_get_bool_opt ("assumeno", &priority))
+    ret = FALSE;
+  else if (dnf_utils_conf_main_get_bool_opt ("assumeyes", &priority))
+    ret = TRUE;
+  else
+    {
+      gboolean defaultyes = dnf_utils_conf_main_get_bool_opt ("defaultyes", &priority);
+
+      const char *msg;
+      if (defaultyes)
+        msg = "Is this ok [Y/n]: ";
+      else
+        msg = "Is this ok [y/N]: ";
+
+      while (TRUE)
+        {
+          g_print ("%s", msg);
+
+          char choice = getchar ();
+          if (choice == '\n' || choice == '\r')
+            {
+              ret = defaultyes;
+              break;
+            }
+
+          char second = getchar ();
+          for (char ch = second; ch != '\n'; ch = getchar ())
+            ;
+
+          if (second == '\n' || second == '\r')
+            {
+              if (choice == 'y' || choice == 'Y')
+                {
+                  ret = TRUE;
+                  break;
+                }
+              if (choice == 'n' || choice == 'N')
+                {
+                  ret = FALSE;
+                  break;
+                }
+            }
+        }
+    }
+
+    if (!ret)
+      g_print ("Operation aborted.\n");
+
+    return ret;
+}
+
+gboolean
+dnf_utils_print_transaction (DnfContext *ctx)
+{
+  g_autoptr(GPtrArray) pkgs = dnf_goal_get_packages (dnf_context_get_goal (ctx),
+                                                     DNF_PACKAGE_INFO_INSTALL,
+                                                     DNF_PACKAGE_INFO_REINSTALL,
+                                                     DNF_PACKAGE_INFO_DOWNGRADE,
+                                                     DNF_PACKAGE_INFO_UPDATE,
+                                                     DNF_PACKAGE_INFO_REMOVE,
+                                                     -1);
+
+  if (pkgs->len == 0)
+    {
+      g_autofree char * report = dnf_context_get_module_report (ctx);
+      if (report)
+        {
+          g_print ("%s\n", report);
+          return TRUE;
+        } else {
+          g_print ("Nothing to do.\n");
+          return FALSE;
+        }
+    }
+
+  struct libscols_line *ln;
+
+  struct libscols_table *tb = scols_new_table ();
+  scols_table_new_column (tb, "Package",    0.7, SCOLS_FL_TREE);
+  scols_table_new_column (tb, "Repository", 0.2, SCOLS_FL_TRUNC);
+  scols_table_new_column (tb, "Size",       0.1, SCOLS_FL_RIGHT);
+  scols_table_enable_maxout (tb, 1);
+  struct libscols_symbols *sb = scols_new_symbols ();
+  scols_symbols_set_branch (sb, " ");
+  scols_symbols_set_right (sb, " ");
+  scols_symbols_set_vertical (sb, " ");
+  scols_table_set_symbols (tb, sb);
+
+  g_autoptr(GPtrArray) pkgs_install = dnf_goal_get_packages (dnf_context_get_goal (ctx),
+                                                             DNF_PACKAGE_INFO_INSTALL,
+                                                             -1);
+  if (pkgs_install->len != 0)
+    {
+      ln = scols_table_new_line (tb, NULL);
+      scols_line_set_data (ln, COL_NEVRA, "Installing:");
+      dnf_utils_add_transaction_packages (ctx, tb, ln, pkgs_install);
+    }
+
+  g_autoptr(GPtrArray) pkgs_reinstall = dnf_goal_get_packages (dnf_context_get_goal (ctx),
+                                                               DNF_PACKAGE_INFO_REINSTALL,
+                                                               -1);
+  if (pkgs_reinstall->len != 0)
+    {
+      ln = scols_table_new_line (tb, NULL);
+      scols_line_set_data (ln, COL_NEVRA, "Reinstalling:");
+      dnf_utils_add_transaction_packages (ctx, tb, ln, pkgs_reinstall);
+    }
+
+  g_autoptr(GPtrArray) pkgs_upgrade = dnf_goal_get_packages (dnf_context_get_goal (ctx),
+                                                             DNF_PACKAGE_INFO_UPDATE,
+                                                             -1);
+  if (pkgs_upgrade->len != 0)
+    {
+      ln = scols_table_new_line (tb, NULL);
+      scols_line_set_data (ln, COL_NEVRA, "Upgrading:");
+      dnf_utils_add_transaction_packages (ctx, tb, ln, pkgs_upgrade);
+    }
+
