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worktree: add -z option for list subcommand

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Add a -z option to be used in conjunction with --porcelain that gives
NUL-terminated output. As 'worktree list --porcelain' does not quote
worktree paths this enables it to handle worktree paths that contain
newlines.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Phillip Wood
2022-03-31 16:21:28 +00:00
committed by Junio C Hamano
parent dab1b7905d
commit d97eb302ea
3 changed files with 55 additions and 20 deletions
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40
builtin/worktree.c
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@ -575,35 +575,37 @@ static int add(int ac, const char **av, const char *prefix)
return add_worktree(path, branch, &opts);
}
static void show_worktree_porcelain(struct worktree *wt)
static void show_worktree_porcelain(struct worktree *wt, int line_terminator)
{
const char *reason;
printf("worktree %s\n", wt->path);
printf("worktree %s%c", wt->path, line_terminator);
if (wt->is_bare)
printf("bare\n");
printf("bare%c", line_terminator);
else {
printf("HEAD %s\n", oid_to_hex(&wt->head_oid));
printf("HEAD %s%c", oid_to_hex(&wt->head_oid), line_terminator);
if (wt->is_detached)
printf("detached\n");
printf("detached%c", line_terminator);
else if (wt->head_ref)
printf("branch %s\n", wt->head_ref);
printf("branch %s%c", wt->head_ref, line_terminator);
}
reason = worktree_lock_reason(wt);
if (reason && *reason) {
struct strbuf sb = STRBUF_INIT;
quote_c_style(reason, &sb, NULL, 0);
printf("locked %s\n", sb.buf);
strbuf_release(&sb);
} else if (reason)
printf("locked\n");
if (reason) {
fputs("locked", stdout);
if (*reason) {
fputc(' ', stdout);
write_name_quoted(reason, stdout, line_terminator);
} else {
fputc(line_terminator, stdout);
}
}
reason = worktree_prune_reason(wt, expire);
if (reason)
printf("prunable %s\n", reason);
printf("prunable %s%c", reason, line_terminator);
printf("\n");
fputc(line_terminator, stdout);
}
static void show_worktree(struct worktree *wt, int path_maxlen, int abbrev_len)
@ -681,12 +683,15 @@ static void pathsort(struct worktree **wt)
static int list(int ac, const char **av, const char *prefix)
{
int porcelain = 0;
int line_terminator = '\n';
struct option options[] = {
OPT_BOOL(0, "porcelain", &porcelain, N_("machine-readable output")),
OPT__VERBOSE(&verbose, N_("show extended annotations and reasons, if available")),
OPT_EXPIRY_DATE(0, "expire", &expire,
N_("add 'prunable' annotation to worktrees older than <time>")),
OPT_SET_INT('z', NULL, &line_terminator,
N_("terminate records with a NUL character"), '\0'),
OPT_END()
};
@ -696,6 +701,8 @@ static int list(int ac, const char **av, const char *prefix)
usage_with_options(worktree_usage, options);
else if (verbose && porcelain)
die(_("options '%s' and '%s' cannot be used together"), "--verbose", "--porcelain");
else if (!line_terminator && !porcelain)
die(_("the option '%s' requires '%s'"), "-z", "--porcelain");
else {
struct worktree **worktrees = get_worktrees();
int path_maxlen = 0, abbrev = DEFAULT_ABBREV, i;
@ -708,7 +715,8 @@ static int list(int ac, const char **av, const char *prefix)
for (i = 0; worktrees[i]; i++) {
if (porcelain)
show_worktree_porcelain(worktrees[i]);
show_worktree_porcelain(worktrees[i],
line_terminator);
else
show_worktree(worktrees[i], path_maxlen, abbrev);
}