Annotation of src/usr.bin/rcs/co.c, Revision 1.32
1.32 ! xsa 1: /* $OpenBSD: co.c,v 1.31 2005/11/22 16:20:45 xsa 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:
1.24 niallo 39: static int checkout_state(RCSFILE *, RCSNUM *, const char *, int,
40: const char *, const char *);
1.4 joris 41:
1.1 joris 42: int
43: checkout_main(int argc, char **argv)
44: {
45: int i, ch;
1.24 niallo 46: int flags;
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;
1.24 niallo 51: const char *state = NULL;
1.1 joris 52:
1.24 niallo 53: flags = 0;
1.1 joris 54: rev = RCS_HEAD_REV;
1.6 joris 55: frev = NULL;
1.4 joris 56:
57: if ((username = getlogin()) == NULL) {
1.10 xsa 58: cvs_log(LP_ERRNO, "failed to get username");
1.4 joris 59: exit (1);
60: }
61:
1.32 ! xsa 62: while ((ch = rcs_getopt(argc, argv, "f::l::M::p::q::r::s:u::Vx:")) != -1) {
1.1 joris 63: switch (ch) {
1.18 joris 64: case 'f':
1.19 joris 65: rcs_set_rev(rcs_optarg, &rev);
1.24 niallo 66: flags |= FORCE;
1.18 joris 67: break;
1.4 joris 68: case 'l':
1.19 joris 69: rcs_set_rev(rcs_optarg, &rev);
1.24 niallo 70: flags |= CO_LOCK;
1.26 niallo 71: break;
72: case 'M':
73: rcs_set_rev(rcs_optarg, &rev);
74: flags |= CO_REVDATE;
1.4 joris 75: break;
1.20 joris 76: case 'p':
77: rcs_set_rev(rcs_optarg, &rev);
78: pipeout = 1;
79: break;
1.3 joris 80: case 'q':
1.32 ! xsa 81: rcs_set_rev(rcs_optarg, &rev);
1.3 joris 82: verbose = 0;
83: break;
1.1 joris 84: case 'r':
1.19 joris 85: rcs_set_rev(rcs_optarg, &rev);
1.4 joris 86: break;
1.24 niallo 87: case 's':
88: if ((state = strdup(rcs_optarg)) == NULL) {
89: cvs_log(LP_ERRNO, "out of memory");
90: exit(1);
91: }
92: flags |= CO_STATE;
93: break;
1.4 joris 94: case 'u':
1.19 joris 95: rcs_set_rev(rcs_optarg, &rev);
1.24 niallo 96: flags |= CO_UNLOCK;
1.1 joris 97: break;
1.7 joris 98: case 'V':
99: printf("%s\n", rcs_version);
100: exit(0);
1.30 xsa 101: case 'x':
102: rcs_suffixes = rcs_optarg;
103: break;
1.1 joris 104: default:
105: (usage)();
106: exit(1);
107: }
108: }
109:
1.13 joris 110: argc -= rcs_optind;
111: argv += rcs_optind;
1.1 joris 112:
113: if (argc == 0) {
114: cvs_log(LP_ERR, "no input file");
115: (usage)();
116: exit (1);
117: }
1.11 deraadt 118:
1.1 joris 119: for (i = 0; i < argc; i++) {
120: if (rcs_statfile(argv[i], fpath, sizeof(fpath)) < 0)
121: continue;
122:
1.21 niallo 123: if (verbose == 1)
1.22 xsa 124: printf("%s --> %s\n", fpath,
125: (pipeout == 1) ? "standard output" : argv[i]);
1.21 niallo 126:
1.4 joris 127: if ((file = rcs_open(fpath, RCS_RDWR)) == NULL)
1.1 joris 128: continue;
129:
1.4 joris 130: if (rev == RCS_HEAD_REV)
131: frev = file->rf_head;
132: else
133: frev = rev;
1.17 joris 134:
1.4 joris 135: rcsnum_tostr(frev, buf, sizeof(buf));
1.17 joris 136:
1.24 niallo 137: if (flags & CO_STATE) {
138: if (checkout_state(file, frev, argv[i], flags,
139: username, state) < 0) {
140: rcs_close(file);
141: continue;
142: }
143: }
144: else {
145: if (checkout_rev(file, frev, argv[i], flags,
146: username) < 0) {
147: rcs_close(file);
148: continue;
149: }
1.8 niallo 150: }
1.17 joris 151:
1.1 joris 152: rcs_close(file);
153: }
154:
155: if (rev != RCS_HEAD_REV)
1.5 joris 156: rcsnum_free(frev);
1.1 joris 157:
158: return (0);
159: }
160:
161: void
162: checkout_usage(void)
163: {
1.11 deraadt 164: fprintf(stderr,
1.32 ! xsa 165: "usage: co [-V] [-ddate] [-f[rev]] [-I[rev]] [-kmode] [-l[rev]]\n"
! 166: " [-M[rev]] [-mmsg] [-p[rev]] [-q[rev]] [-r[rev]]\n"
! 167: " [-sstate] [-u[rev]] [-wuser] [-xsuffixes] [-ztz] file ...\n");
1.1 joris 168: }
1.14 niallo 169:
170: /*
171: * Checkout revision <rev> from RCSFILE <file>, writing it to the path <dst>
1.29 xsa 172: * Currenly recognised <flags> are CO_LOCK, CO_UNLOCK and CO_REVDATE.
