Test :/string form for checkout
[git/dscho.git] / builtin-clean.c
blobeb853a37cf993a875f2acd1992ee5191783740a1
1 /*
2  * "git clean" builtin command
3  *
4  * Copyright (C) 2007 Shawn Bohrer
5  *
6  * Based on git-clean.sh by Pavel Roskin
7  */
9 #include "builtin.h"
10 #include "cache.h"
11 #include "dir.h"
12 #include "parse-options.h"
14 static int force = -1; /* unset */
16 static const char *const builtin_clean_usage[] = {
17         "git-clean [-d] [-f] [-n] [-q] [-x | -X] [--] <paths>...",
18         NULL
21 static int git_clean_config(const char *var, const char *value)
23         if (!strcmp(var, "clean.requireforce"))
24                 force = !git_config_bool(var, value);
25         return git_default_config(var, value);
28 int cmd_clean(int argc, const char **argv, const char *prefix)
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         int prefix_offset = 0;
38         char *seen = NULL;
39         struct option options[] = {
40                 OPT__QUIET(&quiet),
41                 OPT__DRY_RUN(&show_only),
42                 OPT_BOOLEAN('f', NULL, &force, "force"),
43                 OPT_BOOLEAN('d', NULL, &remove_directories,
44                                 "remove whole directories"),
45                 OPT_BOOLEAN('x', NULL, &ignored, "remove ignored files, too"),
46                 OPT_BOOLEAN('X', NULL, &ignored_only,
47                                 "remove only ignored files"),
48                 OPT_END()
49         };
51         git_config(git_clean_config);
52         if (force < 0)
53                 force = 0;
54         else
55                 config_set = 1;
57         argc = parse_options(argc, argv, options, builtin_clean_usage, 0);
59         memset(&dir, 0, sizeof(dir));
60         if (ignored_only)
61                 dir.show_ignored = 1;
63         if (ignored && ignored_only)
64                 die("-x and -X cannot be used together");
66         if (!show_only && !force)
67                 die("clean.requireForce%s set and -n or -f not given; "
68                     "refusing to clean", config_set ? "" : " not");
70         dir.show_other_directories = 1;
72         if (!ignored)
73                 setup_standard_excludes(&dir);
75         if (prefix)
76                 prefix_offset = strlen(prefix);
77         pathspec = get_pathspec(prefix, argv);
78         read_cache();
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         strbuf_init(&directory, 0);
92         if (pathspec)
93                 seen = xmalloc(argc > 0 ? argc : 1);
95         for (i = 0; i < dir.nr; i++) {
96                 struct dir_entry *ent = dir.entries[i];
97                 int len, pos, matches;
98                 struct cache_entry *ce;
99                 struct stat st;
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                 }
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;
127                 if (pathspec) {
128                         memset(seen, 0, argc > 0 ? argc : 1);
129                         matches = match_pathspec(pathspec, ent->name, ent->len,
130                                                  baselen, seen);
131                 } else {
132                         matches = 0;
133                 }
135                 if (S_ISDIR(st.st_mode)) {
136                         strbuf_addstr(&directory, ent->name);
137                         if (show_only && (remove_directories || matches)) {
138                                 printf("Would remove %s\n",
139                                        directory.buf + prefix_offset);
140                         } else if (quiet && (remove_directories || matches)) {
141                                 remove_dir_recursively(&directory, 0);
142                         } else if (remove_directories || matches) {
143                                 printf("Removing %s\n",
144                                        directory.buf + prefix_offset);
145                                 remove_dir_recursively(&directory, 0);
146                         } else if (show_only) {
147                                 printf("Would not remove %s\n",
148                                        directory.buf + prefix_offset);
149                         } else {
150                                 printf("Not removing %s\n",
151                                        directory.buf + prefix_offset);
152                         }
153                         strbuf_reset(&directory);
154                 } else {
155                         if (pathspec && !matches)
156                                 continue;
157                         if (show_only) {
158                                 printf("Would remove %s\n",
159                                        ent->name + prefix_offset);
160                                 continue;
161                         } else if (!quiet) {
162                                 printf("Removing %s\n",
163                                        ent->name + prefix_offset);
164                         }
165                         unlink(ent->name);
166                 }
167         }
168         free(seen);
170         strbuf_release(&directory);
171         return 0;