The bug that bit me (hard!) and that triggered not only a long series of curses but also my writing a patch and sending it to the list was that `git rev-parse --git-path HEAD` would give *incorrect* output when run in a subdirectory of a regular checkout, but *correct* output when run in a subdirectory of an associated *worktree*.
I had tested the script in question quite a bit, but in a worktree. And in production, it quietly did exactly the wrong thing.
Relative to v1 of the then-single patch, this changed:
- the patch now covers also --git-common-dir and --shared-index-path
- the output is now a relative path when git_dir is relative
- I plucked the tests from Mike's patch series and dropped my ad-hoc
test from t0060.
- While at it, I fixed Mike's test that assumed that the objects/
directory lives in .git/worktrees/<name>/objects/.
Johannes Schindelin (1):
rev-parse: fix several options when running in a subdirectory
Michael Rappazzo (1):
rev-parse tests: add tests executed from a subdirectory
builtin/rev-parse.c | 15 +++++++++++----
t/t1500-rev-parse.sh | 28 ++++++++++++++++++++++++++++
t/t1700-split-index.sh | 17 +++++++++++++++++
t/t2027-worktree-list.sh | 10 +++++++++-
4 files changed, 65 insertions(+), 5 deletions(-)
base-commit: 6e3a7b3398559305c7a239a42e447c21a8f39ff8
Published-As: https://github.com/dscho/git/releases/tag/git-path-in-subdir-v2
Fetch-It-Via: git fetch https://github.com/dscho/git git-path-in-subdir-v2
Interdiff vs v1:
diff --git a/builtin/rev-parse.c b/builtin/rev-parse.c
index f9d5762bf2b..84af2802f6f 100644
--- a/builtin/rev-parse.c
+++ b/builtin/rev-parse.c
@@ -545,6 +545,7 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
unsigned int flags = 0;
const char *name = NULL;
struct object_context unused;
+ struct strbuf buf = STRBUF_INIT;
if (argc > 1 && !strcmp("--parseopt", argv[1]))
return cmd_parseopt(argc - 1, argv + 1, prefix);
@@ -597,13 +598,11 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
}
if (!strcmp(arg, "--git-path")) {
- const char *path;
if (!argv[i + 1])
die("--git-path requires an argument");
- path = git_path("%s", argv[i + 1]);
- if (prefix && !is_absolute_path(path))
- path = real_path(path);
- puts(path);
+ strbuf_reset(&buf);
+ puts(relative_path(git_path("%s", argv[i + 1]),
+ prefix, &buf));
i++;
continue;
}
@@ -825,8 +824,9 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
continue;
}
if (!strcmp(arg, "--git-common-dir")) {
- const char *pfx = prefix ? prefix : "";
- puts(prefix_filename(pfx, strlen(pfx), get_git_common_dir()));
+ strbuf_reset(&buf);
+ puts(relative_path(get_git_common_dir(),
+ prefix, &buf));
continue;
}
if (!strcmp(arg, "--is-inside-git-dir")) {
@@ -849,7 +849,9 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
die(_("Could not read the index"));
if (the_index.split_index) {
const unsigned char *sha1 = the_index.split_index->base_sha1;
- puts(git_path("sharedindex.%s", sha1_to_hex(sha1)));
+ const char *path = git_path("sharedindex.%s", sha1_to_hex(sha1));
+ strbuf_reset(&buf);
+ puts(relative_path(path, prefix, &buf));
}
continue;
}
@@ -910,5 +912,6 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
die_no_single_rev(quiet);
} else
show_default();
+ strbuf_release(&buf);
return 0;
}
diff --git a/t/t0060-path-utils.sh b/t/t0060-path-utils.sh
index 790584fcc54..444b5a4df80 100755
