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-rw-r--r--builtin/ls-tree.c368
1 files changed, 306 insertions, 62 deletions
diff --git a/builtin/ls-tree.c b/builtin/ls-tree.c
index 3a442631c7..5dac9ee5b9 100644
--- a/builtin/ls-tree.c
+++ b/builtin/ls-tree.c
@@ -16,22 +16,102 @@
static int line_termination = '\n';
#define LS_RECURSIVE 1
-#define LS_TREE_ONLY 2
-#define LS_SHOW_TREES 4
-#define LS_NAME_ONLY 8
-#define LS_SHOW_SIZE 16
+#define LS_TREE_ONLY (1 << 1)
+#define LS_SHOW_TREES (1 << 2)
static int abbrev;
static int ls_options;
static struct pathspec pathspec;
static int chomp_prefix;
static const char *ls_tree_prefix;
+static const char *format;
+struct show_tree_data {
+ unsigned mode;
+ enum object_type type;
+ const struct object_id *oid;
+ const char *pathname;
+ struct strbuf *base;
+};
static const char * const ls_tree_usage[] = {
N_("git ls-tree [<options>] <tree-ish> [<path>...]"),
NULL
};
-static int show_recursive(const char *base, int baselen, const char *pathname)
+static enum ls_tree_cmdmode {
+ MODE_DEFAULT = 0,
+ MODE_LONG,
+ MODE_NAME_ONLY,
+ MODE_NAME_STATUS,
+ MODE_OBJECT_ONLY,
+} cmdmode;
+
+static void expand_objectsize(struct strbuf *line, const struct object_id *oid,
+ const enum object_type type, unsigned int padded)
+{
+ if (type == OBJ_BLOB) {
+ unsigned long size;
+ if (oid_object_info(the_repository, oid, &size) < 0)
+ die(_("could not get object info about '%s'"),
+ oid_to_hex(oid));
+ if (padded)
+ strbuf_addf(line, "%7"PRIuMAX, (uintmax_t)size);
+ else
+ strbuf_addf(line, "%"PRIuMAX, (uintmax_t)size);
+ } else if (padded) {
+ strbuf_addf(line, "%7s", "-");
+ } else {
+ strbuf_addstr(line, "-");
+ }
+}
+
+static size_t expand_show_tree(struct strbuf *sb, const char *start,
+ void *context)
+{
+ struct show_tree_data *data = context;
+ const char *end;
+ const char *p;
+ unsigned int errlen;
+ size_t len = strbuf_expand_literal_cb(sb, start, NULL);
+
+ if (len)
+ return len;
+ if (*start != '(')
+ die(_("bad ls-tree format: element '%s' does not start with '('"), start);
+
+ end = strchr(start + 1, ')');
+ if (!end)
+ die(_("bad ls-tree format: element '%s' does not end in ')'"), start);
+
+ len = end - start + 1;
+ if (skip_prefix(start, "(objectmode)", &p)) {
+ strbuf_addf(sb, "%06o", data->mode);
+ } else if (skip_prefix(start, "(objecttype)", &p)) {
+ strbuf_addstr(sb, type_name(data->type));
+ } else if (skip_prefix(start, "(objectsize:padded)", &p)) {
+ expand_objectsize(sb, data->oid, data->type, 1);
+ } else if (skip_prefix(start, "(objectsize)", &p)) {
+ expand_objectsize(sb, data->oid, data->type, 0);
+ } else if (skip_prefix(start, "(objectname)", &p)) {
+ strbuf_add_unique_abbrev(sb, data->oid, abbrev);
+ } else if (skip_prefix(start, "(path)", &p)) {
+ const char *name = data->base->buf;
+ const char *prefix = chomp_prefix ? ls_tree_prefix : NULL;
+ struct strbuf quoted = STRBUF_INIT;
+ struct strbuf sbuf = STRBUF_INIT;
+ strbuf_addstr(data->base, data->pathname);
+ name = relative_path(data->base->buf, prefix, &sbuf);
+ quote_c_style(name, &quoted, NULL, 0);
+ strbuf_addbuf(sb, &quoted);
+ strbuf_release(&sbuf);
+ strbuf_release(&quoted);
+ } else {
+ errlen = (unsigned long)len;
+ die(_("bad ls-tree format: %%%.*s"), errlen, start);
+ }
+ return len;
+}
+
+static int show_recursive(const char *base, size_t baselen, const char *pathname)
{
int i;
@@ -43,7 +123,7 @@ static int show_recursive(const char *base, int baselen, const char *pathname)
for (i = 0; i < pathspec.nr; i++) {
const char *spec = pathspec.items[i].match;
- int len, speclen;
+ size_t len, speclen;
if (strncmp(base, spec, baselen))
continue;
@@ -61,69 +141,197 @@ static int show_recursive(const char *base, int baselen, const char *pathname)
return 0;
}
-static int show_tree(const struct object_id *oid, struct strbuf *base,
- const char *pathname, unsigned mode, void *context)
+static int show_tree_fmt(const struct object_id *oid, struct strbuf *base,
+ const char *pathname, unsigned mode, void *context)
{
- int retval = 0;
- int baselen;
- const char *type = blob_type;
-
- if (S_ISGITLINK(mode)) {
- /*
- * Maybe we want to have some recursive version here?
