real_path_internal(): add comment explaining use of cwd

diff --git a/revision.c b/revision.c
index cbcae1086b346e2b956db7ef9b2729385eaa2ec9..ae12e11fb74dcc51bfddd2acf94601b2bfba7811 100644 (file)
--- a/revision.c
+++ b/revision.c
@@ -1312,7 +1312,7 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
            !strcmp(arg, "--no-walk") || !strcmp(arg, "--do-walk") ||
            !strcmp(arg, "--bisect") || !prefixcmp(arg, "--glob=") ||
            !prefixcmp(arg, "--branches=") || !prefixcmp(arg, "--tags=") ||
-           !prefixcmp(arg, "--remotes="))
+           !prefixcmp(arg, "--remotes=") || !prefixcmp(arg, "--no-walk="))
        {
                unkv[(*unkc)++] = arg;
                return 1;
@@ -1598,6 +1598,8 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
        } else if ((argcount = parse_long_opt("grep", argv, &optarg))) {
                add_message_grep(revs, optarg);
                return argcount;
+       } else if (!strcmp(arg, "--grep-debug")) {
+               revs->grep_filter.debug = 1;
        } else if (!strcmp(arg, "--extended-regexp") || !strcmp(arg, "-E")) {
                revs->grep_filter.regflags |= REG_EXTENDED;
        } else if (!strcmp(arg, "--regexp-ignore-case") || !strcmp(arg, "-i")) {
@@ -1707,7 +1709,18 @@ static int handle_revision_pseudo_opt(const char *submodule,
        } else if (!strcmp(arg, "--not")) {
                *flags ^= UNINTERESTING;
        } else if (!strcmp(arg, "--no-walk")) {
-               revs->no_walk = 1;
+               revs->no_walk = REVISION_WALK_NO_WALK_SORTED;
+       } else if (!prefixcmp(arg, "--no-walk=")) {
+               /*
+                * Detached form ("--no-walk X" as opposed to "--no-walk=X")
+                * not allowed, since the argument is optional.
+                */
+               if (!strcmp(arg + 10, "sorted"))
+                       revs->no_walk = REVISION_WALK_NO_WALK_SORTED;
+               else if (!strcmp(arg + 10, "unsorted"))
+                       revs->no_walk = REVISION_WALK_NO_WALK_UNSORTED;
+               else
+                       return error("invalid argument to --no-walk");
        } else if (!strcmp(arg, "--do-walk")) {
                revs->no_walk = 0;
        } else {
@@ -2129,10 +2142,11 @@ int prepare_revision_walk(struct rev_info *revs)
                }
                e++;
        }
-       commit_list_sort_by_date(&revs->commits);
        if (!revs->leak_pending)
                free(list);
 
+       if (revs->no_walk != REVISION_WALK_NO_WALK_UNSORTED)
+               commit_list_sort_by_date(&revs->commits);
        if (revs->no_walk)
                return 0;
        if (revs->limited)