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#include "quote.h"
  14
  15static int force = -1; /* unset */
  16
  17static const char *const builtin_clean_usage[] = {
  18        "git clean [-d] [-f] [-n] [-q] [-x | -X] [--] <paths>...",
  19        NULL
  20};
  21
  22static int git_clean_config(const char *var, const char *value, void *cb)
  23{
  24        if (!strcmp(var, "clean.requireforce"))
  25                force = !git_config_bool(var, value);
  26        return git_default_config(var, value, cb);
  27}
  28
  29int cmd_clean(int argc, const char **argv, const char *prefix)
  30{
  31        int i;
  32        int show_only = 0, remove_directories = 0, quiet = 0, ignored = 0;
  33        int ignored_only = 0, baselen = 0, config_set = 0, errors = 0;
  34        struct strbuf directory = STRBUF_INIT;
  35        struct dir_struct dir;
  36        const char *path, *base;
  37        static const char **pathspec;
  38        struct strbuf buf = STRBUF_INIT;
  39        const char *qname;
  40        char *seen = NULL;
  41        struct option options[] = {
  42                OPT__QUIET(&quiet),
  43                OPT__DRY_RUN(&show_only),
  44                OPT_BOOLEAN('f', NULL, &force, "force"),
  45                OPT_BOOLEAN('d', NULL, &remove_directories,
  46                                "remove whole directories"),
  47                OPT_BOOLEAN('x', NULL, &ignored, "remove ignored files, too"),
  48                OPT_BOOLEAN('X', NULL, &ignored_only,
  49                                "remove only ignored files"),
  50                OPT_END()
  51        };
  52
  53        git_config(git_clean_config, NULL);
  54        if (force < 0)
  55                force = 0;
  56        else
  57                config_set = 1;
  58
  59        argc = parse_options(argc, argv, options, builtin_clean_usage, 0);
  60
  61        memset(&dir, 0, sizeof(dir));
  62        if (ignored_only)
  63                dir.flags |= DIR_SHOW_IGNORED;
  64
  65        if (ignored && ignored_only)
  66                die("-x and -X cannot be used together");
  67
  68        if (!show_only && !force)
  69                die("clean.requireForce%s set and -n or -f not given; "
  70                    "refusing to clean", config_set ? "" : " not");
  71
  72        dir.flags |= DIR_SHOW_OTHER_DIRECTORIES;
  73
  74        if (!ignored)
  75                setup_standard_excludes(&dir);
  76
  77        pathspec = get_pathspec(prefix, argv);
  78        read_cache();
  79
  80        /*
  81         * Calculate common prefix for the pathspec, and
  82         * use that to optimize the directory walk
  83         */
  84        baselen = common_prefix(pathspec);
  85        path = ".";
  86        base = "";
  87        if (baselen)
  88                path = base = xmemdupz(*pathspec, baselen);
  89        read_directory(&dir, path, base, baselen, pathspec);
  90
  91        if (pathspec)
  92                seen = xmalloc(argc > 0 ? argc : 1);
  93
  94        for (i = 0; i < dir.nr; i++) {
  95                struct dir_entry *ent = dir.entries[i];
  96                int len, pos;
  97                int matches = 0;
  98                struct cache_entry *ce;
  99                struct stat st;
 100
 101                /*
 102                 * Remove the '/' at the end that directory
 103                 * walking adds for directory entries.
 104                 */
 105                len = ent->len;
 106                if (len && ent->name[len-1] == '/')
 107                        len--;
 108                pos = cache_name_pos(ent->name, len);
 109                if (0 <= pos)
 110                        continue;       /* exact match */
 111                pos = -pos - 1;
 112                if (pos < active_nr) {
 113                        ce = active_cache[pos];
 114                        if (ce_namelen(ce) == len &&
 115                            !memcmp(ce->name, ent->name, len))
 116                                continue; /* Yup, this one exists unmerged */
 117                }
 118
 119                /*
 120                 * we might have removed this as part of earlier
 121                 * recursive directory removal, so lstat() here could
 122                 * fail with ENOENT.
 123                 */
 124                if (lstat(ent->name, &st))
 125                        continue;
 126
 127                if (pathspec) {
 128                        memset(seen, 0, argc > 0 ? argc : 1);
 129                        matches = match_pathspec(pathspec, ent->name, len,
 130                                                 baselen, seen);
 131                }
 132
 133                if (S_ISDIR(st.st_mode)) {
 134                        strbuf_addstr(&directory, ent->name);
 135                        qname = quote_path_relative(directory.buf, directory.len, &buf, prefix);
 136                        if (show_only && (remove_directories ||
 137                            (matches == MATCHED_EXACTLY))) {
 138                                printf("Would remove %s\n", qname);
 139                        } else if (remove_directories ||
 140                                   (matches == MATCHED_EXACTLY)) {
 141                                if (!quiet)
 142                                        printf("Removing %s\n", qname);
 143                                if (remove_dir_recursively(&directory, 0) != 0) {
 144                                        warning("failed to remove '%s'", qname);
 145                                        errors++;
 146                                }
 147                        } else if (show_only) {
 148                                printf("Would not remove %s\n", qname);
 149                        } else {
 150                                printf("Not removing %s\n", qname);
 151                        }
 152                        strbuf_reset(&directory);
 153                } else {
 154                        if (pathspec && !matches)
 155                                continue;
 156                        qname = quote_path_relative(ent->name, -1, &buf, prefix);
 157                        if (show_only) {
 158                                printf("Would remove %s\n", qname);
 159                                continue;
 160                        } else if (!quiet) {
 161                                printf("Removing %s\n", qname);
 162                        }
 163                        if (unlink(ent->name) != 0) {
 164                                warning("failed to remove '%s'", qname);
 165                                errors++;
 166                        }
 167                }
 168        }
 169        free(seen);
 170
 171        strbuf_release(&directory);
 172        return (errors != 0);
 173}