If you use libgit.a to perform reference resolutions on two or more
repositories that contain packed refs, cached_refs will store the packed
refs for the first repository to contain a packed-refs file only.
Subsequent calls to get_packed_refs() will return the *cached* list,
even when you changed to a different repository with set_git_dir().
Thus, references will almost certainly resolve to non-existent commits.
The patch explicitly invalidates the cached list when calling
set_git_dir() which calls setup_git_env().
Signed-off-by: Julius Plenz <plenz@xxxxxxxxxxxxxxxx>
---
cache.h | 1 +
environment.c | 1 +
refs.c | 2 +-
3 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/cache.h b/cache.h
index 08a9022..95491fe 100644
--- a/cache.h
+++ b/cache.h
@@ -881,6 +881,7 @@ extern int check_leading_path(const char *name, int len);
extern int has_dirs_only_path(const char *name, int len, int prefix_len);
extern void schedule_dir_for_removal(const char *name, int len);
extern void remove_scheduled_dirs(void);
+extern void invalidate_cached_refs(void);
extern struct alternate_object_database {
struct alternate_object_database *next;
diff --git a/environment.c b/environment.c
index 9564475..3a7e1dc 100644
--- a/environment.c
+++ b/environment.c
@@ -110,6 +110,7 @@ static void setup_git_env(void)
git_graft_file = git_pathdup("info/grafts");
if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT))
read_replace_refs = 0;
+ invalidate_cached_refs();
}
int is_bare_repository(void)
diff --git a/refs.c b/refs.c
index e3c0511..bbe34fb 100644
--- a/refs.c
+++ b/refs.c
@@ -171,7 +171,7 @@ static void free_ref_list(struct ref_list *list)
}
}
-static void invalidate_cached_refs(void)
+void invalidate_cached_refs(void)
{
struct cached_refs *ca = &cached_refs;
--
1.7.3.1
--
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