real_path_internal(): add comment explaining use of cwd

diff --git a/revision.h b/revision.h
index 863f4f64543bd9f9e830e7c9567def23e906c7d9..a95bd0b3f3026068046d469a74d1a2d85e50e314 100644 (file)
--- a/revision.h
+++ b/revision.h
@@ -41,6 +41,10 @@ struct rev_cmdline_info {
        } *rev;
 };
 
+#define REVISION_WALK_WALK 0
+#define REVISION_WALK_NO_WALK_SORTED 1
+#define REVISION_WALK_NO_WALK_UNSORTED 2
+
 struct rev_info {
        /* Starting list */
        struct commit_list *commits;
@@ -62,7 +66,7 @@ struct rev_info {
        /* Traversal flags */
        unsigned int    dense:1,
                        prune:1,
-                       no_walk:1,
+                       no_walk:2,
                        show_all:1,
                        remove_empty_trees:1,
                        simplify_history:1,
@@ -184,6 +188,7 @@ struct setup_revision_opt {
        void (*tweak)(struct rev_info *, struct setup_revision_opt *);
        const char *submodule;
        int assume_dashdash;
+       unsigned revarg_opt;
 };
 
 extern void init_revisions(struct rev_info *revs, const char *prefix);
@@ -191,7 +196,9 @@ extern int setup_revisions(int argc, const char **argv, struct rev_info *revs, s
 extern void parse_revision_opt(struct rev_info *revs, struct parse_opt_ctx_t *ctx,
                                 const struct option *options,
                                 const char * const usagestr[]);
-extern int handle_revision_arg(const char *arg, struct rev_info *revs,int flags,int cant_be_filename);
+#define REVARG_CANNOT_BE_FILENAME 01
+#define REVARG_COMMITTISH 02
+extern int handle_revision_arg(const char *arg, struct rev_info *revs, int flags, unsigned revarg_opt);
 
 extern void reset_revision_walk(void);
 extern int prepare_revision_walk(struct rev_info *revs);