From 11f9dd719104a960d3e2b478477d9055141d1dbc Mon Sep 17 00:00:00 2001 From: Max Kirillov Date: Mon, 14 Sep 2015 01:17:42 +0300 Subject: path: implement common_dir handling in git_pathdup_submodule() When submodule is a linked worktree, "git diff --submodule" and other calls which directly access the submodule's object database do not correctly calculate its path. Fix it by changing the git_pathdup_submodule() behavior, to use either common or per-worktree directory. Do it similarly as for parent repository, but ignore the GIT_COMMON_DIR environment variable, because it would mean common directory for the parent repository and does not make sense for submodule. Also add test for functionality which uses this call. Signed-off-by: Max Kirillov Signed-off-by: Junio C Hamano --- cache.h | 1 + path.c | 22 ++++++++++++++++++---- setup.c | 17 ++++++++++++----- t/t7410-submodule-checkout-to.sh | 10 ++++++++++ 4 files changed, 41 insertions(+), 9 deletions(-) diff --git a/cache.h b/cache.h index 79066e57dc..5eb36b413c 100644 --- a/cache.h +++ b/cache.h @@ -443,6 +443,7 @@ extern char *get_object_directory(void); extern char *get_index_file(void); extern char *get_graft_file(void); extern int set_git_dir(const char *path); +extern int get_common_dir_noenv(struct strbuf *sb, const char *gitdir); extern int get_common_dir(struct strbuf *sb, const char *gitdir); extern const char *get_git_namespace(void); extern const char *strip_namespace(const char *namespaced_ref); diff --git a/path.c b/path.c index 95acbafa68..22b9e0b8d8 100644 --- a/path.c +++ b/path.c @@ -98,7 +98,7 @@ static const char *common_list[] = { NULL }; -static void update_common_dir(struct strbuf *buf, int git_dir_len) +static void update_common_dir(struct strbuf *buf, int git_dir_len, const char *common_dir) { char *base = buf->buf + git_dir_len; const char **p; @@ -115,12 +115,16 @@ static void update_common_dir(struct strbuf *buf, int git_dir_len) path++; is_dir = 1; } + + if (!common_dir) + common_dir = get_git_common_dir(); + if (is_dir && dir_prefix(base, path)) { - replace_dir(buf, git_dir_len, get_git_common_dir()); + replace_dir(buf, git_dir_len, common_dir); return; } if (!is_dir && !strcmp(base, path)) { - replace_dir(buf, git_dir_len, get_git_common_dir()); + replace_dir(buf, git_dir_len, common_dir); return; } } @@ -160,7 +164,7 @@ static void adjust_git_path(struct strbuf *buf, int git_dir_len) else if (git_db_env && dir_prefix(base, "objects")) replace_dir(buf, git_dir_len + 7, get_object_directory()); else if (git_common_dir_env) - update_common_dir(buf, git_dir_len); + update_common_dir(buf, git_dir_len, NULL); } static void do_git_path(struct strbuf *buf, const char *fmt, va_list args) @@ -228,6 +232,8 @@ static void do_submodule_path(struct strbuf *buf, const char *path, const char *fmt, va_list args) { const char *git_dir; + struct strbuf git_submodule_common_dir = STRBUF_INIT; + struct strbuf git_submodule_dir = STRBUF_INIT; strbuf_addstr(buf, path); if (buf->len && buf->buf[buf->len - 1] != '/') @@ -240,9 +246,17 @@ static void do_submodule_path(struct strbuf *buf, const char *path, strbuf_addstr(buf, git_dir); } strbuf_addch(buf, '/'); + strbuf_addstr(&git_submodule_dir, buf->buf); strbuf_vaddf(buf, fmt, args); + + if (get_common_dir_noenv(&git_submodule_common_dir, git_submodule_dir.buf)) + update_common_dir(buf, git_submodule_dir.len, git_submodule_common_dir.buf); + strbuf_cleanup_path(buf); + + strbuf_release(&git_submodule_dir); + strbuf_release(&git_submodule_common_dir); } char *git_pathdup_submodule(const char *path, const char *fmt, ...) diff --git a/setup.c b/setup.c index a17c51e61d..e41e5e1a82 100644 --- a/setup.c +++ b/setup.c @@ -228,15 +228,22 @@ void verify_non_filename(const char *prefix, const char *arg) } int get_common_dir(struct strbuf *sb, const char *gitdir) +{ + const char *git_env_common_dir = getenv(GIT_COMMON_DIR_ENVIRONMENT); + if (git_env_common_dir) { + strbuf_addstr(sb, git_env_common_dir); + return 1; + } else { + return get_common_dir_noenv(sb, gitdir); + } +} + +int get_common_dir_noenv(struct strbuf *sb, const char *gitdir) { struct strbuf data = STRBUF_INIT; struct strbuf path = STRBUF_INIT; - const char *git_common_dir = getenv(GIT_COMMON_DIR_ENVIRONMENT); int ret = 0; - if (git_common_dir) { - strbuf_addstr(sb, git_common_dir); - return 1; - } + strbuf_addf(&path, "%s/commondir", gitdir); if (file_exists(path.buf)) { if (strbuf_read_file(&data, path.buf, 0) <= 0) diff --git a/t/t7410-submodule-checkout-to.sh b/t/t7410-submodule-checkout-to.sh index 3f609e8909..1acef32647 100755 --- a/t/t7410-submodule-checkout-to.sh +++ b/t/t7410-submodule-checkout-to.sh @@ -47,4 +47,14 @@ test_expect_success 'checkout main and initialize independed clones' \ test_expect_success 'can see submodule diffs after independed cloning' \ '(cd fully_cloned_submodule/main && git diff --submodule master"^!" | grep "file1 updated")' +test_expect_success 'checkout sub manually' \ + 'mkdir linked_submodule && + (cd clone/main && + git worktree add "$base_path/linked_submodule/main" "$rev1_hash_main") && + (cd clone/main/sub && + git worktree add "$base_path/linked_submodule/main/sub" "$rev1_hash_sub")' + +test_expect_success 'can see submodule diffs after manual checkout of linked submodule' \ + '(cd linked_submodule/main && git diff --submodule master"^!" | grep "file1 updated")' + test_done -- cgit v1.2.1