- *
- * Something similar to this incomplete example:
- *
- if (show_subprojects(base, baselen, pathname))
- retval = READ_TREE_RECURSIVE;
- *
- */
- type = commit_type;
- } else if (S_ISDIR(mode)) {
- if (show_recursive(base->buf, base->len, pathname)) {
- retval = READ_TREE_RECURSIVE;
- if (!(ls_options & LS_SHOW_TREES))
- return retval;
- }
- type = tree_type;
- }
- else if (ls_options & LS_TREE_ONLY)
+ size_t baselen;
+ int recurse = 0;
+ struct strbuf sb = STRBUF_INIT;
+ enum object_type type = object_type(mode);
+
+ struct show_tree_data data = {
+ .mode = mode,
+ .type = type,
+ .oid = oid,
+ .pathname = pathname,
+ .base = base,
+ };
+
+ if (type == OBJ_TREE && show_recursive(base->buf, base->len, pathname))
+ recurse = READ_TREE_RECURSIVE;
+ if (type == OBJ_TREE && recurse && !(ls_options & LS_SHOW_TREES))
+ return recurse;
+ if (type == OBJ_BLOB && (ls_options & LS_TREE_ONLY))
return 0;
- if (!(ls_options & LS_NAME_ONLY)) {
- if (ls_options & LS_SHOW_SIZE) {
- char size_text[24];
- if (!strcmp(type, blob_type)) {
- unsigned long size;
- if (oid_object_info(the_repository, oid, &size) == OBJ_BAD)
- xsnprintf(size_text, sizeof(size_text),
- "BAD");
- else
- xsnprintf(size_text, sizeof(size_text),
- "%"PRIuMAX, (uintmax_t)size);
- } else
- xsnprintf(size_text, sizeof(size_text), "-");
- printf("%06o %s %s %7s\t", mode, type,
- find_unique_abbrev(oid, abbrev),
- size_text);
- } else
- printf("%06o %s %s\t", mode, type,
- find_unique_abbrev(oid, abbrev));
- }
baselen = base->len;
+ strbuf_expand(&sb, format, expand_show_tree, &data);
+ strbuf_addch(&sb, line_termination);
+ fwrite(sb.buf, sb.len, 1, stdout);
+ strbuf_release(&sb);
+ strbuf_setlen(base, baselen);
+ return recurse;
+}
+
+static int show_tree_common(struct show_tree_data *data, int *recurse,
+ const struct object_id *oid, struct strbuf *base,
+ const char *pathname, unsigned mode)
+{
+ enum object_type type = object_type(mode);
+ int ret = -1;
+
+ *recurse = 0;
+ data->mode = mode;
+ data->type = type;
+ data->oid = oid;
+ data->pathname = pathname;
+ data->base = base;
+
+ if (type == OBJ_BLOB) {
+ if (ls_options & LS_TREE_ONLY)
+ ret = 0;
+ } else if (type == OBJ_TREE &&
+ show_recursive(base->buf, base->len, pathname)) {
+ *recurse = READ_TREE_RECURSIVE;
+ if (!(ls_options & LS_SHOW_TREES))
+ ret = *recurse;
+ }
+
+ return ret;
+}
+
+static void show_tree_common_default_long(struct strbuf *base,
+ const char *pathname,
+ const size_t baselen)
+{
+ strbuf_addstr(base, pathname);
+ write_name_quoted_relative(base->buf,
+ chomp_prefix ? ls_tree_prefix : NULL, stdout,
+ line_termination);
+ strbuf_setlen(base, baselen);
+}
+
+static int show_tree_default(const struct object_id *oid, struct strbuf *base,
+ const char *pathname, unsigned mode,
+ void *context)
+{
+ int early;
+ int recurse;
+ struct show_tree_data data = { 0 };
+
+ early = show_tree_common(&data, &recurse, oid, base, pathname, mode);
