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        int rm_flags = REMOVE_DIR_KEEP_NESTED_GIT;
  35        struct strbuf directory = STRBUF_INIT;
  36        struct dir_struct dir;
  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', "force", &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, prefix, options, builtin_clean_usage,
  60                             0);
  61
  62        memset(&dir, 0, sizeof(dir));
  63        if (ignored_only)
  64                dir.flags |= DIR_SHOW_IGNORED;
  65
  66        if (ignored && ignored_only)
  67                die("-x and -X cannot be used together");
  68
  69        if (!show_only && !force)
  70                die("clean.requireForce %s to true and neither -n nor -f given; "
  71                    "refusing to clean", config_set ? "set" : "defaults");
  72
  73        if (force > 1)
  74                rm_flags = 0;
  75
  76        dir.flags |= DIR_SHOW_OTHER_DIRECTORIES;
  77
  78        if (read_cache() < 0)
  79                die("index file corrupt");
  80
  81        if (!ignored)
  82                setup_standard_excludes(&dir);
  83
  84        pathspec = get_pathspec(prefix, argv);
  85
  86        fill_directory(&dir, pathspec);
  87
  88        if (pathspec)
  89                seen = xmalloc(argc > 0 ? argc : 1);
  90
  91        for (i = 0; i < dir.nr; i++) {
  92                struct dir_entry *ent = dir.entries[i];
  93                int len, pos;
  94                int matches = 0;
  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 > 0 ? argc : 1);
 126                        matches = match_pathspec(pathspec, ent->name, len,
 127                                                 baselen, seen);
 128                }
 129
 130                if (S_ISDIR(st.st_mode)) {
 131                        strbuf_addstr(&directory, ent->name);
 132                        qname = quote_path_relative(directory.buf, directory.len, &buf, prefix);
 133                        if (show_only && (remove_directories ||
 134                            (matches == MATCHED_EXACTLY))) {
 135                                printf("Would remove %s\n", qname);
 136                        } else if (remove_directories ||
 137                                   (matches == MATCHED_EXACTLY)) {
 138                                if (!quiet)
 139                                        printf("Removing %s\n", qname);
 140                                if (remove_dir_recursively(&directory,
 141                                                           rm_flags) != 0) {
 142                                        warning("failed to remove '%s'", qname);
 143                                        errors++;
 144                                }
 145                        } else if (show_only) {
 146                                printf("Would not remove %s\n", qname);
 147                        } else {
 148                                printf("Not removing %s\n", qname);
 149                        }
 150                        strbuf_reset(&directory);
 151                } else {
 152                        if (pathspec && !matches)
 153                                continue;
 154                        qname = quote_path_relative(ent->name, -1, &buf, prefix);
 155                        if (show_only) {
 156                                printf("Would remove %s\n", qname);
 157                                continue;
 158                        } else if (!quiet) {
 159                                printf("Removing %s\n", qname);
 160                        }
 161                        if (unlink(ent->name) != 0) {
 162                                warning("failed to remove '%s'", qname);
 163                                errors++;
 164                        }
 165                }
 166        }
 167        free(seen);
 168
 169        strbuf_release(&directory);
 170        return (errors != 0);
 171}