Annotation of src/usr.bin/tmux/cfg.c, Revision 1.86
1.86 ! nicm 1: /* $OpenBSD: cfg.c,v 1.85 2022/05/30 13:00:18 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:
1.86 ! nicm 55: cfg_show_causes(NULL);
1.57 nicm 56:
1.58 nicm 57: if (cfg_item != NULL)
1.74 nicm 58: cmdq_continue(cfg_item);
1.58 nicm 59:
1.57 nicm 60: status_prompt_load_history();
1.49 nicm 61:
62: return (CMD_RETURN_NORMAL);
63: }
1.40 nicm 64:
65: void
66: start_cfg(void)
67: {
1.81 nicm 68: struct client *c;
1.82 nicm 69: u_int i;
1.40 nicm 70:
1.56 nicm 71: /*
1.71 nicm 72: * Configuration files are loaded without a client, so commands are run
73: * in the global queue with item->client NULL.
1.58 nicm 74: *
75: * However, we must block the initial client (but just the initial
76: * client) so that its command runs after the configuration is loaded.
77: * Because start_cfg() is called so early, we can be sure the client's
78: * command queue is currently empty and our callback will be at the
79: * front - we need to get in before MSG_COMMAND.
1.56 nicm 80: */
1.63 nicm 81: cfg_client = c = TAILQ_FIRST(&clients);
1.58 nicm 82: if (c != NULL) {
83: cfg_item = cmdq_get_callback(cfg_client_done, NULL);
84: cmdq_append(c, cfg_item);
85: }
1.40 nicm 86:
1.82 nicm 87: for (i = 0; i < cfg_nfiles; i++) {
88: if (cfg_quiet)
89: load_cfg(cfg_files[i], c, NULL, CMD_PARSE_QUIET, NULL);
90: else
91: load_cfg(cfg_files[i], c, NULL, 0, NULL);
92: }
1.40 nicm 93:
1.56 nicm 94: cmdq_append(NULL, cmdq_get_callback(cfg_done, NULL));
1.40 nicm 95: }
1.1 nicm 96:
1.28 nicm 97: int
1.70 nicm 98: load_cfg(const char *path, struct client *c, struct cmdq_item *item, int flags,
99: struct cmdq_item **new_item)
1.1 nicm 100: {
1.50 nicm 101: FILE *f;
1.71 nicm 102: struct cmd_parse_input pi;
103: struct cmd_parse_result *pr;
1.70 nicm 104: struct cmdq_item *new_item0;
1.83 nicm 105: struct cmdq_state *state;
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_ERROR) {
128: cfg_add_cause("%s", pr->error);
129: free(pr->error);
130: return (-1);
131: }
132: if (flags & CMD_PARSE_PARSEONLY) {
133: cmd_list_free(pr->cmdlist);
134: return (0);
135: }
136:
1.83 nicm 137: if (item != NULL)
138: state = cmdq_copy_state(cmdq_get_state(item));
139: else
140: state = cmdq_new_state(NULL, NULL, 0);
141: cmdq_add_format(state, "current_file", "%s", pi.file);
142:
143: new_item0 = cmdq_get_command(pr->cmdlist, state);
1.77 nicm 144: if (item != NULL)
1.78 nicm 145: new_item0 = cmdq_insert_after(item, new_item0);
1.77 nicm 146: else
1.78 nicm 147: new_item0 = cmdq_append(NULL, new_item0);
1.77 nicm 148: cmd_list_free(pr->cmdlist);
1.83 nicm 149: cmdq_free_state(state);
1.77 nicm 150:
151: if (new_item != NULL)
152: *new_item = new_item0;
153: return (0);
154: }
155:
156: int
157: load_cfg_from_buffer(const void *buf, size_t len, const char *path,
158: struct client *c, struct cmdq_item *item, int flags,
159: struct cmdq_item **new_item)
160: {
161: struct cmd_parse_input pi;
162: struct cmd_parse_result *pr;
163: struct cmdq_item *new_item0;
1.83 nicm 164: struct cmdq_state *state;
1.77 nicm 165:
166: if (new_item != NULL)
167: *new_item = NULL;
168:
169: log_debug("loading %s", path);
170:
171: memset(&pi, 0, sizeof pi);
