builtin-clean.c

   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
  14 static int force = -1; /* unset */
  15
  16 static const char *const builtin_clean_usage[] = {
  17         "git-clean [-d] [-f] [-n] [-q] [-x | -X] [--] <paths>...",
  18         NULL
  19 };
  20
  21 static 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
  28 int cmd_clean(int argc, const char **argv, const char *prefix)
  29 {
  30         int j;
  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         struct option options[] = {
  38                 OPT__QUIET(&quiet),
  39                 OPT__DRY_RUN(&show_only),
  40                 OPT_BOOLEAN('f', NULL, &force, "force"),
  41                 OPT_BOOLEAN('d', NULL, &remove_directories,
  42                                 "remove whole directories"),
  43                 OPT_BOOLEAN('x', NULL, &ignored, "remove ignored files, too"),
  44                 OPT_BOOLEAN('X', NULL, &ignored_only,
  45                                 "remove only ignored files"),
  46                 OPT_END()
  47         };
  48
  49         git_config(git_clean_config);
  50         if (force < 0)
  51                 force = 0;
  52         else
  53                 config_set = 1;
  54
  55         argc = parse_options(argc, argv, options, builtin_clean_usage, 0);
  56
  57         memset(&dir, 0, sizeof(dir));
  58         if (ignored_only)
  59                 dir.show_ignored = 1;
  60
  61         if (ignored && ignored_only)
  62                 die("-x and -X cannot be used together");
  63
  64         if (!show_only && !force)
  65                 die("clean.requireForce%s set and -n or -f not given; "
  66                     "refusing to clean", config_set ? "" : " not");
  67
  68         dir.show_other_directories = 1;
  69
  70         if (!ignored)
  71                 setup_standard_excludes(&dir);
  72
  73         pathspec = get_pathspec(prefix, argv);
  74         read_cache();
  75
  76         /*
  77          * Calculate common prefix for the pathspec, and
  78          * use that to optimize the directory walk
  79          */
  80         baselen = common_prefix(pathspec);
  81         path = ".";
  82         base = "";
  83         if (baselen)
  84                 path = base = xmemdupz(*pathspec, baselen);
  85         read_directory(&dir, path, base, baselen, pathspec);
  86         strbuf_init(&directory, 0);
  87
  88         for (j = 0; j < dir.nr; ++j) {
  89                 struct dir_entry *ent = dir.entries[j];
  90                 int len, pos, specs;
  91                 struct cache_entry *ce;
  92                 struct stat st;
  93                 char *seen;
  94
  95                 /*
  96                  * Remove the '/' at the end that directory
  97                  * walking adds for directory entries.
  98                  */
  99                 len = ent->len;
 100                 if (len && ent->name[len-1] == '/')
 101                         len--;
 102                 pos = cache_name_pos(ent->name, len);
 103                 if (0 <= pos)
 104                         continue;       /* exact match */
 105                 pos = -pos - 1;
 106                 if (pos < active_nr) {
 107                         ce = active_cache[pos];
 108                         if (ce_namelen(ce) == len &&
 109                             !memcmp(ce->name, ent->name, len))
 110                                 continue; /* Yup, this one exists unmerged */
 111                 }
 112
 113                 if (!lstat(ent->name, &st) && (S_ISDIR(st.st_mode))) {
 114                         int matched_path = 0;
 115                         strbuf_addstr(&directory, ent->name);
 116                         if (pathspec) {
 117                                 for (specs =0; pathspec[specs]; ++specs)
 118                                         /* nothing */;
 119                                 seen = xcalloc(specs, 1);
 120                                 /* Check if directory was explictly passed as
 121                                  * pathspec.  If so we want to remove it */
 122                                 if (match_pathspec(pathspec, ent->name, ent->len,
 123                                                    baselen, seen))
 124                                         matched_path = 1;
 125                                 free(seen);
 126                         }
 127                         if (show_only && (remove_directories || matched_path)) {
 128                                 printf("Would remove %s\n", directory.buf);
 129                         } else if (quiet && (remove_directories || matched_path)) {
 130                                 remove_dir_recursively(&directory, 0);
 131                         } else if (remove_directories || matched_path) {
 132                                 printf("Removing %s\n", directory.buf);
 133                                 remove_dir_recursively(&directory, 0);
 134                         } else if (show_only) {
 135                                 printf("Would not remove %s\n", directory.buf);
 136                         } else {
 137                                 printf("Not removing %s\n", directory.buf);
 138                         }
 139                         strbuf_reset(&directory);
 140                 } else {
 141                         if (show_only) {
 142                                 printf("Would remove %s\n", ent->name);
 143                                 continue;
 144                         } else if (!quiet) {
 145                                 printf("Removing %s\n", ent->name);
 146                         }
 147                         unlink(ent->name);
 148                 }
 149         }
 150
 151         strbuf_release(&directory);
 152         return 0;
 153 }