2 * Check-out files from the "current cache directory"
4 * Copyright (C) 2005 Linus Torvalds
7 #define USE_THE_INDEX_COMPATIBILITY_MACROS
12 #include "cache-tree.h"
13 #include "parse-options.h"
16 #define CHECKOUT_ALL 4
17 static int nul_term_line
;
18 static int checkout_stage
; /* default to checkout stage0 */
19 static int to_tempfile
;
20 static char topath
[4][TEMPORARY_FILENAME_LENGTH
+ 1];
22 static struct checkout state
= CHECKOUT_INIT
;
24 static void write_tempfile_record(const char *name
, const char *prefix
)
27 int have_tempname
= 0;
29 if (CHECKOUT_ALL
== checkout_stage
) {
30 for (i
= 1; i
< 4; i
++)
37 for (i
= 1; i
< 4; i
++) {
41 fputs(topath
[i
], stdout
);
46 } else if (topath
[checkout_stage
][0]) {
48 fputs(topath
[checkout_stage
], stdout
);
53 write_name_quoted_relative(name
, prefix
, stdout
,
54 nul_term_line
? '\0' : '\n');
57 for (i
= 0; i
< 4; i
++) {
62 static int checkout_file(const char *name
, const char *prefix
)
64 int namelen
= strlen(name
);
65 int pos
= cache_name_pos(name
, namelen
);
66 int has_same_name
= 0;
73 while (pos
< active_nr
) {
74 struct cache_entry
*ce
= active_cache
[pos
];
75 if (ce_namelen(ce
) != namelen
||
76 memcmp(ce
->name
, name
, namelen
))
80 if (ce_stage(ce
) != checkout_stage
81 && (CHECKOUT_ALL
!= checkout_stage
|| !ce_stage(ce
)))
84 if (checkout_entry(ce
, &state
,
85 to_tempfile
? topath
[ce_stage(ce
)] : NULL
,
92 write_tempfile_record(name
, prefix
);
93 return errs
> 0 ? -1 : 0;
97 * At this point we know we didn't try to check anything out. If it was
98 * because we did find an entry but it was stage 0, that's not an
101 if (has_same_name
&& checkout_stage
== CHECKOUT_ALL
)
105 fprintf(stderr
, "git checkout-index: %s ", name
);
107 fprintf(stderr
, "is not in the cache");
108 else if (checkout_stage
)
109 fprintf(stderr
, "does not exist at stage %d",
112 fprintf(stderr
, "is unmerged");
118 static void checkout_all(const char *prefix
, int prefix_length
)
121 struct cache_entry
*last_ce
= NULL
;
123 for (i
= 0; i
< active_nr
; i
++) {
124 struct cache_entry
*ce
= active_cache
[i
];
125 if (ce_stage(ce
) != checkout_stage
126 && (CHECKOUT_ALL
!= checkout_stage
|| !ce_stage(ce
)))
128 if (prefix
&& *prefix
&&
129 (ce_namelen(ce
) <= prefix_length
||
130 memcmp(prefix
, ce
->name
, prefix_length
)))
132 if (last_ce
&& to_tempfile
) {
133 if (ce_namelen(last_ce
) != ce_namelen(ce
)
134 || memcmp(last_ce
->name
, ce
->name
, ce_namelen(ce
)))
135 write_tempfile_record(last_ce
->name
, prefix
);
137 if (checkout_entry(ce
, &state
,
138 to_tempfile
? topath
[ce_stage(ce
)] : NULL
,
143 if (last_ce
&& to_tempfile
)
144 write_tempfile_record(last_ce
->name
, prefix
);
146 /* we have already done our error reporting.
147 * exit with the same code as die().
