Add a small patch-mode testing library

diff --git a/builtin-rev-parse.c b/builtin-rev-parse.c
index 112d622cda6f74f9752627d9adf3a1cdb04851c3..45bead65451e87a4b564e59fed3518a4de9198e9 100644 (file)
--- a/builtin-rev-parse.c
+++ b/builtin-rev-parse.c
@@ -301,7 +301,7 @@ static const char *skipspaces(const char *s)
 
 static int cmd_parseopt(int argc, const char **argv, const char *prefix)
 {
-       static int keep_dashdash = 0;
+       static int keep_dashdash = 0, stop_at_non_option = 0;
        static char const * const parseopt_usage[] = {
                "git rev-parse --parseopt [options] -- [<args>...]",
                NULL
@@ -309,6 +309,9 @@ static int cmd_parseopt(int argc, const char **argv, const char *prefix)
        static struct option parseopt_opts[] = {
                OPT_BOOLEAN(0, "keep-dashdash", &keep_dashdash,
                                        "keep the `--` passed as an arg"),
+               OPT_BOOLEAN(0, "stop-at-non-option", &stop_at_non_option,
+                                       "stop parsing after the "
+                                       "first non-option argument"),
                OPT_END(),
        };
 
@@ -394,7 +397,8 @@ static int cmd_parseopt(int argc, const char **argv, const char *prefix)
        ALLOC_GROW(opts, onb + 1, osz);
        memset(opts + onb, 0, sizeof(opts[onb]));
        argc = parse_options(argc, argv, prefix, opts, usage,
-                            keep_dashdash ? PARSE_OPT_KEEP_DASHDASH : 0);
+                       keep_dashdash ? PARSE_OPT_KEEP_DASHDASH : 0 |
+                       stop_at_non_option ? PARSE_OPT_STOP_AT_NON_OPTION : 0);
 
        strbuf_addf(&parsed, " --");
        sq_quote_argv(&parsed, argv, 0);
@@ -592,7 +596,7 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
                                        continue;
                                }
                                if (!getcwd(cwd, PATH_MAX))
-                                       die("unable to get current working directory");
+                                       die_errno("unable to get current working directory");
                                printf("%s/.git\n", cwd);
                                continue;
                        }