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-rw-r--r--builtin-rev-parse.c165
1 files changed, 135 insertions, 30 deletions
diff --git a/builtin-rev-parse.c b/builtin-rev-parse.c
index 0e59707323..37d0233521 100644
--- a/builtin-rev-parse.c
+++ b/builtin-rev-parse.c
@@ -26,10 +26,10 @@ static int show_type = NORMAL;
#define SHOW_SYMBOLIC_FULL 2
static int symbolic;
static int abbrev;
+static int abbrev_ref;
+static int abbrev_ref_strict;
static int output_sq;
-static int revs_count;
-
/*
* Some arguments are relevant "revision" arguments,
* others are about output format or other details.
@@ -96,18 +96,23 @@ static void show(const char *arg)
puts(arg);
}
+/* Like show(), but with a negation prefix according to type */
+static void show_with_type(int type, const char *arg)
+{
+ if (type != show_type)
+ putchar('^');
+ show(arg);
+}
+
/* Output a revision, only if filter allows it */
static void show_rev(int type, const unsigned char *sha1, const char *name)
{
if (!(filter & DO_REVS))
return;
def = NULL;
- revs_count++;
- if (type != show_type)
- putchar('^');
- if (symbolic && name) {
- if (symbolic == SHOW_SYMBOLIC_FULL) {
+ if ((symbolic || abbrev_ref) && name) {
+ if (symbolic == SHOW_SYMBOLIC_FULL || abbrev_ref) {
unsigned char discard[20];
char *full;
@@ -122,20 +127,23 @@ static void show_rev(int type, const unsigned char *sha1, const char *name)
*/
break;
case 1: /* happy */
- show(full);
+ if (abbrev_ref)
+ full = shorten_unambiguous_ref(full,
+ abbrev_ref_strict);
+ show_with_type(type, full);
break;
default: /* ambiguous */
error("refname '%s' is ambiguous", name);
break;
}
} else {
- show(name);
+ show_with_type(type, name);
}
}
else if (abbrev)
- show(find_unique_abbrev(sha1, abbrev));
+ show_with_type(type, find_unique_abbrev(sha1, abbrev));
else
- show(sha1_to_hex(sha1));
+ show_with_type(type, sha1_to_hex(sha1));
}
/* Output a flag, only if filter allows it. */
@@ -150,7 +158,7 @@ static int show_flag(const char *arg)
return 0;
}
-static void show_default(void)
+static int show_default(void)
{
const char *s = def;
@@ -160,9 +168,10 @@ static void show_default(void)
def = NULL;
if (!get_sha1(s, sha1)) {
show_rev(NORMAL, sha1, s);
- return;
+ return 1;
}
}
+ return 0;
}
static int show_reference(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
@@ -171,6 +180,12 @@ static int show_reference(const char *refname, const unsigned char *sha1, int fl
return 0;
}
+static int anti_reference(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
+{
+ show_rev(REVERSED, sha1, refname);
+ return 0;
+}
+
static void show_datestring(const char *flag, const char *datestr)
{
static char buffer[100];
@@ -237,6 +252,36 @@ static int try_difference(const char *arg)
return 0;
}
+static int try_parent_shorthands(const char *arg)
+{
+ char *dotdot;
+ unsigned char sha1[20];
+ struct commit *commit;
+ struct commit_list *parents;
+ int parents_only;
+
+ if ((dotdot = strstr(arg, "^!")))
+ parents_only = 0;
+ else if ((dotdot = strstr(arg, "^@")))
+ parents_only = 1;
+
+ if (!dotdot || dotdot[2])
+ return 0;
+
+ *dotdot = 0;
+ if (get_sha1(arg, sha1))
+ return 0;
+
+ if (!parents_only)
+ show_rev(NORMAL, sha1, arg);
+ commit = lookup_commit_reference(sha1);
+ for (parents = commit->parents; parents; parents = parents->next)
+ show_rev(parents_only ? NORMAL : REVERSED,
+ parents->item->object.sha1, arg);
+
+ return 1;
+}
+
static int parseopt_dump(const struct option *o, const char *arg, int unset)
{
struct strbuf *parsed = o->value;
@@ -262,30 +307,31 @@ static const char *skipspaces(const char *s)
static int cmd_parseopt(int argc, const char **argv, const char *prefix)
{
- static int keep_dashdash = 0;
+ static int keep_dashdash = 0, stop_at_non_option = 0;
static char const * const parseopt_usage[] = {
- "git-rev-parse --parseopt [options] -- [<args>...]",
+ "git rev-parse --parseopt [options] -- [<args>...]",
NULL
};
static struct option parseopt_opts[] = {
OPT_BOOLEAN(0, "keep-dashdash", &keep_dashdash,
"keep the `--` passed as an arg"),
+ OPT_BOOLEAN(0, "stop-at-non-option", &stop_at_non_option,
+ "stop parsing after the "
+ "first non-option argument"),
OPT_END(),
};
- struct strbuf sb, parsed;
+ struct strbuf sb = STRBUF_INIT, parsed = STRBUF_INIT;
const char **usage = NULL;
struct option *opts = NULL;
int onb = 0, osz = 0, unb = 0, usz = 0;
- strbuf_init(&parsed, 0);
