decorate: clean up and document API

diff --git a/builtin/mailinfo.c b/builtin/mailinfo.c
index e3b62f2fc744d340de5e3d9efad12b5de93cd55c..cfb667a594c8452b8f4259bb3da1976965906f95 100644 (file)
--- a/builtin/mailinfo.c
+++ b/builtin/mailinfo.c
@@ -11,13 +11,6 @@
 static const char mailinfo_usage[] =
        "git mailinfo [-k | -b] [-m | --message-id] [-u | --encoding=<encoding> | -n] [--scissors | --no-scissors] <msg> <patch> < mail >info";
 
-static char *prefix_copy(const char *prefix, const char *filename)
-{
-       if (!prefix || is_absolute_path(filename))
-               return xstrdup(filename);
-       return xstrdup(prefix_filename(prefix, strlen(prefix), filename));
-}
-
 int cmd_mailinfo(int argc, const char **argv, const char *prefix)
 {
        const char *def_charset;
@@ -60,8 +53,8 @@ int cmd_mailinfo(int argc, const char **argv, const char *prefix)
        mi.input = stdin;
        mi.output = stdout;
 
-       msgfile = prefix_copy(prefix, argv[1]);
-       patchfile = prefix_copy(prefix, argv[2]);
+       msgfile = prefix_filename(prefix, argv[1]);
+       patchfile = prefix_filename(prefix, argv[2]);
 
        status = !!mailinfo(&mi, msgfile, patchfile);
        clear_mailinfo(&mi);