Allow using `makecontainerpkg` in prepare action

librepomgr/buildactions/buildactionmeta.cpp

@@ -178,6 +178,12 @@ BuildActionMetaInfo::BuildActionMetaInfo()
                     .desc = "Whether PKGBUILDs from official Arch Linux Git repositories should be downloaded (if not present, the AUR will still be checked; local PKGBUILDs still have precedence)",
                     .param = "fetch-official-pkgbuilds",
                 },
+                BuildActionFlagMetaInfo{
+                    .id = static_cast<BuildActionFlagType>(ConductBuildFlags::UseContainer),
+                    .name = "Use container",
+                    .desc = "Uses `makecontainerpkg` instead of using `makepkg` when printing source info; eliminates the need to having pacman on the host by using docker/podman instead",
+                    .param = "use-container",
+                },
             },
             .settings = {
                 BuildActionSettingMetaInfo{

librepomgr/buildactions/buildactionmeta.h

@@ -79,6 +79,7 @@ enum class PrepareBuildFlags : BuildActionFlagType {
     ResetChrootSettings = (1 << 4),
     PullingInFurtherDependenciesUnexpected = (1 << 5),
     FetchOfficialPackageSources = (1 << 6),
+    UseContainer = (1 << 7),
 };
 enum class ConductBuildFlags : BuildActionFlagType {
     None,

librepomgr/buildactions/buildactionprivate.h

@@ -496,6 +496,7 @@ private:
     std::mutex m_mutex;
     std::string m_workingDirectory;
     boost::filesystem::path m_makePkgPath;
+    boost::filesystem::path m_makeContainerPkgPath;
     std::vector<std::string> m_pkgbuildsDirs;
     std::regex m_ignoreLocalPkgbuildsRegex;
     std::unordered_map<std::string, PackageBuildData> m_buildDataByPackage;
@@ -516,6 +517,7 @@ private:
     bool m_pullingInFurtherDependenciesUnexpected = false;
     bool m_pulledInFurtherDependencies = false;
     bool m_fetchOfficialSources = false;
+    bool m_useContainer;
 };
 
 struct LIBREPOMGR_EXPORT BatchProcessingSession : public MultiSession<std::string> {

librepomgr/buildactions/preparebuild.cpp

@@ -77,6 +77,7 @@ void PrepareBuild::run()
     m_resetChrootSettings = flags & PrepareBuildFlags::ResetChrootSettings;
     m_pullingInFurtherDependenciesUnexpected = flags & PrepareBuildFlags::PullingInFurtherDependenciesUnexpected;
     m_fetchOfficialSources = flags & PrepareBuildFlags::FetchOfficialPackageSources;
+    m_useContainer = flags & PrepareBuildFlags::UseContainer;
     if (m_forceBumpPackageVersion && m_keepPkgRelAndEpoch) {
         reportError("Can not force-bump pkgrel and keeping it at the same time.");
         return;
@@ -92,7 +93,11 @@ void PrepareBuild::run()
 
     // read values from global config
     auto setupReadLock = m_setup.lockToRead();
-    m_makePkgPath = findExecutable(m_setup.building.makePkgPath);
+    if (m_useContainer) {
+        m_makeContainerPkgPath = findExecutable(m_setup.building.makeContainerPkgPath);
+    } else {
+        m_makePkgPath = findExecutable(m_setup.building.makePkgPath);
+    }
     copySecondVectorIntoFirstVector(m_pkgbuildsDirs, m_setup.building.pkgbuildsDirs);
     m_ignoreLocalPkgbuildsRegex = m_setup.building.ignoreLocalPkgbuildsRegex;
     m_workingDirectory = determineWorkingDirectory(buildDataWorkingDirectory);
@@ -316,7 +321,8 @@ void PrepareBuild::makeSrcInfo(
         m_setup.building.ioContext, [multiSession, &sourceDirectory, &packageName](boost::process::child &&child, ProcessResult &&result) {
             processSrcInfo(*multiSession, sourceDirectory, packageName, std::move(child), std::move(result));
         });
-    processSession->launch(boost::process::start_dir(sourceDirectory), m_makePkgPath.string(), "--printsrcinfo");
+    processSession->launch(
+        boost::process::start_dir(sourceDirectory), (m_useContainer ? m_makeContainerPkgPath : m_makePkgPath).string(), "--printsrcinfo");
 }
 
 void PrepareBuild::processSrcInfo(WebClient::AurSnapshotQuerySession &multiSession, const std::string &sourceDirectory,