Annotation of src/usr.bin/rcs/co.c, Revision 1.86
1.86 ! joris 1: /* $OpenBSD: co.c,v 1.85 2006/04/26 02:55:13 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:
1.51 xsa 27: #include "includes.h"
1.1 joris 28:
29: #include "rcsprog.h"
30:
1.70 xsa 31: #define CO_OPTSTRING "d:f::I::k:l::M::p::q::r::s:Tu::Vw::x::z::"
1.38 xsa 32:
1.43 xsa 33: static void checkout_err_nobranch(RCSFILE *, const char *, const char *,
34: const char *, int);
1.4 joris 35:
1.1 joris 36: int
37: checkout_main(int argc, char **argv)
38: {
1.86 ! joris 39: int fd, i, ch, flags, kflag, status, warg;
1.78 pat 40: RCSNUM *rev;
1.1 joris 41: RCSFILE *file;
1.45 joris 42: char fpath[MAXPATHLEN];
1.78 pat 43: char *author, *date, *rev_str, *username, *state;
1.37 xsa 44: time_t rcs_mtime = -1;
1.1 joris 45:
1.78 pat 46: warg = flags = status = 0;
1.33 xsa 47: kflag = RCS_KWEXP_ERR;
1.1 joris 48: rev = RCS_HEAD_REV;
1.73 ray 49: rev_str = NULL;
1.44 joris 50: state = NULL;
51: author = NULL;
1.49 joris 52: date = NULL;
1.4 joris 53:
1.38 xsa 54: while ((ch = rcs_getopt(argc, argv, CO_OPTSTRING)) != -1) {
1.1 joris 55: switch (ch) {
1.49 joris 56: case 'd':
57: date = xstrdup(rcs_optarg);
58: break;
1.18 joris 59: case 'f':
1.73 ray 60: rcs_setrevstr(&rev_str, rcs_optarg);
1.24 niallo 61: flags |= FORCE;
1.18 joris 62: break;
1.65 niallo 63: case 'I':
1.73 ray 64: rcs_setrevstr(&rev_str, rcs_optarg);
1.65 niallo 65: flags |= INTERACTIVE;
66: break;
67:
1.33 xsa 68: case 'k':
69: kflag = rcs_kflag_get(rcs_optarg);
70: if (RCS_KWEXP_INVAL(kflag)) {
1.83 xsa 71: warnx("invalid RCS keyword substitution mode");
1.33 xsa 72: (usage)();
73: exit(1);
74: }
75: break;
1.4 joris 76: case 'l':
1.53 xsa 77: if (flags & CO_UNLOCK) {
1.81 xsa 78: warnx("warning: -u overridden by -l");
1.53 xsa 79: flags &= ~CO_UNLOCK;
80: }
1.73 ray 81: rcs_setrevstr(&rev_str, rcs_optarg);
1.24 niallo 82: flags |= CO_LOCK;
1.26 niallo 83: break;
84: case 'M':
1.73 ray 85: rcs_setrevstr(&rev_str, rcs_optarg);
1.26 niallo 86: flags |= CO_REVDATE;
1.4 joris 87: break;
1.20 joris 88: case 'p':
1.73 ray 89: rcs_setrevstr(&rev_str, rcs_optarg);
1.80 xsa 90: flags |= PIPEOUT;
1.20 joris 91: break;
1.3 joris 92: case 'q':
1.73 ray 93: rcs_setrevstr(&rev_str, rcs_optarg);
1.79 xsa 94: flags |= QUIET;
1.3 joris 95: break;
1.1 joris 96: case 'r':
1.73 ray 97: rcs_setrevstr(&rev_str, rcs_optarg);
1.4 joris 98: break;
1.24 niallo 99: case 's':
1.47 joris 100: state = xstrdup(rcs_optarg);
1.24 niallo 101: flags |= CO_STATE;
1.34 xsa 102: break;
103: case 'T':
104: flags |= PRESERVETIME;
1.24 niallo 105: break;
1.4 joris 106: case 'u':
1.73 ray 107: rcs_setrevstr(&rev_str, rcs_optarg);
1.53 xsa 108: if (flags & CO_LOCK) {
1.81 xsa 109: warnx("warning: -l overridden by -u");
1.53 xsa 110: flags &= ~CO_LOCK;
111: }
1.24 niallo 112: flags |= CO_UNLOCK;
1.1 joris 113: break;
1.7 joris 114: case 'V':
115: printf("%s\n", rcs_version);
116: exit(0);
1.62 ray 117: /* NOTREACHED */
1.38 xsa 118: case 'w':
1.44 joris 119: /* if no argument, assume current user */
120: if (rcs_optarg == NULL) {
1.48 xsa 121: if ((author = getlogin()) == NULL)
1.84 xsa 122: err(1, "getlogin");
1.78 pat 123: } else {
1.47 joris 124: author = xstrdup(rcs_optarg);