+ if (early >= 0)
+ return early;
+
+ printf("%06o %s %s\t", data.mode, type_name(data.type),
+ find_unique_abbrev(data.oid, abbrev));
+ show_tree_common_default_long(base, pathname, data.base->len);
+ return recurse;
+}
+
+static int show_tree_long(const struct object_id *oid, struct strbuf *base,
+ const char *pathname, unsigned mode, void *context)
+{
+ int early;
+ int recurse;
+ struct show_tree_data data = { 0 };
+ char size_text[24];
+
+ early = show_tree_common(&data, &recurse, oid, base, pathname, mode);
+ if (early >= 0)
+ return early;
+
+ if (data.type == OBJ_BLOB) {
+ unsigned long size;
+ if (oid_object_info(the_repository, data.oid, &size) == OBJ_BAD)
+ xsnprintf(size_text, sizeof(size_text), "BAD");
+ else
+ xsnprintf(size_text, sizeof(size_text),
+ "%" PRIuMAX, (uintmax_t)size);
+ } else {
+ xsnprintf(size_text, sizeof(size_text), "-");
+ }
+
+ printf("%06o %s %s %7s\t", data.mode, type_name(data.type),
+ find_unique_abbrev(data.oid, abbrev), size_text);
+ show_tree_common_default_long(base, pathname, data.base->len);
+ return 1;
+}
+
+static int show_tree_name_only(const struct object_id *oid, struct strbuf *base,
+ const char *pathname, unsigned mode, void *context)
+{
+ int early;
+ int recurse;
+ const size_t baselen = base->len;
+ struct show_tree_data data = { 0 };
+
+ early = show_tree_common(&data, &recurse, oid, base, pathname, mode);
+ if (early >= 0)
+ return early;
+
strbuf_addstr(base, pathname);
write_name_quoted_relative(base->buf,
chomp_prefix ? ls_tree_prefix : NULL,
stdout, line_termination);
strbuf_setlen(base, baselen);
- return retval;
+ return recurse;
+}
+
+static int show_tree_object(const struct object_id *oid, struct strbuf *base,
+ const char *pathname, unsigned mode, void *context)
+{
+ int early;
+ int recurse;
+ struct show_tree_data data = { 0 };
+
+ early = show_tree_common(&data, &recurse, oid, base, pathname, mode);
+ if (early >= 0)
+ return early;
+
+ printf("%s%c", find_unique_abbrev(oid, abbrev), line_termination);
+ return recurse;
}
+struct ls_tree_cmdmode_to_fmt {
+ enum ls_tree_cmdmode mode;
+ const char *const fmt;
+ read_tree_fn_t fn;
+};
+
+static struct ls_tree_cmdmode_to_fmt ls_tree_cmdmode_format[] = {
+ {
+ .mode = MODE_DEFAULT,
+ .fmt = "%(objectmode) %(objecttype) %(objectname)%x09%(path)",
+ .fn = show_tree_default,
+ },
+ {
+ .mode = MODE_LONG,
+ .fmt = "%(objectmode) %(objecttype) %(objectname) %(objectsize:padded)%x09%(path)",
+ .fn = show_tree_long,
+ },
+ {
+ .mode = MODE_NAME_ONLY, /* And MODE_NAME_STATUS */
+ .fmt = "%(path)",
+ .fn = show_tree_name_only,
+ },
+ {
+ .mode = MODE_OBJECT_ONLY,
+ .fmt = "%(objectname)",
+ .fn = show_tree_object
+ },
+ {
+ /* fallback */
+ .fn = show_tree_default,
+ },
+};
+
int cmd_ls_tree(int argc, const char **argv, const char *prefix)
{
struct object_id oid;
struct tree *tree;
int i, full_tree = 0;
+ read_tree_fn_t fn = NULL;
const struct option ls_tree_options[] = {
