Make git-rev-list and git-rev-parse argument parsing stricter

If you pass it a filename without the "--" marker to separate it from
revision information and flags, we now require that the file in question
actually exists. This makes mis-typed revision information not be silently
just considered a strange filename.

With the "--" marker, you can continue to pass in filenames that do not
actually exists - useful for querying what happened to a file that you
no longer have in the repository.

[ All scripts should use the "--" format regardless, to make things
  unambiguous. So this change should not affect any existing tools ]

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/rev-list.c b/rev-list.c
index d060966..e00e6fc 100644 (file)
--- a/rev-list.c
+++ b/rev-list.c
@@ -844,8 +844,12 @@ int main(int argc, const char **argv)
                        arg++;
                        limited = 1;
                }
-               if (get_sha1(arg, sha1) < 0)
+               if (get_sha1(arg, sha1) < 0) {
+                       struct stat st;
+                       if (lstat(arg, &st) < 0)
+                               die("'%s': %s", arg, strerror(errno));
                        break;
+               }
                commit = get_commit_reference(arg, sha1, flags);
                handle_one_commit(commit, &list);
        }

diff --git a/rev-parse.c b/rev-parse.c
index 0c951af..7abad35 100644 (file)
--- a/rev-parse.c
+++ b/rev-parse.c
@@ -154,6 +154,7 @@ int main(int argc, char **argv)
        const char *prefix = setup_git_directory();
        
        for (i = 1; i < argc; i++) {
+               struct stat st;
                char *arg = argv[i];
                char *dotdot;
        
@@ -293,6 +294,8 @@ int main(int argc, char **argv)
                }
                if (verify)
                        die("Needed a single revision");
+               if (lstat(arg, &st) < 0)
+                       die("'%s': %s", arg, strerror(errno));
                as_is = 1;
                show_file(arg);
        }