Annotation of src/usr.bin/tmux/cfg.c, Revision 1.82
1.82 ! nicm 1: /* $OpenBSD: cfg.c,v 1.81 2020/05/16 14:26:33 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>
1.32 tobias 26: #include <util.h>
1.1 nicm 27:
28: #include "tmux.h"
29:
1.63 nicm 30: struct client *cfg_client;
1.58 nicm 31: int cfg_finished;
32: static char **cfg_causes;
33: static u_int cfg_ncauses;
34: static struct cmdq_item *cfg_item;
35:
1.82 ! nicm 36: int cfg_quiet = 1;
! 37: char **cfg_files;
! 38: u_int cfg_nfiles;
! 39:
1.58 nicm 40: static enum cmd_retval
41: cfg_client_done(__unused struct cmdq_item *item, __unused void *data)
42: {
43: if (!cfg_finished)
44: return (CMD_RETURN_WAIT);
45: return (CMD_RETURN_NORMAL);
46: }
1.40 nicm 47:
1.49 nicm 48: static enum cmd_retval
1.50 nicm 49: cfg_done(__unused struct cmdq_item *item, __unused void *data)
1.49 nicm 50: {
51: if (cfg_finished)
52: return (CMD_RETURN_NORMAL);
53: cfg_finished = 1;
54:
55: if (!RB_EMPTY(&sessions))
56: cfg_show_causes(RB_MIN(sessions, &sessions));
1.57 nicm 57:
1.58 nicm 58: if (cfg_item != NULL)
1.74 nicm 59: cmdq_continue(cfg_item);
1.58 nicm 60:
1.57 nicm 61: status_prompt_load_history();
1.49 nicm 62:
63: return (CMD_RETURN_NORMAL);
64: }
1.40 nicm 65:
66: void
67: start_cfg(void)
68: {
1.81 nicm 69: struct client *c;
1.82 ! nicm 70: u_int i;
1.40 nicm 71:
1.56 nicm 72: /*
1.71 nicm 73: * Configuration files are loaded without a client, so commands are run
74: * in the global queue with item->client NULL.
1.58 nicm 75: *
76: * However, we must block the initial client (but just the initial
77: * client) so that its command runs after the configuration is loaded.
78: * Because start_cfg() is called so early, we can be sure the client's
79: * command queue is currently empty and our callback will be at the
80: * front - we need to get in before MSG_COMMAND.
1.56 nicm 81: */
1.63 nicm 82: cfg_client = c = TAILQ_FIRST(&clients);
1.58 nicm 83: if (c != NULL) {
84: cfg_item = cmdq_get_callback(cfg_client_done, NULL);
85: cmdq_append(c, cfg_item);
86: }
1.40 nicm 87:
1.82 ! nicm 88: for (i = 0; i < cfg_nfiles; i++) {
! 89: if (cfg_quiet)
! 90: load_cfg(cfg_files[i], c, NULL, CMD_PARSE_QUIET, NULL);
! 91: else
! 92: load_cfg(cfg_files[i], c, NULL, 0, NULL);
! 93: }
1.40 nicm 94:
1.56 nicm 95: cmdq_append(NULL, cmdq_get_callback(cfg_done, NULL));
1.40 nicm 96: }
1.1 nicm 97:
1.28 nicm 98: int
1.70 nicm 99: load_cfg(const char *path, struct client *c, struct cmdq_item *item, int flags,
100: struct cmdq_item **new_item)
1.1 nicm 101: {
1.50 nicm 102: FILE *f;
1.71 nicm 103: struct cmd_parse_input pi;
104: struct cmd_parse_result *pr;
1.70 nicm 105: struct cmdq_item *new_item0;
1.61 nicm 106:
1.71 nicm 107: if (new_item != NULL)
108: *new_item = NULL;
1.1 nicm 109:
1.29 nicm 110: log_debug("loading %s", path);
1.1 nicm 111: if ((f = fopen(path, "rb")) == NULL) {
1.71 nicm 112: if (errno == ENOENT && (flags & CMD_PARSE_QUIET))
1.45 tim 113: return (0);
114: cfg_add_cause("%s: %s", path, strerror(errno));
1.28 nicm 115: return (-1);
1.25 nicm 116: }
117:
1.71 nicm 118: memset(&pi, 0, sizeof pi);
119: pi.flags = flags;
120: pi.file = path;
1.72 nicm 121: pi.line = 1;
1.73 nicm 122: pi.item = item;
1.75 nicm 123: pi.c = c;
1.13 nicm 124:
1.71 nicm 125: pr = cmd_parse_from_file(f, &pi);
126: fclose(f);
1.77 nicm 127: if (pr->status == CMD_PARSE_EMPTY)
128: return (0);
129: if (pr->status == CMD_PARSE_ERROR) {
