Annotation of src/usr.bin/cvs/logmsg.c, Revision 1.16
1.16 ! joris 1: /* $OpenBSD: logmsg.c,v 1.15 2005/06/02 16:05:38 xsa Exp $ */
1.1 jfb 2: /*
3: * Copyright (c) 2004 Jean-Francois Brousseau <jfb@openbsd.org>
1.7 tedu 4: * All rights reserved.
1.1 jfb 5: *
1.7 tedu 6: * Redistribution and use in source and binary forms, with or without
7: * modification, are permitted provided that the following conditions
8: * are met:
1.1 jfb 9: *
1.7 tedu 10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
1.1 jfb 12: * 2. The name of the author may not be used to endorse or promote products
1.7 tedu 13: * derived from this software without specific prior written permission.
1.1 jfb 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
1.7 tedu 24: * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.1 jfb 25: */
26:
27: #include <sys/types.h>
28: #include <sys/stat.h>
29:
30: #include <errno.h>
31: #include <stdio.h>
32: #include <stdlib.h>
1.14 xsa 33: #include <string.h>
1.1 jfb 34: #include <unistd.h>
35:
1.14 xsa 36: #include "buf.h"
1.1 jfb 37: #include "cvs.h"
38: #include "log.h"
1.2 jfb 39: #include "proto.h"
1.1 jfb 40:
41:
42: #define CVS_LOGMSG_BIGMSG 32000
43: #define CVS_LOGMSG_FTMPL "/tmp/cvsXXXXXXXXXX"
1.3 jfb 44: #define CVS_LOGMSG_PREFIX "CVS:"
1.8 jfb 45: #define CVS_LOGMSG_LINE \
1.1 jfb 46: "----------------------------------------------------------------------"
47:
48:
1.8 jfb 49: static const char *cvs_logmsg_ops[3] = {
50: "Added", "Modified", "Removed",
51: };
52:
53:
1.1 jfb 54: /*
55: * cvs_logmsg_open()
56: *
57: * Open the file specified by <path> and allocate a buffer large enough to
58: * hold all of the file's contents. Lines starting with the log prefix
59: * are not included in the result.
60: * The returned value must later be free()d.
61: * Returns a pointer to the allocated buffer on success, or NULL on failure.
62: */
63: char*
64: cvs_logmsg_open(const char *path)
65: {
66: int lcont;
67: size_t len;
68: char lbuf[256], *msg;
69: struct stat st;
70: FILE *fp;
71: BUF *bp;
72:
73: if (stat(path, &st) == -1) {
74: cvs_log(LP_ERRNO, "failed to stat `%s'", path);
75: return (NULL);
76: }
77:
78: if (!S_ISREG(st.st_mode)) {
79: cvs_log(LP_ERR, "message file must be a regular file");
80: return (NULL);
81: }
82:
83: if (st.st_size > CVS_LOGMSG_BIGMSG) {
84: do {
85: fprintf(stderr,
86: "The specified message file seems big. "
87: "Proceed anyways? (y/n) ");
88: if (fgets(lbuf, sizeof(lbuf), stdin) == NULL) {
89: cvs_log(LP_ERRNO,
90: "failed to read from standard input");
91: return (NULL);
92: }
93:
94: len = strlen(lbuf);
95: if ((len == 0) || (len > 2) ||
96: ((lbuf[0] != 'y') && (lbuf[0] != 'n'))) {
97: fprintf(stderr, "invalid input\n");
98: continue;
1.7 tedu 99: } else if (lbuf[0] == 'y')
1.1 jfb 100: break;
101: else if (lbuf[0] == 'n') {
102: cvs_log(LP_ERR, "aborted by user");
103: return (NULL);
104: }
105:
106: } while (1);
107: }
108:
109: if ((fp = fopen(path, "r")) == NULL) {
110: cvs_log(LP_ERRNO, "failed to open message file `%s'", path);
111: return (NULL);
112: }
113:
114: bp = cvs_buf_alloc(128, BUF_AUTOEXT);
1.11 jfb 115: if (bp == NULL) {
116: (void)fclose(fp);
1.1 jfb 117: return (NULL);
1.11 jfb 118: }
1.1 jfb 119:
120: /* lcont is used to tell if a buffer returned by fgets is a start
121: * of line or just line continuation because the buffer isn't
122: * large enough to hold the entire line.
