Andrew's git - gitweb.git/blob

   1/*
   2 * "git rm" builtin command
   3 *
   4 * Copyright (C) Linus Torvalds 2006
   5 */
   6#include "cache.h"
   7#include "builtin.h"
   8#include "dir.h"
   9#include "cache-tree.h"
  10
  11static const char builtin_rm_usage[] =
  12"git-rm [-n] [-v] [-f] <filepattern>...";
  13
  14static struct {
  15        int nr, alloc;
  16        const char **name;
  17} list;
  18
  19static void add_list(const char *name)
  20{
  21        if (list.nr >= list.alloc) {
  22                list.alloc = alloc_nr(list.alloc);
  23                list.name = xrealloc(list.name, list.alloc * sizeof(const char *));
  24        }
  25        list.name[list.nr++] = name;
  26}
  27
  28static int remove_file(const char *name)
  29{
  30        int ret;
  31        char *slash;
  32
  33        ret = unlink(name);
  34        if (!ret && (slash = strrchr(name, '/'))) {
  35                char *n = strdup(name);
  36                do {
  37                        n[slash - name] = 0;
  38                        name = n;
  39                } while (!rmdir(name) && (slash = strrchr(name, '/')));
  40        }
  41        return ret;
  42}
  43
  44static struct lock_file lock_file;
  45
  46int cmd_rm(int argc, const char **argv, const char *prefix)
  47{
  48        int i, newfd;
  49        int verbose = 0, show_only = 0, force = 0;
  50        const char **pathspec;
  51        char *seen;
  52
  53        git_config(git_default_config);
  54
  55        newfd = hold_lock_file_for_update(&lock_file, get_index_file());
  56        if (newfd < 0)
  57                die("unable to create new index file");
  58
  59        if (read_cache() < 0)
  60                die("index file corrupt");
  61
  62        for (i = 1 ; i < argc ; i++) {
  63                const char *arg = argv[i];
  64
  65                if (*arg != '-')
  66                        break;
  67                if (!strcmp(arg, "--")) {
  68                        i++;
  69                        break;
  70                }
  71                if (!strcmp(arg, "-n")) {
  72                        show_only = 1;
  73                        continue;
  74                }
  75                if (!strcmp(arg, "-v")) {
  76                        verbose = 1;
  77                        continue;
  78                }
  79                if (!strcmp(arg, "-f")) {
  80                        force = 1;
  81                        continue;
  82                }
  83                usage(builtin_rm_usage);
  84        }
  85        if (argc <= i)
  86                usage(builtin_rm_usage);
  87
  88        pathspec = get_pathspec(prefix, argv + i);
  89        seen = NULL;
  90        for (i = 0; pathspec[i] ; i++)
  91                /* nothing */;
  92        seen = xcalloc(i, 1);
  93
  94        for (i = 0; i < active_nr; i++) {
  95                struct cache_entry *ce = active_cache[i];
  96                if (!match_pathspec(pathspec, ce->name, ce_namelen(ce), 0, seen))
  97                        continue;
  98                add_list(ce->name);
  99        }
 100
 101        if (pathspec) {
 102                const char *match;
 103                for (i = 0; (match = pathspec[i]) != NULL ; i++) {
 104                        if (*match && !seen[i])
 105                                die("pathspec '%s' did not match any files", match);
 106                }
 107        }
 108
 109        /*
 110         * First remove the names from the index: we won't commit
 111         * the index unless all of them succeed
 112         */
 113        for (i = 0; i < list.nr; i++) {
 114                const char *path = list.name[i];
 115                printf("rm '%s'\n", path);
 116
 117                if (remove_file_from_cache(path))
 118                        die("git-rm: unable to remove %s", path);
 119                cache_tree_invalidate_path(active_cache_tree, path);
 120        }
 121
 122        if (show_only)
 123                return 0;
 124
 125        /*
 126         * Then, if we used "-f", remove the filenames from the
 127         * workspace. If we fail to remove the first one, we
 128         * abort the "git rm" (but once we've successfully removed
 129         * any file at all, we'll go ahead and commit to it all:
 130         * by then we've already committed ourselves and can't fail
 131         * in the middle)
 132         */
 133        if (force) {
 134                int removed = 0;
 135                for (i = 0; i < list.nr; i++) {
 136                        const char *path = list.name[i];
 137                        if (!remove_file(path)) {
 138                                removed = 1;
 139                                continue;
 140                        }
 141                        if (!removed)
 142                                die("git-rm: %s: %s", path, strerror(errno));
 143                }
 144        }
 145
 146        if (active_cache_changed) {
 147                if (write_cache(newfd, active_cache, active_nr) ||
 148                    close(newfd) || commit_lock_file(&lock_file))
 149                        die("Unable to write new index file");
 150        }
 151
 152        return 0;
 153}