152 static const char * const builtin_checkout_index_usage
[] = {
153 N_("git checkout-index [<options>] [--] [<file>...]"),
157 static int option_parse_stage(const struct option
*opt
,
158 const char *arg
, int unset
)
160 BUG_ON_OPT_NEG(unset
);
162 if (!strcmp(arg
, "all")) {
164 checkout_stage
= CHECKOUT_ALL
;
167 if ('1' <= ch
&& ch
<= '3')
168 checkout_stage
= arg
[0] - '0';
170 die(_("stage should be between 1 and 3 or all"));
175 int cmd_checkout_index(int argc
, const char **argv
, const char *prefix
)
178 struct lock_file lock_file
= LOCK_INIT
;
180 int read_from_stdin
= 0;
182 int force
= 0, quiet
= 0, not_new
= 0;
185 struct option builtin_checkout_index_options
[] = {
186 OPT_BOOL('a', "all", &all
,
187 N_("check out all files in the index")),
188 OPT__FORCE(&force
, N_("force overwrite of existing files"), 0),
190 N_("no warning for existing files and files not in index")),
191 OPT_BOOL('n', "no-create", ¬_new
,
192 N_("don't checkout new files")),
193 OPT_BOOL('u', "index", &index_opt
,
194 N_("update stat information in the index file")),
195 OPT_BOOL('z', NULL
, &nul_term_line
,
196 N_("paths are separated with NUL character")),
197 OPT_BOOL(0, "stdin", &read_from_stdin
,
198 N_("read list of paths from the standard input")),
199 OPT_BOOL(0, "temp", &to_tempfile
,
200 N_("write the content to temporary files")),
201 OPT_STRING(0, "prefix", &state
.base_dir
, N_("string"),
202 N_("when creating files, prepend <string>")),
203 OPT_CALLBACK_F(0, "stage", NULL
, "(1|2|3|all)",
204 N_("copy out the files from named stage"),
205 PARSE_OPT_NONEG
, option_parse_stage
),
209 if (argc
== 2 && !strcmp(argv
[1], "-h"))
210 usage_with_options(builtin_checkout_index_usage
,
211 builtin_checkout_index_options
);
212 git_config(git_default_config
, NULL
);
213 prefix_length
= prefix
? strlen(prefix
) : 0;
215 if (read_cache() < 0) {
216 die("invalid cache");
219 argc
= parse_options(argc
, argv
, prefix
, builtin_checkout_index_options
,
220 builtin_checkout_index_usage
, 0);
221 state
.istate
= &the_index
;
224 state
.not_new
= not_new
;
228 state
.base_dir_len
= strlen(state
.base_dir
);
231 * when --prefix is specified we do not want to update cache.
233 if (index_opt
&& !state
.base_dir_len
&& !to_tempfile
) {
234 state
.refresh_cache
= 1;
235 state
.istate
= &the_index
;
236 hold_locked_index(&lock_file
, LOCK_DIE_ON_ERROR
);
239 /* Check out named files first */
240 for (i
= 0; i
< argc
; i
++) {
241 const char *arg
= argv
[i
];
245 die("git checkout-index: don't mix '--all' and explicit filenames");
247 die("git checkout-index: don't mix '--stdin' and explicit filenames");
248 p
= prefix_path(prefix
, prefix_length
, arg
);
249 err
|= checkout_file(p
, prefix
);
253 if (read_from_stdin
) {
254 struct strbuf buf
= STRBUF_INIT
;
255 struct strbuf unquoted
= STRBUF_INIT
;
256 strbuf_getline_fn getline_fn
;
259 die("git checkout-index: don't mix '--all' and '--stdin'");
261 getline_fn
= nul_term_line
? strbuf_getline_nul
: strbuf_getline_lf
;
262 while (getline_fn(&buf
, stdin
) != EOF
) {
264 if (!nul_term_line
&& buf
.buf
[0] == '"') {
265 strbuf_reset(&unquoted
);
266 if (unquote_c_style(&unquoted
, buf
.buf
, NULL
))
267 die("line is badly quoted");
268 strbuf_swap(&buf
, &unquoted
);
270 p
= prefix_path(prefix
, prefix_length
, buf
.buf
);
271 err
|= checkout_file(p
, prefix
);
274 strbuf_release(&unquoted
);
275 strbuf_release(&buf
);
282 checkout_all(prefix
, prefix_length
);
284 if (is_lock_file_locked(&lock_file
) &&
285 write_locked_index(&the_index
, &lock_file
, COMMIT_LOCK
))
286 die("Unable to write new index file");