1 /* Clean up working files. */
2
3 /* Copyright 1991, 1992, 1993, 1994, 1995 Paul Eggert
4 Distributed under license by the Free Software Foundation, Inc.
5
6 This file is part of RCS.
7
8 RCS is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
11 any later version.
12
13 RCS is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with RCS; see the file COPYING.
20 If not, write to the Free Software Foundation,
21 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22
23 Report problems and direct all questions to:
24
25 rcs-bugs@cs.purdue.edu
26
27 */
28
29 #include "rcsbase.h"
30
31 #if has_dirent
32 static int get_directory P((char const*,char***));
33 #endif
34
35 static int unlock P((struct hshentry *));
36 static void cleanup P((void));
37
38 static RILE *workptr;
39 static int exitstatus;
40
41 mainProg(rcscleanId, "rcsclean", "$FreeBSD$")
42 {
43 static char const usage[] =
44 "\nrcsclean: usage: rcsclean -ksubst -{nqru}[rev] -T -Vn -xsuff -zzone file ...";
45
46 static struct buf revision;
47
48 char *a, **newargv;
49 char const *rev, *p;
50 int dounlock, expmode, perform, unlocked, unlockflag, waslocked;
51 int Ttimeflag;
52 struct hshentries *deltas;
53 struct hshentry *delta;
54 struct stat workstat;
55
56 setrid();
57
58 expmode = -1;
59 rev = 0;
60 suffixes = X_DEFAULT;
61 perform = true;
62 unlockflag = false;
63 Ttimeflag = false;
64
65 argc = getRCSINIT(argc, argv, &newargv);
66 argv = newargv;
67 for (;;) {
68 if (--argc < 1) {
69 # if has_dirent
70 argc = get_directory(".", &newargv);
71 argv = newargv;
72 break;
73 # else
74 faterror("no pathnames specified");
75 # endif
76 }
77 a = *++argv;
78 if (!*a || *a++ != '-')
79 break;
80 switch (*a++) {
81 case 'k':
82 if (0 <= expmode)
83 redefined('k');
84 if ((expmode = str2expmode(a)) < 0)
85 goto unknown;
86 break;
87
88 case 'n':
89 perform = false;
90 goto handle_revision;
91
92 case 'q':
93 quietflag = true;
94 /* fall into */
95 case 'r':
96 handle_revision:
97 if (*a) {
98 if (rev)
99 warn("redefinition of revision number");
100 rev = a;
101 }
102 break;
103
104 case 'T':
105 if (*a)
106 goto unknown;
107 Ttimeflag = true;
108 break;
109
110 case 'u':
111 unlockflag = true;
112 goto handle_revision;
113
114 case 'V':
115 setRCSversion(*argv);
116 break;
117
118 case 'x':
119 suffixes = a;
120 break;
121
122 case 'z':
123 zone_set(a);
124 break;
125
126 default:
127 unknown:
128 error("unknown option: %s%s", *argv, usage);
129 }
130 }
131
132 dounlock = perform & unlockflag;
133
134 if (nerror)
135 cleanup();
136 else
137 for (; 0 < argc; cleanup(), ++argv, --argc) {
138
139 ffree();
140
141 if (!(
142 0 < pairnames(
143 argc, argv,
144 dounlock ? rcswriteopen : rcsreadopen,
145 true, true
146 ) &&
147 (workptr = Iopen(workname, FOPEN_R_WORK, &workstat))
148 ))
149 continue;
150
151 if (same_file(RCSstat, workstat, 0)) {
152 rcserror("RCS file is the same as working file %s.",
153 workname
154 );
155 continue;
156 }
157
158 gettree();
159
160 p = 0;
161 if (rev) {
162 if (!fexpandsym(rev, &revision, workptr))
163 continue;
164 p = revision.string;
165 } else if (Head)
166 switch (unlockflag ? findlock(false,&delta) : 0) {
167 default:
168 continue;
169 case 0:
170 p = Dbranch ? Dbranch : "";
171 break;
172 case 1:
173 p = delta->num;
174 break;
175 }
176 delta = 0;
177 deltas = 0; /* Keep lint happy. */
178 if (p && !(delta = genrevs(p,(char*)0,(char*)0,(char*)0,&deltas)))
179 continue;
180
181 waslocked = delta && delta->lockedby;
182 locker_expansion = unlock(delta);
183 unlocked = locker_expansion & unlockflag;
