From 176ea747930908669200520ae14f9dbc61cf0d40 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Nguy=E1=BB=85n=20Th=C3=A1i=20Ng=E1=BB=8Dc=20Duy?= Date: Wed, 27 Dec 2017 17:18:39 +0700 Subject: wt-status.c: handle worktree renames MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Before 425a28e0a4 (diff-lib: allow ita entries treated as "not yet exist in index" - 2016-10-24) there are never "new files" in the index, which essentially disables rename detection because we only detect renames when a new file appears in a diff pair. After that commit, an i-t-a entry can appear as a new file in "git diff-files". But the diff callback function in wt-status.c does not handle this case and produces incorrect status output. PS. The reader may notice that this patch adds a new xstrdup() but not a free(). Yes we leak memory (the same for head_path). But wt_status so far has been short lived, this leak should not matter in practice. Noticed-by: Alex Vandiver Helped-by: Igor Djordjevic Signed-off-by: Nguyễn Thái Ngọc Duy Signed-off-by: Junio C Hamano --- Documentation/git-status.txt | 23 +++++++++-------- t/t2203-add-intent.sh | 60 ++++++++++++++++++++++++++++++++++++++++++++ wt-status.c | 22 +++++++++++++--- 3 files changed, 92 insertions(+), 13 deletions(-) diff --git a/Documentation/git-status.txt b/Documentation/git-status.txt index d70abc6afe..f9bd63e18e 100644 --- a/Documentation/git-status.txt +++ b/Documentation/git-status.txt @@ -125,14 +125,15 @@ the status.relativePaths config option below. Short Format ~~~~~~~~~~~~ -In the short-format, the status of each path is shown as +In the short-format, the status of each path is shown as one of these +forms - XY PATH1 -> PATH2 + XY PATH + XY ORIG_PATH -> PATH -where `PATH1` is the path in the `HEAD`, and the " `-> PATH2`" part is -shown only when `PATH1` corresponds to a different path in the -index/worktree (i.e. the file is renamed). The `XY` is a two-letter -status code. +where `ORIG_PATH` is where the renamed/copied contents came +from. `ORIG_PATH` is only shown when the entry is renamed or +copied. The `XY` is a two-letter status code. The fields (including the `->`) are separated from each other by a single space. If a filename contains whitespace or other nonprintable @@ -168,6 +169,8 @@ in which case `XY` are `!!`. [MARC] index and work tree matches [ MARC] M work tree changed since index [ MARC] D deleted in work tree + [ D] R renamed in work tree + [ D] C copied in work tree ------------------------------------------------- D D unmerged, both deleted A U unmerged, added by us @@ -285,13 +288,13 @@ Renamed or copied entries have the following format: of similarity between the source and target of the move or copy). For example "R100" or "C75". The pathname. In a renamed/copied entry, this - is the path in the index and in the working tree. + is the target path. When the `-z` option is used, the 2 pathnames are separated with a NUL (ASCII 0x00) byte; otherwise, a tab (ASCII 0x09) byte separates them. - The pathname in the commit at HEAD. This is only - present in a renamed/copied entry, and tells - where the renamed/copied contents came from. + The pathname in the commit at HEAD or in the index. + This is only present in a renamed/copied entry, and + tells where the renamed/copied contents came from. -------------------------------------------------------- Unmerged entries have the following format; the first character is diff --git a/t/t2203-add-intent.sh b/t/t2203-add-intent.sh index 06e69e8fd2..55b7377e38 100755 --- a/t/t2203-add-intent.sh +++ b/t/t2203-add-intent.sh @@ -162,5 +162,65 @@ test_expect_success 'commit: ita