Annotation of src/usr.bin/rcs/co.c, Revision 1.62
1.62 ! ray 1: /* $OpenBSD: co.c,v 1.61 2006/03/16 04:01:46 ray 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:
1.59 joris 31: #define CO_OPTSTRING "d:f::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: {
1.33 xsa 39: int i, ch, flags, kflag;
1.4 joris 40: RCSNUM *frev, *rev;
1.1 joris 41: RCSFILE *file;
1.45 joris 42: char fpath[MAXPATHLEN];
1.49 joris 43: char *author, *username, *date;
1.38 xsa 44: const char *state;
1.37 xsa 45: time_t rcs_mtime = -1;
1.1 joris 46:
1.24 niallo 47: flags = 0;
1.33 xsa 48: kflag = RCS_KWEXP_ERR;
1.1 joris 49: rev = RCS_HEAD_REV;
1.6 joris 50: frev = NULL;
1.44 joris 51: state = NULL;
52: author = NULL;
1.49 joris 53: date = NULL;
1.4 joris 54:
1.38 xsa 55: while ((ch = rcs_getopt(argc, argv, CO_OPTSTRING)) != -1) {
1.1 joris 56: switch (ch) {
1.49 joris 57: case 'd':
58: date = xstrdup(rcs_optarg);
59: break;
1.18 joris 60: case 'f':
1.19 joris 61: rcs_set_rev(rcs_optarg, &rev);
1.24 niallo 62: flags |= FORCE;
1.18 joris 63: break;
1.33 xsa 64: case 'k':
65: kflag = rcs_kflag_get(rcs_optarg);
66: if (RCS_KWEXP_INVAL(kflag)) {
67: cvs_log(LP_ERR,
68: "invalid RCS keyword expansion mode");
69: (usage)();
70: exit(1);
71: }
72: break;
1.4 joris 73: case 'l':
1.19 joris 74: rcs_set_rev(rcs_optarg, &rev);
1.53 xsa 75: if (flags & CO_UNLOCK) {
76: cvs_log(LP_ERR, "warning: -u overridden by -l");
77: flags &= ~CO_UNLOCK;
78: }
1.24 niallo 79: flags |= CO_LOCK;
1.26 niallo 80: break;
81: case 'M':
82: rcs_set_rev(rcs_optarg, &rev);
83: flags |= CO_REVDATE;
1.4 joris 84: break;
1.20 joris 85: case 'p':
86: rcs_set_rev(rcs_optarg, &rev);
87: pipeout = 1;
88: break;
1.3 joris 89: case 'q':
1.32 xsa 90: rcs_set_rev(rcs_optarg, &rev);
1.3 joris 91: verbose = 0;
92: break;
1.1 joris 93: case 'r':
1.19 joris 94: rcs_set_rev(rcs_optarg, &rev);
1.4 joris 95: break;
1.24 niallo 96: case 's':
1.47 joris 97: state = xstrdup(rcs_optarg);
1.24 niallo 98: flags |= CO_STATE;
1.34 xsa 99: break;
100: case 'T':
101: flags |= PRESERVETIME;
1.24 niallo 102: break;
1.4 joris 103: case 'u':
1.19 joris 104: rcs_set_rev(rcs_optarg, &rev);
1.53 xsa 105: if (flags & CO_LOCK) {
106: cvs_log(LP_ERR, "warning: -l overridden by -u");
107: flags &= ~CO_LOCK;
108: }
1.24 niallo 109: flags |= CO_UNLOCK;
1.1 joris 110: break;
1.7 joris 111: case 'V':
112: printf("%s\n", rcs_version);
113: exit(0);
1.62 ! ray 114: /* NOTREACHED */
1.38 xsa 115: case 'w':
1.44 joris 116: /* if no argument, assume current user */
117: if (rcs_optarg == NULL) {
1.48 xsa 118: if ((author = getlogin()) == NULL)
119: fatal("getlogin failed");
1.47 joris 120: } else
