Annotation of src/usr.bin/tmux/cfg.c, Revision 1.74
1.74 ! nicm 1: /* $OpenBSD: cfg.c,v 1.73 2019/06/05 20:00:53 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: static char *cfg_file;
32: int cfg_finished;
33: static char **cfg_causes;
34: static u_int cfg_ncauses;
35: static struct cmdq_item *cfg_item;
36:
37: static enum cmd_retval
38: cfg_client_done(__unused struct cmdq_item *item, __unused void *data)
39: {
40: if (!cfg_finished)
41: return (CMD_RETURN_WAIT);
42: return (CMD_RETURN_NORMAL);
43: }
1.40 nicm 44:
1.49 nicm 45: static enum cmd_retval
1.50 nicm 46: cfg_done(__unused struct cmdq_item *item, __unused void *data)
1.49 nicm 47: {
48: if (cfg_finished)
49: return (CMD_RETURN_NORMAL);
50: cfg_finished = 1;
51:
52: if (!RB_EMPTY(&sessions))
53: cfg_show_causes(RB_MIN(sessions, &sessions));
1.57 nicm 54:
1.58 nicm 55: if (cfg_item != NULL)
1.74 ! nicm 56: cmdq_continue(cfg_item);
1.58 nicm 57:
1.57 nicm 58: status_prompt_load_history();
1.49 nicm 59:
60: return (CMD_RETURN_NORMAL);
61: }
1.40 nicm 62:
63: void
1.41 nicm 64: set_cfg_file(const char *path)
65: {
66: free(cfg_file);
67: cfg_file = xstrdup(path);
68: }
69:
70: void
1.40 nicm 71: start_cfg(void)
72: {
1.41 nicm 73: const char *home;
1.70 nicm 74: int flags = 0;
1.58 nicm 75: struct client *c;
1.40 nicm 76:
1.56 nicm 77: /*
1.71 nicm 78: * Configuration files are loaded without a client, so commands are run
79: * in the global queue with item->client NULL.
1.58 nicm 80: *
81: * However, we must block the initial client (but just the initial
82: * client) so that its command runs after the configuration is loaded.
83: * Because start_cfg() is called so early, we can be sure the client's
84: * command queue is currently empty and our callback will be at the
85: * front - we need to get in before MSG_COMMAND.
1.56 nicm 86: */
1.63 nicm 87: cfg_client = c = TAILQ_FIRST(&clients);
1.58 nicm 88: if (c != NULL) {
89: cfg_item = cmdq_get_callback(cfg_client_done, NULL);
90: cmdq_append(c, cfg_item);
91: }
1.40 nicm 92:
1.67 nicm 93: if (cfg_file == NULL)
1.71 nicm 94: load_cfg(TMUX_CONF, NULL, NULL, CMD_PARSE_QUIET, NULL);
1.40 nicm 95:
1.41 nicm 96: if (cfg_file == NULL && (home = find_home()) != NULL) {
97: xasprintf(&cfg_file, "%s/.tmux.conf", home);
1.71 nicm 98: flags = CMD_PARSE_QUIET;
1.41 nicm 99: }
1.45 tim 100: if (cfg_file != NULL)
1.70 nicm 101: load_cfg(cfg_file, NULL, NULL, flags, NULL);
1.40 nicm 102:
1.56 nicm 103: cmdq_append(NULL, cmdq_get_callback(cfg_done, NULL));
1.40 nicm 104: }
1.1 nicm 105:
1.28 nicm 106: int
1.70 nicm 107: load_cfg(const char *path, struct client *c, struct cmdq_item *item, int flags,
108: struct cmdq_item **new_item)
1.1 nicm 109: {
1.50 nicm 110: FILE *f;
1.71 nicm 111: struct cmd_parse_input pi;
112: struct cmd_parse_result *pr;
1.70 nicm 113: struct cmdq_item *new_item0;
