This is a non-functional change, we use a new int "shown_fields" to mark
which columns to output, and `parse_shown_fields()` to calculate the
value of "shown_fields".
This has the advantage of making the show_tree logic simpler and more
readable, as well as making it easier to extend new options (for example,
if we want to add a "--object-only" option, we just need to add a similar
"if (shown_fields == FIELD_OBJECT_NAME)" short-circuit logic in
"show_tree()").
Signed-off-by: Teng Long <dyroneteng@xxxxxxxxx>
---
builtin/ls-tree.c | 126 ++++++++++++++++++++++++++++++++--------------
1 file changed, 89 insertions(+), 37 deletions(-)
diff --git a/builtin/ls-tree.c b/builtin/ls-tree.c
index 32147e75e6..8baab7c83e 100644
--- a/builtin/ls-tree.c
+++ b/builtin/ls-tree.c
@@ -16,21 +16,53 @@
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)
+#define LS_NAME_ONLY (1 << 3)
+#define LS_SHOW_SIZE (1 << 4)
static int abbrev;
static int ls_options;
static struct pathspec pathspec;
static int chomp_prefix;
static const char *ls_tree_prefix;
+static unsigned int shown_fields;
+#define FIELD_PATH_NAME 1
+#define FIELD_SIZE (1 << 1)
+#define FIELD_OBJECT_NAME (1 << 2)
+#define FIELD_TYPE (1 << 3)
+#define FIELD_MODE (1 << 4)
+#define FIELD_DEFAULT 29 /* 11101 size is not shown to output by default */
+#define FIELD_LONG_DEFAULT (FIELD_DEFAULT | FIELD_SIZE)
static const char * const ls_tree_usage[] = {
N_("git ls-tree [<options>] <tree-ish> [<path>...]"),
NULL
};
+enum {
+ MODE_UNSPECIFIED = 0,
+ MODE_NAME_ONLY,
+ MODE_LONG,
+};
+
+static int cmdmode = MODE_UNSPECIFIED;
+
+static int parse_shown_fields(void)
+{
+ if (cmdmode == MODE_NAME_ONLY) {
+ shown_fields = FIELD_PATH_NAME;
+ return 0;
+ }
+
+ if (!ls_options || (ls_options & LS_RECURSIVE)
+ || (ls_options & LS_SHOW_TREES)
+ || (ls_options & LS_TREE_ONLY))
+ shown_fields = FIELD_DEFAULT;
+ if (cmdmode == MODE_LONG)
+ shown_fields = FIELD_LONG_DEFAULT;
+ return 1;
+}
+
static int show_recursive(const char *base, size_t baselen, const char *pathname)
{
int i;
@@ -61,6 +93,39 @@ static int show_recursive(const char *base, size_t baselen, const char *pathname
return 0;
}
+static int show_default(const struct object_id *oid, enum object_type type,
+ const char *pathname, unsigned mode,
+ struct strbuf *base)
+{
+ size_t baselen = base->len;
+
+ if (shown_fields & FIELD_SIZE) {
+ char size_text[24];
+ if (type == OBJ_BLOB) {
+ 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_name(type),
+ find_unique_abbrev(oid, abbrev), size_text);
+ } else {
+ printf("%06o %s %s\t", mode, type_name(type),
+ find_unique_abbrev(oid, abbrev));
+ }
+ baselen = base->len;
+ strbuf_addstr(base, pathname);
+ write_name_quoted_relative(base->buf,
+ chomp_prefix ? ls_tree_prefix : NULL, stdout,
+ line_termination);
+ strbuf_setlen(base, baselen);
+ return 1;
+}
+
static int show_tree(const struct object_id *oid, struct strbuf *base,
const char *pathname, unsigned mode, void *context)
{
@@ -75,34 +140,19 @@ static int show_tree(const struct object_id *oid, struct strbuf *base,
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 (type == OBJ_BLOB) {
- 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_name(type),
- find_unique_abbrev(oid, abbrev),
- size_text);
- } else {
- printf("%06o %s %s\t", mode, type_name(type),
- find_unique_abbrev(oid, abbrev));
- }
+ if (shown_fields == FIELD_PATH_NAME) {
+ baselen = base->len;
+ strbuf_addstr(base, pathname);
+ write_name_quoted_relative(base->buf,
+ chomp_prefix ? ls_tree_prefix : NULL,
+ stdout, line_termination);
+ strbuf_setlen(base, baselen);
+ return recurse;
}
- baselen = base->len;
- strbuf_addstr(base, pathname);
- write_name_quoted_relative(base->buf,
- chomp_prefix ? ls_tree_prefix : NULL,
- stdout, line_termination);
- strbuf_setlen(base, baselen);
+
+ if (shown_fields >= FIELD_DEFAULT)
+ show_default(oid, type, pathname, mode, base);
+
return recurse;
}
@@ -120,12 +170,12 @@ 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_CMDMODE('l', "long", &ls_options, N_("include object size"),
- LS_SHOW_SIZE),
- OPT_CMDMODE(0, "name-only", &ls_options, N_("list only filenames"),
- LS_NAME_ONLY),
- OPT_CMDMODE(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_ONLY),
OPT_SET_INT(0, "full-name", &chomp_prefix,
N_("use full path names"), 0),
OPT_BOOL(0, "full-tree", &full_tree,
@@ -156,6 +206,8 @@ int cmd_ls_tree(int argc, const char **argv, const char *prefix)
if (get_oid(argv[0], &oid))
die("Not a valid object name %s", argv[0]);
+ parse_shown_fields();
+
/*
* show_recursive() rolls its own matching code and is
* generally ignorant of 'struct pathspec'. The magic mask
--
2.34.1.403.gb35f2687cf.dirty
