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

   1#include "builtin.h"
   2#include "cache.h"
   3#include "progress.h"
   4
   5static const char prune_packed_usage[] =
   6"git-prune-packed [-n] [-q]";
   7
   8#define DRY_RUN 01
   9#define VERBOSE 02
  10
  11static struct progress *progress;
  12
  13static void prune_dir(int i, DIR *dir, char *pathname, int len, int opts)
  14{
  15        struct dirent *de;
  16        char hex[40];
  17
  18        display_progress(progress, i + 1);
  19
  20        sprintf(hex, "%02x", i);
  21        while ((de = readdir(dir)) != NULL) {
  22                unsigned char sha1[20];
  23                if (strlen(de->d_name) != 38)
  24                        continue;
  25                memcpy(hex+2, de->d_name, 38);
  26                if (get_sha1_hex(hex, sha1))
  27                        continue;
  28                if (!has_sha1_pack(sha1, NULL))
  29                        continue;
  30                memcpy(pathname + len, de->d_name, 38);
  31                if (opts & DRY_RUN)
  32                        printf("rm -f %s\n", pathname);
  33                else if (unlink(pathname) < 0)
  34                        error("unable to unlink %s", pathname);
  35        }
  36        pathname[len] = 0;
  37        rmdir(pathname);
  38}
  39
  40void prune_packed_objects(int opts)
  41{
  42        int i;
  43        static char pathname[PATH_MAX];
  44        const char *dir = get_object_directory();
  45        int len = strlen(dir);
  46
  47        if (opts == VERBOSE)
  48                progress = start_progress_delay("Removing duplicate objects",
  49                        256, 95, 2);
  50
  51        if (len > PATH_MAX - 42)
  52                die("impossible object directory");
  53        memcpy(pathname, dir, len);
  54        if (len && pathname[len-1] != '/')
  55                pathname[len++] = '/';
  56        for (i = 0; i < 256; i++) {
  57                DIR *d;
  58
  59                sprintf(pathname + len, "%02x/", i);
  60                d = opendir(pathname);
  61                if (!d)
  62                        continue;
  63                prune_dir(i, d, pathname, len + 3, opts);
  64                closedir(d);
  65        }
  66        stop_progress(&progress);
  67}
  68
  69int cmd_prune_packed(int argc, const char **argv, const char *prefix)
  70{
  71        int i;
  72        int opts = VERBOSE;
  73
  74        for (i = 1; i < argc; i++) {
  75                const char *arg = argv[i];
  76
  77                if (*arg == '-') {
  78                        if (!strcmp(arg, "-n"))
  79                                opts |= DRY_RUN;
  80                        else if (!strcmp(arg, "-q"))
  81                                opts &= ~VERBOSE;
  82                        else
  83                                usage(prune_packed_usage);
  84                        continue;
  85                }
  86                /* Handle arguments here .. */
  87                usage(prune_packed_usage);
  88        }
  89        sync();
  90        prune_packed_objects(opts);
  91        return 0;
  92}