Andrew's git - gitweb.git/blob - builtin-prune-packed.c

   1#include "builtin.h"
   2#include "cache.h"
   3
   4static const char prune_packed_usage[] =
   5"git-prune-packed [-n]";
   6
   7static int dryrun;
   8
   9static void prune_dir(int i, DIR *dir, char *pathname, int len)
  10{
  11        struct dirent *de;
  12        char hex[40];
  13
  14        sprintf(hex, "%02x", i);
  15        while ((de = readdir(dir)) != NULL) {
  16                unsigned char sha1[20];
  17                if (strlen(de->d_name) != 38)
  18                        continue;
  19                memcpy(hex+2, de->d_name, 38);
  20                if (get_sha1_hex(hex, sha1))
  21                        continue;
  22                if (!has_sha1_pack(sha1, NULL))
  23                        continue;
  24                memcpy(pathname + len, de->d_name, 38);
  25                if (dryrun)
  26                        printf("rm -f %s\n", pathname);
  27                else if (unlink(pathname) < 0)
  28                        error("unable to unlink %s", pathname);
  29        }
  30        pathname[len] = 0;
  31        rmdir(pathname);
  32}
  33
  34static void prune_packed_objects(void)
  35{
  36        int i;
  37        static char pathname[PATH_MAX];
  38        const char *dir = get_object_directory();
  39        int len = strlen(dir);
  40
  41        if (len > PATH_MAX - 42)
  42                die("impossible object directory");
  43        memcpy(pathname, dir, len);
  44        if (len && pathname[len-1] != '/')
  45                pathname[len++] = '/';
  46        for (i = 0; i < 256; i++) {
  47                DIR *d;
  48
  49                sprintf(pathname + len, "%02x/", i);
  50                d = opendir(pathname);
  51                if (!d)
  52                        continue;
  53                prune_dir(i, d, pathname, len + 3);
  54                closedir(d);
  55        }
  56}
  57
  58int cmd_prune_packed(int argc, const char **argv, const char *prefix)
  59{
  60        int i;
  61
  62        for (i = 1; i < argc; i++) {
  63                const char *arg = argv[i];
  64
  65                if (*arg == '-') {
  66                        if (!strcmp(arg, "-n"))
  67                                dryrun = 1;
  68                        else
  69                                usage(prune_packed_usage);
  70                        continue;
  71                }
  72                /* Handle arguments here .. */
  73                usage(prune_packed_usage);
  74        }
  75        sync();
  76        prune_packed_objects();
  77        return 0;
  78}