Andrew's git - gitweb.git/blob

   1/*
   2 * GIT - The information manager from hell
   3 *
   4 * Copyright (C) Linus Torvalds, 2005
   5 */
   6#include "cache.h"
   7
   8#define MTIME_CHANGED   0x0001
   9#define CTIME_CHANGED   0x0002
  10#define OWNER_CHANGED   0x0004
  11#define MODE_CHANGED    0x0008
  12#define INODE_CHANGED   0x0010
  13#define DATA_CHANGED    0x0020
  14
  15static int match_stat(struct cache_entry *ce, struct stat *st)
  16{
  17        unsigned int changed = 0;
  18
  19        if (ce->mtime.sec  != (unsigned int)st->st_mtim.tv_sec ||
  20            ce->mtime.nsec != (unsigned int)st->st_mtim.tv_nsec)
  21                changed |= MTIME_CHANGED;
  22        if (ce->ctime.sec  != (unsigned int)st->st_ctim.tv_sec ||
  23            ce->ctime.nsec != (unsigned int)st->st_ctim.tv_nsec)
  24                changed |= CTIME_CHANGED;
  25        if (ce->st_uid != (unsigned int)st->st_uid ||
  26            ce->st_gid != (unsigned int)st->st_gid)
  27                changed |= OWNER_CHANGED;
  28        if (ce->st_mode != (unsigned int)st->st_mode)
  29                changed |= MODE_CHANGED;
  30        if (ce->st_dev != (unsigned int)st->st_dev ||
  31            ce->st_ino != (unsigned int)st->st_ino)
  32                changed |= INODE_CHANGED;
  33        if (ce->st_size != (unsigned int)st->st_size)
  34                changed |= DATA_CHANGED;
  35        return changed;
  36}
  37
  38static void show_differences(struct cache_entry *ce, struct stat *cur,
  39        void *old_contents, unsigned long long old_size)
  40{
  41        static char cmd[1000];
  42        FILE *f;
  43
  44        snprintf(cmd, sizeof(cmd), "diff -u - %s", ce->name);
  45        f = popen(cmd, "w");
  46        fwrite(old_contents, old_size, 1, f);
  47        pclose(f);
  48}
  49
  50int main(int argc, char **argv)
  51{
  52        int entries = read_cache();
  53        int i;
  54
  55        if (entries < 0) {
  56                perror("read_cache");
  57                exit(1);
  58        }
  59        for (i = 0; i < entries; i++) {
  60                struct stat st;
  61                struct cache_entry *ce = active_cache[i];
  62                int n, changed;
  63                unsigned long size;
  64                char type[20];
  65                void *new;
  66
  67                if (stat(ce->name, &st) < 0) {
  68                        printf("%s: %s\n", ce->name, strerror(errno));
  69                        continue;
  70                }
  71                changed = match_stat(ce, &st);
  72                if (!changed) {
  73                        printf("%s: ok\n", ce->name);
  74                        continue;
  75                }
  76                printf("%.*s:  ", ce->namelen, ce->name);
  77                for (n = 0; n < 20; n++)
  78                        printf("%02x", ce->sha1[n]);
  79                printf("\n");
  80                new = read_sha1_file(ce->sha1, type, &size);
  81                show_differences(ce, &st, new, size);
  82                free(new);
  83        }
  84        return 0;
  85}