mirror of
https://github.com/tmux/tmux.git
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246 lines
5.4 KiB
C
246 lines
5.4 KiB
C
/* $OpenBSD$ */
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/*
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* Copyright (c) 2008 Nicholas Marriott <nicholas.marriott@gmail.com>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <ctype.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "tmux.h"
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static char *cfg_file;
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int cfg_finished;
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static char **cfg_causes;
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static u_int cfg_ncauses;
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static struct cmdq_item *cfg_item;
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static enum cmd_retval
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cfg_client_done(__unused struct cmdq_item *item, __unused void *data)
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{
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if (!cfg_finished)
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return (CMD_RETURN_WAIT);
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return (CMD_RETURN_NORMAL);
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}
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static enum cmd_retval
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cfg_done(__unused struct cmdq_item *item, __unused void *data)
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{
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if (cfg_finished)
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return (CMD_RETURN_NORMAL);
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cfg_finished = 1;
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if (!RB_EMPTY(&sessions))
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cfg_show_causes(RB_MIN(sessions, &sessions));
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if (cfg_item != NULL)
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cfg_item->flags &= ~CMDQ_WAITING;
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status_prompt_load_history();
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return (CMD_RETURN_NORMAL);
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}
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void
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set_cfg_file(const char *path)
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{
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free(cfg_file);
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cfg_file = xstrdup(path);
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}
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void
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start_cfg(void)
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{
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const char *home;
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int quiet = 0;
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struct client *c;
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/*
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* Configuration files are loaded without a client, so NULL is passed
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* into load_cfg() and commands run in the global queue with
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* item->client NULL.
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*
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* However, we must block the initial client (but just the initial
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* client) so that its command runs after the configuration is loaded.
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* Because start_cfg() is called so early, we can be sure the client's
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* command queue is currently empty and our callback will be at the
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* front - we need to get in before MSG_COMMAND.
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*/
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c = TAILQ_FIRST(&clients);
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if (c != NULL) {
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cfg_item = cmdq_get_callback(cfg_client_done, NULL);
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cmdq_append(c, cfg_item);
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}
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load_cfg(TMUX_CONF, NULL, NULL, 1);
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if (cfg_file == NULL && (home = find_home()) != NULL) {
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xasprintf(&cfg_file, "%s/.tmux.conf", home);
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quiet = 1;
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}
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if (cfg_file != NULL)
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load_cfg(cfg_file, NULL, NULL, quiet);
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cmdq_append(NULL, cmdq_get_callback(cfg_done, NULL));
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}
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int
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load_cfg(const char *path, struct client *c, struct cmdq_item *item, int quiet)
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{
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FILE *f;
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const char delim[3] = { '\\', '\\', '\0' };
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u_int found = 0;
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size_t line = 0;
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char *buf, *cause1, *p, *q, *s;
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struct cmd_list *cmdlist;
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struct cmdq_item *new_item;
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int condition = 0;
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struct format_tree *ft;
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log_debug("loading %s", path);
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if ((f = fopen(path, "rb")) == NULL) {
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if (errno == ENOENT && quiet)
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return (0);
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cfg_add_cause("%s: %s", path, strerror(errno));
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return (-1);
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}
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while ((buf = fparseln(f, NULL, &line, delim, 0)) != NULL) {
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log_debug("%s: %s", path, buf);
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p = buf;
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while (isspace((u_char)*p))
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p++;
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if (*p == '\0') {
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free(buf);
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continue;
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}
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q = p + strlen(p) - 1;
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while (q != p && isspace((u_char)*q))
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*q-- = '\0';
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if (condition != 0 && strcmp(p, "%endif") == 0) {
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condition = 0;
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continue;
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}
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if (strncmp(p, "%if ", 4) == 0) {
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if (condition != 0) {
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cfg_add_cause("%s:%zu: nested %%if", path,
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line);
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continue;
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}
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ft = format_create(NULL, NULL, FORMAT_NONE,
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FORMAT_NOJOBS);
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s = p + 3;
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while (isspace((u_char)*s))
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s++;
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s = format_expand(ft, s);
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if (*s != '\0' && (s[0] != '0' || s[1] != '\0'))
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condition = 1;
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else
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condition = -1;
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free(s);
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format_free(ft);
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continue;
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}
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if (condition == -1)
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continue;
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cmdlist = cmd_string_parse(p, path, line, &cause1);
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if (cmdlist == NULL) {
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free(buf);
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if (cause1 == NULL)
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continue;
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cfg_add_cause("%s:%zu: %s", path, line, cause1);
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free(cause1);
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continue;
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}
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free(buf);
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if (cmdlist == NULL)
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continue;
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new_item = cmdq_get_command(cmdlist, NULL, NULL, 0);
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if (item != NULL)
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cmdq_insert_after(item, new_item);
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else
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cmdq_append(c, new_item);
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cmd_list_free(cmdlist);
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found++;
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}
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fclose(f);
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return (found);
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}
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void
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cfg_add_cause(const char *fmt, ...)
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{
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va_list ap;
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char *msg;
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va_start(ap, fmt);
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xvasprintf(&msg, fmt, ap);
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va_end(ap);
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cfg_ncauses++;
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cfg_causes = xreallocarray(cfg_causes, cfg_ncauses, sizeof *cfg_causes);
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cfg_causes[cfg_ncauses - 1] = msg;
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}
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void
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cfg_print_causes(struct cmdq_item *item)
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{
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u_int i;
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for (i = 0; i < cfg_ncauses; i++) {
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cmdq_print(item, "%s", cfg_causes[i]);
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free(cfg_causes[i]);
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}
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free(cfg_causes);
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cfg_causes = NULL;
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cfg_ncauses = 0;
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}
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void
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cfg_show_causes(struct session *s)
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{
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struct window_pane *wp;
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u_int i;
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if (s == NULL || cfg_ncauses == 0)
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return;
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wp = s->curw->window->active;
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window_pane_set_mode(wp, &window_copy_mode, NULL, NULL);
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window_copy_init_for_output(wp);
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for (i = 0; i < cfg_ncauses; i++) {
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window_copy_add(wp, "%s", cfg_causes[i]);
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free(cfg_causes[i]);
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}
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free(cfg_causes);
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cfg_causes = NULL;
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cfg_ncauses = 0;
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}
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