entries ignored in empty commit check' ' ) ' +test_expect_success 'rename detection finds the right names' ' + git init rename-detection && + ( + cd rename-detection && + echo contents >first && + git add first && + git commit -m first && + mv first third && + git add -N third && + + git status | grep -v "^?" >actual.1 && + test_i18ngrep "renamed: *first -> third" actual.1 && + + git status --porcelain | grep -v "^?" >actual.2 && + cat >expected.2 <<-\EOF && + R first -> third + EOF + test_cmp expected.2 actual.2 && + + hash=12f00e90b6ef79117ce6e650416b8cf517099b78 && + git status --porcelain=v2 | grep -v "^?" >actual.3 && + cat >expected.3 <<-EOF && + 2 .R N... 100644 100644 100644 $hash $hash R100 third first + EOF + test_cmp expected.3 actual.3 + ) +' + +test_expect_success 'double rename detection in status' ' + git init rename-detection-2 && + ( + cd rename-detection-2 && + echo contents >first && + git add first && + git commit -m first && + git mv first second && + mv second third && + git add -N third && + + git status | grep -v "^?" >actual.1 && + test_i18ngrep "renamed: *first -> second" actual.1 && + test_i18ngrep "renamed: *second -> third" actual.1 && + + git status --porcelain | grep -v "^?" >actual.2 && + cat >expected.2 <<-\EOF && + R first -> second + R second -> third + EOF + test_cmp expected.2 actual.2 && + + hash=12f00e90b6ef79117ce6e650416b8cf517099b78 && + git status --porcelain=v2 | grep -v "^?" >actual.3 && + cat >expected.3 <<-EOF && + 2 R. N... 100644 100644 100644 $hash $hash R100 second first + 2 .R N... 100644 100644 100644 $hash $hash R100 third second + EOF + test_cmp expected.3 actual.3 + ) +' + test_done diff --git a/wt-status.c b/wt-status.c index 02fda45f05..4858888e9f 100644 --- a/wt-status.c +++ b/wt-status.c @@ -361,8 +361,6 @@ static void wt_longstatus_print_change_data(struct wt_status *s, switch (change_type) { case WT_STATUS_UPDATED: status = d->index_status; - if (d->rename_source) - one_name = d->rename_source; break; case WT_STATUS_CHANGED: if (d->new_submodule_commits || d->dirty_submodule) { @@ -383,6 +381,14 @@ static void wt_longstatus_print_change_data(struct wt_status *s, change_type); } + /* + * Only pick up the rename it's relevant. If the rename is for + * the changed section and we're printing the updated section, + * ignore it. + */ + if (d->rename_status == status) + one_name = d->rename_source; + one = quote_path(one_name, s->prefix, &onebuf); two = quote_path(two_name, s->prefix, &twobuf); @@ -434,7 +440,7 @@ static void wt_status_collect_changed_cb(struct diff_queue_struct *q, struct wt_status_change_data *d; p = q->queue[i]; - it = string_list_insert(&s->change, p->one->path); + it = string_list_insert(&s->change, p->two->path); d = it->util; if (!d) { d = xcalloc(1, sizeof(*d)); @@ -461,6 +467,14 @@ static void wt_status_collect_changed_cb(struct diff_queue_struct *q, /* mode_worktree is zero for a delete. */ break; + case DIFF_STATUS_COPIED: + case DIFF_STATUS_RENAMED: + if (d->rename_status) + die("BUG: multiple renames on the same target? how?"); + d->rename_source = xstrdup(p->one->path); + d->rename_score = p->score * 100 / MAX_SCORE; + d->rename_status = p->status; + /* fallthru */ case DIFF_STATUS_MODIFIED: case DIFF_STATUS_TYPE_CHANGED: case DIFF_STATUS_UNMERGED: @@ -532,6 +546,8 @@ static void wt_status_collect_updated_cb(struct diff_queue_struct *q, case DIFF_STATUS_COPIED: case DIFF_STATUS_RENAMED: + if (d->rename_status) + die("BUG: multiple renames on the same target? how?"); d->rename_source = xstrdup(p->one->path); d->rename_score = p->score * 100 / MAX_SCORE; d->rename_status = p->status; -- cgit v1.2.1