+  g_autoptr(GPtrArray) pkgs_obsolete = dnf_goal_get_packages (dnf_context_get_goal (ctx),
+                                                             DNF_PACKAGE_INFO_OBSOLETE,
+                                                             -1);
+
+  g_autoptr(GPtrArray) pkgs_remove = dnf_goal_get_packages (dnf_context_get_goal (ctx),
+                                                            DNF_PACKAGE_INFO_REMOVE,
+                                                            -1);
+  if (pkgs_remove->len != 0)
+    {
+      ln = scols_table_new_line (tb, NULL);
+      scols_line_set_data (ln, COL_NEVRA, "Removing:");
+      dnf_utils_add_transaction_packages (ctx, tb, ln, pkgs_remove);
+    }
+
+  g_autoptr(GPtrArray) pkgs_downgrade = dnf_goal_get_packages (dnf_context_get_goal (ctx),
+                                                               DNF_PACKAGE_INFO_DOWNGRADE,
+                                                               -1);
+  if (pkgs_downgrade->len != 0)
+    {
+      ln = scols_table_new_line (tb, NULL);
+      scols_line_set_data (ln, COL_NEVRA, "Downgrading:");
+      dnf_utils_add_transaction_packages (ctx, tb, ln, pkgs_downgrade);
+    }
+
+  scols_print_table (tb);
+  scols_unref_symbols (sb);
+  scols_unref_table (tb);
+
+  g_print ("Transaction Summary:\n");
+  g_print (" %-15s %4d packages\n", "Installing:", pkgs_install->len);
+  g_print (" %-15s %4d packages\n", "Reinstalling:", pkgs_reinstall->len);
+  g_print (" %-15s %4d packages\n", "Upgrading:", pkgs_upgrade->len);
+  g_print (" %-15s %4d packages\n", "Obsoleting:", pkgs_obsolete->len);
+  g_print (" %-15s %4d packages\n", "Removing:", pkgs_remove->len);
+  g_print (" %-15s %4d packages\n", "Downgrading:", pkgs_downgrade->len);
+
+  g_autofree char * report = dnf_context_get_module_report (ctx);
+  if (report)
+    {
+      g_print ("%s\n", report);
+    }
+  /* check for test mode */
+  DnfTransaction *txn = dnf_context_get_transaction (ctx);
+  if (dnf_transaction_get_flags (txn) & DNF_TRANSACTION_FLAG_TEST)
+    g_print ("Test mode enabled: Microdnf will only download packages, install gpg keys, and check the transaction.\n");
+
+  return TRUE;
+}
diff --git a/rust-dnf/plugins/dnf-utils.h b/rust-dnf/plugins/dnf-utils.h
new file mode 100644
index 00000000..38c1ae19
--- /dev/null
+++ b/rust-dnf/plugins/dnf-utils.h
@@ -0,0 +1,31 @@
+/* dnf-utils.h
+ *
+ * Copyright © 2016 Colin Walters <walters@verbum.org>
+ * Copyright © 2016-2017 Igor Gnatenko <ignatenko@redhat.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <glib.h>
+#include <libdnf/libdnf.h>
+
+G_BEGIN_DECLS
+
+gboolean dnf_utils_print_transaction (DnfContext *ctx);
+gboolean dnf_utils_conf_main_get_bool_opt (const gchar *name, enum DnfConfPriority *priority);
+gboolean dnf_utils_userconfirm (void);
+
+G_END_DECLS
diff --git a/rust-dnf/plugins/install/dnf-command-install.c b/rust-dnf/plugins/install/dnf-command-install.c
new file mode 100644
index 00000000..edb561b9
--- /dev/null
+++ b/rust-dnf/plugins/install/dnf-command-install.c
@@ -0,0 +1,120 @@
+/* dnf-command-install.c
+ *
+ * Copyright © 2010-2015 Richard Hughes <richard@hughsie.com>
+ * Copyright © 2016 Colin Walters <walters@verbum.org>
+ * Copyright © 2016-2017 Igor Gnatenko <ignatenko@redhat.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "dnf-command-install.h"
+#include "dnf-utils.h"
+
+struct _DnfCommandInstall
+{
+  PeasExtensionBase parent_instance;
+};
+
+static void dnf_command_install_iface_init (DnfCommandInterface *iface);
+
+G_DEFINE_DYNAMIC_TYPE_EXTENDED (DnfCommandInstall,
+                                dnf_command_install,
+                                PEAS_TYPE_EXTENSION_BASE,
+                                0,
+                                G_IMPLEMENT_INTERFACE (DNF_TYPE_COMMAND,
+                                                       dnf_command_install_iface_init))
+
+static void
+dnf_command_install_init (DnfCommandInstall *self)
+{
+}
+
+static gboolean
+dnf_command_install_run (DnfCommand      *cmd,
+                         int              argc,
+                         char            *argv[],
