Merge branch 'rt/completion-tag'
[gitweb.git] / builtin / rev-parse.c
index c4b768ffda4cb91dbe01012ccb8eb2475435a77e..35d3c43ed656bf28b78501426f4502c0dff1e7b0 100644 (file)
@@ -9,6 +9,9 @@
 #include "quote.h"
 #include "builtin.h"
 #include "parse-options.h"
+#include "diff.h"
+#include "revision.h"
+#include "split-index.h"
 
 #define DO_REVS                1
 #define DO_NOREV       2
@@ -30,6 +33,9 @@ static int abbrev_ref;
 static int abbrev_ref_strict;
 static int output_sq;
 
+static int stuck_long;
+static struct string_list *ref_excludes;
+
 /*
  * Some arguments are relevant "revision" arguments,
  * others are about output format or other details.
@@ -145,6 +151,7 @@ static void show_rev(int type, const unsigned char *sha1, const char *name)
                                error("refname '%s' is ambiguous", name);
                                break;
                        }
+                       free(full);
                } else {
                        show_with_type(type, name);
                }
@@ -185,6 +192,8 @@ static int show_default(void)
 
 static int show_reference(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
 {
+       if (ref_excluded(ref_excludes, refname))
+               return 0;
        show_rev(NORMAL, sha1, refname);
        return 0;
 }
@@ -324,12 +333,15 @@ static int parseopt_dump(const struct option *o, const char *arg, int unset)
        struct strbuf *parsed = o->value;
        if (unset)
                strbuf_addf(parsed, " --no-%s", o->long_name);
-       else if (o->short_name)
+       else if (o->short_name && (o->long_name == NULL || !stuck_long))
                strbuf_addf(parsed, " -%c", o->short_name);
        else
                strbuf_addf(parsed, " --%s", o->long_name);
        if (arg) {
-               strbuf_addch(parsed, ' ');
+               if (!stuck_long)
+                       strbuf_addch(parsed, ' ');
+               else if (o->long_name)
+                       strbuf_addch(parsed, '=');
                sq_quote_buf(parsed, arg);
        }
        return 0;
@@ -355,6 +367,8 @@ static int cmd_parseopt(int argc, const char **argv, const char *prefix)
                OPT_BOOL(0, "stop-at-non-option", &stop_at_non_option,
                                        N_("stop parsing after the "
                                           "first non-option argument")),
+               OPT_BOOL(0, "stuck-long", &stuck_long,
+                                       N_("output in stuck long form")),
                OPT_END(),
        };
 
@@ -383,9 +397,10 @@ static int cmd_parseopt(int argc, const char **argv, const char *prefix)
                usage[unb++] = strbuf_detach(&sb, NULL);
        }
 
-       /* parse: (<short>|<short>,<long>|<long>)[=?]? SP+ <help> */
+       /* parse: (<short>|<short>,<long>|<long>)[*=?!]*<arghint>? SP+ <help> */
        while (strbuf_getline(&sb, stdin, '\n') != EOF) {
                const char *s;
+               const char *end;
                struct option *o;
 
                if (!sb.len)
@@ -407,6 +422,16 @@ static int cmd_parseopt(int argc, const char **argv, const char *prefix)
                o->value = &parsed;
                o->flags = PARSE_OPT_NOARG;
                o->callback = &parseopt_dump;
+
+               /* Possible argument name hint */
+               end = s;
+               while (s > sb.buf && strchr("*=?!", s[-1]) == NULL)
+                       --s;
+               if (s != sb.buf && s != end)
+                       o->argh = xmemdupz(s, end - s);
+               if (s == sb.buf)
+                       s = end;
+
                while (s > sb.buf && strchr("*=?!", s[-1])) {
                        switch (*--s) {
                        case '=':
@@ -483,7 +508,9 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
        int has_dashdash = 0;
        int output_prefix = 0;
        unsigned char sha1[20];
+       unsigned int flags = 0;
        const char *name = NULL;
+       struct object_context unused;
 
