git add -u: die on unmatched pathspec

If a pathspec is supplied to 'git add -u' and no path matches
the pattern, fail with an approriate error message and exit code.

Tested-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin-add.c b/builtin-add.c
index cb6e5906fb76f2460f212c54b557e5ae0ce23579..016987c22420a0389f11920b519b9439528bc7ab 100644 (file)
--- a/builtin-add.c
+++ b/builtin-add.c
@@ -41,7 +41,19 @@ static void fill_pathspec_matches(const char **pathspec, char *seen, int specs)
        }
 }
 
-static void prune_directory(struct dir_struct *dir, const char **pathspec, int prefix)
+static char *find_used_pathspec(const char **pathspec)
+{
+       char *seen;
+       int i;
+
+       for (i = 0; pathspec[i];  i++)
+               ; /* just counting */
+       seen = xcalloc(i, 1);
+       fill_pathspec_matches(pathspec, seen, i);
+       return seen;
+}
+
+static char *prune_directory(struct dir_struct *dir, const char **pathspec, int prefix)
 {
        char *seen;
        int i, specs;
@@ -61,13 +73,7 @@ static void prune_directory(struct dir_struct *dir, const char **pathspec, int p
        }
        dir->nr = dst - dir->entries;
        fill_pathspec_matches(pathspec, seen, specs);
-
-       for (i = 0; i < specs; i++) {
-               if (!seen[i] && pathspec[i][0] && !file_exists(pathspec[i]))
-                       die("pathspec '%s' did not match any files",
-                                       pathspec[i]);
-       }
-        free(seen);
+       return seen;
 }
 
 static void treat_gitlinks(const char **pathspec)
@@ -283,6 +289,7 @@ int cmd_add(int argc, const char **argv, const char *prefix)
        int flags;
        int add_new_files;
        int require_pathspec;
+       char *seen = NULL;
 
        git_config(add_config, NULL);
 
@@ -342,7 +349,7 @@ int cmd_add(int argc, const char **argv, const char *prefix)
                /* This picks up the paths that are not tracked */
                baselen = fill_directory(&dir, pathspec);
                if (pathspec)
-                       prune_directory(&dir, pathspec, baselen);
+                       seen = prune_directory(&dir, pathspec, baselen);
        }
 
        if (refresh_only) {
@@ -350,6 +357,19 @@ int cmd_add(int argc, const char **argv, const char *prefix)
                goto finish;
        }
 
+       if (pathspec) {
+               int i;
+               if (!seen)
+                       seen = find_used_pathspec(pathspec);
+               for (i = 0; pathspec[i]; i++) {
+                       if (!seen[i] && pathspec[i][0]
+                           && !file_exists(pathspec[i]))
+                               die("pathspec '%s' did not match any files",
+                                   pathspec[i]);
+               }
+               free(seen);
+       }
+
        exit_status |= add_files_to_cache(prefix, pathspec, flags);
 
        if (add_new_files)