mirror of
https://github.com/tmux/tmux.git
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265 lines
6.1 KiB
C
265 lines
6.1 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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struct client *cfg_client;
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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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int cfg_quiet = 1;
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char **cfg_files;
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u_int cfg_nfiles;
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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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cmdq_continue(cfg_item);
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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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start_cfg(void)
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{
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struct client *c;
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u_int i;
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/*
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* Configuration files are loaded without a client, so commands are run
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* in the global queue with 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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cfg_client = 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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for (i = 0; i < cfg_nfiles; i++) {
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if (cfg_quiet)
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load_cfg(cfg_files[i], c, NULL, CMD_PARSE_QUIET, NULL);
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else
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load_cfg(cfg_files[i], c, NULL, 0, NULL);
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}
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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 flags,
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struct cmdq_item **new_item)
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{
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FILE *f;
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struct cmd_parse_input pi;
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struct cmd_parse_result *pr;
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struct cmdq_item *new_item0;
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struct cmdq_state *state;
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if (new_item != NULL)
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*new_item = NULL;
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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 && (flags & CMD_PARSE_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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memset(&pi, 0, sizeof pi);
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pi.flags = flags;
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pi.file = path;
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pi.line = 1;
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pi.item = item;
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pi.c = c;
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pr = cmd_parse_from_file(f, &pi);
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fclose(f);
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if (pr->status == CMD_PARSE_EMPTY)
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return (0);
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if (pr->status == CMD_PARSE_ERROR) {
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cfg_add_cause("%s", pr->error);
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free(pr->error);
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return (-1);
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}
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if (flags & CMD_PARSE_PARSEONLY) {
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cmd_list_free(pr->cmdlist);
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return (0);
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}
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if (item != NULL)
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state = cmdq_copy_state(cmdq_get_state(item));
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else
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state = cmdq_new_state(NULL, NULL, 0);
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cmdq_add_format(state, "current_file", "%s", pi.file);
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new_item0 = cmdq_get_command(pr->cmdlist, state);
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if (item != NULL)
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new_item0 = cmdq_insert_after(item, new_item0);
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else
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new_item0 = cmdq_append(NULL, new_item0);
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cmd_list_free(pr->cmdlist);
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cmdq_free_state(state);
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if (new_item != NULL)
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*new_item = new_item0;
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return (0);
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}
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int
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load_cfg_from_buffer(const void *buf, size_t len, const char *path,
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struct client *c, struct cmdq_item *item, int flags,
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struct cmdq_item **new_item)
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{
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struct cmd_parse_input pi;
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struct cmd_parse_result *pr;
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struct cmdq_item *new_item0;
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struct cmdq_state *state;
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if (new_item != NULL)
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*new_item = NULL;
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log_debug("loading %s", path);
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memset(&pi, 0, sizeof pi);
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pi.flags = flags;
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pi.file = path;
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pi.line = 1;
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pi.item = item;
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pi.c = c;
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pr = cmd_parse_from_buffer(buf, len, &pi);
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if (pr->status == CMD_PARSE_EMPTY)
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return (0);
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if (pr->status == CMD_PARSE_ERROR) {
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cfg_add_cause("%s", pr->error);
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free(pr->error);
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return (-1);
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}
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if (flags & CMD_PARSE_PARSEONLY) {
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cmd_list_free(pr->cmdlist);
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return (0);
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}
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if (item != NULL)
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state = cmdq_copy_state(cmdq_get_state(item));
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else
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state = cmdq_new_state(NULL, NULL, 0);
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cmdq_add_format(state, "current_file", "%s", pi.file);
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new_item0 = cmdq_get_command(pr->cmdlist, state);
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if (item != NULL)
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new_item0 = cmdq_insert_after(item, new_item0);
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else
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new_item0 = cmdq_append(NULL, new_item0);
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cmd_list_free(pr->cmdlist);
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cmdq_free_state(state);
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if (new_item != NULL)
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*new_item = new_item0;
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return (0);
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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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struct window_mode_entry *wme;
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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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wme = TAILQ_FIRST(&wp->modes);
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if (wme == NULL || wme->mode != &window_view_mode)
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window_pane_set_mode(wp, NULL, &window_view_mode, NULL, NULL);
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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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