1.14 niallo 173: *
174: * Returns 0 on success, -1 on failure.
175: */
176: int
1.24 niallo 177: checkout_rev(RCSFILE *file, RCSNUM *frev, const char *dst, int flags,
178: const char *username)
1.14 niallo 179: {
1.18 joris 180: char buf[16], yn;
1.14 niallo 181: mode_t mode = 0444;
182: BUF *bp;
1.18 joris 183: struct stat st;
1.20 joris 184: char *content;
1.14 niallo 185:
186: /*
1.15 niallo 187: * Check out the latest revision if <frev> is greater than HEAD
1.14 niallo 188: */
1.15 niallo 189: if (rcsnum_cmp(frev, file->rf_head, 0) == -1)
1.23 xsa 190: frev = file->rf_head;
1.15 niallo 191:
192: rcsnum_tostr(frev, buf, sizeof(buf));
193:
1.18 joris 194: if (verbose == 1)
195: printf("revision %s", buf);
196:
1.14 niallo 197: if ((bp = rcs_getrev(file, frev)) == NULL) {
198: cvs_log(LP_ERR, "cannot find revision `%s'", buf);
199: return (-1);
200: }
201:
1.24 niallo 202: if (flags & CO_LOCK) {
1.14 niallo 203: if ((username != NULL)
204: && (rcs_lock_add(file, username, frev) < 0)) {
1.21 niallo 205: if ((rcs_errno != RCS_ERR_DUPENT) && (verbose == 1))
1.14 niallo 206: cvs_log(LP_ERR, "failed to lock '%s'", buf);
207: }
1.18 joris 208:
1.14 niallo 209: mode = 0644;
1.18 joris 210: if (verbose == 1)
211: printf(" (locked)");
1.24 niallo 212: } else if (flags & CO_UNLOCK) {
1.14 niallo 213: if (rcs_lock_remove(file, frev) < 0) {
214: if (rcs_errno != RCS_ERR_NOENT)
215: cvs_log(LP_ERR,
216: "failed to remove lock '%s'", buf);
217: }
1.18 joris 218:
1.14 niallo 219: mode = 0444;
1.18 joris 220: if (verbose == 1)
221: printf(" (unlocked)");
222: }
223:
224: if (verbose == 1)
225: printf("\n");
226:
1.31 xsa 227: if ((pipeout == 0) && (stat(dst, &st) != -1) && !(flags & FORCE)) {
1.18 joris 228: if (st.st_mode & S_IWUSR) {
229: yn = 0;
1.21 niallo 230: if (verbose == 0) {
231: cvs_log(LP_ERR,
232: "writeable %s exists; checkout aborted",
233: dst);
234: return (-1);
235: }
1.18 joris 236: while (yn != 'y' && yn != 'n') {
1.21 niallo 237: printf("writeable %s exists; ", dst);
238: printf("remove it? [ny](n): ");
1.18 joris 239: fflush(stdout);
240: yn = getchar();
241: }
242:
243: if (yn == 'n') {
1.21 niallo 244: cvs_log(LP_ERR, "checkout aborted");
1.18 joris 245: return (-1);
246: }
247: }
1.14 niallo 248: }
1.17 joris 249:
1.20 joris 250: if (pipeout == 1) {
251: cvs_buf_putc(bp, '\0');
252: content = cvs_buf_release(bp);
253: printf("%s", content);
254: free(content);
255: } else {
256: if (cvs_buf_write(bp, dst, mode) < 0) {
257: cvs_log(LP_ERR, "failed to write revision to file");
258: cvs_buf_free(bp);
259: return (-1);
260: }
1.14 niallo 261: cvs_buf_free(bp);
1.24 niallo 262: if (flags & CO_REVDATE) {
263: struct timeval tv[2];
264: bzero(&tv, sizeof(tv));
265: tv[0].tv_sec = (long)rcs_rev_getdate(file, frev);
266: tv[1].tv_sec = tv[0].tv_sec;
267: if (utimes(dst, (const struct timeval *)&tv) < 0)
268: cvs_log(LP_ERRNO, "error setting utimes");
269: }
1.20 joris 270:
271: if (verbose == 1)
272: printf("done\n");
1.14 niallo 273: }
1.17 joris 274:
1.14 niallo 275: return (0);
276: }
277:
1.24 niallo 278: /*
279: * checkout_state()
280: *
281: * Search from supplied revision backwards until we find one
282: * with state <state> and check that out.
283: *
1.25 niallo 284: * Returns 0 on success, -1 on checkout_rev failure.
1.24 niallo 285: */
286: static int
287: checkout_state(RCSFILE *rfp, RCSNUM *rev, const char *dst, int flags,
288: const char *username, const char *state)
289: {
290: const char *tstate;
291:
292: if (rev == NULL) {
293: cvs_log(LP_ERR, "%s: No revision on branch has state %s",
294: rfp->rf_path, state);
295: return (-1);
296: }
297: else {
298: if (((tstate = rcs_state_get(rfp, rev)) != NULL)
299: && (strcmp(state, tstate) == 0))
300: return (checkout_rev(rfp, rev, dst, flags, username));
301: else
302: rev = rcsnum_dec(rev);
303: return (checkout_state(rfp, rev, dst, flags, username, state));
304: }
305: }
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