The repo setup procedure is updated to detect $GIT_DIR/commondir and
set $GIT_COMMON_DIR properly.
The core.worktree is ignored when $GIT_DIR/commondir presents. This is
because commondir repos are intended for separate/linked checkouts
and pointing them back to a fixed core.worktree just does not make
sense.
Signed-off-by: Nguyễn Thái Ngọc Duy pclo...@gmail.com
---
Documentation/config.txt| 2 ++
Documentation/git-rev-parse.txt | 3 ++
builtin/rev-parse.c | 4 +++
cache.h | 1 +
environment.c | 8 ++---
setup.c | 33 +-
t/t1501-worktree.sh | 76 +
t/t1510-repo-setup.sh | 1 +
trace.c | 1 +
9 files changed, 115 insertions(+), 14 deletions(-)
diff --git a/Documentation/config.txt b/Documentation/config.txt
index 5f4d793..313d4b3 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -381,6 +381,8 @@ false), while all other repositories are assumed to be bare
(bare
core.worktree::
Set the path to the root of the working tree.
+ If GIT_COMMON_DIR environment variable is set, core.worktree
+ is ignored and not used for determining the root of working tree.
This can be overridden by the GIT_WORK_TREE environment
variable and the '--work-tree' command line option.
The value can be an absolute path or relative to the path to
diff --git a/Documentation/git-rev-parse.txt b/Documentation/git-rev-parse.txt
index 33e4e90..8e6ad32 100644
--- a/Documentation/git-rev-parse.txt
+++ b/Documentation/git-rev-parse.txt
@@ -215,6 +215,9 @@ If `$GIT_DIR` is not defined and the current directory
is not detected to lie in a Git repository or work tree
print a message to stderr and exit with nonzero status.
+--git-common-dir::
+ Show `$GIT_COMMON_DIR` if defined, else `$GIT_DIR`.
+
--is-inside-git-dir::
When the current working directory is below the repository
directory print true, otherwise false.
diff --git a/builtin/rev-parse.c b/builtin/rev-parse.c
index e50bc65..c7057ce 100644
--- a/builtin/rev-parse.c
+++ b/builtin/rev-parse.c
@@ -744,6 +744,10 @@ int cmd_rev_parse(int argc, const char **argv, const char
*prefix)
printf(%s%s.git\n, cwd, len cwd[len-1] !=
'/' ? / : );
continue;
}
+ if (!strcmp(arg, --git-common-dir)) {
+ puts(get_git_common_dir());
+ continue;
+ }
if (!strcmp(arg, --resolve-git-dir)) {
const char *gitdir = resolve_gitdir(argv[i+1]);
if (!gitdir)
diff --git a/cache.h b/cache.h
index 51ade32..98b5dd3 100644
--- a/cache.h
+++ b/cache.h
@@ -407,6 +407,7 @@ 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(struct strbuf *sb, const char *gitdir);
extern const char *get_git_namespace(void);
extern const char *strip_namespace(const char *namespaced_ref);
extern const char *get_git_work_tree(void);
diff --git a/environment.c b/environment.c
index c998120..0999fc1 100644
--- a/environment.c
+++ b/environment.c
@@ -126,6 +126,7 @@ static char *expand_namespace(const char *raw_namespace)
static void setup_git_env(void)
{
+ struct strbuf sb = STRBUF_INIT;
const char *gitfile;
const char *shallow_file;
@@ -134,12 +135,9 @@ static void setup_git_env(void)
git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
gitfile = read_gitfile(git_dir);
git_dir = xstrdup(gitfile ? gitfile : git_dir);
- git_common_dir = getenv(GIT_COMMON_DIR_ENVIRONMENT);
- if (git_common_dir) {
+ if (get_common_dir(sb, git_dir))
git_common_dir_env = 1;
- git_common_dir = xstrdup(git_common_dir);
- } else
- git_common_dir = git_dir;
+ git_common_dir = strbuf_detach(sb, NULL);
git_object_dir = getenv(DB_ENVIRONMENT);
if (!git_object_dir) {
git_object_dir = xmalloc(strlen(git_common_dir) + 9);
diff --git a/setup.c b/setup.c
index 42849f3..40ce191 100644
--- a/setup.c
+++ b/setup.c
@@ -170,14 +170,15 @@ void verify_non_filename(const char *prefix, const char
*arg)
'git command [revision...] -- [file...]', arg);
}
-static void get_common_dir(struct strbuf *sb, const char *gitdir)
+int get_common_dir(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);