123: */
124: lcont = 0;
125:
126: while (fgets(lbuf, sizeof(lbuf), fp) != NULL) {
127: len = strlen(lbuf);
128: if (len == 0)
129: continue;
1.3 jfb 130: else if ((lcont == 0) && (strncmp(lbuf, CVS_LOGMSG_PREFIX,
131: strlen(CVS_LOGMSG_PREFIX)) == 0))
1.1 jfb 132: /* skip lines starting with the prefix */
133: continue;
134:
1.11 jfb 135: if (cvs_buf_append(bp, lbuf, strlen(lbuf)) < 0) {
136: cvs_buf_free(bp);
137: (void)fclose(fp);
138: return (NULL);
139: }
1.1 jfb 140:
141: lcont = (lbuf[len - 1] == '\n') ? 0 : 1;
142: }
1.11 jfb 143: (void)fclose(fp);
144:
145: if (cvs_buf_putc(bp, '\0') < 0) {
146: cvs_buf_free(bp);
147: return (NULL);
148: }
1.1 jfb 149:
150: msg = (char *)cvs_buf_release(bp);
151:
152: return (msg);
153: }
154:
155:
156: /*
157: * cvs_logmsg_get()
158: *
1.8 jfb 159: * Get a log message by forking and executing the user's editor. The <dir>
160: * argument is a relative path to the directory for which the log message
1.12 david 161: * applies, and the 3 tail queue arguments contains all the files for which the
1.8 jfb 162: * log message will apply. Any of these arguments can be set to NULL in the
163: * case where there is no information to display.
1.1 jfb 164: * Returns the message in a dynamically allocated string on success, NULL on
165: * failure.
166: */
167: char*
1.8 jfb 168: cvs_logmsg_get(const char *dir, struct cvs_flist *added,
169: struct cvs_flist *modified, struct cvs_flist *removed)
1.1 jfb 170: {
1.8 jfb 171: int i, fd, argc, fds[3], nl;
1.3 jfb 172: size_t len, tlen;
173: char *argv[4], buf[16], path[MAXPATHLEN], fpath[MAXPATHLEN], *msg;
1.1 jfb 174: FILE *fp;
1.3 jfb 175: CVSFILE *cvsfp;
1.1 jfb 176: struct stat st1, st2;
1.8 jfb 177: struct cvs_flist *files[3];
178:
179: files[0] = added;
180: files[1] = modified;
181: files[2] = removed;
1.1 jfb 182:
183: msg = NULL;
184: fds[0] = -1;
185: fds[1] = -1;
186: fds[2] = -1;
187: strlcpy(path, CVS_LOGMSG_FTMPL, sizeof(path));
188: argc = 0;
189: argv[argc++] = cvs_editor;
190: argv[argc++] = path;
191: argv[argc] = NULL;
192:
193: if ((fd = mkstemp(path)) == -1) {
194: cvs_log(LP_ERRNO, "failed to create temporary file");
195: return (NULL);
196: }
197:
198: fp = fdopen(fd, "w");
199: if (fp == NULL) {
200: cvs_log(LP_ERRNO, "failed to fdopen");
1.3 jfb 201: (void)close(fd);
202: if (unlink(path) == -1)
203: cvs_log(LP_ERRNO, "failed to unlink temporary file");
204: return (NULL);
1.8 jfb 205: }
1.1 jfb 206:
1.8 jfb 207: fprintf(fp, "\n%s %s\n%s Enter Log. Lines beginning with `%s' are "
208: "removed automatically\n%s\n", CVS_LOGMSG_PREFIX, CVS_LOGMSG_LINE,
209: CVS_LOGMSG_PREFIX, CVS_LOGMSG_PREFIX, CVS_LOGMSG_PREFIX);
210:
211: if (dir != NULL)
212: fprintf(fp, "%s Commiting in %s\n%s\n", CVS_LOGMSG_PREFIX, dir,
213: CVS_LOGMSG_PREFIX);
214:
215: for (i = 0; i < 3; i++) {
216: if (files[i] == NULL)
1.16 ! joris 217: continue;
! 218:
! 219: if (SIMPLEQ_EMPTY(files[i]))
1.8 jfb 220: continue;
221:
222: fprintf(fp, "%s %s Files:", CVS_LOGMSG_PREFIX,
223: cvs_logmsg_ops[i]);
1.3 jfb 224: nl = 1;
