Annotation of src/usr.bin/cvs/logmsg.c, Revision 1.8
1.8 ! jfb 1: /* $OpenBSD: logmsg.c,v 1.7 2004/12/07 17:10:56 tedu 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>
33: #include <unistd.h>
34: #include <string.h>
35:
36: #include "cvs.h"
37: #include "log.h"
38: #include "buf.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);
1.7 tedu 115: if (bp == NULL)
1.1 jfb 116: return (NULL);
117:
118: /* lcont is used to tell if a buffer returned by fgets is a start
119: * of line or just line continuation because the buffer isn't
120: * large enough to hold the entire line.
121: */
122: lcont = 0;
123:
124: while (fgets(lbuf, sizeof(lbuf), fp) != NULL) {
125: len = strlen(lbuf);
126: if (len == 0)
127: continue;
1.3 jfb 128: else if ((lcont == 0) && (strncmp(lbuf, CVS_LOGMSG_PREFIX,
129: strlen(CVS_LOGMSG_PREFIX)) == 0))
1.1 jfb 130: /* skip lines starting with the prefix */
131: continue;
132:
133: cvs_buf_append(bp, lbuf, strlen(lbuf));
134:
135: lcont = (lbuf[len - 1] == '\n') ? 0 : 1;
136: }
137: cvs_buf_putc(bp, '\0');
138:
139: msg = (char *)cvs_buf_release(bp);
140:
141: return (msg);
142: }
143:
144:
145: /*
146: * cvs_logmsg_get()
147: *
1.8 ! jfb 148: * Get a log message by forking and executing the user's editor. The <dir>
! 149: * argument is a relative path to the directory for which the log message
! 150: * applies, and the 3 tail queue arguemnts contains all the files for which the
! 151: * log message will apply. Any of these arguments can be set to NULL in the
! 152: * case where there is no information to display.
1.1 jfb 153: * Returns the message in a dynamically allocated string on success, NULL on
154: * failure.
155: */
156: char*
1.8 ! jfb 157: cvs_logmsg_get(const char *dir, struct cvs_flist *added,
! 158: struct cvs_flist *modified, struct cvs_flist *removed)
1.1 jfb 159: {
1.8 ! jfb 160: int i, fd, argc, fds[3], nl;
1.3 jfb 161: size_t len, tlen;
162: char *argv[4], buf[16], path[MAXPATHLEN], fpath[MAXPATHLEN], *msg;
1.1 jfb 163: FILE *fp;
1.3 jfb 164: CVSFILE *cvsfp;
1.1 jfb 165: struct stat st1, st2;
1.8 ! jfb 166: struct cvs_flist *files[3];
! 167:
! 168: files[0] = added;
! 169: files[1] = modified;
! 170: files[2] = removed;
1.1 jfb 171:
172: msg = NULL;
173: fds[0] = -1;
174: fds[1] = -1;
175: fds[2] = -1;
176: strlcpy(path, CVS_LOGMSG_FTMPL, sizeof(path));
177: argc = 0;
178: argv[argc++] = cvs_editor;
179: argv[argc++] = path;
180: argv[argc] = NULL;
181:
182: if ((fd = mkstemp(path)) == -1) {
183: cvs_log(LP_ERRNO, "failed to create temporary file");
184: return (NULL);
185: }
186:
187: fp = fdopen(fd, "w");
188: if (fp == NULL) {
189: cvs_log(LP_ERRNO, "failed to fdopen");
1.3 jfb 190: (void)close(fd);
191: if (unlink(path) == -1)
192: cvs_log(LP_ERRNO, "failed to unlink temporary file");
193: return (NULL);
1.8 ! jfb 194: }
1.1 jfb 195:
1.8 ! jfb 196: fprintf(fp, "\n%s %s\n%s Enter Log. Lines beginning with `%s' are "
! 197: "removed automatically\n%s\n", CVS_LOGMSG_PREFIX, CVS_LOGMSG_LINE,
! 198: CVS_LOGMSG_PREFIX, CVS_LOGMSG_PREFIX, CVS_LOGMSG_PREFIX);
! 199:
! 200: if (dir != NULL)