130: cfg_add_cause("%s", pr->error);
131: free(pr->error);
132: return (-1);
133: }
134: if (flags & CMD_PARSE_PARSEONLY) {
135: cmd_list_free(pr->cmdlist);
136: return (0);
137: }
138:
1.80 nicm 139: new_item0 = cmdq_get_command(pr->cmdlist, NULL);
1.77 nicm 140: if (item != NULL)
1.78 nicm 141: new_item0 = cmdq_insert_after(item, new_item0);
1.77 nicm 142: else
1.78 nicm 143: new_item0 = cmdq_append(NULL, new_item0);
1.77 nicm 144: cmd_list_free(pr->cmdlist);
145:
146: if (new_item != NULL)
147: *new_item = new_item0;
148: return (0);
149: }
150:
151: int
152: load_cfg_from_buffer(const void *buf, size_t len, const char *path,
153: struct client *c, struct cmdq_item *item, int flags,
154: struct cmdq_item **new_item)
155: {
156: struct cmd_parse_input pi;
157: struct cmd_parse_result *pr;
158: struct cmdq_item *new_item0;
159:
160: if (new_item != NULL)
161: *new_item = NULL;
162:
163: log_debug("loading %s", path);
164:
165: memset(&pi, 0, sizeof pi);
166: pi.flags = flags;
167: pi.file = path;
168: pi.line = 1;
169: pi.item = item;
170: pi.c = c;
171:
172: pr = cmd_parse_from_buffer(buf, len, &pi);
1.71 nicm 173: if (pr->status == CMD_PARSE_EMPTY)
174: return (0);
175: if (pr->status == CMD_PARSE_ERROR) {
176: cfg_add_cause("%s", pr->error);
177: free(pr->error);
178: return (-1);
179: }
180: if (flags & CMD_PARSE_PARSEONLY) {
181: cmd_list_free(pr->cmdlist);
182: return (0);
1.1 nicm 183: }
1.61 nicm 184:
1.80 nicm 185: new_item0 = cmdq_get_command(pr->cmdlist, NULL);
1.71 nicm 186: if (item != NULL)
1.78 nicm 187: new_item0 = cmdq_insert_after(item, new_item0);
1.71 nicm 188: else
1.78 nicm 189: new_item0 = cmdq_append(NULL, new_item0);
1.71 nicm 190: cmd_list_free(pr->cmdlist);
1.25 nicm 191:
1.70 nicm 192: if (new_item != NULL)
1.71 nicm 193: *new_item = new_item0;
194: return (0);
1.33 nicm 195: }
196:
197: void
1.36 nicm 198: cfg_add_cause(const char *fmt, ...)
1.33 nicm 199: {
1.36 nicm 200: va_list ap;
201: char *msg;
1.33 nicm 202:
203: va_start(ap, fmt);
204: xvasprintf(&msg, fmt, ap);
1.38 nicm 205: va_end(ap);
1.33 nicm 206:
1.35 nicm 207: cfg_ncauses++;
208: cfg_causes = xreallocarray(cfg_causes, cfg_ncauses, sizeof *cfg_causes);
209: cfg_causes[cfg_ncauses - 1] = msg;
1.33 nicm 210: }
211:
212: void
1.50 nicm 213: cfg_print_causes(struct cmdq_item *item)
1.33 nicm 214: {
215: u_int i;
216:
1.35 nicm 217: for (i = 0; i < cfg_ncauses; i++) {
1.50 nicm 218: cmdq_print(item, "%s", cfg_causes[i]);
1.35 nicm 219: free(cfg_causes[i]);
1.33 nicm 220: }
1.35 nicm 221:
222: free(cfg_causes);
223: cfg_causes = NULL;
1.37 nicm 224: cfg_ncauses = 0;
1.17 nicm 225: }
226:
227: void
1.28 nicm 228: cfg_show_causes(struct session *s)
1.17 nicm 229: {
1.66 nicm 230: struct window_pane *wp;
231: struct window_mode_entry *wme;
232: u_int i;
1.17 nicm 233:
1.35 nicm 234: if (s == NULL || cfg_ncauses == 0)
1.17 nicm 235: return;
236: wp = s->curw->window->active;
237:
1.66 nicm 238: wme = TAILQ_FIRST(&wp->modes);
239: if (wme == NULL || wme->mode != &window_view_mode)
1.79 nicm 240: window_pane_set_mode(wp, NULL, &window_view_mode, NULL, NULL);
1.35 nicm 241: for (i = 0; i < cfg_ncauses; i++) {
242: window_copy_add(wp, "%s", cfg_causes[i]);
243: free(cfg_causes[i]);
1.17 nicm 244: }
1.35 nicm 245:
246: free(cfg_causes);
247: cfg_causes = NULL;
1.37 nicm 248: cfg_ncauses = 0;
1.1 nicm 249: }
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