rev-parse: introduce --exclude=<glob> to tame wildcards

diff --git a/builtin/rev-parse.c b/builtin/rev-parse.c
index f267a1d3b57c1f1ab44c83a197f46051f4f13060..f52f8048bb7522792312e036a0ed6e92a48c0880 100644 (file)
--- a/builtin/rev-parse.c
+++ b/builtin/rev-parse.c
@@ -9,6 +9,8 @@
 #include "quote.h"
 #include "builtin.h"
 #include "parse-options.h"
+#include "diff.h"
+#include "revision.h"
 
 #define DO_REVS                1
 #define DO_NOREV       2
@@ -30,6 +32,8 @@ static int abbrev_ref;
 static int abbrev_ref_strict;
 static int output_sq;
 
+static struct string_list *ref_excludes;
+
 /*
  * Some arguments are relevant "revision" arguments,
  * others are about output format or other details.
@@ -185,6 +189,8 @@ 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;
 }
@@ -212,11 +218,17 @@ static void show_datestring(const char *flag, const char *datestr)
        show(buffer);
 }
 
-static int show_file(const char *arg)
+static int show_file(const char *arg, int output_prefix)
 {
        show_default();
        if ((filter & (DO_NONFLAGS|DO_NOREV)) == (DO_NONFLAGS|DO_NOREV)) {
-               show(arg);
+               if (output_prefix) {
+                       const char *prefix = startup_info->prefix;
+                       show(prefix_filename(prefix,
+                                            prefix ? strlen(prefix) : 0,
+                                            arg));
+               } else
+                       show(arg);
                return 1;
        }
        return 0;
@@ -470,6 +482,7 @@ N_("git rev-parse --parseopt [options] -- [<args>...]\n"
 int cmd_rev_parse(int argc, const char **argv, const char *prefix)
 {
        int i, as_is = 0, verify = 0, quiet = 0, revs_count = 0, type = 0;
+       int output_prefix = 0;
        unsigned char sha1[20];
        const char *name = NULL;
 
@@ -503,7 +516,7 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
                const char *arg = argv[i];
 
                if (as_is) {
-                       if (show_file(arg) && as_is < 2)
+                       if (show_file(arg, output_prefix) && as_is < 2)
                                verify_filename(prefix, arg, 0);
                        continue;
                }
@@ -527,7 +540,7 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
                                as_is = 2;
                                /* Pass on the "--" if we show anything but files.. */
                                if (filter & (DO_FLAGS | DO_REVS))
-                                       show_file(arg);
+                                       show_file(arg, 0);
                                continue;
                        }
                        if (!strcmp(arg, "--default")) {
@@ -535,6 +548,13 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
                                i++;
                                continue;
                        }
+                       if (!strcmp(arg, "--prefix")) {
+                               prefix = argv[i+1];
+                               startup_info->prefix = prefix;
+                               output_prefix = 1;
+                               i++;
+                               continue;
+                       }
                        if (!strcmp(arg, "--revs-only")) {
                                filter &= ~DO_NOREV;
                                continue;
@@ -619,32 +639,43 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
                        if (!prefixcmp(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=")) {
                                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=")) {
                                for_each_glob_ref(show_reference, arg + 7, NULL);
+                               clear_ref_exclusion(&ref_excludes);
                                continue;
                        }
                        if (!prefixcmp(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 (!prefixcmp(arg, "--exclude=")) {
+                               add_ref_exclusion(&ref_excludes, arg + 10);
                                continue;
                        }
                        if (!strcmp(arg, "--show-toplevel")) {
@@ -754,7 +785,7 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
                if (verify)
                        die_no_single_rev(quiet);
                as_is = 1;
-               if (!show_file(arg))
+               if (!show_file(arg, output_prefix))
                        continue;
                verify_filename(prefix, arg, 1);
        }