172: pi.flags = flags;
173: pi.file = path;
174: pi.line = 1;
175: pi.item = item;
176: pi.c = c;
177:
178: pr = cmd_parse_from_buffer(buf, len, &pi);
1.71 nicm 179: if (pr->status == CMD_PARSE_ERROR) {
180: cfg_add_cause("%s", pr->error);
181: free(pr->error);
182: return (-1);
183: }
184: if (flags & CMD_PARSE_PARSEONLY) {
185: cmd_list_free(pr->cmdlist);
186: return (0);
1.1 nicm 187: }
1.61 nicm 188:
1.83 nicm 189: if (item != NULL)
190: state = cmdq_copy_state(cmdq_get_state(item));
191: else
192: state = cmdq_new_state(NULL, NULL, 0);
193: cmdq_add_format(state, "current_file", "%s", pi.file);
194:
195: new_item0 = cmdq_get_command(pr->cmdlist, state);
1.71 nicm 196: if (item != NULL)
1.78 nicm 197: new_item0 = cmdq_insert_after(item, new_item0);
1.71 nicm 198: else
1.78 nicm 199: new_item0 = cmdq_append(NULL, new_item0);
1.71 nicm 200: cmd_list_free(pr->cmdlist);
1.83 nicm 201: cmdq_free_state(state);
1.25 nicm 202:
1.70 nicm 203: if (new_item != NULL)
1.71 nicm 204: *new_item = new_item0;
205: return (0);
1.33 nicm 206: }
207:
208: void
1.36 nicm 209: cfg_add_cause(const char *fmt, ...)
1.33 nicm 210: {
1.36 nicm 211: va_list ap;
212: char *msg;
1.33 nicm 213:
214: va_start(ap, fmt);
215: xvasprintf(&msg, fmt, ap);
1.38 nicm 216: va_end(ap);
1.33 nicm 217:
1.35 nicm 218: cfg_ncauses++;
219: cfg_causes = xreallocarray(cfg_causes, cfg_ncauses, sizeof *cfg_causes);
220: cfg_causes[cfg_ncauses - 1] = msg;
1.33 nicm 221: }
222:
223: void
1.50 nicm 224: cfg_print_causes(struct cmdq_item *item)
1.33 nicm 225: {
226: u_int i;
227:
1.35 nicm 228: for (i = 0; i < cfg_ncauses; i++) {
1.50 nicm 229: cmdq_print(item, "%s", cfg_causes[i]);
1.35 nicm 230: free(cfg_causes[i]);
1.33 nicm 231: }
1.35 nicm 232:
233: free(cfg_causes);
234: cfg_causes = NULL;
1.37 nicm 235: cfg_ncauses = 0;
1.17 nicm 236: }
237:
238: void
1.28 nicm 239: cfg_show_causes(struct session *s)
1.17 nicm 240: {
1.86 ! nicm 241: struct client *c = TAILQ_FIRST(&clients);
1.66 nicm 242: struct window_pane *wp;
243: struct window_mode_entry *wme;
244: u_int i;
1.17 nicm 245:
1.86 ! nicm 246: if (cfg_ncauses == 0)
! 247: return;
! 248:
! 249: if (c != NULL && (c->flags & CLIENT_CONTROL)) {
! 250: for (i = 0; i < cfg_ncauses; i++) {
! 251: control_write(c, "%%config-error %s", cfg_causes[i]);
! 252: free(cfg_causes[i]);
! 253: }
! 254: goto out;
! 255: }
! 256:
! 257: if (s == NULL) {
! 258: if (c != NULL && c->session != NULL)
! 259: s = c->session;
! 260: else
! 261: s = RB_MIN(sessions, &sessions);
! 262: }
! 263: if (s == NULL || s->attached == 0) /* wait for an attached session */
1.17 nicm 264: return;
265: wp = s->curw->window->active;
266:
1.66 nicm 267: wme = TAILQ_FIRST(&wp->modes);
268: if (wme == NULL || wme->mode != &window_view_mode)
1.79 nicm 269: window_pane_set_mode(wp, NULL, &window_view_mode, NULL, NULL);
1.35 nicm 270: for (i = 0; i < cfg_ncauses; i++) {
1.85 nicm 271: window_copy_add(wp, 0, "%s", cfg_causes[i]);
1.35 nicm 272: free(cfg_causes[i]);
1.17 nicm 273: }
1.35 nicm 274:
1.86 ! nicm 275: out:
1.35 nicm 276: free(cfg_causes);
277: cfg_causes = NULL;
1.37 nicm 278: cfg_ncauses = 0;
1.1 nicm 279: }
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