strbuf_read_file enhancement, and use it.

diff --git a/builtin-gc.c b/builtin-gc.c
index 3b1f8c2f3e6d352b43c671a409898c43cf1119ec..939748261041049f31d62935ec08f062bdfa6e79 100644 (file)
--- a/builtin-gc.c
+++ b/builtin-gc.c
@@ -10,18 +10,21 @@
  * Copyright (c) 2006 Shawn O. Pearce
  */
 
+#include "builtin.h"
 #include "cache.h"
 #include "run-command.h"
 
 #define FAILED_RUN "failed to run %s"
 
-static const char builtin_gc_usage[] = "git-gc [--prune]";
+static const char builtin_gc_usage[] = "git-gc [--prune] [--aggressive]";
 
-static int pack_refs = -1;
+static int pack_refs = 1;
+static int aggressive_window = -1;
 
-static const char *argv_pack_refs[] = {"pack-refs", "--prune", NULL};
+#define MAX_ADD 10
+static const char *argv_pack_refs[] = {"pack-refs", "--all", "--prune", NULL};
 static const char *argv_reflog[] = {"reflog", "expire", "--all", NULL};
-static const char *argv_repack[] = {"repack", "-a", "-d", "-l", NULL};
+static const char *argv_repack[MAX_ADD] = {"repack", "-a", "-d", "-l", NULL};
 static const char *argv_prune[] = {"prune", NULL};
 static const char *argv_rerere[] = {"rerere", "gc", NULL};
 
@@ -34,13 +37,31 @@ static int gc_config(const char *var, const char *value)
                        pack_refs = git_config_bool(var, value);
                return 0;
        }
+       if (!strcmp(var, "gc.aggressivewindow")) {
+               aggressive_window = git_config_int(var, value);
+               return 0;
+       }
        return git_default_config(var, value);
 }
 
+static void append_option(const char **cmd, const char *opt, int max_length)
+{
+       int i;
+
+       for (i = 0; cmd[i]; i++)
+               ;
+
+       if (i + 2 >= max_length)
+               die("Too many options specified");
+       cmd[i++] = opt;
+       cmd[i] = NULL;
+}
+
 int cmd_gc(int argc, const char **argv, const char *prefix)
 {
        int i;
        int prune = 0;
+       char buf[80];
 
        git_config(gc_config);
 
@@ -53,6 +74,14 @@ int cmd_gc(int argc, const char **argv, const char *prefix)
                        prune = 1;
                        continue;
                }
+               if (!strcmp(arg, "--aggressive")) {
+                       append_option(argv_repack, "-f", MAX_ADD);
+                       if (aggressive_window > 0) {
+                               sprintf(buf, "--window=%d", aggressive_window);
+                               append_option(argv_repack, buf, MAX_ADD);
+                       }
+                       continue;
+               }
                /* perhaps other parameters later... */
                break;
        }