strbuf_addstr(&parsed, "set --");
- argc = parse_options(argc, argv, parseopt_opts, parseopt_usage,
+ argc = parse_options(argc, argv, prefix, parseopt_opts, parseopt_usage,
PARSE_OPT_KEEP_DASHDASH);
if (argc < 1 || strcmp(argv[0], "--"))
usage_with_options(parseopt_usage, parseopt_opts);
- strbuf_init(&sb, 0);
/* get the usage up to the first line with a -- on it */
for (;;) {
if (strbuf_getline(&sb, stdin, '\n') == EOF)
@@ -356,8 +402,9 @@ static int cmd_parseopt(int argc, const char **argv, const char *prefix)
/* put an OPT_END() */
ALLOC_GROW(opts, onb + 1, osz);
memset(opts + onb, 0, sizeof(opts[onb]));
- argc = parse_options(argc, argv, opts, usage,
- keep_dashdash ? PARSE_OPT_KEEP_DASHDASH : 0);
+ argc = parse_options(argc, argv, prefix, opts, usage,
+ keep_dashdash ? PARSE_OPT_KEEP_DASHDASH : 0 |
+ stop_at_non_option ? PARSE_OPT_STOP_AT_NON_OPTION : 0);
strbuf_addf(&parsed, " --");
sq_quote_argv(&parsed, argv, 0);
@@ -365,6 +412,18 @@ static int cmd_parseopt(int argc, const char **argv, const char *prefix)
return 0;
}
+static int cmd_sq_quote(int argc, const char **argv)
+{
+ struct strbuf buf = STRBUF_INIT;
+
+ if (argc)
+ sq_quote_argv(&buf, argv, 0);
+ printf("%s\n", buf.buf);
+ strbuf_release(&buf);
+
+ return 0;
+}
+
static void die_no_single_rev(int quiet)
{
if (quiet)
@@ -373,16 +432,30 @@ static void die_no_single_rev(int quiet)
die("Needed a single revision");
}
+static const char builtin_rev_parse_usage[] =
+"git rev-parse --parseopt [options] -- [<args>...]\n"
+" or: git rev-parse --sq-quote [<arg>...]\n"
+" or: git rev-parse [options] [<arg>...]\n"
+"\n"
+"Run \"git rev-parse --parseopt -h\" for more information on the first usage.";
+
int cmd_rev_parse(int argc, const char **argv, const char *prefix)
{
- int i, as_is = 0, verify = 0, quiet = 0;
+ int i, as_is = 0, verify = 0, quiet = 0, revs_count = 0, type = 0;
unsigned char sha1[20];
+ const char *name = NULL;
if (argc > 1 && !strcmp("--parseopt", argv[1]))
return cmd_parseopt(argc - 1, argv + 1, prefix);
+ if (argc > 1 && !strcmp("--sq-quote", argv[1]))
+ return cmd_sq_quote(argc - 2, argv + 2);
+
+ if (argc > 1 && !strcmp("-h", argv[1]))
+ usage(builtin_rev_parse_usage);
+
prefix = setup_git_directory();
- git_config(git_default_config);
+ git_config(git_default_config, NULL);
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
@@ -473,10 +546,29 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
symbolic = SHOW_SYMBOLIC_FULL;
continue;
}
+ if (!prefixcmp(arg, "--abbrev-ref") &&
+ (!arg[12] || arg[12] == '=')) {
+ abbrev_ref = 1;
+ abbrev_ref_strict = warn_ambiguous_refs;
+ if (arg[12] == '=') {
+ if (!strcmp(arg + 13, "strict"))
+ abbrev_ref_strict = 1;
+ else if (!strcmp(arg + 13, "loose"))
+ abbrev_ref_strict = 0;
+ else
+ die("unknown mode for %s", arg);
+ }
+ continue;
+ }
if (!strcmp(arg, "--all")) {
for_each_ref(show_reference, NULL);
continue;
}
+ if (!strcmp(arg, "--bisect")) {
+ for_each_ref_in("refs/bisect/bad", show_reference, NULL);
+ for_each_ref_in("refs/bisect/good", anti_reference, NULL);
+ continue;
+ }
if (!strcmp(arg, "--branches")) {
for_each_branch_ref(show_reference, NULL);
continue;
@@ -525,7 +617,7 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
continue;
}
if (!getcwd(cwd, PATH_MAX))
- die("unable to get current working directory");
+ die_errno("unable to get current working directory");
printf("%s/.git\n", cwd);
continue;
}
@@ -568,12 +660,19 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
/* Not a flag argument */
if (try_difference(arg))
continue;
- if (!get_sha1(arg, sha1)) {
- show_rev(NORMAL, sha1, arg);
+ if (try_parent_shorthands(arg))
continue;
+ name = arg;
+ type = NORMAL;
+ if (*arg == '^') {
+ name++;
+ type = REVERSED;
}
- if (*arg == '^' && !get_sha1(arg+1, sha1)) {
- show_rev(REVERSED, sha1, arg+1);
+ if (!get_sha1(name, sha1)) {
+ if (verify)
+ revs_count++;
+ else
+ show_rev(type, sha1, name);
continue;
}
if (verify)
@@ -583,8 +682,14 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
continue;
verify_filename(prefix, arg);
}
- show_default();
- if (verify && revs_count != 1)
+ if (verify) {
+ if (revs_count == 1) {
+ show_rev(type, sha1, name);
+ return 0;
+ } else if (revs_count == 0 && show_default())
+ return 0;
die_no_single_rev(quiet);
+ } else
+ show_default();
return 0;
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-05 03:43:23 +0000