+                         GOptionContext  *opt_ctx,
+                         DnfContext      *ctx,
+                         GError         **error)
+{
+  g_auto(GStrv) pkgs = NULL;
+  const GOptionEntry opts[] = {
+    { G_OPTION_REMAINING, '\0', 0, G_OPTION_ARG_STRING_ARRAY, &pkgs, NULL, NULL },
+    { NULL }
+  };
+  g_option_context_add_main_entries (opt_ctx, opts, NULL);
+
+  if (!g_option_context_parse (opt_ctx, &argc, &argv, error))
+    return FALSE;
+
+  if (pkgs == NULL)
+    {
+      g_set_error_literal (error,
+                           G_IO_ERROR,
+                           G_IO_ERROR_FAILED,
+                           "Packages are not specified");
+      return FALSE;
+    }
+
+  /* Install each package */
+  for (GStrv pkg = pkgs; *pkg != NULL; pkg++)
+    {
+      if (!dnf_context_install (ctx, *pkg, error))
+        return FALSE;
+    }
+  DnfGoalActions flags = DNF_INSTALL;
+  if (dnf_context_get_best())
+    {
+      flags |= DNF_FORCE_BEST;
+    }
+  if (!dnf_context_get_install_weak_deps ())
+    flags |= DNF_IGNORE_WEAK_DEPS;  
+  if (!dnf_goal_depsolve (dnf_context_get_goal (ctx), flags, error))
+    return FALSE;
+  if (!dnf_utils_print_transaction (ctx))
+    return TRUE;
+  if (!dnf_utils_userconfirm ())
+    return FALSE;
+  if (!dnf_context_run (ctx, NULL, error))
+    return FALSE;
+  g_print ("Complete.\n");
+
+  return TRUE;
+}
+
+static void
+dnf_command_install_class_init (DnfCommandInstallClass *klass)
+{
+}
+
+static void
+dnf_command_install_iface_init (DnfCommandInterface *iface)
+{
+  iface->run = dnf_command_install_run;
+}
+
+static void
+dnf_command_install_class_finalize (DnfCommandInstallClass *klass)
+{
+}
+
+G_MODULE_EXPORT void
+dnf_command_install_register_types (PeasObjectModule *module)
+{
+  dnf_command_install_register_type (G_TYPE_MODULE (module));
+
+  peas_object_module_register_extension_type (module,
+                                              DNF_TYPE_COMMAND,
+                                              DNF_TYPE_COMMAND_INSTALL);
+}
diff --git a/rust-dnf/plugins/install/dnf-command-install.gresource.xml b/rust-dnf/plugins/install/dnf-command-install.gresource.xml
new file mode 100644
index 00000000..843ec5c8
--- /dev/null
+++ b/rust-dnf/plugins/install/dnf-command-install.gresource.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<gresources>
+  <gresource prefix="/org/fedoraproject/dnf/plugins/install">
+    <file>install.plugin</file>
+  </gresource>
+</gresources>
diff --git a/rust-dnf/plugins/install/dnf-command-install.h b/rust-dnf/plugins/install/dnf-command-install.h
new file mode 100644
index 00000000..aac63f5d
--- /dev/null
+++ b/rust-dnf/plugins/install/dnf-command-install.h
@@ -0,0 +1,31 @@
+/* dnf-command-install.h
+ *
+ * Copyright © 2016 Igor Gnatenko <ignatenko@redhat.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "dnf-command.h"
+#include <libpeas/peas.h>
+
+G_BEGIN_DECLS
+
+#define DNF_TYPE_COMMAND_INSTALL dnf_command_install_get_type ()
+G_DECLARE_FINAL_TYPE (DnfCommandInstall, dnf_command_install, DNF, COMMAND_INSTALL, PeasExtensionBase)
+
+G_MODULE_EXPORT void dnf_command_install_register_types (PeasObjectModule *module);
+
+G_END_DECLS
diff --git a/rust-dnf/plugins/install/install.plugin b/rust-dnf/plugins/install/install.plugin
new file mode 100644
index 00000000..45dd84b5
--- /dev/null
+++ b/rust-dnf/plugins/install/install.plugin
@@ -0,0 +1,9 @@
+[Plugin]
+Module = command_install
+Embedded = dnf_command_install_register_types
+Name = install
+Description = Install packages
+Authors = Richard Hughes <richard@hughsie.com>, Colin Walters <walters@verbum.org>, Igor Gnatenko <ignatenko@redhat.com>
+License = GPL-2.0+
+Copyright = Copyright © 2010-2016 Richard Hughes, Colin Walters, Igor Gnatenko
+X-Command-Syntax = install PACKAGE [PACKAGE…]
diff --git a/rust-dnf/plugins/reinstall/dnf-command-reinstall.c b/rust-dnf/plugins/reinstall/dnf-command-reinstall.c
new file mode 100644
index 00000000..0985de4b
--- /dev/null
+++ b/rust-dnf/plugins/reinstall/dnf-command-reinstall.c
@@ -0,0 +1,197 @@
+/*
+ * Copyright (C) 2019 Red Hat, Inc.
