Annotation of src/usr.bin/tmux/cfg.c, Revision 1.54
1.54 ! nicm 1: /* $OpenBSD: cfg.c,v 1.53 2017/01/15 22:00:56 nicm Exp $ */
1.1 nicm 2:
3: /*
1.44 nicm 4: * Copyright (c) 2008 Nicholas Marriott <nicholas.marriott@gmail.com>
1.1 nicm 5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15: * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16: * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18:
19: #include <sys/types.h>
20:
1.21 nicm 21: #include <ctype.h>
1.1 nicm 22: #include <errno.h>
23: #include <stdio.h>
1.15 nicm 24: #include <stdlib.h>
1.1 nicm 25: #include <string.h>
1.40 nicm 26: #include <unistd.h>
1.32 tobias 27: #include <util.h>
1.1 nicm 28:
29: #include "tmux.h"
30:
1.51 nicm 31: char *cfg_file;
32: int cfg_finished;
33: static char **cfg_causes;
34: static u_int cfg_ncauses;
35: struct client *cfg_client;
1.40 nicm 36:
1.49 nicm 37: static enum cmd_retval
1.50 nicm 38: cfg_done(__unused struct cmdq_item *item, __unused void *data)
1.49 nicm 39: {
40: if (cfg_finished)
41: return (CMD_RETURN_NORMAL);
42: cfg_finished = 1;
43:
44: if (!RB_EMPTY(&sessions))
45: cfg_show_causes(RB_MIN(sessions, &sessions));
46:
47: if (cfg_client != NULL)
48: server_client_unref(cfg_client);
49: return (CMD_RETURN_NORMAL);
50: }
1.40 nicm 51:
52: void
1.41 nicm 53: set_cfg_file(const char *path)
54: {
55: free(cfg_file);
56: cfg_file = xstrdup(path);
57: }
58:
59: void
1.40 nicm 60: start_cfg(void)
61: {
1.41 nicm 62: const char *home;
1.45 tim 63: int quiet = 0;
1.40 nicm 64:
65: cfg_client = TAILQ_FIRST(&clients);
66: if (cfg_client != NULL)
67: cfg_client->references++;
68:
1.49 nicm 69: load_cfg(TMUX_CONF, cfg_client, NULL, 1);
1.40 nicm 70:
1.41 nicm 71: if (cfg_file == NULL && (home = find_home()) != NULL) {
72: xasprintf(&cfg_file, "%s/.tmux.conf", home);
1.45 tim 73: quiet = 1;
1.41 nicm 74: }
1.45 tim 75: if (cfg_file != NULL)
1.49 nicm 76: load_cfg(cfg_file, cfg_client, NULL, quiet);
1.40 nicm 77:
1.49 nicm 78: cmdq_append(cfg_client, cmdq_get_callback(cfg_done, NULL));
1.40 nicm 79: }
1.1 nicm 80:
1.28 nicm 81: int
1.50 nicm 82: load_cfg(const char *path, struct client *c, struct cmdq_item *item, int quiet)
1.1 nicm 83: {
1.50 nicm 84: FILE *f;
1.52 nicm 85: const char delim[3] = { '\\', '\\', '\0' };
86: u_int found = 0;
1.50 nicm 87: size_t line = 0;
1.52 nicm 88: char *buf, *cause1, *p, *q, *s;
1.50 nicm 89: struct cmd_list *cmdlist;
90: struct cmdq_item *new_item;
1.52 nicm 91: int condition = 0;
92: struct format_tree *ft;
1.1 nicm 93:
1.29 nicm 94: log_debug("loading %s", path);
1.1 nicm 95: if ((f = fopen(path, "rb")) == NULL) {
1.45 tim 96: if (errno == ENOENT && quiet)
97: return (0);
98: cfg_add_cause("%s: %s", path, strerror(errno));
1.28 nicm 99: return (-1);
1.25 nicm 100: }
101:
1.42 nicm 102: while ((buf = fparseln(f, NULL, &line, delim, 0)) != NULL) {
1.32 tobias 103: log_debug("%s: %s", path, buf);
1.13 nicm 104:
1.32 tobias 105: p = buf;
1.52 nicm 106: while (isspace((u_char)*p))
1.32 tobias 107: p++;
108: if (*p == '\0') {