OPT_BIT('d', NULL, &ls_options, N_("only show trees"),
LS_TREE_ONLY),
@@ -133,24 +341,30 @@ int cmd_ls_tree(int argc, const char **argv, const char *prefix)
LS_SHOW_TREES),
OPT_SET_INT('z', NULL, &line_termination,
N_("terminate entries with NUL byte"), 0),
- OPT_BIT('l', "long", &ls_options, N_("include object size"),
- LS_SHOW_SIZE),
- OPT_BIT(0, "name-only", &ls_options, N_("list only filenames"),
- LS_NAME_ONLY),
- OPT_BIT(0, "name-status", &ls_options, N_("list only filenames"),
- LS_NAME_ONLY),
+ OPT_CMDMODE('l', "long", &cmdmode, N_("include object size"),
+ MODE_LONG),
+ OPT_CMDMODE(0, "name-only", &cmdmode, N_("list only filenames"),
+ MODE_NAME_ONLY),
+ OPT_CMDMODE(0, "name-status", &cmdmode, N_("list only filenames"),
+ MODE_NAME_STATUS),
+ OPT_CMDMODE(0, "object-only", &cmdmode, N_("list only objects"),
+ MODE_OBJECT_ONLY),
OPT_SET_INT(0, "full-name", &chomp_prefix,
N_("use full path names"), 0),
OPT_BOOL(0, "full-tree", &full_tree,
N_("list entire tree; not just current directory "
"(implies --full-name)")),
+ OPT_STRING_F(0, "format", &format, N_("format"),
+ N_("format to use for the output"),
+ PARSE_OPT_NONEG),
OPT__ABBREV(&abbrev),
OPT_END()
};
+ struct ls_tree_cmdmode_to_fmt *m2f = ls_tree_cmdmode_format;
git_config(git_default_config, NULL);
ls_tree_prefix = prefix;
- if (prefix && *prefix)
+ if (prefix)
chomp_prefix = strlen(prefix);
argc = parse_options(argc, argv, prefix, ls_tree_options,
@@ -159,11 +373,23 @@ int cmd_ls_tree(int argc, const char **argv, const char *prefix)
ls_tree_prefix = prefix = NULL;
chomp_prefix = 0;
}
+ /*
+ * We wanted to detect conflicts between --name-only and
+ * --name-status, but once we're done with that subsequent
+ * code should only need to check the primary name.
+ */
+ if (cmdmode == MODE_NAME_STATUS)
+ cmdmode = MODE_NAME_ONLY;
+
/* -d -r should imply -t, but -d by itself should not have to. */
if ( (LS_TREE_ONLY|LS_RECURSIVE) ==
((LS_TREE_ONLY|LS_RECURSIVE) & ls_options))
ls_options |= LS_SHOW_TREES;
+ if (format && cmdmode)
+ usage_msg_opt(
+ _("--format can't be combined with other format-altering options"),
+ ls_tree_usage, ls_tree_options);
if (argc < 1)
usage_with_options(ls_tree_usage, ls_tree_options);
if (get_oid(argv[0], &oid))
@@ -185,6 +411,24 @@ int cmd_ls_tree(int argc, const char **argv, const char *prefix)
tree = parse_tree_indirect(&oid);
if (!tree)
die("not a tree object");
- return !!read_tree(the_repository, tree,
- &pathspec, show_tree, NULL);
+ /*
+ * The generic show_tree_fmt() is slower than show_tree(), so
+ * take the fast path if possible.
+ */
+ while (m2f) {
+ if (!m2f->fmt) {
+ fn = format ? show_tree_fmt : show_tree_default;
+ } else if (format && !strcmp(format, m2f->fmt)) {
+ cmdmode = m2f->mode;
+ fn = m2f->fn;
+ } else if (!format && cmdmode == m2f->mode) {
+ fn = m2f->fn;
+ } else {
+ m2f++;
+ continue;
+ }
+ break;
+ }
+
+ return !!read_tree(the_repository, tree, &pathspec, fn, NULL);
}