Annotation of src/usr.bin/rcs/co.c, Revision 1.19
1.19 ! joris 1: /* $OpenBSD: co.c,v 1.18 2005/10/17 15:33:12 joris Exp $ */
1.1 joris 2: /*
3: * Copyright (c) 2005 Joris Vink <joris@openbsd.org>
4: * All rights reserved.
5: *
6: * Redistribution and use in source and binary forms, with or without
7: * modification, are permitted provided that the following conditions
8: * are met:
9: *
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. The name of the author may not be used to endorse or promote products
13: * derived from this software without specific prior written permission.
14: *
15: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
16: * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
17: * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
18: * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19: * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
21: * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
22: * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
23: * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
24: * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25: */
26:
27: #include <sys/param.h>
28: #include <sys/stat.h>
29:
30: #include <stdio.h>
31: #include <stdlib.h>
32: #include <string.h>
1.4 joris 33: #include <unistd.h>
1.1 joris 34:
35: #include "log.h"
36: #include "rcs.h"
37: #include "rcsprog.h"
38:
1.4 joris 39: #define LOCK_LOCK 1
40: #define LOCK_UNLOCK 2
41:
1.1 joris 42: int
43: checkout_main(int argc, char **argv)
44: {
45: int i, ch;
1.18 joris 46: int fflag, lock;
1.4 joris 47: RCSNUM *frev, *rev;
1.1 joris 48: RCSFILE *file;
1.14 niallo 49: char fpath[MAXPATHLEN], buf[16];
1.4 joris 50: char *username;
1.1 joris 51:
1.18 joris 52: fflag = lock = 0;
1.1 joris 53: rev = RCS_HEAD_REV;
1.6 joris 54: frev = NULL;
1.4 joris 55:
56: if ((username = getlogin()) == NULL) {
1.10 xsa 57: cvs_log(LP_ERRNO, "failed to get username");
1.4 joris 58: exit (1);
59: }
60:
1.18 joris 61: while ((ch = rcs_getopt(argc, argv, "f::l::qr::u::V")) != -1) {
1.1 joris 62: switch (ch) {
1.18 joris 63: case 'f':
1.19 ! joris 64: rcs_set_rev(rcs_optarg, &rev);
1.18 joris 65: fflag = 1;
66: break;
1.4 joris 67: case 'l':
1.19 ! joris 68: rcs_set_rev(rcs_optarg, &rev);
1.4 joris 69: lock = LOCK_LOCK;
70: break;
1.3 joris 71: case 'q':
72: verbose = 0;
73: break;
1.1 joris 74: case 'r':
1.19 ! joris 75: rcs_set_rev(rcs_optarg, &rev);
1.4 joris 76: break;
77: case 'u':
1.19 ! joris 78: rcs_set_rev(rcs_optarg, &rev);
1.8 niallo 79: lock = LOCK_UNLOCK;
1.1 joris 80: break;
1.7 joris 81: case 'V':
82: printf("%s\n", rcs_version);
83: exit(0);
1.1 joris 84: default:
85: (usage)();
86: exit(1);
87: }
88: }
89:
1.13 joris 90: argc -= rcs_optind;
91: argv += rcs_optind;
1.1 joris 92:
93: if (argc == 0) {
94: cvs_log(LP_ERR, "no input file");
95: (usage)();
96: exit (1);
97: }
1.11 deraadt 98:
1.1 joris 99: for (i = 0; i < argc; i++) {
100: if (rcs_statfile(argv[i], fpath, sizeof(fpath)) < 0)
101: continue;
102:
1.4 joris 103: if ((file = rcs_open(fpath, RCS_RDWR)) == NULL)
1.1 joris 104: continue;
105:
1.4 joris 106: if (rev == RCS_HEAD_REV)
107: frev = file->rf_head;
108: else
109: frev = rev;
1.17 joris 110:
1.4 joris 111: rcsnum_tostr(frev, buf, sizeof(buf));
1.17 joris 112:
1.18 joris 113: if (checkout_rev(file, frev, argv[i], lock, username, fflag) < 0) {
1.8 niallo 114: rcs_close(file);
115: continue;
116: }
1.17 joris 117:
1.1 joris 118: rcs_close(file);
119: }
120:
121: if (rev != RCS_HEAD_REV)
1.5 joris 122: rcsnum_free(frev);
1.1 joris 123:
124: return (0);
125: }
126:
127: void
128: checkout_usage(void)
129: {
1.11 deraadt 130: fprintf(stderr,
1.16 niallo 131: "usage: co [-qV] [-l[rev]] [-r[rev]] [-u[rev]] file ...\n");
1.1 joris 132: }
1.14 niallo 133:
134: /*
135: * Checkout revision <rev> from RCSFILE <file>, writing it to the path <dst>
136: * <lkmode> is either LOCK_LOCK or LOCK_UNLOCK or something else
137: * (which has no effect).
