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lib/repo-refs: Add a flag to exclude listing from refs/mirrors

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Currently the flag OSTREE_REPO_LIST_REFS_EXT_EXCLUDE_REMOTES for
ostree_repo_list_collection_refs() means that refs in refs/remotes/
should be excluded but refs in refs/mirrors/ should still be checked, in
addition to refs/heads/ which is always checked. However in some
situations you want to exclude both remote and mirrored refs and only
check local "owned" ones. So this
commit adds a new flag OSTREE_REPO_LIST_REFS_EXT_EXCLUDE_MIRRORS which
lets you exclude refs/mirrors/ from the listing.

This way we can avoid breaking API but still allow the listing of local
collection-refs.

The impetus for this change is that I'm changing Flatpak to make more
use of refs/mirrors, and we need a way to specify that a collection-ref
is local when using ostree_repo_resolve_collection_ref() in, for
example, the implementation of the repo command. The subsequent commit
will make the changes needed there.

Closes: #1825
Approved by: jlebon
This commit is contained in:
Matthew Leeds 2019-02-21 15:39:45 -08:00 committed by Atomic Bot
parent 23304b8c15
commit 0ecbc6f2a9
2 changed files with 12 additions and 5 deletions
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15
src/libostree/ostree-repo-refs.c
View File

@ -1247,7 +1247,9 @@ _ostree_repo_update_collection_refs (OstreeRepo *self,
* (ostree_repo_get_collection_id()).
*
* If you want to exclude refs from `refs/remotes`, use
* %OSTREE_REPO_LIST_REFS_EXT_EXCLUDE_REMOTES in @flags.
* %OSTREE_REPO_LIST_REFS_EXT_EXCLUDE_REMOTES in @flags. Similarly use
* %OSTREE_REPO_LIST_REFS_EXT_EXCLUDE_MIRRORS to exclude refs from
* `refs/mirrors`.
*
* Returns: %TRUE on success, %FALSE otherwise
* Since: 2018.6
@ -1269,9 +1271,12 @@ ostree_repo_list_collection_refs (OstreeRepo *self,
if (match_collection_id != NULL && !ostree_validate_collection_id (match_collection_id, error))
return FALSE;
const gchar *refs_dirs[] = { "refs/mirrors", "refs/remotes", NULL };
if (flags & OSTREE_REPO_LIST_REFS_EXT_EXCLUDE_REMOTES)
refs_dirs[1] = NULL;
g_autoptr(GPtrArray) refs_dirs = g_ptr_array_new ();
if (!(flags & OSTREE_REPO_LIST_REFS_EXT_EXCLUDE_MIRRORS))
g_ptr_array_add (refs_dirs, "refs/mirrors");
if (!(flags & OSTREE_REPO_LIST_REFS_EXT_EXCLUDE_REMOTES))
g_ptr_array_add (refs_dirs, "refs/remotes");
g_ptr_array_add (refs_dirs, NULL);
g_autoptr(GHashTable) ret_all_refs = NULL;
@ -1301,7 +1306,7 @@ ostree_repo_list_collection_refs (OstreeRepo *self,
g_string_truncate (base_path, 0);
for (const char **iter = refs_dirs; iter && *iter; iter++)
for (const char **iter = (const char **)refs_dirs->pdata; iter && *iter; iter++)
{
const char *refs_dir = *iter;
gboolean refs_dir_exists = FALSE;

2
src/libostree/ostree-repo.h
View File

@ -499,11 +499,13 @@ gboolean ostree_repo_list_refs (OstreeRepo *self,
* @OSTREE_REPO_LIST_REFS_EXT_NONE: No flags.
* @OSTREE_REPO_LIST_REFS_EXT_ALIASES: Only list aliases. Since: 2017.10
* @OSTREE_REPO_LIST_REFS_EXT_EXCLUDE_REMOTES: Exclude remote refs. Since: 2017.11
* @OSTREE_REPO_LIST_REFS_EXT_EXCLUDE_MIRRORS: Exclude mirrored refs. Since: 2019.2
*/
typedef enum {
OSTREE_REPO_LIST_REFS_EXT_NONE = 0,
OSTREE_REPO_LIST_REFS_EXT_ALIASES = (1 << 0),
OSTREE_REPO_LIST_REFS_EXT_EXCLUDE_REMOTES = (1 << 1),
OSTREE_REPO_LIST_REFS_EXT_EXCLUDE_MIRRORS = (1 << 2),
} OstreeRepoListRefsExtFlags;
_OSTREE_PUBLIC