Merge branch 'jt/http-redact-cookies' into maint
[git.git] / builtin / checkout-index.c
blobb0e78b819db3138f1c5ac4fe4b5d850ab306b470
1 /*
2 * Check-out files from the "current cache directory"
4 * Copyright (C) 2005 Linus Torvalds
6 */
7 #include "builtin.h"
8 #include "config.h"
9 #include "lockfile.h"
10 #include "quote.h"
11 #include "cache-tree.h"
12 #include "parse-options.h"
14 #define CHECKOUT_ALL 4
15 static int nul_term_line;
16 static int checkout_stage; /* default to checkout stage0 */
17 static int to_tempfile;
18 static char topath[4][TEMPORARY_FILENAME_LENGTH + 1];
20 static struct checkout state = CHECKOUT_INIT;
22 static void write_tempfile_record(const char *name, const char *prefix)
24 int i;
26 if (CHECKOUT_ALL == checkout_stage) {
27 for (i = 1; i < 4; i++) {
28 if (i > 1)
29 putchar(' ');
30 if (topath[i][0])
31 fputs(topath[i], stdout);
32 else
33 putchar('.');
35 } else
36 fputs(topath[checkout_stage], stdout);
38 putchar('\t');
39 write_name_quoted_relative(name, prefix, stdout,
40 nul_term_line ? '\0' : '\n');
42 for (i = 0; i < 4; i++) {
43 topath[i][0] = 0;
47 static int checkout_file(const char *name, const char *prefix)
49 int namelen = strlen(name);
50 int pos = cache_name_pos(name, namelen);
51 int has_same_name = 0;
52 int did_checkout = 0;
53 int errs = 0;
55 if (pos < 0)
56 pos = -pos - 1;
58 while (pos < active_nr) {
59 struct cache_entry *ce = active_cache[pos];
60 if (ce_namelen(ce) != namelen ||
61 memcmp(ce->name, name, namelen))
62 break;
63 has_same_name = 1;
64 pos++;
65 if (ce_stage(ce) != checkout_stage
66 && (CHECKOUT_ALL != checkout_stage || !ce_stage(ce)))
67 continue;
68 did_checkout = 1;
69 if (checkout_entry(ce, &state,
70 to_tempfile ? topath[ce_stage(ce)] : NULL) < 0)
71 errs++;
74 if (did_checkout) {
75 if (to_tempfile)
76 write_tempfile_record(name, prefix);
77 return errs > 0 ? -1 : 0;
80 if (!state.quiet) {
81 fprintf(stderr, "git checkout-index: %s ", name);
82 if (!has_same_name)
83 fprintf(stderr, "is not in the cache");
84 else if (checkout_stage)
85 fprintf(stderr, "does not exist at stage %d",
86 checkout_stage);
87 else
88 fprintf(stderr, "is unmerged");
89 fputc('\n', stderr);
91 return -1;
94 static void checkout_all(const char *prefix, int prefix_length)
96 int i, errs = 0;
97 struct cache_entry *last_ce = NULL;
99 for (i = 0; i < active_nr ; i++) {
100 struct cache_entry *ce = active_cache[i];
101 if (ce_stage(ce) != checkout_stage
102 && (CHECKOUT_ALL != checkout_stage || !ce_stage(ce)))
103 continue;
104 if (prefix && *prefix &&
105 (ce_namelen(ce) <= prefix_length ||
106 memcmp(prefix, ce->name, prefix_length)))
107 continue;
108 if (last_ce && to_tempfile) {
109 if (ce_namelen(last_ce) != ce_namelen(ce)
110 || memcmp(last_ce->name, ce->name, ce_namelen(ce)))
111 write_tempfile_record(last_ce->name, prefix);
113 if (checkout_entry(ce, &state,
114 to_tempfile ? topath[ce_stage(ce)] : NULL) < 0)
115 errs++;
116 last_ce = ce;
118 if (last_ce && to_tempfile)
119 write_tempfile_record(last_ce->name, prefix);
120 if (errs)
121 /* we have already done our error reporting.
122 * exit with the same code as die().