1.13 jfb 225: SIMPLEQ_FOREACH(cvsfp, files[i], cf_list) {
1.3 jfb 226: /* take the space into account */
227: cvs_file_getpath(cvsfp, fpath, sizeof(fpath));
228: len = strlen(fpath) + 1;
229: if (tlen + len >= 72)
230: nl = 1;
231:
232: if (nl) {
233: fprintf(fp, "\n%s\t", CVS_LOGMSG_PREFIX);
234: tlen = 8;
235: nl = 0;
236: }
237:
238: fprintf(fp, " %s", fpath);
239: tlen += len;
240: }
1.9 jfb 241: fputc('\n', fp);
1.1 jfb 242:
243: }
1.9 jfb 244: fprintf(fp, "%s %s\n", CVS_LOGMSG_PREFIX, CVS_LOGMSG_LINE);
1.1 jfb 245: (void)fflush(fp);
246:
247: if (fstat(fd, &st1) == -1) {
248: cvs_log(LP_ERRNO, "failed to stat log message file");
249:
250: (void)fclose(fp);
251: if (unlink(path) == -1)
252: cvs_log(LP_ERRNO, "failed to unlink log file %s", path);
253: return (NULL);
254: }
255:
256: for (;;) {
1.8 jfb 257: if (cvs_exec(argc, argv, fds) < 0)
1.1 jfb 258: break;
1.8 jfb 259:
1.1 jfb 260: if (fstat(fd, &st2) == -1) {
261: cvs_log(LP_ERRNO, "failed to stat log message file");
262: break;
263: }
264:
265: if (st2.st_mtime != st1.st_mtime) {
266: msg = cvs_logmsg_open(path);
267: break;
268: }
269:
270: /* nothing was entered */
271: fprintf(stderr,
1.15 xsa 272: "\nLog message unchanged or not specified\na)bort, "
1.1 jfb 273: "c)ontinue, e)dit, !)reuse this message unchanged "
274: "for remaining dirs\nAction: (continue) ");
275:
276: if (fgets(buf, sizeof(buf), stdin) == NULL) {
277: cvs_log(LP_ERRNO, "failed to read from standard input");
278: break;
279: }
280:
281: len = strlen(buf);
282: if ((len == 0) || (len > 2)) {
283: fprintf(stderr, "invalid input\n");
284: continue;
1.7 tedu 285: } else if (buf[0] == 'a') {
1.15 xsa 286: cvs_log(LP_ABORT, "aborted by user");
1.1 jfb 287: break;
288: } else if ((buf[0] == '\n') || (buf[0] == 'c')) {
289: /* empty message */
290: msg = strdup("");
291: break;
1.8 jfb 292: } else if (buf[0] == 'e')
1.1 jfb 293: continue;
1.8 jfb 294: else if (buf[0] == '!') {
1.1 jfb 295: /* XXX do something */
296: }
297: }
298:
299: (void)fclose(fp);
300: (void)close(fd);
301:
302: if (unlink(path) == -1)
303: cvs_log(LP_ERRNO, "failed to unlink log file %s", path);
304:
305: return (msg);
1.2 jfb 306: }
307:
308:
309: /*
310: * cvs_logmsg_send()
311: *
312: */
313: int
314: cvs_logmsg_send(struct cvsroot *root, const char *msg)
315: {
1.5 jfb 316: const char *mp;
317: char *np, buf[256];
1.2 jfb 318:
1.10 jfb 319: if (cvs_sendarg(root, "-m", 0) < 0) {
320: cvs_log(LP_ERR, "failed to send log message");
1.4 jfb 321: return (-1);
1.10 jfb 322: }
1.2 jfb 323:
1.5 jfb 324: for (mp = msg; mp != NULL; mp = strchr(mp, '\n')) {
325: if (*mp == '\n')
326: mp++;
1.4 jfb 327:
328: /* XXX ghetto */
1.5 jfb 329: strlcpy(buf, mp, sizeof(buf));
330: np = strchr(buf, '\n');
331: if (np != NULL)
332: *np = '\0';
1.10 jfb 333: if (cvs_sendarg(root, buf, (mp == msg) ? 0 : 1) < 0) {
334: cvs_log(LP_ERR, "failed to send log message");
1.2 jfb 335: return (-1);
1.10 jfb 336: }
1.2 jfb 337: }
338:
339: return (0);
1.1 jfb 340: }
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