diff options
| -rw-r--r-- | Documentation/fetch-options.txt | 8 | ||||
| -rw-r--r-- | shallow.c | 6 | ||||
| -rwxr-xr-x | t/t5537-fetch-shallow.sh | 16 | ||||
| -rw-r--r-- | upload-pack.c | 2 |
4 files changed, 28 insertions, 4 deletions
diff --git a/Documentation/fetch-options.txt b/Documentation/fetch-options.txt index ba1fe49582..a83d2b4778 100644 --- a/Documentation/fetch-options.txt +++ b/Documentation/fetch-options.txt @@ -14,8 +14,12 @@ branch history. Tags for the deepened commits are not fetched. --unshallow:: - Convert a shallow repository to a complete one, removing all - the limitations imposed by shallow repositories. + If the source repository is complete, convert a shallow + repository to a complete one, removing all the limitations + imposed by shallow repositories. ++ +If the source repository is shallow, fetch as much as possible so that +the current repository has the same history as the source repository. ifndef::git-pull[] --dry-run:: @@ -75,6 +75,7 @@ struct commit_list *get_shallow_commits(struct object_array *heads, int depth, struct commit_list *result = NULL; struct object_array stack = OBJECT_ARRAY_INIT; struct commit *commit = NULL; + struct commit_graft *graft; while (commit || i < heads->nr || stack.nr) { struct commit_list *p; @@ -99,7 +100,10 @@ struct commit_list *get_shallow_commits(struct object_array *heads, int depth, if (parse_commit(commit)) die("invalid commit"); cur_depth++; - if (cur_depth >= depth) { + if ((depth != INFINITE_DEPTH && cur_depth >= depth) || + (is_repository_shallow() && !commit->parents && + (graft = lookup_commit_graft(commit->object.sha1)) != NULL && + graft->nr_parent < 0)) { commit_list_insert(commit, &result); commit->object.flags |= shallow_flag; commit = NULL; diff --git a/t/t5537-fetch-shallow.sh b/t/t5537-fetch-shallow.sh index d2110527ef..022cb2c990 100755 --- a/t/t5537-fetch-shallow.sh +++ b/t/t5537-fetch-shallow.sh @@ -79,6 +79,22 @@ EOF ) ' +test_expect_success 'fetch --unshallow from shallow clone' ' + ( + cd shallow2 && + git fetch --unshallow && + git fsck && + git log --format=%s origin/master >actual && + cat <<EOF >expect && +6 +5 +4 +3 +EOF + test_cmp expect actual + ) +' + test_expect_success 'fetch something upstream has but hidden by clients shallow boundaries' ' # the blob "1" is available in .git but hidden by the # shallow2/.git/shallow and it should be resent diff --git a/upload-pack.c b/upload-pack.c index f082f069ce..28269c7462 100644 --- a/upload-pack.c +++ b/upload-pack.c @@ -619,7 +619,7 @@ static void receive_needs(void) if (depth > 0) { struct commit_list *result = NULL, *backup = NULL; int i; - if (depth == INFINITE_DEPTH) + if (depth == INFINITE_DEPTH && !is_repository_shallow()) for (i = 0; i < shallows.nr; i++) { struct object *object = shallows.objects[i].item; object->flags |= NOT_SHALLOW; |