+ *
+ * Licensed under the GNU Lesser General Public License Version 2.1
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "dnf-command-reinstall.h"
+#include "dnf-utils.h"
+
+struct _DnfCommandReinstall
+{
+  PeasExtensionBase parent_instance;
+};
+
+static void dnf_command_reinstall_iface_init (DnfCommandInterface *iface);
+
+G_DEFINE_DYNAMIC_TYPE_EXTENDED (DnfCommandReinstall,
+                                dnf_command_reinstall,
+                                PEAS_TYPE_EXTENSION_BASE,
+                                0,
+                                G_IMPLEMENT_INTERFACE (DNF_TYPE_COMMAND,
+                                                       dnf_command_reinstall_iface_init))
+
+static void
+dnf_command_reinstall_init (DnfCommandReinstall *self)
+{
+}
+
+static gint
+compare_nevra (gconstpointer a, gconstpointer b, gpointer user_data)
+{
+  return g_strcmp0 (a, b);
+}
+
+static void
+packageset_free (gpointer pkg_set)
+{
+  dnf_packageset_free (pkg_set);
+}
+
+static gboolean
+dnf_command_reinstall_arg (DnfContext *ctx, const char *arg, GError **error)
+{
+  DnfSack *sack = dnf_context_get_sack (ctx);
+
+  g_auto(HySubject) subject = hy_subject_create (arg);
+  HyNevra out_nevra;
+  hy_autoquery HyQuery query = hy_subject_get_best_solution (subject, sack, NULL, &out_nevra,
+                                                             FALSE, TRUE, TRUE, TRUE, TRUE);
+  if (out_nevra)
+    hy_nevra_free (out_nevra);
+
+  hy_autoquery HyQuery query_installed = hy_query_clone (query);
+  hy_query_filter (query_installed, HY_PKG_REPONAME, HY_EQ, HY_SYSTEM_REPO_NAME);
+  g_autoptr(GPtrArray) installed_pkgs = hy_query_run (query_installed);
+
+  if (installed_pkgs->len == 0)
+    {
+      g_print ("No match for argument: %s\n", arg);
+      return TRUE;
+    }
+  
+  hy_query_filter (query, HY_PKG_REPONAME, HY_NEQ, HY_SYSTEM_REPO_NAME);
+  g_autoptr(GPtrArray) available_pkgs = hy_query_run (query);
+
+  g_autoptr(GTree) available_nevra2pkg_set = g_tree_new_full (compare_nevra, NULL,
+                                                              g_free, packageset_free);
+  for (guint i = 0; i < available_pkgs->len; ++i)
+    {
+      DnfPackage *package = available_pkgs->pdata[i];
+      const char *nevra = dnf_package_get_nevra (package);
+      DnfPackageSet *pkg_set = g_tree_lookup (available_nevra2pkg_set, nevra);
+      if (!pkg_set)
+        {
+          pkg_set = dnf_packageset_new (sack);
+          /* dnf_package_get_nevra() returns pointer to temporary buffer -> copy is needed */
+          g_tree_insert (available_nevra2pkg_set, g_strdup (nevra), pkg_set);
+        }
+      dnf_packageset_add (pkg_set, package);
+    }
+
+  HyGoal goal = dnf_context_get_goal (ctx);
+  for (guint i = 0; i < installed_pkgs->len; ++i)
+    {
+      DnfPackage *package = installed_pkgs->pdata[i];
+      const char *nevra = dnf_package_get_nevra (package);
+      DnfPackageSet *available_pkgs = g_tree_lookup (available_nevra2pkg_set, nevra);
+      if (available_pkgs) {
+          g_auto(HySelector) selector = hy_selector_create (sack);
+          hy_selector_pkg_set (selector, available_pkgs);
+          if (!hy_goal_install_selector (goal, selector, error))
+            return FALSE;
+        }
+      else 
+        g_print ("Installed package %s not available.\n", nevra);
+    }
+    
+  return TRUE;
+}
+
+static gboolean
+dnf_command_reinstall_run (DnfCommand      *cmd,
+                           int              argc,
+                           char            *argv[],
+                           GOptionContext  *opt_ctx,
+                           DnfContext      *ctx,
+                           GError         **error)
+{
+  g_auto(GStrv) pkgs = NULL;
+  const GOptionEntry opts[] = {
+    { G_OPTION_REMAINING, '\0', 0, G_OPTION_ARG_STRING_ARRAY, &pkgs, NULL, NULL },
