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

   1#include "builtin.h"
   2#include "cache.h"
   3#include "progress.h"
   4#include "parse-options.h"
   5
   6static const char * const prune_packed_usage[] = {
   7        N_("git prune-packed [-n|--dry-run] [-q|--quiet]"),
   8        NULL
   9};
  10
  11static struct progress *progress;
  12
  13static void prune_dir(int i, DIR *dir, struct strbuf *pathname, int opts)
  14{
  15        struct dirent *de;
  16        char hex[40];
  17        int top_len = pathname->len;
  18
  19        sprintf(hex, "%02x", i);
  20        while ((de = readdir(dir)) != NULL) {
  21                unsigned char sha1[20];
  22                if (strlen(de->d_name) != 38)
  23                        continue;
  24                memcpy(hex + 2, de->d_name, 38);
  25                if (get_sha1_hex(hex, sha1))
  26                        continue;
  27                if (!has_sha1_pack(sha1))
  28                        continue;
  29
  30                strbuf_add(pathname, de->d_name, 38);
  31                if (opts & PRUNE_PACKED_DRY_RUN)
  32                        printf("rm -f %s\n", pathname->buf);
  33                else
  34                        unlink_or_warn(pathname->buf);
  35                display_progress(progress, i + 1);
  36                strbuf_setlen(pathname, top_len);
  37        }
  38}
  39
  40void prune_packed_objects(int opts)
  41{
  42        int i;
  43        const char *dir = get_object_directory();
  44        struct strbuf pathname = STRBUF_INIT;
  45        int top_len;
  46
  47        strbuf_addstr(&pathname, dir);
  48        if (opts & PRUNE_PACKED_VERBOSE)
  49                progress = start_progress_delay("Removing duplicate objects",
  50                        256, 95, 2);
  51
  52        if (pathname.len && pathname.buf[pathname.len - 1] != '/')
  53                strbuf_addch(&pathname, '/');
  54
  55        top_len = pathname.len;
  56        for (i = 0; i < 256; i++) {
  57                DIR *d;
  58
  59                display_progress(progress, i + 1);
  60                strbuf_setlen(&pathname, top_len);
  61                strbuf_addf(&pathname, "%02x/", i);
  62                d = opendir(pathname.buf);
  63                if (!d)
  64                        continue;
  65                prune_dir(i, d, &pathname, opts);
  66                closedir(d);
  67                strbuf_setlen(&pathname, top_len + 2);
  68                rmdir(pathname.buf);
  69        }
  70        stop_progress(&progress);
  71}
  72
  73int cmd_prune_packed(int argc, const char **argv, const char *prefix)
  74{
  75        int opts = isatty(2) ? PRUNE_PACKED_VERBOSE : 0;
  76        const struct option prune_packed_options[] = {
  77                OPT_BIT('n', "dry-run", &opts, N_("dry run"),
  78                        PRUNE_PACKED_DRY_RUN),
  79                OPT_NEGBIT('q', "quiet", &opts, N_("be quiet"),
  80                           PRUNE_PACKED_VERBOSE),
  81                OPT_END()
  82        };
  83
  84        argc = parse_options(argc, argv, prefix, prune_packed_options,
  85                             prune_packed_usage, 0);
  86
  87        prune_packed_objects(opts);
  88        return 0;
  89}