diff options
| -rw-r--r-- | refs.c | 23 | ||||
| -rwxr-xr-x | t/t3211-peel-ref.sh | 2 |
2 files changed, 24 insertions, 1 deletions
@@ -877,6 +877,13 @@ void invalidate_ref_cache(const char *submodule) #define PEELED_LINE_LENGTH 42 /* + * The packed-refs header line that we write out. Perhaps other + * traits will be added later. The trailing space is required. + */ +static const char PACKED_REFS_HEADER[] = + "# pack-refs with: peeled fully-peeled \n"; + +/* * Parse one line from a packed-refs file. Write the SHA1 to sha1. * Return a pointer to the refname within the line (null-terminated), * or NULL if there was a problem. @@ -1391,6 +1398,12 @@ static enum peel_status peel_object(const unsigned char *name, unsigned char *sh /* * Peel the entry (if possible) and return its new peel_status. + * + * It is OK to call this function with a packed reference entry that + * might be stale and might even refer to an object that has since + * been garbage-collected. In such a case, if the entry has + * REF_KNOWS_PEELED then leave the status unchanged and return + * PEEL_PEELED or PEEL_NON_TAG; otherwise, return PEEL_INVALID. */ static enum peel_status peel_entry(struct ref_entry *entry) { @@ -1993,6 +2006,15 @@ static int repack_ref_fn(struct ref_entry *entry, void *cb_data) if (len > sizeof(line)) die("too long a refname '%s'", entry->name); write_or_die(*fd, line, len); + if (!peel_entry(entry)) { + /* This reference could be peeled; write the peeled value: */ + if (snprintf(line, sizeof(line), "^%s\n", + sha1_to_hex(entry->u.value.peeled)) != + PEELED_LINE_LENGTH) + die("internal error"); + write_or_die(*fd, line, PEELED_LINE_LENGTH); + } + return 0; } @@ -2023,6 +2045,7 @@ static int repack_without_ref(const char *refname) rollback_lock_file(&packlock); return 0; } + write_or_die(fd, PACKED_REFS_HEADER, strlen(PACKED_REFS_HEADER)); do_for_each_entry_in_dir(packed, 0, repack_ref_fn, &fd); return commit_lock_file(&packlock); } diff --git a/t/t3211-peel-ref.sh b/t/t3211-peel-ref.sh index cca1acb184..3b7caca421 100755 --- a/t/t3211-peel-ref.sh +++ b/t/t3211-peel-ref.sh @@ -61,7 +61,7 @@ test_expect_success 'refs are peeled outside of refs/tags (old packed)' ' test_cmp expect actual ' -test_expect_failure 'peeled refs survive deletion of packed ref' ' +test_expect_success 'peeled refs survive deletion of packed ref' ' git pack-refs --all && cp .git/packed-refs fully-peeled && git branch yadda && |