121: author = xstrdup(rcs_optarg);
1.43 xsa 122: flags |= CO_AUTHOR;
1.38 xsa 123: break;
1.30 xsa 124: case 'x':
125: rcs_suffixes = rcs_optarg;
1.59 joris 126: break;
127: case 'z':
128: timezone_flag = rcs_optarg;
1.30 xsa 129: break;
1.1 joris 130: default:
131: (usage)();
132: exit(1);
133: }
134: }
135:
1.13 joris 136: argc -= rcs_optind;
137: argv += rcs_optind;
1.1 joris 138:
139: if (argc == 0) {
140: cvs_log(LP_ERR, "no input file");
141: (usage)();
142: exit (1);
143: }
1.11 deraadt 144:
1.44 joris 145: if ((username = getlogin()) == NULL) {
1.38 xsa 146: cvs_log(LP_ERRNO, "failed to get username");
147: exit (1);
148: }
149:
1.1 joris 150: for (i = 0; i < argc; i++) {
151: if (rcs_statfile(argv[i], fpath, sizeof(fpath)) < 0)
152: continue;
153:
1.21 niallo 154: if (verbose == 1)
1.22 xsa 155: printf("%s --> %s\n", fpath,
156: (pipeout == 1) ? "standard output" : argv[i]);
1.35 xsa 157:
158: if ((flags & CO_LOCK) && (kflag & RCS_KWEXP_VAL)) {
159: cvs_log(LP_ERR, "%s: cannot combine -kv and -l", fpath);
160: continue;
161: }
1.21 niallo 162:
1.50 niallo 163: if ((file = rcs_open(fpath, RCS_RDWR|RCS_PARSE_FULLY)) == NULL)
1.1 joris 164: continue;
165:
1.37 xsa 166: if (flags & PRESERVETIME)
167: rcs_mtime = rcs_get_mtime(file->rf_path);
168:
169: if (kflag != RCS_KWEXP_ERR)
170: rcs_kwexp_set(file, kflag);
171:
1.4 joris 172: if (rev == RCS_HEAD_REV)
173: frev = file->rf_head;
174: else
175: frev = rev;
1.17 joris 176:
1.44 joris 177: if (checkout_rev(file, frev, argv[i], flags,
1.49 joris 178: username, author, state, date) < 0) {
1.24 niallo 179: rcs_close(file);
180: continue;
1.8 niallo 181: }
1.58 xsa 182:
183: if (verbose == 1)
184: printf("done\n");
1.17 joris 185:
1.1 joris 186: rcs_close(file);
1.37 xsa 187:
188: if (flags & PRESERVETIME)
189: rcs_set_mtime(fpath, rcs_mtime);
1.1 joris 190: }
191:
192: if (rev != RCS_HEAD_REV)
1.5 joris 193: rcsnum_free(frev);
1.1 joris 194:
195: return (0);
196: }
197:
198: void
199: checkout_usage(void)
200: {
1.11 deraadt 201: fprintf(stderr,
1.42 xsa 202: "usage: co [-TV] [-ddate] [-f[rev]] [-I[rev]] [-kmode] [-l[rev]]\n"
203: " [-M[rev]] [-p[rev]] [-q[rev]] [-r[rev]] [-sstate]\n"
204: " [-u[rev]] [-w[user]] [-xsuffixes] [-ztz] file ...\n");
1.1 joris 205: }
1.14 niallo 206:
207: /*
208: * Checkout revision <rev> from RCSFILE <file>, writing it to the path <dst>
1.29 xsa 209: * Currenly recognised <flags> are CO_LOCK, CO_UNLOCK and CO_REVDATE.
1.14 niallo 210: *
1.49 joris 211: * Looks up revision based upon <lockname>, <author>, <state> and <date>
1.44 joris 212: *
1.14 niallo 213: * Returns 0 on success, -1 on failure.
