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Merge branch 'es/worktree-forced-ops-fix'

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Fix a bug in which the same path could be registered under multiple
worktree entries if the path was missing (for instance, was removed
manually).  Also, as a convenience, expand the number of cases in
which --force is applicable.

* es/worktree-forced-ops-fix:
  doc-diff: force worktree add
  worktree: delete .git/worktrees if empty after 'remove'
  worktree: teach 'remove' to override lock when --force given twice
  worktree: teach 'move' to override lock when --force given twice
  worktree: teach 'add' to respect --force for registered but missing path
  worktree: disallow adding same path multiple times
  worktree: prepare for more checks of whether path can become worktree
  worktree: generalize delete_git_dir() to reduce code duplication
  worktree: move delete_git_dir() earlier in file for upcoming new callers
  worktree: don't die() in library function find_worktree()
This commit is contained in:
Junio C Hamano
2018-09-17 13:53:59 -07:00
parent 2af0b1c600 684e742249
commit 1c515bf7e2
6 changed files with 155 additions and 40 deletions
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113
builtin/worktree.c
View File

@ -47,6 +47,26 @@ static int git_worktree_config(const char *var, const char *value, void *cb)
return git_default_config(var, value, cb);
}
static int delete_git_dir(const char *id)
{
struct strbuf sb = STRBUF_INIT;
int ret;
strbuf_addstr(&sb, git_common_path("worktrees/%s", id));
ret = remove_dir_recursively(&sb, 0);
if (ret < 0 && errno == ENOTDIR)
ret = unlink(sb.buf);
if (ret)
error_errno(_("failed to delete '%s'"), sb.buf);
strbuf_release(&sb);
return ret;
}
static void delete_worktrees_dir_if_empty(void)
{
rmdir(git_path("worktrees")); /* ignore failed removal */
}
static int prune_worktree(const char *id, struct strbuf *reason)
{
struct stat st;
@ -116,10 +136,8 @@ static int prune_worktree(const char *id, struct strbuf *reason)
static void prune_worktrees(void)
{
struct strbuf reason = STRBUF_INIT;
struct strbuf path = STRBUF_INIT;
DIR *dir = opendir(git_path("worktrees"));
struct dirent *d;
int ret;
if (!dir)
return;
while ((d = readdir(dir)) != NULL) {
@ -132,18 +150,12 @@ static void prune_worktrees(void)
printf("%s\n", reason.buf);
if (show_only)
continue;
git_path_buf(&path, "worktrees/%s", d->d_name);
ret = remove_dir_recursively(&path, 0);
if (ret < 0 && errno == ENOTDIR)
ret = unlink(path.buf);
if (ret)
error_errno(_("failed to remove '%s'"), path.buf);
delete_git_dir(d->d_name);
}
closedir(dir);
if (!show_only)
rmdir(git_path("worktrees"));
delete_worktrees_dir_if_empty();
strbuf_release(&reason);
strbuf_release(&path);
}
static int prune(int ac, const char **av, const char *prefix)
@ -212,6 +224,43 @@ static const char *worktree_basename(const char *path, int *olen)
return name;
}
static void validate_worktree_add(const char *path, const struct add_opts *opts)
{
struct worktree **worktrees;
struct worktree *wt;
int locked;
if (file_exists(path) && !is_empty_dir(path))
die(_("'%s' already exists"), path);
worktrees = get_worktrees(0);
/*
* find_worktree()'s suffix matching may undesirably find the main
* rather than a linked worktree (for instance, when the basenames
* of the main worktree and the one being created are the same).
* We're only interested in linked worktrees, so skip the main
* worktree with +1.
*/
wt = find_worktree(worktrees + 1, NULL, path);
if (!wt)
goto done;
locked = !!is_worktree_locked(wt);
if ((!locked && opts->force) || (locked && opts->force > 1)) {
if (delete_git_dir(wt->id))
die(_("unable to re-add worktree '%s'"), path);
goto done;
}
if (locked)