109: free(buf);
1.21 nicm 110: continue;
1.22 nicm 111: }
1.52 nicm 112: q = p + strlen(p) - 1;
113: while (q != p && isspace((u_char)*q))
114: *q-- = '\0';
115:
116: if (condition != 0 && strcmp(p, "%endif") == 0) {
117: condition = 0;
118: continue;
119: }
120: if (strncmp(p, "%if ", 4) == 0) {
121: if (condition != 0) {
122: cfg_add_cause("%s:%zu: nested %%if", path,
123: line);
124: continue;
125: }
1.54 ! nicm 126: ft = format_create(NULL, FORMAT_NONE, FORMAT_NOJOBS);
1.52 nicm 127:
128: s = p + 3;
129: while (isspace((u_char)*s))
130: s++;
131: s = format_expand(ft, s);
132: if (*s != '\0' && (s[0] != '0' || s[1] != '\0'))
133: condition = 1;
134: else
135: condition = -1;
136: free(s);
137:
138: format_free(ft);
139: continue;
140: }
141: if (condition == -1)
142: continue;
1.21 nicm 143:
1.53 nicm 144: cmdlist = cmd_string_parse(p, path, line, &cause1);
145: if (cmdlist == NULL) {
1.32 tobias 146: free(buf);
1.28 nicm 147: if (cause1 == NULL)
1.1 nicm 148: continue;
1.33 nicm 149: cfg_add_cause("%s:%zu: %s", path, line, cause1);
1.28 nicm 150: free(cause1);
1.9 nicm 151: continue;
1.20 nicm 152: }
1.32 tobias 153: free(buf);
1.28 nicm 154:
1.1 nicm 155: if (cmdlist == NULL)
156: continue;
1.50 nicm 157: new_item = cmdq_get_command(cmdlist, NULL, NULL, 0);
158: if (item != NULL)
159: cmdq_insert_after(item, new_item);
1.49 nicm 160: else
1.50 nicm 161: cmdq_append(c, new_item);
1.1 nicm 162: cmd_list_free(cmdlist);
1.49 nicm 163:
1.28 nicm 164: found++;
1.1 nicm 165: }
166: fclose(f);
1.25 nicm 167:
1.28 nicm 168: return (found);
1.33 nicm 169: }
170:
171: void
1.36 nicm 172: cfg_add_cause(const char *fmt, ...)
1.33 nicm 173: {
1.36 nicm 174: va_list ap;
175: char *msg;
1.33 nicm 176:
177: va_start(ap, fmt);
178: xvasprintf(&msg, fmt, ap);
1.38 nicm 179: va_end(ap);
1.33 nicm 180:
1.35 nicm 181: cfg_ncauses++;
182: cfg_causes = xreallocarray(cfg_causes, cfg_ncauses, sizeof *cfg_causes);
183: cfg_causes[cfg_ncauses - 1] = msg;
1.33 nicm 184: }
185:
186: void
1.50 nicm 187: cfg_print_causes(struct cmdq_item *item)
1.33 nicm 188: {
189: u_int i;
190:
1.35 nicm 191: for (i = 0; i < cfg_ncauses; i++) {
1.50 nicm 192: cmdq_print(item, "%s", cfg_causes[i]);
1.35 nicm 193: free(cfg_causes[i]);
1.33 nicm 194: }
1.35 nicm 195:
196: free(cfg_causes);
197: cfg_causes = NULL;
1.37 nicm 198: cfg_ncauses = 0;
1.17 nicm 199: }
200:
201: void
1.28 nicm 202: cfg_show_causes(struct session *s)
1.17 nicm 203: {
204: struct window_pane *wp;
205: u_int i;
206:
1.35 nicm 207: if (s == NULL || cfg_ncauses == 0)
1.17 nicm 208: return;
209: wp = s->curw->window->active;
210:
211: window_pane_set_mode(wp, &window_copy_mode);
212: window_copy_init_for_output(wp);
1.35 nicm 213: for (i = 0; i < cfg_ncauses; i++) {
214: window_copy_add(wp, "%s", cfg_causes[i]);
215: free(cfg_causes[i]);
1.17 nicm 216: }
1.35 nicm 217:
218: free(cfg_causes);
219: cfg_causes = NULL;
1.37 nicm 220: cfg_ncauses = 0;
1.1 nicm 221: }
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