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
  10static const char builtin_rm_usage[] =
  11"git-rm [-n] [-v] [-f] <filepattern>...";
  12
  13static struct {
  14        int nr, alloc;
  15        const char **name;
  16} list;
  17
  18static void add_list(const char *name)
  19{
  20        if (list.nr >= list.alloc) {
  21                list.alloc = alloc_nr(list.alloc);
  22                list.name = xrealloc(list.name, list.alloc * sizeof(const char *));
  23        }
  24        list.name[list.nr++] = name;
  25}
  26
  27static int remove_file(const char *name)
  28{
  29        int ret;
  30        char *slash;
  31
  32        ret = unlink(name);
  33        if (!ret && (slash = strrchr(name, '/'))) {
  34                char *n = strdup(name);
  35                do {
  36                        n[slash - name] = 0;
  37                        name = n;
  38                } while (!rmdir(name) && (slash = strrchr(name, '/')));
  39        }
  40        return ret;
  41}
  42
  43static struct cache_file cache_file;
  44
  45int cmd_rm(int argc, const char **argv, char **envp)
  46{
  47        int i, newfd;
  48        int verbose = 0, show_only = 0, force = 0;
  49        const char *prefix = setup_git_directory();
  50        const char **pathspec;
  51        char *seen;
  52
  53        git_config(git_default_config);
  54
  55        newfd = hold_index_file_for_update(&cache_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                die(builtin_rm_usage);
  84        }
  85        pathspec = get_pathspec(prefix, argv + i);
  86
  87        seen = NULL;
  88        if (pathspec) {
  89                for (i = 0; pathspec[i] ; i++)
  90                        /* nothing */;
  91                seen = xmalloc(i);
  92                memset(seen, 0, i);
  93        }
  94
  95        for (i = 0; i < active_nr; i++) {
  96                struct cache_entry *ce = active_cache[i];
  97                if (!match_pathspec(pathspec, ce->name, ce_namelen(ce), 0, seen))
  98                        continue;
  99                add_list(ce->name);
 100        }
 101
 102        if (pathspec) {
 103                const char *match;
 104                for (i = 0; (match = pathspec[i]) != NULL ; i++) {
 105                        if (*match && !seen[i])
 106                                die("pathspec '%s' did not match any files", match);
 107                }
 108        }
 109
 110        /*
 111         * First remove the names from the index: we won't commit
 112         * the index unless all of them succeed
 113         */
 114        for (i = 0; i < list.nr; i++) {
 115                const char *path = list.name[i];
 116                printf("rm '%s'\n", path);
 117
 118                if (remove_file_from_cache(path))
 119                        die("git rm: unable to remove %s", path);
 120        }
 121
 122        /*
 123         * Then, if we used "-f", remove the filenames from the
 124         * workspace. If we fail to remove the first one, we
 125         * abort the "git rm" (but once we've successfully removed
 126         * any file at all, we'll go ahead and commit to it all:
 127         * by then we've already committed ourself and can't fail
 128         * in the middle)
 129         */
 130        if (force) {
 131                int removed = 0;
 132                for (i = 0; i < list.nr; i++) {
 133                        const char *path = list.name[i];
 134                        if (!remove_file(path)) {
 135                                removed = 1;
 136                                continue;
 137                        }
 138                        if (!removed)
 139                                die("git rm: %s: %s", path, strerror(errno));
 140                }
 141        }
 142
 143        if (active_cache_changed) {
 144                if (write_cache(newfd, active_cache, active_nr) ||
 145                    commit_index_file(&cache_file))
 146                        die("Unable to write new index file");
 147        }
 148
 149        return 0;
 150}