mirror of
https://github.com/git/git
synced 2024-08-28 03:59:25 +00:00
ac6c561b59
worktree.c contains functions to work with and get information from worktrees. This introduction moves functions related to worktrees from branch.c into worktree.c Signed-off-by: Michael Rappazzo <rappazzo@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
83 lines
2 KiB
C
83 lines
2 KiB
C
#include "cache.h"
|
|
#include "refs.h"
|
|
#include "strbuf.h"
|
|
#include "worktree.h"
|
|
|
|
static char *find_linked_symref(const char *symref, const char *branch,
|
|
const char *id)
|
|
{
|
|
struct strbuf sb = STRBUF_INIT;
|
|
struct strbuf path = STRBUF_INIT;
|
|
struct strbuf gitdir = STRBUF_INIT;
|
|
char *existing = NULL;
|
|
|
|
/*
|
|
* $GIT_COMMON_DIR/$symref (e.g. HEAD) is practically outside
|
|
* $GIT_DIR so resolve_ref_unsafe() won't work (it uses
|
|
* git_path). Parse the ref ourselves.
|
|
*/
|
|
if (id)
|
|
strbuf_addf(&path, "%s/worktrees/%s/%s", get_git_common_dir(), id, symref);
|
|
else
|
|
strbuf_addf(&path, "%s/%s", get_git_common_dir(), symref);
|
|
|
|
if (!strbuf_readlink(&sb, path.buf, 0)) {
|
|
if (!starts_with(sb.buf, "refs/") ||
|
|
check_refname_format(sb.buf, 0))
|
|
goto done;
|
|
} else if (strbuf_read_file(&sb, path.buf, 0) >= 0 &&
|
|
starts_with(sb.buf, "ref:")) {
|
|
strbuf_remove(&sb, 0, strlen("ref:"));
|
|
strbuf_trim(&sb);
|
|
} else
|
|
goto done;
|
|
if (strcmp(sb.buf, branch))
|
|
goto done;
|
|
if (id) {
|
|
strbuf_reset(&path);
|
|
strbuf_addf(&path, "%s/worktrees/%s/gitdir", get_git_common_dir(), id);
|
|
if (strbuf_read_file(&gitdir, path.buf, 0) <= 0)
|
|
goto done;
|
|
strbuf_rtrim(&gitdir);
|
|
} else
|
|
strbuf_addstr(&gitdir, get_git_common_dir());
|
|
strbuf_strip_suffix(&gitdir, ".git");
|
|
|
|
existing = strbuf_detach(&gitdir, NULL);
|
|
done:
|
|
strbuf_release(&path);
|
|
strbuf_release(&sb);
|
|
strbuf_release(&gitdir);
|
|
|
|
return existing;
|
|
}
|
|
|
|
char *find_shared_symref(const char *symref, const char *target)
|
|
{
|
|
struct strbuf path = STRBUF_INIT;
|
|
DIR *dir;
|
|
struct dirent *d;
|
|
char *existing;
|
|
|
|
if ((existing = find_linked_symref(symref, target, NULL)))
|
|
return existing;
|
|
|
|
strbuf_addf(&path, "%s/worktrees", get_git_common_dir());
|
|
dir = opendir(path.buf);
|
|
strbuf_release(&path);
|
|
if (!dir)
|
|
return NULL;
|
|
|
|
while ((d = readdir(dir)) != NULL) {
|
|
if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
|
|
continue;
|
|
existing = find_linked_symref(symref, target, d->d_name);
|
|
if (existing)
|
|
goto done;
|
|
}
|
|
done:
|
|
closedir(dir);
|
|
|
|
return existing;
|
|
}
|