--- a/t/t0060-path-utils.sh
+++ b/t/t0060-path-utils.sh
@@ -271,8 +271,6 @@ relative_path "<null>" "<empty>" ./
relative_path "<null>" "<null>" ./
relative_path "<null>" /foo/a/b ./
-test_git_path "mkdir sub && cd sub && test_when_finished cd .. &&" \
- foo "$(pwd)/.git/foo"
test_git_path A=B info/grafts .git/info/grafts
test_git_path GIT_GRAFT_FILE=foo info/grafts foo
test_git_path GIT_GRAFT_FILE=foo info/////grafts foo
diff --git a/t/t1500-rev-parse.sh b/t/t1500-rev-parse.sh
index 038e24c4014..d74f09ad93e 100755
--- a/t/t1500-rev-parse.sh
+++ b/t/t1500-rev-parse.sh
@@ -87,4 +87,32 @@ test_rev_parse -C work -g ../repo.git -b t 'GIT_DIR=../repo.git, core.bare = tru
test_rev_parse -C work -g ../repo.git -b u 'GIT_DIR=../repo.git, core.bare undefined' false false true ''
+test_expect_success 'git-common-dir from worktree root' '
+ echo .git >expect &&
+ git rev-parse --git-common-dir >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'git-common-dir inside sub-dir' '
+ mkdir -p path/to/child &&
+ test_when_finished "rm -rf path" &&
+ echo "$(git -C path/to/child rev-parse --show-cdup).git" >expect &&
+ git -C path/to/child rev-parse --git-common-dir >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'git-path from worktree root' '
+ echo .git/objects >expect &&
+ git rev-parse --git-path objects >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'git-path inside sub-dir' '
+ mkdir -p path/to/child &&
+ test_when_finished "rm -rf path" &&
+ echo "$(git -C path/to/child rev-parse --show-cdup).git/objects" >expect &&
+ git -C path/to/child rev-parse --git-path objects >actual &&
+ test_cmp expect actual
+'
+
test_done
diff --git a/t/t1700-split-index.sh b/t/t1700-split-index.sh
index 292a0720fcc..446ff34f966 100755
--- a/t/t1700-split-index.sh
+++ b/t/t1700-split-index.sh
@@ -200,4 +200,21 @@ EOF
test_cmp expect actual
'
+test_expect_success 'rev-parse --shared-index-path' '
+ rm -rf .git &&
+ test_create_repo . &&
+ git update-index --split-index &&
+ ls -t .git/sharedindex* | tail -n 1 >expect &&
+ git rev-parse --shared-index-path >actual &&
+ test_cmp expect actual &&
+ mkdir work &&
+ test_when_finished "rm -rf work" &&
+ (
+ cd work &&
+ ls -t ../.git/sharedindex* | tail -n 1 >expect &&
+ git rev-parse --shared-index-path >actual &&
+ test_cmp expect actual
+ )
+'
+
test_done
diff --git a/t/t2027-worktree-list.sh b/t/t2027-worktree-list.sh
index 465eeeacd3d..848da5f3684 100755
--- a/t/t2027-worktree-list.sh
+++ b/t/t2027-worktree-list.sh
@@ -14,10 +14,18 @@ test_expect_success 'rev-parse --git-common-dir on main worktree' '
test_cmp expected actual &&
mkdir sub &&
git -C sub rev-parse --git-common-dir >actual2 &&
- echo sub/.git >expected2 &&
+ echo ../.git >expected2 &&
test_cmp expected2 actual2
'
+test_expect_success 'rev-parse --git-path objects linked worktree' '
+ echo "$(git rev-parse --show-toplevel)/.git/objects" >expect &&
+ test_when_finished "rm -rf linked-tree && git worktree prune" &&
+ git worktree add --detach linked-tree master &&
+ git -C linked-tree rev-parse --git-path objects >actual &&
+ test_cmp expect actual
+'
+
test_expect_success '"list" all worktrees from main' '
echo "$(git rev-parse --show-toplevel) $(git rev-parse --short HEAD) [$(git symbolic-ref --short HEAD)]" >expect &&
test_when_finished "rm -rf here && git worktree prune" &&
Johannes Schindelin
