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Diffstat (limited to '')
| -rw-r--r-- | cfg.c | 260 |
1 files changed, 260 insertions, 0 deletions
@@ -0,0 +1,260 @@ +/* $OpenBSD$ */ + +/* + * Copyright (c) 2008 Nicholas Marriott <nicholas.marriott@gmail.com> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER + * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <sys/types.h> + +#include <ctype.h> +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "tmux.h" + +struct client *cfg_client; +int cfg_finished; +static char **cfg_causes; +static u_int cfg_ncauses; +static struct cmdq_item *cfg_item; + +int cfg_quiet = 1; +char **cfg_files; +u_int cfg_nfiles; + +static enum cmd_retval +cfg_client_done(__unused struct cmdq_item *item, __unused void *data) +{ + if (!cfg_finished) + return (CMD_RETURN_WAIT); + return (CMD_RETURN_NORMAL); +} + +static enum cmd_retval +cfg_done(__unused struct cmdq_item *item, __unused void *data) +{ + if (cfg_finished) + return (CMD_RETURN_NORMAL); + cfg_finished = 1; + + if (!RB_EMPTY(&sessions)) + cfg_show_causes(RB_MIN(sessions, &sessions)); + + if (cfg_item != NULL) + cmdq_continue(cfg_item); + + status_prompt_load_history(); + + return (CMD_RETURN_NORMAL); +} + +void +start_cfg(void) +{ + struct client *c; + u_int i; + + /* + * Configuration files are loaded without a client, so commands are run + * in the global queue with item->client NULL. + * + * However, we must block the initial client (but just the initial + * client) so that its command runs after the configuration is loaded. + * Because start_cfg() is called so early, we can be sure the client's + * command queue is currently empty and our callback will be at the + * front - we need to get in before MSG_COMMAND. + */ + cfg_client = c = TAILQ_FIRST(&clients); + if (c != NULL) { + cfg_item = cmdq_get_callback(cfg_client_done, NULL); + cmdq_append(c, cfg_item); + } + + for (i = 0; i < cfg_nfiles; i++) { + if (cfg_quiet) + load_cfg(cfg_files[i], c, NULL, CMD_PARSE_QUIET, NULL); + else + load_cfg(cfg_files[i], c, NULL, 0, NULL); + } + + cmdq_append(NULL, cmdq_get_callback(cfg_done, NULL)); +} + +int +load_cfg(const char *path, struct client *c, struct cmdq_item *item, int flags, + struct cmdq_item **new_item) +{ + FILE *f; + struct cmd_parse_input pi; + struct cmd_parse_result *pr; + struct cmdq_item *new_item0; + struct cmdq_state *state; + + if (new_item != NULL) + *new_item = NULL; + + log_debug("loading %s", path); + if ((f = fopen(path, "rb")) == NULL) { + if (errno == ENOENT && (flags & CMD_PARSE_QUIET)) + return (0); + cfg_add_cause("%s: %s", path, strerror(errno)); + return (-1); + } + + memset(&pi, 0, sizeof pi); + pi.flags = flags; + pi.file = path; + pi.line = 1; + pi.item = item; + pi.c = c; + + pr = cmd_parse_from_file(f, &pi); + fclose(f); + if (pr->status == CMD_PARSE_ERROR) { + cfg_add_cause("%s", pr->error); + free(pr->error); + return (-1); + } + if (flags & CMD_PARSE_PARSEONLY) { + cmd_list_free(pr->cmdlist); + return (0); + } + + if (item != NULL) + state = cmdq_copy_state(cmdq_get_state(item)); + else + state = cmdq_new_state(NULL, NULL, 0); + cmdq_add_format(state, "current_file", "%s", pi.file); + + new_item0 = cmdq_get_command(pr->cmdlist, state); + if (item != NULL) + new_item0 = cmdq_insert_after(item, new_item0); + else + new_item0 = cmdq_append(NULL, new_item0); + cmd_list_free(pr->cmdlist); + cmdq_free_state(state); + + if (new_item != NULL) + *new_item = new_item0; + return (0); +} + +int +load_cfg_from_buffer(const void *buf, size_t len, const char *path, + struct client *c, struct cmdq_item *item, int flags, + struct cmdq_item **new_item) +{ + struct cmd_parse_input pi; + struct cmd_parse_result *pr; + struct cmdq_item *new_item0; + struct cmdq_state *state; + + if (new_item != NULL) + *new_item = NULL; + + log_debug("loading %s", path); + + memset(&pi, 0, sizeof pi); + pi.flags = flags; + pi.file = path; + pi.line = 1; + pi.item = item; + pi.c = c; + + pr = cmd_parse_from_buffer(buf, len, &pi); + if (pr->status == CMD_PARSE_ERROR) { + cfg_add_cause("%s", pr->error); + free(pr->error); + return (-1); + } + if (flags & CMD_PARSE_PARSEONLY) { + cmd_list_free(pr->cmdlist); + return (0); + } + + if (item != NULL) + state = cmdq_copy_state(cmdq_get_state(item)); + else + state = cmdq_new_state(NULL, NULL, 0); + cmdq_add_format(state, "current_file", "%s", pi.file); + + new_item0 = cmdq_get_command(pr->cmdlist, state); + if (item != NULL) + new_item0 = cmdq_insert_after(item, new_item0); + else + new_item0 = cmdq_append(NULL, new_item0); + cmd_list_free(pr->cmdlist); + cmdq_free_state(state); + + if (new_item != NULL) + *new_item = new_item0; + return (0); +} + +void +cfg_add_cause(const char *fmt, ...) +{ + va_list ap; + char *msg; + + va_start(ap, fmt); + xvasprintf(&msg, fmt, ap); + va_end(ap); + + cfg_ncauses++; + cfg_causes = xreallocarray(cfg_causes, cfg_ncauses, sizeof *cfg_causes); + cfg_causes[cfg_ncauses - 1] = msg; +} + +void +cfg_print_causes(struct cmdq_item *item) +{ + u_int i; + + for (i = 0; i < cfg_ncauses; i++) { + cmdq_print(item, "%s", cfg_causes[i]); + free(cfg_causes[i]); + } + + free(cfg_causes); + cfg_causes = NULL; + cfg_ncauses = 0; +} + +void +cfg_show_causes(struct session *s) +{ + struct window_pane *wp; + struct window_mode_entry *wme; + u_int i; + + if (s == NULL || cfg_ncauses == 0) + return; + wp = s->curw->window->active; + + wme = TAILQ_FIRST(&wp->modes); + if (wme == NULL || wme->mode != &window_view_mode) + window_pane_set_mode(wp, NULL, &window_view_mode, NULL, NULL); + for (i = 0; i < cfg_ncauses; i++) { + window_copy_add(wp, 0, "%s", cfg_causes[i]); + free(cfg_causes[i]); + } + + free(cfg_causes); + cfg_causes = NULL; + cfg_ncauses = 0; +} |