184 if (unlocked<waslocked && workstat.st_mode&(S_IWUSR|S_IWGRP|S_IWOTH))
185 continue;
186
187 if (unlocked && !checkaccesslist())
188 continue;
189
190 if (dorewrite(dounlock, unlocked) != 0)
191 continue;
192
193 if (0 <= expmode)
194 Expand = expmode;
195 else if (
196 waslocked &&
197 Expand == KEYVAL_EXPAND &&
198 WORKMODE(RCSstat.st_mode,true) == workstat.st_mode
199 )
200 Expand = KEYVALLOCK_EXPAND;
201
202 getdesc(false);
203
204 if (
205 !delta ? workstat.st_size!=0 :
206 0 < rcsfcmp(
207 workptr, &workstat,
208 buildrevision(deltas, delta, (FILE*)0, false),
209 delta
210 )
211 )
212 continue;
213
214 if (quietflag < unlocked)
215 aprintf(stdout, "rcs -u%s %s\n", delta->num, RCSname);
216
217 if (perform & unlocked) {
218 if_advise_access(deltas->first != delta, finptr, MADV_SEQUENTIAL);
219 if (donerewrite(true,
220 Ttimeflag ? RCSstat.st_mtime : (time_t)-1
221 ) != 0)
222 continue;
223 }
224
225 if (!quietflag)
226 aprintf(stdout, "rm -f %s\n", workname);
227 Izclose(&workptr);
228 if (perform && un_link(workname) != 0)
229 eerror(workname);
230
231 }
232
233 tempunlink();
234 if (!quietflag)
235 Ofclose(stdout);
236 exitmain(exitstatus);
237 }
238
239 static void
cleanup()240 cleanup()
241 {
242 if (nerror) exitstatus = EXIT_FAILURE;
243 Izclose(&finptr);
244 Izclose(&workptr);
245 Ozclose(&fcopy);
246 ORCSclose();
247 dirtempunlink();
248 }
249
250 #if RCS_lint
251 # define exiterr rcscleanExit
252 #endif
253 void
exiterr()254 exiterr()
255 {
256 ORCSerror();
257 dirtempunlink();
258 tempunlink();
259 _exit(EXIT_FAILURE);
260 }
261
262 static int
unlock(delta)263 unlock(delta)
264 struct hshentry *delta;
265 {
266 register struct rcslock **al, *l;
267
268 if (delta && delta->lockedby && strcmp(getcaller(),delta->lockedby)==0)
269 for (al = &Locks; (l = *al); al = &l->nextlock)
270 if (l->delta == delta) {
271 *al = l->nextlock;
272 delta->lockedby = 0;
273 return true;
274 }
275 return false;
276 }
277
278 #if has_dirent
279 static int
get_directory(dirname,aargv)280 get_directory(dirname, aargv)
281 char const *dirname;
282 char ***aargv;
283 /*
284 * Put a vector of all DIRNAME's directory entries names into *AARGV.
285 * Ignore names of RCS files.
286 * Yield the number of entries found. Terminate the vector with 0.
287 * Allocate the storage for the vector and entry names.
288 * Do not sort the names. Do not include '.' and '..'.
289 */
290 {
291 int i, entries = 0, entries_max = 64;
292 size_t chars = 0, chars_max = 1024;
293 size_t *offset = tnalloc(size_t, entries_max);
294 char *a = tnalloc(char, chars_max), **p;
295 DIR *d;
296 struct dirent *e;
297
298 if (!(d = opendir(dirname)))
299 efaterror(dirname);
300 while ((errno = 0, e = readdir(d))) {
301 char const *en = e->d_name;
302 size_t s = strlen(en) + 1;
303 if (en[0]=='.' && (!en[1] || (en[1]=='.' && !en[2])))
304 continue;
305 if (rcssuffix(en))
306 continue;
307 while (chars_max < s + chars)
308 a = trealloc(char, a, chars_max<<=1);
309 if (entries == entries_max)
310 offset = trealloc(size_t, offset, entries_max<<=1);
311 offset[entries++] = chars;
312 VOID strcpy(a+chars, en);
313 chars += s;
314 }
315 # if void_closedir
316 # define close_directory(d) (closedir(d), 0)
317 # else
318 # define close_directory(d) closedir(d)
319 # endif
320 if (errno || close_directory(d) != 0)
321 efaterror(dirname);
322 if (chars)
323 a = trealloc(char, a, chars);
324 else
325 tfree(a);
326 *aargv = p = tnalloc(char*, entries+1);
327 for (i=0; i<entries; i++)
328 *p++ = a + offset[i];
329 *p = 0;
330 tfree(offset);
331 return entries;
332 }
333 #endif
334