dnf5: builddep: Argument "--from-repo"

The `--from-repo` argument allows the user to run builddep on
packages in the specified repositories. However, any dependency
resolution takes into account packages from all allowed repositories.

Multiple repository ids can be specified, separated by commas, and globs
can be used. Usage is similar to the `install` command.

**Important Note:** The `builddep` command resolves packages in two
steps:
  1. It first resolves the package specification with the `with_src`
     attribute set to `false`. From these resolved packages, it extracts
     the names of their corresponding source packages.
  2. Then, it retrieves source packages that match the names identified
     in step 1.

Corresponding source packages might reside in different repositories
than their binary counterparts (e.g., a binary package in "fedora" and
its source in "fedora-source"). Therefore, to ensure reliable operation,
you should specify both repositories, like this:
`--from-repo=fedora,fedora-source`.

dnf5-plugins/builddep_plugin/builddep.cpp

@@ -122,6 +122,30 @@ void BuildDepCommand::set_argument_parser() {
     allow_erasing = std::make_unique<AllowErasingOption>(*this);
     auto skip_unavailable = std::make_unique<SkipUnavailableOption>(*this);
     create_allow_downgrade_options(*this);
+
+    {
+        auto from_repo_opt = parser.add_new_named_arg("from-repo");
+        from_repo_opt->set_long_name("from-repo");
+        from_repo_opt->set_description(
+            _("The following items can be selected only from the specified repositories. All enabled repositories will "
+              "still be used to satisfy dependencies."));
+        from_repo_opt->set_has_value(true);
+        from_repo_opt->set_arg_value_help(_("REPO_ID,..."));
+        from_repo_opt->set_parse_hook_func(
+            [this](libdnf5::cli::ArgumentParser::NamedArg *, [[maybe_unused]] const char * option, const char * value) {
+                if (from_repos.empty()) {
+                    from_repos = libdnf5::OptionStringList(value).get_value();
+                } else {
+                    if (from_repos != libdnf5::OptionStringList(value).get_value()) {
+                        throw libdnf5::cli::ArgumentParserConflictingArgumentsError(
+                            M_("\"--from_repo\" already defined with diferent value"));
+                    }
+                }
+                return true;
+            });
+        cmd.register_named_arg(from_repo_opt);
+    }
+
     create_store_option(*this);
 
     auto spec_arg = parser.add_new_named_arg("spec");
@@ -272,6 +296,9 @@ bool BuildDepCommand::add_from_pkg(
     auto & ctx = get_context();
 
     libdnf5::rpm::PackageQuery pkg_query(ctx.get_base());
+    if (!from_repos.empty()) {
+        pkg_query.filter_repo_id(from_repos, libdnf5::sack::QueryCmp::GLOB);
+    }
     libdnf5::ResolveSpecSettings settings;
     settings.set_with_provides(false);
     settings.set_with_filenames(false);
@@ -285,6 +312,9 @@ bool BuildDepCommand::add_from_pkg(
     }
 
     libdnf5::rpm::PackageQuery source_pkgs(ctx.get_base());
+    if (!from_repos.empty()) {
+        source_pkgs.filter_repo_id(from_repos, libdnf5::sack::QueryCmp::GLOB);
+    }
     source_pkgs.filter_arch(std::vector<std::string>{"src", "nosrc"});
     source_pkgs.filter_name(source_names);
     if (source_pkgs.empty()) {

dnf5-plugins/builddep_plugin/builddep.hpp

@@ -65,6 +65,7 @@ private:
     std::vector<std::unique_ptr<libdnf5::utils::fs::TempFile>> downloaded_remotes{};
 
     std::unique_ptr<AllowErasingOption> allow_erasing;
+    std::vector<std::string> from_repos;
 };
 
 

doc/dnf5_plugins/builddep.8.rst

@@ -59,6 +59,8 @@ Options
 ``--no-allow-downgrade``
     | Disable downgrade of dependencies when resolving the requested operation.
 
+.. include:: ../_shared/options/from-repo.rst
+
 ``--spec``
     | Treat command line arguments following this option as spec files.