diff options
| -rw-r--r-- | Documentation/git-fast-import.txt | 3 | ||||
| -rw-r--r-- | fast-import.c | 9 | ||||
| -rwxr-xr-x | t/t9300-fast-import.sh | 21 |
3 files changed, 33 insertions, 0 deletions
diff --git a/Documentation/git-fast-import.txt b/Documentation/git-fast-import.txt index 966ba4f213..90a46665c9 100644 --- a/Documentation/git-fast-import.txt +++ b/Documentation/git-fast-import.txt @@ -524,6 +524,9 @@ start with double quote (`"`). If an `LF` or double quote must be encoded into `<path>` shell-style quoting should be used, e.g. `"path/with\n and \" in it"`. +Additionally, in `040000` mode, `<path>` may also be an empty string +(`""`) to specify the root of the tree. + The value of `<path>` must be in canonical form. That is it must not: * contain an empty directory component (e.g. `foo//bar` is invalid), diff --git a/fast-import.c b/fast-import.c index 2317b0fe75..8f68a89234 100644 --- a/fast-import.c +++ b/fast-import.c @@ -1454,6 +1454,15 @@ static int tree_content_set( n = slash1 - p; else n = strlen(p); + if (!slash1 && !n) { + if (!S_ISDIR(mode)) + die("Root cannot be a non-directory"); + hashcpy(root->versions[1].sha1, sha1); + if (root->tree) + release_tree_content_recursive(root->tree); + root->tree = subtree; + return 1; + } if (!n) die("Empty path component found in input"); if (!slash1 && !S_ISDIR(mode) && subtree) diff --git a/t/t9300-fast-import.sh b/t/t9300-fast-import.sh index 7c059204e9..3c0cf0509d 100755 --- a/t/t9300-fast-import.sh +++ b/t/t9300-fast-import.sh @@ -875,6 +875,27 @@ test_expect_success \ compare_diff_raw expect actual' test_expect_success \ + 'N: copy root directory by tree hash' \ + 'cat >expect <<-\EOF && + :100755 000000 f1fb5da718392694d0076d677d6d0e364c79b0bc 0000000000000000000000000000000000000000 D file3/newf + :100644 000000 7123f7f44e39be127c5eb701e5968176ee9d78b1 0000000000000000000000000000000000000000 D file3/oldf + EOF + root=$(git rev-parse refs/heads/branch^0^{tree}) && + cat >input <<-INPUT_END && + commit refs/heads/N6 + committer $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> $GIT_COMMITTER_DATE + data <<COMMIT + copy root directory by tree hash + COMMIT + + from refs/heads/branch^0 + M 040000 $root "" + INPUT_END + git fast-import <input && + git diff-tree -C --find-copies-harder -r N4 N6 >actual && + compare_diff_raw expect actual' + +test_expect_success \ 'N: modify copied tree' \ 'cat >expect <<-\EOF && :100644 100644 fcf778cda181eaa1cbc9e9ce3a2e15ee9f9fe791 fcf778cda181eaa1cbc9e9ce3a2e15ee9f9fe791 C100 newdir/interesting file3/file5 |