Andrew's git - gitweb.git/blob

   1/*
   2 * "git clean" builtin command
   3 *
   4 * Copyright (C) 2007 Shawn Bohrer
   5 *
   6 * Based on git-clean.sh by Pavel Roskin
   7 */
   8
   9#include "builtin.h"
  10#include "cache.h"
  11#include "dir.h"
  12#include "parse-options.h"
  13
  14static int force = -1; /* unset */
  15
  16static const char *const builtin_clean_usage[] = {
  17        "git-clean [-d] [-f] [-n] [-q] [-x | -X] [--] <paths>...",
  18        NULL
  19};
  20
  21static int git_clean_config(const char *var, const char *value)
  22{
  23        if (!strcmp(var, "clean.requireforce"))
  24                force = !git_config_bool(var, value);
  25        return git_default_config(var, value);
  26}
  27
  28int cmd_clean(int argc, const char **argv, const char *prefix)
  29{
  30        int i;
  31        int show_only = 0, remove_directories = 0, quiet = 0, ignored = 0;
  32        int ignored_only = 0, baselen = 0, config_set = 0;
  33        struct strbuf directory;
  34        struct dir_struct dir;
  35        const char *path, *base;
  36        static const char **pathspec;
  37        char *seen = NULL;
  38        struct option options[] = {
  39                OPT__QUIET(&quiet),
  40                OPT__DRY_RUN(&show_only),
  41                OPT_BOOLEAN('f', NULL, &force, "force"),
  42                OPT_BOOLEAN('d', NULL, &remove_directories,
  43                                "remove whole directories"),
  44                OPT_BOOLEAN('x', NULL, &ignored, "remove ignored files, too"),
  45                OPT_BOOLEAN('X', NULL, &ignored_only,
  46                                "remove only ignored files"),
  47                OPT_END()
  48        };
  49
  50        git_config(git_clean_config);
  51        if (force < 0)
  52                force = 0;
  53        else
  54                config_set = 1;
  55
  56        argc = parse_options(argc, argv, options, builtin_clean_usage, 0);
  57
  58        memset(&dir, 0, sizeof(dir));
  59        if (ignored_only)
  60                dir.show_ignored = 1;
  61
  62        if (ignored && ignored_only)
  63                die("-x and -X cannot be used together");
  64
  65        if (!show_only && !force)
  66                die("clean.requireForce%s set and -n or -f not given; "
  67                    "refusing to clean", config_set ? "" : " not");
  68
  69        dir.show_other_directories = 1;
  70
  71        if (!ignored)
  72                setup_standard_excludes(&dir);
  73
  74        pathspec = get_pathspec(prefix, argv);
  75        read_cache();
  76
  77        /*
  78         * Calculate common prefix for the pathspec, and
  79         * use that to optimize the directory walk
  80         */
  81        baselen = common_prefix(pathspec);
  82        path = ".";
  83        base = "";
  84        if (baselen)
  85                path = base = xmemdupz(*pathspec, baselen);
  86        read_directory(&dir, path, base, baselen, pathspec);
  87        strbuf_init(&directory, 0);
  88
  89        if (pathspec)
  90                seen = xmalloc(argc);
  91
  92        for (i = 0; i < dir.nr; i++) {
  93                struct dir_entry *ent = dir.entries[i];
  94                int len, pos, matches;
  95                struct cache_entry *ce;
  96                struct stat st;
  97
  98                /*
  99                 * Remove the '/' at the end that directory
 100                 * walking adds for directory entries.
 101                 */
 102                len = ent->len;
 103                if (len && ent->name[len-1] == '/')
 104                        len--;
 105                pos = cache_name_pos(ent->name, len);
 106                if (0 <= pos)
 107                        continue;       /* exact match */
 108                pos = -pos - 1;
 109                if (pos < active_nr) {
 110                        ce = active_cache[pos];
 111                        if (ce_namelen(ce) == len &&
 112                            !memcmp(ce->name, ent->name, len))
 113                                continue; /* Yup, this one exists unmerged */
 114                }
 115
 116                /*
 117                 * we might have removed this as part of earlier
 118                 * recursive directory removal, so lstat() here could
 119                 * fail with ENOENT.
 120                 */
 121                if (lstat(ent->name, &st))
 122                        continue;
 123
 124                if (pathspec) {
 125                        memset(seen, 0, argc);
 126                        matches = match_pathspec(pathspec, ent->name, ent->len,
 127                                                 baselen, seen);
 128                } else {
 129                        matches = 0;
 130                }
 131
 132                if (S_ISDIR(st.st_mode)) {
 133                        strbuf_addstr(&directory, ent->name);
 134                        if (show_only && (remove_directories || matches)) {
 135                                printf("Would remove %s\n", directory.buf);
 136                        } else if (quiet && (remove_directories || matches)) {
 137                                remove_dir_recursively(&directory, 0);
 138                        } else if (remove_directories || matches) {
 139                                printf("Removing %s\n", directory.buf);
 140                                remove_dir_recursively(&directory, 0);
 141                        } else if (show_only) {
 142                                printf("Would not remove %s\n", directory.buf);
 143                        } else {
 144                                printf("Not removing %s\n", directory.buf);
 145                        }
 146                        strbuf_reset(&directory);
 147                } else {
 148                        if (pathspec && !matches)
 149                                continue;
 150                        if (show_only) {
 151                                printf("Would remove %s\n", ent->name);
 152                                continue;
 153                        } else if (!quiet) {
 154                                printf("Removing %s\n", ent->name);
 155                        }
 156                        unlink(ent->name);
 157                }
 158        }
 159        free(seen);
 160
 161        strbuf_release(&directory);
 162        return 0;
 163}