138: * In the case of LOCK_LOCK, a lock is set for <username> if it is not NULL.
139: * In the case of LOCK_UNLOCK, all locks are removed for that revision.
140: *
141: * Returns 0 on success, -1 on failure.
142: */
143: int
144: checkout_rev(RCSFILE *file, RCSNUM *frev, const char *dst, int lkmode,
1.18 joris 145: const char *username, int force)
1.14 niallo 146: {
1.18 joris 147: char buf[16], yn;
1.14 niallo 148: mode_t mode = 0444;
149: BUF *bp;
1.18 joris 150: struct stat st;
1.14 niallo 151:
152: /*
1.15 niallo 153: * Check out the latest revision if <frev> is greater than HEAD
1.14 niallo 154: */
1.15 niallo 155: if (rcsnum_cmp(frev, file->rf_head, 0) == -1)
156: frev = file->rf_head;
157:
158: rcsnum_tostr(frev, buf, sizeof(buf));
159:
1.18 joris 160: if (verbose == 1)
161: printf("revision %s", buf);
162:
1.14 niallo 163: if ((bp = rcs_getrev(file, frev)) == NULL) {
164: cvs_log(LP_ERR, "cannot find revision `%s'", buf);
165: return (-1);
166: }
167:
168: if (lkmode == LOCK_LOCK) {
169: if ((username != NULL)
170: && (rcs_lock_add(file, username, frev) < 0)) {
171: if (rcs_errno != RCS_ERR_DUPENT)
172: cvs_log(LP_ERR, "failed to lock '%s'", buf);
173: else
174: cvs_log(LP_WARN, "you already have a lock");
175: }
1.18 joris 176:
1.14 niallo 177: mode = 0644;
1.18 joris 178: if (verbose == 1)
179: printf(" (locked)");
1.14 niallo 180: } else if (lkmode == LOCK_UNLOCK) {
181: if (rcs_lock_remove(file, frev) < 0) {
182: if (rcs_errno != RCS_ERR_NOENT)
183: cvs_log(LP_ERR,
184: "failed to remove lock '%s'", buf);
185: }
1.18 joris 186:
1.14 niallo 187: mode = 0444;
1.18 joris 188: if (verbose == 1)
189: printf(" (unlocked)");
190: }
191:
192: if (verbose == 1)
193: printf("\n");
194:
195: if ((stat(dst, &st) != -1) && force == 0) {
196: if (st.st_mode & S_IWUSR) {
197: yn = 0;
198: while (yn != 'y' && yn != 'n') {
199: printf("writeable '%s' exists; ", dst);
200: printf("remove it? [ny] (n):");
201: fflush(stdout);
202: yn = getchar();
203: }
204:
205: if (yn == 'n') {
206: if (verbose == 1)
207: cvs_log(LP_ERR, "checkout aborted");
208: return (-1);
209: }
210: }
1.14 niallo 211: }
1.17 joris 212:
1.14 niallo 213: if (cvs_buf_write(bp, dst, mode) < 0) {
214: cvs_log(LP_ERR, "failed to write revision to file");
215: cvs_buf_free(bp);
216: return (-1);
217: }
1.17 joris 218:
1.14 niallo 219: cvs_buf_free(bp);
1.17 joris 220:
1.18 joris 221: if (verbose == 1)
222: printf("done\n");
1.17 joris 223:
1.14 niallo 224: return (0);
225: }
226:
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