1.61 nicm 114:
1.71 nicm 115: if (new_item != NULL)
116: *new_item = NULL;
1.1 nicm 117:
1.29 nicm 118: log_debug("loading %s", path);
1.1 nicm 119: if ((f = fopen(path, "rb")) == NULL) {
1.71 nicm 120: if (errno == ENOENT && (flags & CMD_PARSE_QUIET))
1.45 tim 121: return (0);
122: cfg_add_cause("%s: %s", path, strerror(errno));
1.28 nicm 123: return (-1);
1.25 nicm 124: }
125:
1.71 nicm 126: memset(&pi, 0, sizeof pi);
127: pi.flags = flags;
128: pi.file = path;
1.72 nicm 129: pi.line = 1;
1.73 nicm 130: pi.item = item;
1.13 nicm 131:
1.71 nicm 132: pr = cmd_parse_from_file(f, &pi);
133: fclose(f);
134: if (pr->status == CMD_PARSE_EMPTY)
135: return (0);
136: if (pr->status == CMD_PARSE_ERROR) {
137: cfg_add_cause("%s", pr->error);
138: free(pr->error);
139: return (-1);
140: }
141: if (flags & CMD_PARSE_PARSEONLY) {
142: cmd_list_free(pr->cmdlist);
143: return (0);
1.1 nicm 144: }
1.61 nicm 145:
1.71 nicm 146: new_item0 = cmdq_get_command(pr->cmdlist, NULL, NULL, 0);
147: if (item != NULL)
148: cmdq_insert_after(item, new_item0);
149: else
150: cmdq_append(c, new_item0);
151: cmd_list_free(pr->cmdlist);
1.25 nicm 152:
1.70 nicm 153: if (new_item != NULL)
1.71 nicm 154: *new_item = new_item0;
155: return (0);
1.33 nicm 156: }
157:
158: void
1.36 nicm 159: cfg_add_cause(const char *fmt, ...)
1.33 nicm 160: {
1.36 nicm 161: va_list ap;
162: char *msg;
1.33 nicm 163:
164: va_start(ap, fmt);
165: xvasprintf(&msg, fmt, ap);
1.38 nicm 166: va_end(ap);
1.33 nicm 167:
1.35 nicm 168: cfg_ncauses++;
169: cfg_causes = xreallocarray(cfg_causes, cfg_ncauses, sizeof *cfg_causes);
170: cfg_causes[cfg_ncauses - 1] = msg;
1.33 nicm 171: }
172:
173: void
1.50 nicm 174: cfg_print_causes(struct cmdq_item *item)
1.33 nicm 175: {
176: u_int i;
177:
1.35 nicm 178: for (i = 0; i < cfg_ncauses; i++) {
1.50 nicm 179: cmdq_print(item, "%s", cfg_causes[i]);
1.35 nicm 180: free(cfg_causes[i]);
1.33 nicm 181: }
1.35 nicm 182:
183: free(cfg_causes);
184: cfg_causes = NULL;
1.37 nicm 185: cfg_ncauses = 0;
1.17 nicm 186: }
187:
188: void
1.28 nicm 189: cfg_show_causes(struct session *s)
1.17 nicm 190: {
1.66 nicm 191: struct window_pane *wp;
192: struct window_mode_entry *wme;
193: u_int i;
1.17 nicm 194:
1.35 nicm 195: if (s == NULL || cfg_ncauses == 0)
1.17 nicm 196: return;
197: wp = s->curw->window->active;
198:
1.66 nicm 199: wme = TAILQ_FIRST(&wp->modes);
200: if (wme == NULL || wme->mode != &window_view_mode)
1.65 nicm 201: window_pane_set_mode(wp, &window_view_mode, NULL, NULL);
1.35 nicm 202: for (i = 0; i < cfg_ncauses; i++) {
203: window_copy_add(wp, "%s", cfg_causes[i]);
204: free(cfg_causes[i]);
1.17 nicm 205: }
1.35 nicm 206:
207: free(cfg_causes);
208: cfg_causes = NULL;
1.37 nicm 209: cfg_ncauses = 0;
1.1 nicm 210: }
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