1 /* $OpenBSD: modules.c,v 1.19 2015/11/05 09:48:21 nicm Exp $ */
2 /*
3 * Copyright (c) 2008 Joris Vink <joris@openbsd.org>
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18 #include <sys/types.h>
19 #include <sys/dirent.h>
20 #include <sys/resource.h>
21
22 #include <ctype.h>
23 #include <stdlib.h>
24 #include <string.h>
25
26 #include "cvs.h"
27 #include "config.h"
28
29 TAILQ_HEAD(, module_info) modules;
30
31 struct module_checkout *current_module = NULL;
32 char *module_repo_root = NULL;
33
34 void
cvs_parse_modules(void)35 cvs_parse_modules(void)
36 {
37 cvs_log(LP_TRACE, "cvs_parse_modules()");
38
39 TAILQ_INIT(&modules);
40 cvs_read_config(CVS_PATH_MODULES, modules_parse_line);
41 }
42
43 void
cvs_modules_list(void)44 cvs_modules_list(void)
45 {
46 struct module_info *mi;
47
48 TAILQ_FOREACH(mi, &modules, m_list)
49 cvs_printf("%s\n", mi->mi_str);
50 }
51
52 int
modules_parse_line(char * line,int lineno)53 modules_parse_line(char *line, int lineno)
54 {
55 int flags;
56 struct module_info *mi;
57 char *bline, *val, *p, *module, *sp, *dp;
58 char *dirname, fpath[PATH_MAX], *prog;
59
60 prog = NULL;
61 bline = xstrdup(line);
62
63 flags = 0;
64 p = val = line;
65 while (!isspace((unsigned char)*p) && *p != '\0')
66 p++;
67
68 if (*p == '\0')
69 goto bad;
70
71 *(p++) = '\0';
72 module = val;
73
74 while (isspace((unsigned char)*p))
75 p++;
76
77 if (*p == '\0')
78 goto bad;
79
80 val = p;
81 while (!isspace((unsigned char)*p) && *p != '\0')
82 p++;
83
84 while (val[0] == '-') {
85 p = val;
86 while (!isspace((unsigned char)*p) && *p != '\0')
87 p++;
88
89 if (*p == '\0')
90 goto bad;
91
92 *(p++) = '\0';
93
94 switch (val[1]) {
95 case 'a':
96 if (flags & MODULE_TARGETDIR) {
97 cvs_log(LP_NOTICE, "cannot use -a with -d");
98 goto bad;
99 }
100 flags |= MODULE_ALIAS;
101 break;
102 case 'd':
103 if (flags & MODULE_ALIAS) {
104 cvs_log(LP_NOTICE, "cannot use -d with -a");
105 goto bad;
106 }
107 flags |= MODULE_TARGETDIR;
108 break;
109 case 'l':
110 flags |= MODULE_NORECURSE;
111 break;
112 case 'o':
113 if (flags != 0 || prog != NULL) {
114 cvs_log(LP_NOTICE,
115 "-o cannot be used with other flags");
116 goto bad;
117 }
118
119 val = p;
120 while (!isspace((unsigned char)*val) && *val != '\0')
121 val++;
122 if (*val == '\0')
123 goto bad;
124
125 *(val++) = '\0';
126 prog = xstrdup(p);
127 p = val;
128 flags |= MODULE_RUN_ON_CHECKOUT;
129 break;
130 case 'i':
131 if (flags != 0 || prog != NULL) {
132 cvs_log(LP_NOTICE,
133 "-i cannot be used with other flags");
134 goto bad;
135 }
136
137 if ((val = strchr(p, ' ' )) == NULL)
138 goto bad;
139
140 *(val++) = '\0';
141 prog = xstrdup(p);
142 p = val;
143 flags |= MODULE_RUN_ON_COMMIT;
144 break;
145 default:
146 goto bad;
147 }
148
149 val = p;
150 }
151
152 if (*val == '\0')
153 goto bad;
154
155 mi = xmalloc(sizeof(*mi));
156 mi->mi_name = xstrdup(module);
157 mi->mi_flags = flags;
158 mi->mi_prog = prog;
159 mi->mi_str = bline;
160
161 dirname = NULL;
162 RB_INIT(&(mi->mi_modules));
163 RB_INIT(&(mi->mi_ignores));
164
165 for (sp = val; *sp != '\0'; sp = dp) {
166 dp = sp;
167 while (!isspace((unsigned char)*dp) && *dp != '\0')
168 dp++;
169 if (*dp != '\0')
170 *(dp++) = '\0';
171
172 if (mi->mi_flags & MODULE_ALIAS) {
173 if (sp[0] == '!') {
174 if (strlen(sp) < 2)
175 fatal("invalid ! pattern");
176 cvs_file_get((sp + 1), 0,
177 &(mi->mi_ignores), 0);
178 } else {
179 cvs_file_get(sp, 0,
180 &(mi->mi_modules), 0);
181 }
182 } else if (sp == val) {
183 dirname = sp;
184 } else {
185 if (sp[0] == '!') {
186 if (strlen(sp) < 2)
187 fatal("invalid ! pattern");
188
189 sp++;
190 (void)xsnprintf(fpath, sizeof(fpath), "%s/%s",
191 dirname, sp);
192 cvs_file_get(fpath, 0,
193 &(mi->mi_ignores), 0);
194 } else {
195 (void)xsnprintf(fpath, sizeof(fpath), "%s/%s",
196 dirname, sp);
197 cvs_file_get(fpath, 0,
198 &(mi->mi_modules), 0);
199 }
200 }
201 }
202
203 if (!(mi->mi_flags & MODULE_ALIAS) && RB_EMPTY(&(mi->mi_modules)))
204 cvs_file_get(dirname, 0, &(mi->mi_modules), 0);
205
206 TAILQ_INSERT_TAIL(&modules, mi, m_list);
207 return (0);
208
209 bad:
210 free(prog);
211 free(bline);
212 cvs_log(LP_NOTICE, "malformed line in CVSROOT/modules: %d", lineno);
213 return (0);
214 }
215
216 struct module_checkout *
cvs_module_lookup(char * name)217 cvs_module_lookup(char *name)
218 {
219 struct module_checkout *mc;
220 struct module_info *mi;
221
222 mc = xmalloc(sizeof(*mc));
223
224 TAILQ_FOREACH(mi, &modules, m_list) {
225 if (!strcmp(name, mi->mi_name)) {
226 mc->mc_modules = mi->mi_modules;
227 mc->mc_ignores = mi->mi_ignores;
228 mc->mc_canfree = 0;
229 mc->mc_name = mi->mi_name;
230 mc->mc_flags = mi->mi_flags;
231 mc->mc_prog = mi->mi_prog;
232 return (mc);
233 }
234 }
235
236 RB_INIT(&(mc->mc_modules));
237 RB_INIT(&(mc->mc_ignores));
238 cvs_file_get(name, 0, &(mc->mc_modules), 0);
239 mc->mc_canfree = 1;
240 mc->mc_name = name;
241 mc->mc_flags = MODULE_ALIAS;
242 mc->mc_prog = NULL;
243
244 return (mc);
245 }
246