214: */
215: int
1.24 niallo 216: checkout_rev(RCSFILE *file, RCSNUM *frev, const char *dst, int flags,
1.49 joris 217: const char *lockname, const char *author, const char *state,
218: const char *date)
1.14 niallo 219: {
1.44 joris 220: BUF *bp;
221: int lcount;
1.60 niallo 222: char buf[16];
1.14 niallo 223: mode_t mode = 0444;
1.18 joris 224: struct stat st;
1.44 joris 225: struct rcs_delta *rdp;
226: struct rcs_lock *lkp;
1.49 joris 227: char *content, msg[128], *fdate;
228: time_t rcsdate, givendate;
229:
230: rcsdate = givendate = -1;
231: if (date != NULL)
232: givendate = cvs_date_parse(date);
1.14 niallo 233:
1.39 xsa 234: /* Check out the latest revision if <frev> is greater than HEAD */
1.15 niallo 235: if (rcsnum_cmp(frev, file->rf_head, 0) == -1)
1.23 xsa 236: frev = file->rf_head;
1.15 niallo 237:
1.44 joris 238: lcount = 0;
239: TAILQ_FOREACH(lkp, &(file->rf_locks), rl_list) {
240: if (!strcmp(lkp->rl_name, lockname))
241: lcount++;
242: }
243:
244: /*
245: * If the user didn't specify any revision, we cycle through
246: * revisions to lookup the first one that matches what he specified.
247: *
248: * If we cannot find one, we return an error.
249: */
250: rdp = NULL;
251: if (frev == file->rf_head) {
252: if (lcount > 1) {
253: cvs_log(LP_WARN,
254: "multiple revisions locked by %s; "
255: "please specify one", lockname);
256: return (-1);
257: }
258:
259: TAILQ_FOREACH(rdp, &file->rf_delta, rd_list) {
1.49 joris 260: if (date != NULL) {
261: fdate = asctime(&rdp->rd_date);
262: rcsdate = cvs_date_parse(fdate);
263: if (givendate <= rcsdate)
264: continue;
265: }
266:
1.44 joris 267: if ((author != NULL) &&
268: (strcmp(rdp->rd_author, author)))
269: continue;
1.49 joris 270:
1.44 joris 271: if ((state != NULL) &&
272: (strcmp(rdp->rd_state, state)))
273: continue;
274:
275: frev = rdp->rd_num;
276: break;
277: }
278: } else {
279: rdp = rcs_findrev(file, frev);
280: }
281:
282: if (rdp == NULL) {
1.49 joris 283: checkout_err_nobranch(file, author, date, state, flags);
1.44 joris 284: return (-1);
285: }
286:
1.15 niallo 287: rcsnum_tostr(frev, buf, sizeof(buf));
288:
1.44 joris 289: if (rdp->rd_locker != NULL) {
290: if (strcmp(lockname, rdp->rd_locker)) {
291: strlcpy(msg, "Revision %s is already locked by %s; ",
292: sizeof(msg));
293: if (flags & CO_UNLOCK)
294: strlcat(msg, "use co -r or rcs -u", sizeof(msg));
295: cvs_log(LP_ERR, msg, buf, rdp->rd_locker);
296: return (-1);
297: }
298: }
299:
1.53 xsa 300: if ((verbose == 1) && !(flags & NEWFILE))
1.18 joris 301: printf("revision %s", buf);
302:
1.44 joris 303:
1.14 niallo 304: if ((bp = rcs_getrev(file, frev)) == NULL) {
305: cvs_log(LP_ERR, "cannot find revision `%s'", buf);
306: return (-1);
307: }
1.55 niallo 308: /*
309: * Do keyword expansion if required.