+    { NULL }
+  };
+  g_option_context_add_main_entries (opt_ctx, opts, NULL);
+
+  if (!g_option_context_parse (opt_ctx, &argc, &argv, error))
+    return FALSE;
+
+  if (pkgs == NULL)
+    {
+      g_set_error_literal (error,
+                           G_IO_ERROR,
+                           G_IO_ERROR_FAILED,
+                           "Packages are not specified");
+      return FALSE;
+    }
+
+  DnfState * state = dnf_context_get_state (ctx);
+  dnf_context_setup_sack_with_flags (ctx, state, DNF_CONTEXT_SETUP_SACK_FLAG_NONE, error);
+
+  for (GStrv pkg = pkgs; *pkg != NULL; pkg++)
+    {
+      if (!dnf_command_reinstall_arg (ctx, *pkg, error))
+        return FALSE;
+    }
+
+  DnfGoalActions flags = DNF_INSTALL;
+  if (!dnf_context_get_install_weak_deps ())
+    flags |= DNF_IGNORE_WEAK_DEPS;  
+  if (!dnf_goal_depsolve (dnf_context_get_goal (ctx), flags, error))
+    return FALSE;
+  
+  DnfTransaction *transaction = dnf_context_get_transaction (ctx);
+  int tsflags = dnf_transaction_get_flags (transaction);
+  dnf_transaction_set_flags(transaction, tsflags | DNF_TRANSACTION_FLAG_ALLOW_REINSTALL);
+
+  if (!dnf_utils_print_transaction (ctx))
+    return TRUE;
+  if (!dnf_utils_userconfirm ())
+    return FALSE;
+  if (!dnf_context_run (ctx, NULL, error))
+    return FALSE;
+
+  g_print ("Complete.\n");
+
+  return TRUE;
+}
+
+static void
+dnf_command_reinstall_class_init (DnfCommandReinstallClass *klass)
+{
+}
+
+static void
+dnf_command_reinstall_iface_init (DnfCommandInterface *iface)
+{
+  iface->run = dnf_command_reinstall_run;
+}
+
+static void
+dnf_command_reinstall_class_finalize (DnfCommandReinstallClass *klass)
+{
+}
+
+G_MODULE_EXPORT void
+dnf_command_reinstall_register_types (PeasObjectModule *module)
+{
+  dnf_command_reinstall_register_type (G_TYPE_MODULE (module));
+
+  peas_object_module_register_extension_type (module,
+                                              DNF_TYPE_COMMAND,
+                                              DNF_TYPE_COMMAND_REINSTALL);
+}
diff --git a/rust-dnf/plugins/reinstall/dnf-command-reinstall.gresource.xml b/rust-dnf/plugins/reinstall/dnf-command-reinstall.gresource.xml
new file mode 100644
index 00000000..82248cf1
--- /dev/null
+++ b/rust-dnf/plugins/reinstall/dnf-command-reinstall.gresource.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<gresources>
+  <gresource prefix="/org/fedoraproject/dnf/plugins/reinstall">
+    <file>reinstall.plugin</file>
+  </gresource>
+</gresources>
diff --git a/rust-dnf/plugins/reinstall/dnf-command-reinstall.h b/rust-dnf/plugins/reinstall/dnf-command-reinstall.h
new file mode 100644
index 00000000..c187ccac
--- /dev/null
+++ b/rust-dnf/plugins/reinstall/dnf-command-reinstall.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2019 Red Hat, Inc.
+ *
+ * Licensed under the GNU Lesser General Public License Version 2.1
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#pragma once
+
+#include "dnf-command.h"
+#include <libpeas/peas.h>
+
+G_BEGIN_DECLS
+
+#define DNF_TYPE_COMMAND_REINSTALL dnf_command_reinstall_get_type ()
+G_DECLARE_FINAL_TYPE (DnfCommandReinstall, dnf_command_reinstall, DNF, COMMAND_REINSTALL, PeasExtensionBase)
+
+G_MODULE_EXPORT void dnf_command_reinstall_register_types (PeasObjectModule *module);
+
+G_END_DECLS
diff --git a/rust-dnf/plugins/reinstall/reinstall.plugin b/rust-dnf/plugins/reinstall/reinstall.plugin
new file mode 100644
index 00000000..4a459770
--- /dev/null
+++ b/rust-dnf/plugins/reinstall/reinstall.plugin
@@ -0,0 +1,9 @@
+[Plugin]
+Module = command_reinstall
+Embedded = dnf_command_reinstall_register_types
+Name = reinstall
+Description = Reinstall packages
+Authors = Jaroslav Rohel <jrohel@redhat.com>
+License = GPL-2.0+
+Copyright = Copyright (C) 2019 Red Hat, Inc.