1.78 pat 125: warg = 1;
126: }
1.43 xsa 127: flags |= CO_AUTHOR;
1.38 xsa 128: break;
1.30 xsa 129: case 'x':
1.66 ray 130: /* Use blank extension if none given. */
131: rcs_suffixes = rcs_optarg ? rcs_optarg : "";
1.59 joris 132: break;
133: case 'z':
134: timezone_flag = rcs_optarg;
1.30 xsa 135: break;
1.1 joris 136: default:
137: (usage)();
138: exit(1);
139: }
140: }
141:
1.13 joris 142: argc -= rcs_optind;
143: argv += rcs_optind;
1.1 joris 144:
145: if (argc == 0) {
1.81 xsa 146: warnx("no input file");
1.1 joris 147: (usage)();
148: exit (1);
149: }
1.11 deraadt 150:
1.81 xsa 151: if ((username = getlogin()) == NULL)
1.84 xsa 152: err(1, "getlogin");
1.38 xsa 153:
1.1 joris 154: for (i = 0; i < argc; i++) {
1.86 ! joris 155: fd = rcs_statfile(argv[i], fpath, sizeof(fpath), flags);
! 156: if (fd < 0)
1.1 joris 157: continue;
158:
1.79 xsa 159: if (!(flags & QUIET))
1.22 xsa 160: printf("%s --> %s\n", fpath,
1.80 xsa 161: (flags & PIPEOUT) ? "standard output" : argv[i]);
1.35 xsa 162:
163: if ((flags & CO_LOCK) && (kflag & RCS_KWEXP_VAL)) {
1.81 xsa 164: warnx("%s: cannot combine -kv and -l", fpath);
1.86 ! joris 165: (void)close(fd);
1.35 xsa 166: continue;
167: }
1.21 niallo 168:
1.86 ! joris 169: if ((file = rcs_open(fpath, fd,
! 170: RCS_RDWR|RCS_PARSE_FULLY)) == NULL)
1.1 joris 171: continue;
172:
1.37 xsa 173: if (flags & PRESERVETIME)
1.86 ! joris 174: rcs_mtime = rcs_get_mtime(file);
1.37 xsa 175:
1.72 xsa 176: rcs_kwexp_set(file, kflag);
1.37 xsa 177:
1.75 ray 178: if (rev_str != NULL) {
179: if ((rev = rcs_getrevnum(rev_str, file)) == NULL)
1.84 xsa 180: errx(1, "invalid revision: %s", rev_str);
1.75 ray 181: } else {
1.76 joris 182: /* no revisions in RCS file, generate empty 0.0 */
183: if (file->rf_ndelta == 0) {
184: rev = rcsnum_parse("0.0");
185: if (rev == NULL)
1.84 xsa 186: errx(1, "failed to generate rev 0.0");
1.76 joris 187: } else {
188: rev = rcsnum_alloc();
189: rcsnum_cpy(file->rf_head, rev, 0);
190: }
1.73 ray 191: }
1.17 joris 192:
1.73 ray 193: if ((status = checkout_rev(file, rev, argv[i], flags,
1.64 niallo 194: username, author, state, date)) < 0) {
1.73 ray 195: rcs_close(file);
196: rcsnum_free(rev);
197: continue;
1.8 niallo 198: }
1.58 xsa 199:
1.79 xsa 200: if (!(flags & QUIET))
1.58 xsa 201: printf("done\n");
1.17 joris 202:
1.73 ray 203: rcsnum_free(rev);
1.37 xsa 204:
1.86 ! joris 205: rcs_write(file);
1.37 xsa 206: if (flags & PRESERVETIME)
1.86 ! joris 207: rcs_set_mtime(file, rcs_mtime);
! 208: rcs_close(file);
1.1 joris 209: }
210:
1.78 pat 211: if (author != NULL && warg)
212: xfree(author);
213:
214: if (date != NULL)
215: xfree(date);
216:
217: if (state != NULL)
218: xfree(state);
1.1 joris 219:
1.64 niallo 220: return (status);
1.1 joris 221: }
222:
223: void
224: checkout_usage(void)
225: {
1.11 deraadt 226: fprintf(stderr,
1.42 xsa 227: "usage: co [-TV] [-ddate] [-f[rev]] [-I[rev]] [-kmode] [-l[rev]]\n"
228: " [-M[rev]] [-p[rev]] [-q[rev]] [-r[rev]] [-sstate]\n"
229: " [-u[rev]] [-w[user]] [-xsuffixes] [-ztz] file ...\n");
1.1 joris 230: }
1.14 niallo 231:
232: /*
233: * Checkout revision <rev> from RCSFILE <file>, writing it to the path <dst>
1.29 xsa 234: * Currenly recognised <flags> are CO_LOCK, CO_UNLOCK and CO_REVDATE.
