diff options
| -rw-r--r-- | Documentation/git-fast-import.txt | 3 | ||||
| -rw-r--r-- | fast-import.c | 13 | ||||
| -rwxr-xr-x | t/t9300-fast-import.sh | 18 |
3 files changed, 31 insertions, 3 deletions
diff --git a/Documentation/git-fast-import.txt b/Documentation/git-fast-import.txt index fd22a9a0c1..c32a9a5aee 100644 --- a/Documentation/git-fast-import.txt +++ b/Documentation/git-fast-import.txt @@ -483,6 +483,9 @@ Marks must be declared (via `mark`) before they can be used. * Any valid Git SHA-1 expression that resolves to a commit. See ``SPECIFYING REVISIONS'' in linkgit:gitrevisions[7] for details. +* The special null SHA-1 (40 zeros) specifies that the branch is to be + removed. + The special case of restarting an incremental import from the current branch value should be written as: ---- diff --git a/fast-import.c b/fast-import.c index fb4738d373..6707a66471 100644 --- a/fast-import.c +++ b/fast-import.c @@ -248,6 +248,7 @@ struct branch { uintmax_t last_commit; uintmax_t num_notes; unsigned active : 1; + unsigned delete : 1; unsigned pack_id : PACK_ID_BITS; unsigned char sha1[20]; }; @@ -1681,10 +1682,13 @@ static int update_branch(struct branch *b) struct ref_lock *lock; unsigned char old_sha1[20]; - if (is_null_sha1(b->sha1)) - return 0; if (read_ref(b->name, old_sha1)) hashclr(old_sha1); + if (is_null_sha1(b->sha1)) { + if (b->delete) + delete_ref(b->name, old_sha1, 0); + return 0; + } lock = lock_any_ref_for_update(b->name, old_sha1, 0, NULL); if (!lock) return error("Unable to lock %s", b->name); @@ -2611,8 +2615,11 @@ static int parse_from(struct branch *b) free(buf); } else parse_from_existing(b); - } else if (!get_sha1(from, b->sha1)) + } else if (!get_sha1(from, b->sha1)) { parse_from_existing(b); + if (is_null_sha1(b->sha1)) + b->delete = 1; + } else die("Invalid ref name or SHA1 expression: %s", from); diff --git a/t/t9300-fast-import.sh b/t/t9300-fast-import.sh index 27263dfb80..5fc9ef262a 100755 --- a/t/t9300-fast-import.sh +++ b/t/t9300-fast-import.sh @@ -2999,4 +2999,22 @@ test_expect_success 'T: ls root tree' ' test_cmp expect actual ' +test_expect_success 'T: delete branch' ' + git branch to-delete && + git fast-import <<-EOF && + reset refs/heads/to-delete + from 0000000000000000000000000000000000000000 + EOF + test_must_fail git rev-parse --verify refs/heads/to-delete +' + +test_expect_success 'T: empty reset doesnt delete branch' ' + git branch not-to-delete && + git fast-import <<-EOF && + reset refs/heads/not-to-delete + EOF + git show-ref && + git rev-parse --verify refs/heads/not-to-delete +' + test_done |