Annotation of src/usr.bin/rcs/co.c, Revision 1.87
1.87 ! ray 1: /* $OpenBSD: co.c,v 1.86 2006/04/26 21:55:22 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)) {
1.87 ! ray 333: if (strlcpy(msg, "Revision %s is already locked by %s; ",
! 334: sizeof(msg)) >= sizeof(msg))
! 335: errx(1, "msg too long");
1.76 joris 336:
337: if (flags & CO_UNLOCK) {
1.87 ! ray 338: if (strlcat(msg, "use co -r or rcs -u",
! 339: sizeof(msg)) >= sizeof(msg))
! 340: errx(1, "msg too long");
1.76 joris 341: }
342:
1.81 xsa 343: warnx(msg, buf, rdp->rd_locker);
1.44 joris 344: return (-1);
345: }
346: }
347:
1.79 xsa 348: if (!(flags & QUIET) && !(flags & NEWFILE) &&
1.77 deraadt 349: !(flags & CO_REVERT) && file->rf_ndelta != 0)
1.18 joris 350: printf("revision %s", buf);
1.74 deraadt 351:
1.79 xsa 352: if (!(flags & QUIET) && (flags & CO_REVERT))
1.71 niallo 353: printf("done");
1.18 joris 354:
1.76 joris 355: if (file->rf_ndelta != 0) {
356: if ((bp = rcs_getrev(file, rev)) == NULL) {
1.81 xsa 357: warnx("cannot find revision `%s'", buf);
1.76 joris 358: return (-1);
359: }
360: } else {
1.85 joris 361: bp = rcs_buf_alloc(1, 0);
1.14 niallo 362: }
1.69 joris 363:
1.55 niallo 364: /*
365: * Do keyword expansion if required.
366: */
1.76 joris 367: if (file->rf_ndelta != 0)
368: bp = rcs_kwexp_buf(bp, file, rev);
1.14 niallo 369:
1.67 niallo 370: /*
371: * File inherits permissions from its ,v file
372: */
1.86 joris 373: if (file->fd != -1) {
374: if (fstat(file->fd, &st) == -1)
375: err(1, "%s", file->rf_path);
376: mode = st.st_mode;
377: }
1.67 niallo 378:
1.24 niallo 379: if (flags & CO_LOCK) {
1.76 joris 380: if (file->rf_ndelta != 0) {
1.77 deraadt 381: if (lockname != NULL &&
382: rcs_lock_add(file, lockname, rev) < 0) {
1.76 joris 383: if (rcs_errno != RCS_ERR_DUPENT)
384: return (-1);
385: }
1.14 niallo 386: }
1.18 joris 387:
1.67 niallo 388: /* Strip all write bits from mode */
1.86 joris 389: if (file->fd != -1) {
390: mode = st.st_mode &
391: (S_IXUSR|S_IXGRP|S_IXOTH|S_IRUSR|S_IRGRP|S_IROTH);
392: }
393:
1.67 niallo 394: mode |= S_IWUSR;
1.76 joris 395:
396: if (file->rf_ndelta != 0) {
1.79 xsa 397: if (!(flags & QUIET) && !(flags & NEWFILE) &&
1.77 deraadt 398: !(flags & CO_REVERT))
1.76 joris 399: printf(" (locked)");
400: }
1.24 niallo 401: } else if (flags & CO_UNLOCK) {
1.76 joris 402: if (file->rf_ndelta != 0) {
403: if (rcs_lock_remove(file, lockname, rev) < 0) {
404: if (rcs_errno != RCS_ERR_NOENT)
405: return (-1);
406: }
1.46 joris 407: }
1.18 joris 408:
1.67 niallo 409: /* Strip all write bits from mode */
1.86 joris 410: if (file->fd != -1) {
411: mode = st.st_mode &
412: (S_IXUSR|S_IXGRP|S_IXOTH|S_IRUSR|S_IRGRP|S_IROTH);
413: }
1.76 joris 414:
415: if (file->rf_ndelta != 0) {
1.79 xsa 416: if (!(flags & QUIET) && !(flags & NEWFILE) &&
1.77 deraadt 417: !(flags & CO_REVERT))
1.76 joris 418: printf(" (unlocked)");
419: }
1.18 joris 420: }
1.56 xsa 421:
1.77 deraadt 422: if (file->rf_ndelta == 0 &&
1.76 joris 423: ((flags & CO_LOCK) || (flags & CO_UNLOCK))) {
1.81 xsa 424: warnx("no revisions, so nothing can be %s",
1.76 joris 425: (flags & CO_LOCK) ? "locked" : "unlocked");
426: } else if (file->rf_ndelta != 0) {
1.79 xsa 427: if (!(flags & QUIET) && !(flags & NEWFILE))
1.76 joris 428: printf("\n");
429: }
1.18 joris 430:
1.44 joris 431: if (flags & CO_LOCK) {
1.71 niallo 432: if (rcs_errno != RCS_ERR_DUPENT)
433: lcount++;
1.79 xsa 434: if (!(flags & QUIET) && lcount > 1 && !(flags & CO_REVERT))
1.81 xsa 435: warnx("%s: warning: You now have %d locks.",
1.63 xsa 436: file->rf_path, lcount);
1.44 joris 437: }
438:
1.86 joris 439: if (!(flags & PIPEOUT) && stat(dst, &st) != -1 && !(flags & FORCE)) {
1.68 ray 440: /*
441: * XXX - Not sure what is "right". If we go according
442: * to GNU's behavior, an existing file with no writable
443: * bits is overwritten without prompting the user.