1.14 niallo 235: *
1.49 joris 236: * Looks up revision based upon <lockname>, <author>, <state> and <date>
1.44 joris 237: *
1.14 niallo 238: * Returns 0 on success, -1 on failure.
239: */
240: int
1.24 niallo 241: checkout_rev(RCSFILE *file, RCSNUM *frev, const char *dst, int flags,
1.49 joris 242: const char *lockname, const char *author, const char *state,
243: const char *date)
1.14 niallo 244: {
1.44 joris 245: BUF *bp;
1.69 joris 246: u_int i;
1.86 ! joris 247: int fd, lcount;
1.60 niallo 248: char buf[16];
1.14 niallo 249: mode_t mode = 0444;
1.18 joris 250: struct stat st;
1.44 joris 251: struct rcs_delta *rdp;
252: struct rcs_lock *lkp;
1.49 joris 253: char *content, msg[128], *fdate;
254: time_t rcsdate, givendate;
1.69 joris 255: RCSNUM *rev;
1.49 joris 256:
257: rcsdate = givendate = -1;
258: if (date != NULL)
1.85 joris 259: givendate = rcs_date_parse(date);
1.14 niallo 260:
1.76 joris 261: if (file->rf_ndelta == 0)
262: printf("no revisions present; generating empty revision 0.0\n");
263:
1.69 joris 264: /* XXX rcsnum_cmp()
265: * Check out the latest revision if <frev> is greater than HEAD
266: */
1.76 joris 267: if (file->rf_ndelta != 0) {
268: for (i = 0; i < file->rf_head->rn_len; i++) {
269: if (file->rf_head->rn_id[i] < frev->rn_id[i]) {
270: frev = file->rf_head;
271: break;
272: }
1.69 joris 273: }
274: }
1.15 niallo 275:
1.44 joris 276: lcount = 0;
277: TAILQ_FOREACH(lkp, &(file->rf_locks), rl_list) {
278: if (!strcmp(lkp->rl_name, lockname))
279: lcount++;
280: }
281:
282: /*
283: * If the user didn't specify any revision, we cycle through
284: * revisions to lookup the first one that matches what he specified.
285: *
286: * If we cannot find one, we return an error.
287: */
288: rdp = NULL;
1.77 deraadt 289: if (file->rf_ndelta != 0 && frev == file->rf_head) {
1.44 joris 290: if (lcount > 1) {
1.81 xsa 291: warnx("multiple revisions locked by %s; "
1.44 joris 292: "please specify one", lockname);
293: return (-1);
294: }
295:
296: TAILQ_FOREACH(rdp, &file->rf_delta, rd_list) {
1.49 joris 297: if (date != NULL) {
298: fdate = asctime(&rdp->rd_date);
1.85 joris 299: rcsdate = rcs_date_parse(fdate);
1.49 joris 300: if (givendate <= rcsdate)
301: continue;
302: }
303:
1.77 deraadt 304: if (author != NULL &&
305: strcmp(rdp->rd_author, author))
1.44 joris 306: continue;
1.49 joris 307:
1.77 deraadt 308: if (state != NULL &&
309: strcmp(rdp->rd_state, state))
1.44 joris 310: continue;
311:
312: frev = rdp->rd_num;
313: break;
314: }
1.76 joris 315: } else if (file->rf_ndelta != 0) {
1.44 joris 316: rdp = rcs_findrev(file, frev);
317: }
318:
1.77 deraadt 319: if (file->rf_ndelta != 0 && rdp == NULL) {
1.49 joris 320: checkout_err_nobranch(file, author, date, state, flags);
1.44 joris 321: return (-1);
322: }
323:
1.76 joris 324: if (file->rf_ndelta == 0)
325: rev = frev;
326: else
327: rev = rdp->rd_num;
328:
1.69 joris 329: rcsnum_tostr(rev, buf, sizeof(buf));
1.15 niallo 330:
1.77 deraadt 331: if (file->rf_ndelta != 0 && rdp->rd_locker != NULL) {
1.44 joris 332: if (strcmp(lockname, rdp->rd_locker)) {
333: strlcpy(msg, "Revision %s is already locked by %s; ",
334: sizeof(msg));
1.76 joris 335:
336: if (flags & CO_UNLOCK) {
337: strlcat(msg, "use co -r or rcs -u",
338: sizeof(msg));
339: }
340:
1.81 xsa 341: warnx(msg, buf, rdp->rd_locker);