124 exit(128);
127 static const char * const builtin_checkout_index_usage[] = {
128 N_("git checkout-index [<options>] [--] [<file>...]"),
129 NULL
132 static int option_parse_stage(const struct option *opt,
133 const char *arg, int unset)
135 if (!strcmp(arg, "all")) {
136 to_tempfile = 1;
137 checkout_stage = CHECKOUT_ALL;
138 } else {
139 int ch = arg[0];
140 if ('1' <= ch && ch <= '3')
141 checkout_stage = arg[0] - '0';
142 else
143 die(_("stage should be between 1 and 3 or all"));
145 return 0;
148 int cmd_checkout_index(int argc, const char **argv, const char *prefix)
150 int i;
151 struct lock_file lock_file = LOCK_INIT;
152 int all = 0;
153 int read_from_stdin = 0;
154 int prefix_length;
155 int force = 0, quiet = 0, not_new = 0;
156 int index_opt = 0;
157 struct option builtin_checkout_index_options[] = {
158 OPT_BOOL('a', "all", &all,
159 N_("check out all files in the index")),
160 OPT__FORCE(&force, N_("force overwrite of existing files")),
161 OPT__QUIET(&quiet,
162 N_("no warning for existing files and files not in index")),
163 OPT_BOOL('n', "no-create", &not_new,
164 N_("don't checkout new files")),
165 OPT_BOOL('u', "index", &index_opt,
166 N_("update stat information in the index file")),
167 OPT_BOOL('z', NULL, &nul_term_line,
168 N_("paths are separated with NUL character")),
169 OPT_BOOL(0, "stdin", &read_from_stdin,
170 N_("read list of paths from the standard input")),
171 OPT_BOOL(0, "temp", &to_tempfile,
172 N_("write the content to temporary files")),
173 OPT_STRING(0, "prefix", &state.base_dir, N_("string"),
174 N_("when creating files, prepend <string>")),
175 { OPTION_CALLBACK, 0, "stage", NULL, "1-3|all",
176 N_("copy out the files from named stage"),
177 PARSE_OPT_NONEG, option_parse_stage },
178 OPT_END()
181 if (argc == 2 && !strcmp(argv[1], "-h"))
182 usage_with_options(builtin_checkout_index_usage,
183 builtin_checkout_index_options);
184 git_config(git_default_config, NULL);
185 prefix_length = prefix ? strlen(prefix) : 0;
187 if (read_cache() < 0) {
188 die("invalid cache");
191 argc = parse_options(argc, argv, prefix, builtin_checkout_index_options,
192 builtin_checkout_index_usage, 0);
193 state.force = force;
194 state.quiet = quiet;
195 state.not_new = not_new;
197 if (!state.base_dir)
198 state.base_dir = "";
199 state.base_dir_len = strlen(state.base_dir);
202 * when --prefix is specified we do not want to update cache.
204 if (index_opt && !state.base_dir_len && !to_tempfile) {
205 state.refresh_cache = 1;
206 state.istate = &the_index;
207 hold_locked_index(&lock_file, LOCK_DIE_ON_ERROR);
210 /* Check out named files first */
211 for (i = 0; i < argc; i++) {
212 const char *arg = argv[i];
213 char *p;
215 if (all)
216 die("git checkout-index: don't mix '--all' and explicit filenames");
217 if (read_from_stdin)
218 die("git checkout-index: don't mix '--stdin' and explicit filenames");
219 p = prefix_path(prefix, prefix_length, arg);
220 checkout_file(p, prefix);
221 free(p);
224 if (read_from_stdin) {
225 struct strbuf buf = STRBUF_INIT;
226 struct strbuf unquoted = STRBUF_INIT;
227 strbuf_getline_fn getline_fn;
229 if (all)
230 die("git checkout-index: don't mix '--all' and '--stdin'");
232 getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf;
233 while (getline_fn(&buf, stdin) != EOF) {
234 char *p;
235 if (!nul_term_line && buf.buf[0] == '"') {
236 strbuf_reset(&unquoted);
237 if (unquote_c_style(&unquoted, buf.buf, NULL))
238 die("line is badly quoted");
239 strbuf_swap(&buf, &unquoted);
241 p = prefix_path(prefix, prefix_length, buf.buf);
242 checkout_file(p, prefix);
243 free(p);
245 strbuf_release(&unquoted);
246 strbuf_release(&buf);
249 if (all)
250 checkout_all(prefix, prefix_length);
252 if (is_lock_file_locked(&lock_file) &&
253 write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
254 die("Unable to write new index file");
255 return 0;