die(_("'%s' is a missing but locked worktree;\nuse 'add -f -f' to override, or 'unlock' and 'prune' or 'remove' to clear"), path);
else
die(_("'%s' is a missing but already registered worktree;\nuse 'add -f' to override, or 'prune' or 'remove' to clear"), path);
done:
free_worktrees(worktrees);
}
static int add_worktree(const char *path, const char *refname,
const struct add_opts *opts)
{
@ -226,8 +275,7 @@ static int add_worktree(const char *path, const char *refname,
struct commit *commit = NULL;
int is_branch = 0;
if (file_exists(path) && !is_empty_dir(path))
die(_("'%s' already exists"), path);
validate_worktree_add(path, opts);
/* is 'refname' a branch or commit? */
if (!opts->detach && !strbuf_check_branch_ref(&symref, refname) &&
@ -697,13 +745,17 @@ static void validate_no_submodules(const struct worktree *wt)
static int move_worktree(int ac, const char **av, const char *prefix)
{
int force = 0;
struct option options[] = {
OPT__FORCE(&force,
N_("force move even if worktree is dirty or locked"),
PARSE_OPT_NOCOMPLETE),
OPT_END()
};
struct worktree **worktrees, *wt;
struct strbuf dst = STRBUF_INIT;
struct strbuf errmsg = STRBUF_INIT;
const char *reason;
const char *reason = NULL;
char *path;
ac = parse_options(ac, av, prefix, options, worktree_usage, 0);
@ -734,12 +786,13 @@ static int move_worktree(int ac, const char **av, const char *prefix)
validate_no_submodules(wt);
reason = is_worktree_locked(wt);
if (force < 2)
reason = is_worktree_locked(wt);
if (reason) {
if (*reason)
die(_("cannot move a locked working tree, lock reason: %s"),
die(_("cannot move a locked working tree, lock reason: %s\nuse 'move -f -f' to override or unlock first"),
reason);
die(_("cannot move a locked working tree"));
die(_("cannot move a locked working tree;\nuse 'move -f -f' to override or unlock first"));
}
if (validate_worktree(wt, &errmsg, 0))
die(_("validation failed, cannot move working tree: %s"),
@ -822,32 +875,18 @@ static int delete_git_work_tree(struct worktree *wt)
return ret;
}
static int delete_git_dir(struct worktree *wt)
{
struct strbuf sb = STRBUF_INIT;
int ret = 0;
strbuf_addstr(&sb, git_common_path("worktrees/%s", wt->id));
if (remove_dir_recursively(&sb, 0)) {
error_errno(_("failed to delete '%s'"), sb.buf);
ret = -1;
}
strbuf_release(&sb);
return ret;
}
static int remove_worktree(int ac, const char **av, const char *prefix)
{
int force = 0;
struct option options[] = {
OPT__FORCE(&force,
N_("force removing even if the worktree is dirty"),
N_("force removal even if worktree is dirty or locked"),
PARSE_OPT_NOCOMPLETE),
OPT_END()
};
struct worktree **worktrees, *wt;
struct strbuf errmsg = STRBUF_INIT;
const char *reason;
const char *reason = NULL;
int ret = 0;
ac = parse_options(ac, av, prefix, options, worktree_usage, 0);
@ -860,12 +899,13 @@ static int remove_worktree(int ac, const char **av, const char *prefix)
die(_("'%s' is not a working tree"), av[0]);
if (is_main_worktree(wt))
die(_("'%s' is a main working tree"), av[0]);
reason = is_worktree_locked(wt);
if (force < 2)
reason = is_worktree_locked(wt);
if (reason) {
if (*reason)
die(_("cannot remove a locked working tree, lock reason: %s"),
die(_("cannot remove a locked working tree, lock reason: %s\nuse 'remove -f -f' to override or unlock first"),
reason);
die(_("cannot remove a locked working tree"));
die(_("cannot remove a locked working tree;\nuse 'remove -f -f' to override or unlock first"));
}
if (validate_worktree(wt, &errmsg, WT_VALIDATE_WORKTREE_MISSING_OK))
die(_("validation failed, cannot remove working tree: %s"),
@ -882,7 +922,8 @@ static int remove_worktree(int ac, const char **av, const char *prefix)
* continue on even if ret is non-zero, there's no going back
* from here.
*/
ret |= delete_git_dir(wt);
ret |= delete_git_dir(wt->id);
delete_worktrees_dir_if_empty();
free_worktrees(worktrees);
return ret;