git: run in a directory given with -C option

diff --git a/git.c b/git.c
index 2025f77d0181ba646e3c793a693e5d71348b966c..a2d99a7d82104f894edc8f2a473c03f0a69b1f24 100644 (file)
--- a/git.c
+++ b/git.c
@@ -7,7 +7,7 @@
 #include "commit.h"
 
 const char git_usage_string[] =
-       "git [--version] [--help] [-c name=value]\n"
+       "git [--version] [--help] [-C <path>] [-c name=value]\n"
        "           [--exec-path[=<path>]] [--html-path] [--man-path] [--info-path]\n"
        "           [-p|--paginate|--no-pager] [--no-replace-objects] [--bare]\n"
        "           [--git-dir=<path>] [--work-tree=<path>] [--namespace=<name>]\n"
@@ -153,6 +153,17 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
                        set_alternate_shallow_file((*argv)[0]);
                        if (envchanged)
                                *envchanged = 1;
+               } else if (!strcmp(cmd, "-C")) {
+                       if (*argc < 2) {
+                               fprintf(stderr, "No directory given for -C.\n" );
+                               usage(git_usage_string);
+                       }
+                       if (chdir((*argv)[1]))
+                               die_errno("Cannot change to '%s'", (*argv)[1]);
+                       if (envchanged)
+                               *envchanged = 1;
+                       (*argv)++;
+                       (*argc)--;
                } else {
                        fprintf(stderr, "Unknown option: %s\n", cmd);
                        usage(git_usage_string);