! 201: fprintf(fp, "%s Commiting in %s\n%s\n", CVS_LOGMSG_PREFIX, dir,
! 202: CVS_LOGMSG_PREFIX);
! 203:
! 204: for (i = 0; i < 3; i++) {
! 205: if (files[i] == NULL)
! 206: continue;
! 207:
! 208: fprintf(fp, "%s %s Files:", CVS_LOGMSG_PREFIX,
! 209: cvs_logmsg_ops[i]);
1.3 jfb 210: nl = 1;
1.8 ! jfb 211: TAILQ_FOREACH(cvsfp, files[i], cf_list) {
1.3 jfb 212: /* take the space into account */
213: cvs_file_getpath(cvsfp, fpath, sizeof(fpath));
214: len = strlen(fpath) + 1;
215: if (tlen + len >= 72)
216: nl = 1;
217:
218: if (nl) {
219: fprintf(fp, "\n%s\t", CVS_LOGMSG_PREFIX);
220: tlen = 8;
221: nl = 0;
222: }
223:
224: fprintf(fp, " %s", fpath);
225: tlen += len;
226: }
1.1 jfb 227:
1.8 ! jfb 228: fprintf(fp, "\n%s %s\n", CVS_LOGMSG_PREFIX, CVS_LOGMSG_LINE);
1.1 jfb 229: }
230: (void)fflush(fp);
231:
232: if (fstat(fd, &st1) == -1) {
233: cvs_log(LP_ERRNO, "failed to stat log message file");
234:
235: (void)fclose(fp);
236: if (unlink(path) == -1)
237: cvs_log(LP_ERRNO, "failed to unlink log file %s", path);
238: return (NULL);
239: }
240:
241: for (;;) {
1.8 ! jfb 242: if (cvs_exec(argc, argv, fds) < 0)
1.1 jfb 243: break;
1.8 ! jfb 244:
1.1 jfb 245: if (fstat(fd, &st2) == -1) {
246: cvs_log(LP_ERRNO, "failed to stat log message file");
247: break;
248: }
249:
250: if (st2.st_mtime != st1.st_mtime) {
251: msg = cvs_logmsg_open(path);
252: break;
253: }
254:
255: /* nothing was entered */
256: fprintf(stderr,
257: "Log message unchanged or not specified\na)bort, "
258: "c)ontinue, e)dit, !)reuse this message unchanged "
259: "for remaining dirs\nAction: (continue) ");
260:
261: if (fgets(buf, sizeof(buf), stdin) == NULL) {
262: cvs_log(LP_ERRNO, "failed to read from standard input");
263: break;
264: }
265:
266: len = strlen(buf);
267: if ((len == 0) || (len > 2)) {
268: fprintf(stderr, "invalid input\n");
269: continue;
1.7 tedu 270: } else if (buf[0] == 'a') {
1.1 jfb 271: cvs_log(LP_ERR, "aborted by user");
272: break;
273: } else if ((buf[0] == '\n') || (buf[0] == 'c')) {
274: /* empty message */
275: msg = strdup("");
276: break;
1.8 ! jfb 277: } else if (buf[0] == 'e')
1.1 jfb 278: continue;
1.8 ! jfb 279: else if (buf[0] == '!') {
1.1 jfb 280: /* XXX do something */
281: }
282: }
283:
284: (void)fclose(fp);
285: (void)close(fd);
286:
287: if (unlink(path) == -1)
288: cvs_log(LP_ERRNO, "failed to unlink log file %s", path);
289:
290: return (msg);
1.2 jfb 291: }
292:
293:
294: /*
295: * cvs_logmsg_send()
296: *
297: */
298: int
299: cvs_logmsg_send(struct cvsroot *root, const char *msg)
300: {
1.5 jfb 301: const char *mp;
302: char *np, buf[256];
1.2 jfb 303:
1.4 jfb 304: if (cvs_sendarg(root, "-m", 0) < 0)
305: return (-1);
1.2 jfb 306:
1.5 jfb 307: for (mp = msg; mp != NULL; mp = strchr(mp, '\n')) {
308: if (*mp == '\n')
309: mp++;
1.4 jfb 310:
311: /* XXX ghetto */
1.5 jfb 312: strlcpy(buf, mp, sizeof(buf));
313: np = strchr(buf, '\n');
314: if (np != NULL)
315: *np = '\0';
316: if (cvs_sendarg(root, buf, (mp == msg) ? 0 : 1) < 0)
1.2 jfb 317: return (-1);
318: }
319:
320: return (0);
1.1 jfb 321: }
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