310: */
311: bp = rcs_kwexp_buf(bp, file, frev);
1.14 niallo 312:
1.24 niallo 313: if (flags & CO_LOCK) {
1.44 joris 314: if ((lockname != NULL)
315: && (rcs_lock_add(file, lockname, frev) < 0)) {
316: if (rcs_errno != RCS_ERR_DUPENT)
317: return (-1);
1.14 niallo 318: }
1.18 joris 319:
1.14 niallo 320: mode = 0644;
1.53 xsa 321: if ((verbose == 1) && !(flags & NEWFILE))
1.57 xsa 322: printf(" (locked)");
1.24 niallo 323: } else if (flags & CO_UNLOCK) {
1.46 joris 324: if (rcs_lock_remove(file, lockname, frev) < 0) {
325: if (rcs_errno != RCS_ERR_NOENT)
326: return (-1);
327: }
1.18 joris 328:
1.14 niallo 329: mode = 0444;
1.53 xsa 330: if ((verbose == 1) && !(flags & NEWFILE))
1.57 xsa 331: printf(" (unlocked)");
1.18 joris 332: }
1.56 xsa 333:
334: if ((verbose == 1) && !(flags & NEWFILE))
335: printf("\n");
1.18 joris 336:
1.44 joris 337: if (flags & CO_LOCK) {
338: lcount++;
339: if (lcount > 1)
340: cvs_log(LP_WARN, "You now have %d locks.", lcount);
341: }
342:
1.41 xsa 343: if ((pipeout == 0) && (stat(dst, &st) == 0) && !(flags & FORCE)) {
1.61 ray 344: if (verbose == 0) {
345: cvs_log(LP_ERR,
346: "writable %s exists; checkout aborted",
347: dst);
348: return (-1);
349: }
1.41 xsa 350:
1.61 ray 351: if (st.st_mode & S_IWUSR)
352: printf("writable ");
353: printf("%s exists%s; ", dst,
354: (getuid() == st.st_uid) ? "" :
355: ", and you do not own it");
356: printf("remove it? [ny](n): ");
357: /* default is n */
358: if (cvs_yesno() == -1) {
359: cvs_log(LP_ERR, "checkout aborted");
360: return (-1);
1.18 joris 361: }
1.14 niallo 362: }
1.17 joris 363:
1.20 joris 364: if (pipeout == 1) {
365: cvs_buf_putc(bp, '\0');
366: content = cvs_buf_release(bp);
367: printf("%s", content);
1.47 joris 368: xfree(content);
1.20 joris 369: } else {
370: if (cvs_buf_write(bp, dst, mode) < 0) {
371: cvs_log(LP_ERR, "failed to write revision to file");
372: cvs_buf_free(bp);
373: return (-1);
374: }
1.14 niallo 375: cvs_buf_free(bp);
1.24 niallo 376: if (flags & CO_REVDATE) {
377: struct timeval tv[2];
1.36 xsa 378: memset(&tv, 0, sizeof(tv));
1.24 niallo 379: tv[0].tv_sec = (long)rcs_rev_getdate(file, frev);
380: tv[1].tv_sec = tv[0].tv_sec;
381: if (utimes(dst, (const struct timeval *)&tv) < 0)
382: cvs_log(LP_ERRNO, "error setting utimes");
383: }
1.14 niallo 384: }
1.17 joris 385:
1.14 niallo 386: return (0);
1.43 xsa 387: }
388:
389: /*
390: * checkout_err_nobranch()
391: *
392: * XXX - should handle the dates too.
393: */
394: static void
395: checkout_err_nobranch(RCSFILE *file, const char *author, const char *date,
396: const char *state, int flags)
397: {
398: if (!(flags & CO_AUTHOR))
399: author = NULL;
400: if (!(flags & CO_STATE))
401: state = NULL;
402:
403: cvs_log(LP_ERR, "%s: No revision on branch has%s%s%s%s%s%s.",
404: file->rf_path,
405: date ? " a date before " : "",
406: date ? date : "",
407: author ? " and author " + (date ? 0:4 ) : "",
408: author ? author : "",
409: state ? " and state " + (date || author ? 0:4) : "",
410: state ? state : "");
1.24 niallo 411: }
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