git-p4: Unset P4DIFF environment variable when using 'p4 -du diff'

diff --git a/builtin-gc.c b/builtin-gc.c
index 799c263936d19ef8e66b21f83a370c4fcfe9e5f5..045bf0e487a73e98d8d78990fcf85cc25ad5f96d 100644 (file)
--- a/builtin-gc.c
+++ b/builtin-gc.c
@@ -37,7 +37,7 @@ static const char *argv_rerere[] = {"rerere", "gc", NULL};
 static int gc_config(const char *var, const char *value)
 {
        if (!strcmp(var, "gc.packrefs")) {
-               if (!strcmp(value, "notbare"))
+               if (value && !strcmp(value, "notbare"))
                        pack_refs = -1;
                else
                        pack_refs = git_config_bool(var, value);
@@ -172,12 +172,14 @@ int cmd_gc(int argc, const char **argv, const char *prefix)
        int prune = 0;
        int aggressive = 0;
        int auto_gc = 0;
+       int quiet = 0;
        char buf[80];
 
        struct option builtin_gc_options[] = {
                OPT_BOOLEAN(0, "prune", &prune, "prune unreferenced objects"),
                OPT_BOOLEAN(0, "aggressive", &aggressive, "be more thorough (increased runtime)"),
                OPT_BOOLEAN(0, "auto", &auto_gc, "enable auto-gc mode"),
+               OPT_BOOLEAN('q', "quiet", &quiet, "suppress progress reports"),
                OPT_END()
        };
 
@@ -197,6 +199,8 @@ int cmd_gc(int argc, const char **argv, const char *prefix)
                        append_option(argv_repack, buf, MAX_ADD);
                }
        }
+       if (quiet)
+               append_option(argv_repack, "-q", MAX_ADD);
 
        if (auto_gc) {
                /*
@@ -205,7 +209,7 @@ int cmd_gc(int argc, const char **argv, const char *prefix)
                prune = 0;
                if (!need_to_gc())
                        return 0;
-               fprintf(stderr, "Packing your repository for optimum "
+               fprintf(stderr, "Auto packing your repository for optimum "
                        "performance. You may also\n"
                        "run \"git gc\" manually. See "
                        "\"git help gc\" for more information.\n");