        if (argc > 1 && !strcmp("--parseopt", argv[1]))
                return cmd_parseopt(argc - 1, argv + 1, prefix);
@@ -520,7 +547,7 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
                        }
                        continue;
                }
-               if (!prefixcmp(arg, "-n")) {
+               if (starts_with(arg, "-n")) {
                        if ((filter & DO_FLAGS) && (filter & DO_REVS))
                                show(arg);
                        continue;
@@ -535,15 +562,17 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
                                continue;
                        }
                        if (!strcmp(arg, "--default")) {
-                               def = argv[i+1];
-                               i++;
+                               def = argv[++i];
+                               if (!def)
+                                       die("--default requires an argument");
                                continue;
                        }
                        if (!strcmp(arg, "--prefix")) {
-                               prefix = argv[i+1];
+                               prefix = argv[++i];
+                               if (!prefix)
+                                       die("--prefix requires an argument");
                                startup_info->prefix = prefix;
                                output_prefix = 1;
-                               i++;
                                continue;
                        }
                        if (!strcmp(arg, "--revs-only")) {
@@ -569,10 +598,11 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
                        }
                        if (!strcmp(arg, "--quiet") || !strcmp(arg, "-q")) {
                                quiet = 1;
+                               flags |= GET_SHA1_QUIETLY;
                                continue;
                        }
                        if (!strcmp(arg, "--short") ||
-                           !prefixcmp(arg, "--short=")) {
+                           starts_with(arg, "--short=")) {
                                filter &= ~(DO_FLAGS|DO_NOREV);
                                verify = 1;
                                abbrev = DEFAULT_ABBREV;
@@ -600,7 +630,7 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
                                symbolic = SHOW_SYMBOLIC_FULL;
                                continue;
                        }
-                       if (!prefixcmp(arg, "--abbrev-ref") &&
+                       if (starts_with(arg, "--abbrev-ref") &&
                            (!arg[12] || arg[12] == '=')) {
                                abbrev_ref = 1;
                                abbrev_ref_strict = warn_ambiguous_refs;
@@ -618,7 +648,7 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
                                for_each_ref(show_reference, NULL);
                                continue;
                        }
-                       if (!prefixcmp(arg, "--disambiguate=")) {
+                       if (starts_with(arg, "--disambiguate=")) {
                                for_each_abbrev(arg + 15, show_abbrev, NULL);
                                continue;
                        }
@@ -627,35 +657,46 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
                                for_each_ref_in("refs/bisect/good", anti_reference, NULL);
                                continue;
                        }
-                       if (!prefixcmp(arg, "--branches=")) {
+                       if (starts_with(arg, "--branches=")) {
                                for_each_glob_ref_in(show_reference, arg + 11,
                                        "refs/heads/", NULL);
+                               clear_ref_exclusion(&ref_excludes);
                                continue;
                        }
                        if (!strcmp(arg, "--branches")) {
                                for_each_branch_ref(show_reference, NULL);
+                               clear_ref_exclusion(&ref_excludes);
                                continue;
                        }
-                       if (!prefixcmp(arg, "--tags=")) {
+                       if (starts_with(arg, "--tags=")) {
                                for_each_glob_ref_in(show_reference, arg + 7,
                                        "refs/tags/", NULL);
+                               clear_ref_exclusion(&ref_excludes);
                                continue;
                        }
                        if (!strcmp(arg, "--tags")) {
                                for_each_tag_ref(show_reference, NULL);
+                               clear_ref_exclusion(&ref_excludes);
                                continue;
                        }
-                       if (!prefixcmp(arg, "--glob=")) {
+                       if (starts_with(arg, "--glob=")) {
                                for_each_glob_ref(show_reference, arg + 7, NULL);
+                               clear_ref_exclusion(&ref_excludes);
                                continue;
                        }
-                       if (!prefixcmp(arg, "--remotes=")) {
+                       if (starts_with(arg, "--remotes=")) {
                                for_each_glob_ref_in(show_reference, arg + 10,
                                        "refs/remotes/", NULL);
+                               clear_ref_exclusion(&ref_excludes);
                                continue;
                        }
                        if (!strcmp(arg, "--remotes")) {
                                for_each_remote_ref(show_reference, NULL);
+                               clear_ref_exclusion(&ref_excludes);
+                               continue;
+                       }
+                       if (starts_with(arg, "--exclude=")) {
+                               add_ref_exclusion(&ref_excludes, arg + 10);
                                continue;
                        }
                        if (!strcmp(arg, "--local-env-vars")) {
@@ -698,7 +739,7 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
                        }
                        if (!strcmp(arg, "--git-dir")) {
                                const char *gitdir = getenv(GIT_DIR_ENVIRONMENT);
-                               static char cwd[PATH_MAX];
+                               char *cwd;
                                int len;
                                if (gitdir) {
                                        puts(gitdir);
@@ -708,16 +749,19 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
                                        puts(".git");
                                        continue;
                                }
-                               if (!getcwd(cwd, PATH_MAX))
-                                       die_errno("unable to get current working directory");
+                               cwd = xgetcwd();
                                len = strlen(cwd);
                                printf("%s%s.git\n", cwd, len && cwd[len-1] != '/' ? "/" : "");
+                               free(cwd);
                                continue;
                        }
                        if (!strcmp(arg, "--resolve-git-dir")) {
-                               const char *gitdir = resolve_gitdir(argv[i+1]);
+                               const char *gitdir = argv[++i];
+                               if (!gitdir)
+                                       die("--resolve-git-dir requires an argument");
+                               gitdir = resolve_gitdir(gitdir);
                                if (!gitdir)
-                                       die("not a gitdir '%s'", argv[i+1]);
+                                       die("not a gitdir '%s'", argv[i]);
                                puts(gitdir);
                                continue;
                        }
@@ -736,19 +780,28 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
                                                : "false");
                                continue;
                        }
-                       if (!prefixcmp(arg, "--since=")) {
+                       if (!strcmp(arg, "--shared-index-path")) {
+                               if (read_cache() < 0)
+                                       die(_("Could not read the index"));
+                               if (the_index.split_index) {
+                                       const unsigned char *sha1 = the_index.split_index->base_sha1;
+                                       puts(git_path("sharedindex.%s", sha1_to_hex(sha1)));
+                               }
+                               continue;
+                       }
+                       if (starts_with(arg, "--since=")) {
                                show_datestring("--max-age=", arg+8);
                                continue;
                        }
-                       if (!prefixcmp(arg, "--after=")) {
+                       if (starts_with(arg, "--after=")) {
                                show_datestring("--max-age=", arg+8);
                                continue;
                        }
-                       if (!prefixcmp(arg, "--before=")) {
+                       if (starts_with(arg, "--before=")) {
                                show_datestring("--min-age=", arg+9);
                                continue;
                        }
-                       if (!prefixcmp(arg, "--until=")) {
+                       if (starts_with(arg, "--until=")) {
                                show_datestring("--min-age=", arg+8);
                                continue;
                        }
@@ -768,7 +821,7 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
                        name++;
                        type = REVERSED;
                }
-               if (!get_sha1(name, sha1)) {
+               if (!get_sha1_with_context(name, flags, sha1, &unused)) {
                        if (verify)
                                revs_count++;
                        else