1.44 joris 342: return (-1);
343: }
344: }
345:
1.79 xsa 346: if (!(flags & QUIET) && !(flags & NEWFILE) &&
1.77 deraadt 347: !(flags & CO_REVERT) && file->rf_ndelta != 0)
1.18 joris 348: printf("revision %s", buf);
1.74 deraadt 349:
1.79 xsa 350: if (!(flags & QUIET) && (flags & CO_REVERT))
1.71 niallo 351: printf("done");
1.18 joris 352:
1.76 joris 353: if (file->rf_ndelta != 0) {
354: if ((bp = rcs_getrev(file, rev)) == NULL) {
1.81 xsa 355: warnx("cannot find revision `%s'", buf);
1.76 joris 356: return (-1);
357: }
358: } else {
1.85 joris 359: bp = rcs_buf_alloc(1, 0);
1.14 niallo 360: }
1.69 joris 361:
1.55 niallo 362: /*
363: * Do keyword expansion if required.
364: */
1.76 joris 365: if (file->rf_ndelta != 0)
366: bp = rcs_kwexp_buf(bp, file, rev);
1.14 niallo 367:
1.67 niallo 368: /*
369: * File inherits permissions from its ,v file
370: */
1.86 ! joris 371: if (file->fd != -1) {
! 372: if (fstat(file->fd, &st) == -1)
! 373: err(1, "%s", file->rf_path);
! 374: mode = st.st_mode;
! 375: }
1.67 niallo 376:
1.24 niallo 377: if (flags & CO_LOCK) {
1.76 joris 378: if (file->rf_ndelta != 0) {
1.77 deraadt 379: if (lockname != NULL &&
380: rcs_lock_add(file, lockname, rev) < 0) {
1.76 joris 381: if (rcs_errno != RCS_ERR_DUPENT)
382: return (-1);
383: }
1.14 niallo 384: }
1.18 joris 385:
1.67 niallo 386: /* Strip all write bits from mode */
1.86 ! joris 387: if (file->fd != -1) {
! 388: mode = st.st_mode &
! 389: (S_IXUSR|S_IXGRP|S_IXOTH|S_IRUSR|S_IRGRP|S_IROTH);
! 390: }
! 391:
1.67 niallo 392: mode |= S_IWUSR;
1.76 joris 393:
394: if (file->rf_ndelta != 0) {
1.79 xsa 395: if (!(flags & QUIET) && !(flags & NEWFILE) &&
1.77 deraadt 396: !(flags & CO_REVERT))
1.76 joris 397: printf(" (locked)");
398: }
1.24 niallo 399: } else if (flags & CO_UNLOCK) {
1.76 joris 400: if (file->rf_ndelta != 0) {
401: if (rcs_lock_remove(file, lockname, rev) < 0) {
402: if (rcs_errno != RCS_ERR_NOENT)
403: return (-1);
404: }
1.46 joris 405: }
1.18 joris 406:
1.67 niallo 407: /* Strip all write bits from mode */
1.86 ! joris 408: if (file->fd != -1) {
! 409: mode = st.st_mode &
! 410: (S_IXUSR|S_IXGRP|S_IXOTH|S_IRUSR|S_IRGRP|S_IROTH);
! 411: }
1.76 joris 412:
413: if (file->rf_ndelta != 0) {
1.79 xsa 414: if (!(flags & QUIET) && !(flags & NEWFILE) &&
1.77 deraadt 415: !(flags & CO_REVERT))
1.76 joris 416: printf(" (unlocked)");
417: }
1.18 joris 418: }
1.56 xsa 419:
1.77 deraadt 420: if (file->rf_ndelta == 0 &&
1.76 joris 421: ((flags & CO_LOCK) || (flags & CO_UNLOCK))) {
1.81 xsa 422: warnx("no revisions, so nothing can be %s",
1.76 joris 423: (flags & CO_LOCK) ? "locked" : "unlocked");
424: } else if (file->rf_ndelta != 0) {
1.79 xsa 425: if (!(flags & QUIET) && !(flags & NEWFILE))
1.76 joris 426: printf("\n");
427: }
1.18 joris 428:
1.44 joris 429: if (flags & CO_LOCK) {
1.71 niallo 430: if (rcs_errno != RCS_ERR_DUPENT)
431: lcount++;
1.79 xsa 432: if (!(flags & QUIET) && lcount > 1 && !(flags & CO_REVERT))
1.81 xsa 433: warnx("%s: warning: You now have %d locks.",
1.63 xsa 434: file->rf_path, lcount);
1.44 joris 435: }
436:
1.86 ! joris 437: if (!(flags & PIPEOUT) && stat(dst, &st) != -1 && !(flags & FORCE)) {
1.68 ray 438: /*
439: * XXX - Not sure what is "right". If we go according
440: * to GNU's behavior, an existing file with no writable
441: * bits is overwritten without prompting the user.
