Default --keep-all-metadata to TRUE and add --discard-additional-metadata

= changelog =
msg: Switch default of --keep-all-metadata to TRUE and add --discard-additional-metadata
type: enhancement
resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1992209

3 files changed, 18 insertions, 5 deletions

diff --git a/doc/createrepo_c.8 b/doc/createrepo_c.8
index c9017c5..1a3e101 100644
--- a/doc/createrepo_c.8
+++ b/doc/createrepo_c.8
@@ -1,6 +1,6 @@
 .\" Man page generated from reStructuredText.
 .
-.TH CREATEREPO_C 8 "2020-07-02" "" ""
+.TH CREATEREPO_C 8 "2021-09-23" "" ""
 .SH NAME
 createrepo_c \- Create rpm-md format (xml-rpm-metadata) repository
 .
@@ -173,7 +173,10 @@ Generate zchunk files as well as the standard repodata.
 Directory containing compression dictionaries for use by zchunk
 .SS \-\-keep\-all\-metadata
 .sp
-Keep all additional metadata (not primary, filelists and other xml or sqlite files, nor their compressed variants) from source repository during update.
+Keep all additional metadata (not primary, filelists and other xml or sqlite files, nor their compressed variants) from source repository during update (default).
+.SS \-\-discard\-additional\-metadata
+.sp
+Discard all additional metadata (not primary, filelists and other xml or sqlite files, nor their compressed variants) from source repository during update.
 .SS \-\-compatibility
 .sp
 Enforce maximal compatibility with classical createrepo (Affects only: \-\-retain\-old\-md).
diff --git a/src/cmd_parser.c b/src/cmd_parser.c
index bbefa08..639d7e9 100644
--- a/src/cmd_parser.c
+++ b/src/cmd_parser.c
@@ -65,6 +65,8 @@ struct CmdOptions _cmd_options = {
         .zck_compression            = FALSE,
         .zck_dict_dir               = NULL,
         .recycle_pkglist            = FALSE,
+
+        .keep_all_metadata          = TRUE,
     };
 
 
@@ -168,6 +170,9 @@ static GOptionEntry cmd_entries[] =
 #endif
     { "keep-all-metadata", 0, 0, G_OPTION_ARG_NONE, &(_cmd_options.keep_all_metadata),
       "Keep all additional metadata (not primary, filelists and other xml or sqlite files, "
+      "nor their compressed variants) from source repository during update (default).", NULL },
+    { "discard-additional-metadata", 0, 0, G_OPTION_ARG_NONE, &(_cmd_options.discard_additional_metadata),
+      "Discard all additional metadata (not primary, filelists and other xml or sqlite files, "
       "nor their compressed variants) from source repository during update.", NULL },
     { "compatibility", 0, 0, G_OPTION_ARG_NONE, &(_cmd_options.compatibility),
       "Enforce maximal compatibility with classical createrepo (Affects only: --retain-old-md).", NULL },
@@ -510,9 +515,13 @@ check_arguments(struct CmdOptions *options,
         x++;
     }
 
-    // Check keep-all-metadata
-    if (options->keep_all_metadata && !options->update) {
-        g_warning("--keep-all-metadata has no effect (--update is not used)");
+    if (options->discard_additional_metadata) {
+        options->keep_all_metadata = FALSE;
+    }
+
+    // Check discard-additional-metadata
+    if (options->discard_additional_metadata && !options->update) {
+        g_warning("--discard-additional-metadata has no effect (--update is not used)");
     }
 
     // Process --distro tags
diff --git a/src/cmd_parser.h b/src/cmd_parser.h
index 32bcf99..03cfcf0 100644
--- a/src/cmd_parser.h
+++ b/src/cmd_parser.h
@@ -77,6 +77,7 @@ struct CmdOptions {
     char *zck_dict_dir;         /*!< directory with zchunk dictionaries */
     gboolean keep_all_metadata; /*!< keep groupfile and updateinfo from source
                                      repo during update */
+    gboolean discard_additional_metadata; /*!< Inverse option to keep_all_metadata */
     gboolean ignore_lock;       /*!< Ignore existing .repodata/ - remove it,
                                      create the new one (empty) to serve as
                                      a lock and use a .repodata.date.pid for