+X-Command-Syntax = reinstall PACKAGE [PACKAGE…]
diff --git a/rust-dnf/plugins/remove/dnf-command-remove.c b/rust-dnf/plugins/remove/dnf-command-remove.c
new file mode 100644
index 00000000..4ac17ee8
--- /dev/null
+++ b/rust-dnf/plugins/remove/dnf-command-remove.c
@@ -0,0 +1,123 @@
+/* dnf-command-remove.c
+ *
+ * Copyright © 2016 Igor Gnatenko <ignatenko@redhat.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "dnf-command-remove.h"
+#include "dnf-utils.h"
+
+struct _DnfCommandRemove
+{
+  PeasExtensionBase parent_instance;
+};
+
+static void dnf_command_remove_iface_init (DnfCommandInterface *iface);
+
+G_DEFINE_DYNAMIC_TYPE_EXTENDED (DnfCommandRemove,
+                                dnf_command_remove,
+                                PEAS_TYPE_EXTENSION_BASE,
+                                0,
+                                G_IMPLEMENT_INTERFACE (DNF_TYPE_COMMAND,
+                                                       dnf_command_remove_iface_init))
+
+static void
+dnf_command_remove_init (DnfCommandRemove *self)
+{
+}
+
+static void
+disable_available_repos (DnfContext *ctx)
+{
+  GPtrArray *repos = dnf_context_get_repos (ctx);
+  for (guint i = 0; i < repos->len; ++i)
+    {
+      DnfRepo * repo = g_ptr_array_index (repos, i);
+      dnf_repo_set_enabled (repo, DNF_REPO_ENABLED_NONE);
+    }
+}
+
+static gboolean
+dnf_command_remove_run (DnfCommand      *cmd,
+                         int              argc,
+                         char            *argv[],
+                         GOptionContext  *opt_ctx,
+                         DnfContext      *ctx,
+                         GError         **error)
+{
+  g_auto(GStrv) pkgs = NULL;
+  const GOptionEntry opts[] = {
+    { G_OPTION_REMAINING, '\0', 0, G_OPTION_ARG_STRING_ARRAY, &pkgs, NULL, NULL },
+    { NULL }
+  };
+  g_option_context_add_main_entries (opt_ctx, opts, NULL);
+
+  if (!g_option_context_parse (opt_ctx, &argc, &argv, error))
+    return FALSE;
+
+  if (pkgs == NULL)
+    {
+      g_set_error_literal (error,
+                           G_IO_ERROR,
+                           G_IO_ERROR_FAILED,
+                           "Packages are not specified");
+      return FALSE;
+    }
+
+  disable_available_repos (ctx);
+
+  /* Remove each package */
+  for (GStrv pkg = pkgs; *pkg != NULL; pkg++)
+    {
+      if (!dnf_context_remove (ctx, *pkg, error))
+        return FALSE;
+    }
+  if (!dnf_goal_depsolve (dnf_context_get_goal (ctx), DNF_ERASE, error))
+    return FALSE;
+  dnf_utils_print_transaction (ctx);
+  if (!dnf_utils_userconfirm ())
+    return FALSE;
+  if (!dnf_context_run (ctx, NULL, error))
+    return FALSE;
+  g_print ("Complete.\n");
+
+  return TRUE;
+}
+
+static void
+dnf_command_remove_class_init (DnfCommandRemoveClass *klass)
+{
+}
+
+static void
+dnf_command_remove_iface_init (DnfCommandInterface *iface)
+{
+  iface->run = dnf_command_remove_run;
+}
+
+static void
+dnf_command_remove_class_finalize (DnfCommandRemoveClass *klass)
+{
+}
+
+G_MODULE_EXPORT void
+dnf_command_remove_register_types (PeasObjectModule *module)
+{
+  dnf_command_remove_register_type (G_TYPE_MODULE (module));
+
+  peas_object_module_register_extension_type (module,
+                                              DNF_TYPE_COMMAND,
+                                              DNF_TYPE_COMMAND_REMOVE);
+}
diff --git a/rust-dnf/plugins/remove/dnf-command-remove.gresource.xml b/rust-dnf/plugins/remove/dnf-command-remove.gresource.xml
new file mode 100644
index 00000000..315f550c
--- /dev/null
+++ b/rust-dnf/plugins/remove/dnf-command-remove.gresource.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<gresources>
+  <gresource prefix="/org/fedoraproject/dnf/plugins/remove">
+    <file>remove.plugin</file>
+  </gresource>
+</gresources>
diff --git a/rust-dnf/plugins/remove/dnf-command-remove.h b/rust-dnf/plugins/remove/dnf-command-remove.h
new file mode 100644
