let pack-objects do the writing of unreachable objects as loose objects
[gitweb.git] / builtin-prune.c
index b5e768421ba548efaf0dd62ca876c15911df55d2..25f9304b829c9074e8a034eba5e34c38794058a4 100644 (file)
@@ -4,8 +4,12 @@
 #include "revision.h"
 #include "builtin.h"
 #include "reachable.h"
+#include "parse-options.h"
 
-static const char prune_usage[] = "git-prune [-n]";
+static const char * const prune_usage[] = {
+       "git-prune [-n] [--expire <time>] [--] [<head>...]",
+       NULL
+};
 static int show_only;
 static unsigned long expire;
 
@@ -83,37 +87,77 @@ static void prune_object_dir(const char *path)
        }
 }
 
-int cmd_prune(int argc, const char **argv, const char *prefix)
+/*
+ * Write errors (particularly out of space) can result in
+ * failed temporary packs (and more rarely indexes and other
+ * files begining with "tmp_") accumulating in the
+ * object directory.
+ */
+static void remove_temporary_files(void)
 {
-       int i;
-       struct rev_info revs;
+       DIR *dir;
+       struct dirent *de;
+       char* dirname=get_object_directory();
 
-       for (i = 1; i < argc; i++) {
-               const char *arg = argv[i];
-               if (!strcmp(arg, "-n")) {
-                       show_only = 1;
-                       continue;
-               }
-               if (!strcmp(arg, "--expire")) {
-                       if (++i < argc) {
-                               expire = approxidate(argv[i]);
+       dir = opendir(dirname);
+       if (!dir) {
+               fprintf(stderr, "Unable to open object directory %s\n",
+                       dirname);
+               return;
+       }
+       while ((de = readdir(dir)) != NULL) {
+               if (!prefixcmp(de->d_name, "tmp_")) {
+                       char name[PATH_MAX];
+                       int c = snprintf(name, PATH_MAX, "%s/%s",
+                                        dirname, de->d_name);
+                       if (c < 0 || c >= PATH_MAX)
                                continue;
+                       if (expire) {
+                               struct stat st;
+                               if (stat(name, &st) != 0 || st.st_mtime >= expire)
+                                       continue;
                        }
+                       printf("Removing stale temporary file %s\n", name);
+                       if (!show_only)
+                               unlink(name);
                }
-               else if (!prefixcmp(arg, "--expire=")) {
-                       expire = approxidate(arg + 9);
-                       continue;
-               }
-               usage(prune_usage);
        }
+       closedir(dir);
+}
+
+int cmd_prune(int argc, const char **argv, const char *prefix)
+{
+       struct rev_info revs;
+       const struct option options[] = {
+               OPT_BOOLEAN('n', NULL, &show_only,
+                           "do not remove, show only"),
+               OPT_DATE(0, "expire", &expire,
+                        "expire objects older than <time>"),
+               OPT_END()
+       };
 
        save_commit_buffer = 0;
        init_revisions(&revs, prefix);
-       mark_reachable_objects(&revs, 1);
 
+       argc = parse_options(argc, argv, options, prune_usage, 0);
+       while (argc--) {
+               unsigned char sha1[20];
+               const char *name = *argv++;
+
+               if (!get_sha1(name, sha1)) {
+                       struct object *object = parse_object(sha1);
+                       if (!object)
+                               die("bad object: %s", name);
+                       add_pending_object(&revs, object, "");
+               }
+               else
+                       die("unrecognized argument: %s", name);
+       }
+       mark_reachable_objects(&revs, 1);
        prune_object_dir(get_object_directory());
 
        sync();
        prune_packed_objects(show_only);
+       remove_temporary_files();
        return 0;
 }