444: *
445: * This is dangerous, so we always prompt.
446: * Unfortunately this interferes with an unlocked
447: * checkout followed by a locked checkout, which should
448: * not prompt. One (unimplemented) solution is to check
449: * if the existing file is the same as the checked out
450: * revision, and prompt if there are differences.
451: */
452: if (st.st_mode & (S_IWUSR|S_IWGRP|S_IWOTH))
1.61 ray 453: printf("writable ");
454: printf("%s exists%s; ", dst,
455: (getuid() == st.st_uid) ? "" :
456: ", and you do not own it");
457: printf("remove it? [ny](n): ");
458: /* default is n */
1.85 joris 459: if (rcs_yesno() == -1) {
1.79 xsa 460: if (!(flags & QUIET) && isatty(STDIN_FILENO))
1.81 xsa 461: warnx("writable %s exists; "
462: "checkout aborted", dst);
1.68 ray 463: else
1.81 xsa 464: warnx("checkout aborted");
1.61 ray 465: return (-1);
1.18 joris 466: }
1.14 niallo 467: }
1.17 joris 468:
1.80 xsa 469: if (flags & PIPEOUT) {
1.85 joris 470: rcs_buf_putc(bp, '\0');
471: content = rcs_buf_release(bp);
1.20 joris 472: printf("%s", content);
1.47 joris 473: xfree(content);
1.20 joris 474: } else {
1.86 joris 475: (void)unlink(dst);
476:
477: if ((fd = open(dst, O_WRONLY|O_CREAT|O_TRUNC, mode)) < 0)
478: err(1, "%s", dst);
479:
480: if (rcs_buf_write_fd(bp, fd) < 0) {
1.81 xsa 481: warnx("failed to write revision to file");
1.85 joris 482: rcs_buf_free(bp);
1.86 joris 483: (void)close(fd);
1.20 joris 484: return (-1);
485: }
1.86 joris 486:
487: if (fchmod(fd, mode) == -1)
488: warn("%s", dst);
489:
1.85 joris 490: rcs_buf_free(bp);
1.86 joris 491:
1.24 niallo 492: if (flags & CO_REVDATE) {
493: struct timeval tv[2];
1.36 xsa 494: memset(&tv, 0, sizeof(tv));
1.69 joris 495: tv[0].tv_sec = (long)rcs_rev_getdate(file, rev);
1.24 niallo 496: tv[1].tv_sec = tv[0].tv_sec;
1.86 joris 497: if (futimes(fd, (const struct timeval *)&tv) < 0)
1.81 xsa 498: warn("utimes");
1.24 niallo 499: }
1.86 joris 500:
501: (void)close(fd);
1.14 niallo 502: }
1.17 joris 503:
1.14 niallo 504: return (0);
1.43 xsa 505: }
506:
507: /*
508: * checkout_err_nobranch()
509: *
510: * XXX - should handle the dates too.
511: */
512: static void
513: checkout_err_nobranch(RCSFILE *file, const char *author, const char *date,
514: const char *state, int flags)
515: {
516: if (!(flags & CO_AUTHOR))
517: author = NULL;
518: if (!(flags & CO_STATE))
519: state = NULL;
520:
1.81 xsa 521: warnx("%s: No revision on branch has%s%s%s%s%s%s.",
1.43 xsa 522: file->rf_path,
523: date ? " a date before " : "",
524: date ? date : "",
525: author ? " and author " + (date ? 0:4 ) : "",
526: author ? author : "",
527: state ? " and state " + (date || author ? 0:4) : "",
528: state ? state : "");
1.24 niallo 529: }
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