index 00000000..00419872
--- /dev/null
+++ b/rust-dnf/plugins/remove/dnf-command-remove.h
@@ -0,0 +1,31 @@
+/* dnf-command-remove.h
+ *
+ * Copyright © 2016 Igor Gnatenko <ignatenko@redhat.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "dnf-command.h"
+#include <libpeas/peas.h>
+
+G_BEGIN_DECLS
+
+#define DNF_TYPE_COMMAND_REMOVE dnf_command_remove_get_type ()
+G_DECLARE_FINAL_TYPE (DnfCommandRemove, dnf_command_remove, DNF, COMMAND_REMOVE, PeasExtensionBase)
+
+G_MODULE_EXPORT void dnf_command_remove_register_types (PeasObjectModule *module);
+
+G_END_DECLS
diff --git a/rust-dnf/plugins/remove/remove.plugin b/rust-dnf/plugins/remove/remove.plugin
new file mode 100644
index 00000000..db4748a6
--- /dev/null
+++ b/rust-dnf/plugins/remove/remove.plugin
@@ -0,0 +1,9 @@
+[Plugin]
+Module = command_remove
+Embedded = dnf_command_remove_register_types
+Name = remove
+Description = Remove packages
+Authors = Igor Gnatenko <ignatenko@redhat.com>
+License = GPL-2.0+
+Copyright = Copyright © 2016 Igor Gnatenko
+X-Command-Syntax = remove PACKAGE [PACKAGE…]
diff --git a/rust-dnf/plugins/repolist/dnf-command-repolist.gresource.xml b/rust-dnf/plugins/repolist/dnf-command-repolist.gresource.xml
new file mode 100644
index 00000000..0d12b8b8
--- /dev/null
+++ b/rust-dnf/plugins/repolist/dnf-command-repolist.gresource.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<gresources>
+  <gresource prefix="/org/fedoraproject/dnf/plugins/repolist">
+    <file>repolist.plugin</file>
+  </gresource>
+</gresources>
diff --git a/rust-dnf/plugins/repolist/dnf-command-repolist.rs b/rust-dnf/plugins/repolist/dnf-command-repolist.rs
new file mode 100644
index 00000000..b4753980
--- /dev/null
+++ b/rust-dnf/plugins/repolist/dnf-command-repolist.rs
@@ -0,0 +1,162 @@
+#pragma once
+
+#include "dnf-command.h"
+#include <libpeas/peas.h>
+
+G_BEGIN_DECLS
+
+#define DNF_TYPE_COMMAND_REPOLIST dnf_command_repolist_get_type ()
+G_DECLARE_FINAL_TYPE (DnfCommandRepolist, dnf_command_repolist, DNF, COMMAND_REPOLIST, PeasExtensionBase)
+
+G_MODULE_EXPORT void dnf_command_repolist_register_types (PeasObjectModule *module);
+
+G_END_DECLS
+
+
+#include <libsmartcols.h>
+#include <unistd.h>
+
+struct _DnfCommandRepolist
+{
+  PeasExtensionBase parent_instance;
+};
+
+static void dnf_command_repolist_iface_init (DnfCommandInterface *iface);
+
+G_DEFINE_DYNAMIC_TYPE_EXTENDED (DnfCommandRepolist,
+                                dnf_command_repolist,
+                                PEAS_TYPE_EXTENSION_BASE,
+                                0,
+                                G_IMPLEMENT_INTERFACE (DNF_TYPE_COMMAND,
+                                                       dnf_command_repolist_iface_init))
+
+static void
+dnf_command_repolist_init (DnfCommandRepolist *self)
+{
+}
+
+// repository list table columns
+enum { COL_REPO_ID, COL_REPO_NAME, COL_REPO_STATUS };
+
+static struct libscols_table *
+create_repolist_table (gboolean with_status)
+{
+  struct libscols_table *table = scols_new_table ();
+  if (isatty (1))
+    {
+      scols_table_enable_colors (table, 1);
+      scols_table_enable_maxout (table, 1);
+    }
+  struct libscols_column *cl = scols_table_new_column (table, "repo id", 0.4, 0);
+  scols_column_set_cmpfunc(cl, scols_cmpstr_cells, NULL);
+  scols_table_new_column (table, "repo name", 0.5, SCOLS_FL_TRUNC);
+  if (with_status)
+    scols_table_new_column (table, "status", 0.1, SCOLS_FL_RIGHT);
+  return table;
+}
+
+static void
+add_line_into_table (struct libscols_table *table,
+                     gboolean               with_status,
+                     const char            *id,
+                     const char            *descr,
+                     gboolean               enabled)
+{
+  struct libscols_line *ln = scols_table_new_line (table, NULL);
+  scols_line_set_data (ln, COL_REPO_ID, id);
+  scols_line_set_data (ln, COL_REPO_NAME, descr);
+  if (with_status)