442: *
443: * This is dangerous, so we always prompt.
444: * Unfortunately this interferes with an unlocked
445: * checkout followed by a locked checkout, which should
446: * not prompt. One (unimplemented) solution is to check
447: * if the existing file is the same as the checked out
448: * revision, and prompt if there are differences.
449: */
450: if (st.st_mode & (S_IWUSR|S_IWGRP|S_IWOTH))
1.61 ray 451: printf("writable ");
452: printf("%s exists%s; ", dst,
453: (getuid() == st.st_uid) ? "" :
454: ", and you do not own it");
455: printf("remove it? [ny](n): ");
456: /* default is n */
1.85 joris 457: if (rcs_yesno() == -1) {
1.79 xsa 458: if (!(flags & QUIET) && isatty(STDIN_FILENO))
1.81 xsa 459: warnx("writable %s exists; "
460: "checkout aborted", dst);
1.68 ray 461: else
1.81 xsa 462: warnx("checkout aborted");
1.61 ray 463: return (-1);
1.18 joris 464: }
1.14 niallo 465: }
1.17 joris 466:
1.80 xsa 467: if (flags & PIPEOUT) {
1.85 joris 468: rcs_buf_putc(bp, '\0');
469: content = rcs_buf_release(bp);
1.20 joris 470: printf("%s", content);
1.47 joris 471: xfree(content);
1.20 joris 472: } else {
1.86 ! joris 473: (void)unlink(dst);
! 474:
! 475: if ((fd = open(dst, O_WRONLY|O_CREAT|O_TRUNC, mode)) < 0)
! 476: err(1, "%s", dst);
! 477:
! 478: if (rcs_buf_write_fd(bp, fd) < 0) {
1.81 xsa 479: warnx("failed to write revision to file");
1.85 joris 480: rcs_buf_free(bp);
1.86 ! joris 481: (void)close(fd);
1.20 joris 482: return (-1);
483: }
1.86 ! joris 484:
! 485: if (fchmod(fd, mode) == -1)
! 486: warn("%s", dst);
! 487:
1.85 joris 488: rcs_buf_free(bp);
1.86 ! joris 489:
1.24 niallo 490: if (flags & CO_REVDATE) {
491: struct timeval tv[2];
1.36 xsa 492: memset(&tv, 0, sizeof(tv));
1.69 joris 493: tv[0].tv_sec = (long)rcs_rev_getdate(file, rev);
1.24 niallo 494: tv[1].tv_sec = tv[0].tv_sec;
1.86 ! joris 495: if (futimes(fd, (const struct timeval *)&tv) < 0)
1.81 xsa 496: warn("utimes");
1.24 niallo 497: }
1.86 ! joris 498:
! 499: (void)close(fd);
1.14 niallo 500: }
1.17 joris 501:
1.14 niallo 502: return (0);
1.43 xsa 503: }
504:
505: /*
506: * checkout_err_nobranch()
507: *
508: * XXX - should handle the dates too.
509: */
510: static void
511: checkout_err_nobranch(RCSFILE *file, const char *author, const char *date,
512: const char *state, int flags)
513: {
514: if (!(flags & CO_AUTHOR))
515: author = NULL;
516: if (!(flags & CO_STATE))
517: state = NULL;
518:
1.81 xsa 519: warnx("%s: No revision on branch has%s%s%s%s%s%s.",
1.43 xsa 520: file->rf_path,
521: date ? " a date before " : "",
522: date ? date : "",
523: author ? " and author " + (date ? 0:4 ) : "",
524: author ? author : "",
525: state ? " and state " + (date || author ? 0:4) : "",
526: state ? state : "");
1.24 niallo 527: }
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