Andrew's git - gitweb.git/blob

9f62e9700164e07bbbfdb7af7d1d3ba8f74ef7c7
   1/*
   2 * This merges the file listing in the directory cache index
   3 * with the actual working directory list, and shows different
   4 * combinations of the two.
   5 *
   6 * Copyright (C) Linus Torvalds, 2005
   7 */
   8#include <dirent.h>
   9#include <sys/param.h>
  10
  11#include "cache.h"
  12
  13static int show_deleted = 0;
  14static int show_cached = 0;
  15static int show_others = 0;
  16static int show_ignored = 0;
  17
  18static const char **dir;
  19static int nr_dir;
  20static int dir_alloc;
  21
  22static void add_name(const char *pathname, int len)
  23{
  24        char *name;
  25
  26        if (cache_name_pos(pathname, len) >= 0)
  27                return;
  28
  29        if (nr_dir == dir_alloc) {
  30                dir_alloc = alloc_nr(dir_alloc);
  31                dir = realloc(dir, dir_alloc*sizeof(char *));
  32        }
  33        name = malloc(len + 1);
  34        memcpy(name, pathname, len + 1);
  35        dir[nr_dir++] = name;
  36}
  37
  38/*
  39 * Read a directory tree. We currently ignore anything but
  40 * directories and regular files. That's because git doesn't
  41 * handle them at all yet. Maybe that will change some day.
  42 *
  43 * Also, we currently ignore all names starting with a dot.
  44 * That likely will not change. 
  45 */
  46static void read_directory(const char *path, const char *base, int baselen)
  47{
  48        DIR *dir = opendir(path);
  49
  50        if (dir) {
  51                struct dirent *de;
  52                char fullname[MAXPATHLEN + 1];
  53                memcpy(fullname, base, baselen);
  54
  55                while ((de = readdir(dir)) != NULL) {
  56                        int len;
  57
  58                        if (de->d_name[0] == '.')
  59                                continue;
  60                        len = strlen(de->d_name);
  61                        memcpy(fullname + baselen, de->d_name, len+1);
  62
  63                        switch (de->d_type) {
  64                        struct stat st;
  65                        default:
  66                                continue;
  67                        case DT_UNKNOWN:
  68                                if (lstat(fullname, &st))
  69                                        continue;
  70                                if (S_ISREG(st.st_mode))
  71                                        break;
  72                                if (!S_ISDIR(st.st_mode))
  73                                        continue;
  74                                /* fallthrough */
  75                        case DT_DIR:
  76                                memcpy(fullname + baselen + len, "/", 2);
  77                                read_directory(fullname, fullname, baselen + len + 1);
  78                                continue;
  79                        case DT_REG:
  80                                break;
  81                        }
  82                        add_name(fullname, baselen + len);
  83                }
  84                closedir(dir);
  85        }
  86}
  87
  88static int cmp_name(const void *p1, const void *p2)
  89{
  90        const char *n1 = *(const char **)p1;
  91        const char *n2 = *(const char **)p2;
  92        int l1 = strlen(n1), l2 = strlen(n2);
  93
  94        return cache_name_compare(n1, l1, n2, l2);
  95}
  96
  97static void show_files(void)
  98{
  99        int i;
 100
 101        /* For cached/deleted files we don't need to even do the readdir */
 102        if (show_others | show_ignored) {
 103                read_directory(".", "", 0);
 104                qsort(dir, nr_dir, sizeof(char *), cmp_name);
 105        }
 106        if (show_others) {
 107                for (i = 0; i < nr_dir; i++)
 108                        printf("%s\n", dir[i]);
 109        }
 110        if (show_cached) {
 111                for (i = 0; i < active_nr; i++) {
 112                        struct cache_entry *ce = active_cache[i];
 113                        printf("%s\n", ce->name);
 114                }
 115        }
 116        if (show_deleted) {
 117                for (i = 0; i < active_nr; i++) {
 118                        struct cache_entry *ce = active_cache[i];
 119                        struct stat st;
 120                        if (!stat(ce->name, &st))
 121                                continue;
 122                        printf("%s\n", ce->name);
 123                }
 124        }
 125        if (show_ignored) {
 126                /* We don't have any "ignore" list yet */
 127        }
 128}
 129
 130int main(int argc, char **argv)
 131{
 132        int i;
 133
 134        for (i = 1; i < argc; i++) {
 135                char *arg = argv[i];
 136
 137                if (!strcmp(arg, "--cached")) {
 138                        show_cached = 1;
 139                        continue;
 140                }
 141                if (!strcmp(arg, "--deleted")) {
 142                        show_deleted = 1;
 143                        continue;
 144                }
 145                if (!strcmp(arg, "--others")) {
 146                        show_others = 1;
 147                        continue;
 148                }
 149                if (!strcmp(arg, "--ignored")) {
 150                        show_ignored = 1;
 151                        continue;
 152                }
 153
 154                usage("show-files (--[cached|deleted|others|ignored])*");
 155        }
 156
 157        /* With no flags, we default to showing the cached files */
 158        if (!(show_cached | show_deleted | show_others | show_ignored))
 159                show_cached = 1;
 160
 161        read_cache();
 162        show_files();
 163        return 0;
 164}