+    {
+      scols_line_set_data (ln, COL_REPO_STATUS, enabled ? "enabled" : "disabled");
+      struct libscols_cell * cl = scols_line_get_cell (ln, COL_REPO_STATUS);
+      scols_cell_set_color (cl, enabled ? "green" : "red");
+    }
+}
+
+static gboolean
+dnf_command_repolist_run (DnfCommand      *cmd,
+                          int              argc,
+                          char            *argv[],
+                          GOptionContext  *opt_ctx,
+                          DnfContext      *ctx,
+                          GError         **error)
+{
+  gboolean opt_all = FALSE;
+  gboolean opt_enabled = FALSE;
+  gboolean opt_disabled = FALSE;
+  g_auto(GStrv) opt_repos = NULL;
+  const GOptionEntry opts[] = {
+    { "all", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_NONE, &opt_all, "show all repos", NULL },
+    { "disabled", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_NONE, &opt_disabled, "show disabled repos", NULL },
+    { "enabled", '\0', G_OPTION_FLAG_NONE, G_OPTION_ARG_NONE, &opt_enabled, "show enabled repos (default)", NULL },
+    { G_OPTION_REMAINING, '\0', 0, G_OPTION_ARG_STRING_ARRAY, &opt_repos, NULL, NULL },
+    { NULL }
+  };
+  g_option_context_add_main_entries (opt_ctx, opts, NULL);
+
+  if (!g_option_context_parse (opt_ctx, &argc, &argv, error))
+    return FALSE;
+
+  if (opt_repos && opt_repos[0])
+    {
+      g_set_error (error,
+                   G_OPTION_ERROR,
+                   G_OPTION_ERROR_UNKNOWN_OPTION,
+                   "Unknown argument %s", opt_repos[0]);
+      return FALSE;
+    }
+
+  if (!opt_disabled)
+    opt_enabled = TRUE;
+
+  if (opt_enabled && opt_disabled)
+    opt_all = TRUE;
+
+  struct libscols_table *table = create_repolist_table (opt_all);
+
+  GPtrArray *repos = dnf_context_get_repos (ctx);
+  for (guint i = 0; i < repos->len; ++i)
+    {
+      DnfRepo * repo = g_ptr_array_index (repos, i);
+      gboolean enabled = dnf_repo_get_enabled (repo) & DNF_REPO_ENABLED_PACKAGES;
+      if (opt_all || (opt_enabled && enabled) || (opt_disabled && !enabled))
+        {
+          const gchar * id = dnf_repo_get_id (repo);
+          g_autofree gchar * descr = dnf_repo_get_description (repo);
+          add_line_into_table (table, opt_all, id, descr, enabled);
+        }
+    }
+
+  struct libscols_column *cl = scols_table_get_column (table, COL_REPO_ID);
+  scols_sort_table (table, cl);
+  scols_print_table (table);
+  scols_unref_table (table);
+
+  return TRUE;
+}
+
+static void
+dnf_command_repolist_class_init (DnfCommandRepolistClass *klass)
+{
+}
+
+static void
+dnf_command_repolist_iface_init (DnfCommandInterface *iface)
+{
+  iface->run = dnf_command_repolist_run;
+}
+
+static void
+dnf_command_repolist_class_finalize (DnfCommandRepolistClass *klass)
+{
+}
+
+G_MODULE_EXPORT void
+dnf_command_repolist_register_types (PeasObjectModule *module)
+{
+  dnf_command_repolist_register_type (G_TYPE_MODULE (module));
+
+  peas_object_module_register_extension_type (module,
+                                              DNF_TYPE_COMMAND,
+                                              DNF_TYPE_COMMAND_REPOLIST);
+}
diff --git a/rust-dnf/plugins/repolist/repolist.plugin b/rust-dnf/plugins/repolist/repolist.plugin
new file mode 100644
index 00000000..28bb0a39
--- /dev/null
+++ b/rust-dnf/plugins/repolist/repolist.plugin
@@ -0,0 +1,9 @@
+[Plugin]
+Module = command_repolist
+Embedded = dnf_command_repolist_register_types
+Name = repolist
+Description = List repositories
+Authors = Jaroslav Rohel <jrohel@redhat.com>
+License = GPL-2.0+
+Copyright = Copyright (C) 2019 Red Hat, Inc.
+X-Command-Syntax = repolist [--all] [--disabled] [--enabled]
diff --git a/rust-dnf/src/main.rs b/rust-dnf/src/main.rs
new file mode 100644
index 00000000..e7a11a96
--- /dev/null
+++ b/rust-dnf/src/main.rs
@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, world!");
+}
-- 
Gitee