mirror of
https://github.com/tmux/tmux.git
synced 2024-12-13 01:48:47 +00:00
854e8ae04d
numbered windows, from Raghavendra D Prabhu.
1346 lines
31 KiB
C
1346 lines
31 KiB
C
/* $OpenBSD$ */
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/*
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* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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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 <sys/time.h>
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#include <fnmatch.h>
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#include <paths.h>
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#include <pwd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "tmux.h"
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const struct cmd_entry *cmd_table[] = {
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&cmd_attach_session_entry,
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&cmd_bind_key_entry,
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&cmd_break_pane_entry,
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&cmd_capture_pane_entry,
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&cmd_choose_buffer_entry,
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&cmd_choose_client_entry,
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&cmd_choose_list_entry,
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&cmd_choose_session_entry,
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&cmd_choose_tree_entry,
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&cmd_choose_window_entry,
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&cmd_clear_history_entry,
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&cmd_clock_mode_entry,
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&cmd_command_prompt_entry,
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&cmd_confirm_before_entry,
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&cmd_copy_mode_entry,
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&cmd_delete_buffer_entry,
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&cmd_detach_client_entry,
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&cmd_display_message_entry,
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&cmd_display_panes_entry,
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&cmd_find_window_entry,
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&cmd_has_session_entry,
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&cmd_if_shell_entry,
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&cmd_join_pane_entry,
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&cmd_kill_pane_entry,
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&cmd_kill_server_entry,
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&cmd_kill_session_entry,
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&cmd_kill_window_entry,
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&cmd_last_pane_entry,
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&cmd_last_window_entry,
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&cmd_link_window_entry,
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&cmd_list_buffers_entry,
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&cmd_list_clients_entry,
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&cmd_list_commands_entry,
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&cmd_list_keys_entry,
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&cmd_list_panes_entry,
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&cmd_list_sessions_entry,
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&cmd_list_windows_entry,
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&cmd_load_buffer_entry,
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&cmd_lock_client_entry,
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&cmd_lock_server_entry,
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&cmd_lock_session_entry,
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&cmd_move_pane_entry,
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&cmd_move_window_entry,
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&cmd_new_session_entry,
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&cmd_new_window_entry,
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&cmd_next_layout_entry,
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&cmd_next_window_entry,
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&cmd_paste_buffer_entry,
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&cmd_pipe_pane_entry,
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&cmd_previous_layout_entry,
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&cmd_previous_window_entry,
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&cmd_refresh_client_entry,
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&cmd_rename_session_entry,
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&cmd_rename_window_entry,
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&cmd_resize_pane_entry,
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&cmd_respawn_pane_entry,
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&cmd_respawn_window_entry,
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&cmd_rotate_window_entry,
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&cmd_run_shell_entry,
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&cmd_save_buffer_entry,
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&cmd_select_layout_entry,
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&cmd_select_pane_entry,
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&cmd_select_window_entry,
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&cmd_send_keys_entry,
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&cmd_send_prefix_entry,
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&cmd_server_info_entry,
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&cmd_set_buffer_entry,
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&cmd_set_environment_entry,
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&cmd_set_option_entry,
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&cmd_set_window_option_entry,
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&cmd_show_buffer_entry,
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&cmd_show_environment_entry,
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&cmd_show_messages_entry,
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&cmd_show_options_entry,
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&cmd_show_window_options_entry,
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&cmd_source_file_entry,
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&cmd_split_window_entry,
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&cmd_start_server_entry,
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&cmd_suspend_client_entry,
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&cmd_swap_pane_entry,
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&cmd_swap_window_entry,
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&cmd_switch_client_entry,
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&cmd_unbind_key_entry,
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&cmd_unlink_window_entry,
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NULL
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};
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int cmd_session_better(struct session *, struct session *, int);
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struct session *cmd_choose_session_list(struct sessionslist *);
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struct session *cmd_choose_session(int);
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struct client *cmd_choose_client(struct clients *);
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struct client *cmd_lookup_client(const char *);
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struct session *cmd_lookup_session(const char *, int *);
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struct winlink *cmd_lookup_window(struct session *, const char *, int *);
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int cmd_lookup_index(struct session *, const char *, int *);
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struct window_pane *cmd_lookup_paneid(const char *);
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struct winlink *cmd_lookup_winlink_windowid(struct session *, const char *);
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struct window *cmd_lookup_windowid(const char *);
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struct session *cmd_window_session(struct cmd_ctx *,
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struct window *, struct winlink **);
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struct winlink *cmd_find_window_offset(const char *, struct session *, int *);
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int cmd_find_index_offset(const char *, struct session *, int *);
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struct window_pane *cmd_find_pane_offset(const char *, struct winlink *);
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int
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cmd_pack_argv(int argc, char **argv, char *buf, size_t len)
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{
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size_t arglen;
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int i;
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*buf = '\0';
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for (i = 0; i < argc; i++) {
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if (strlcpy(buf, argv[i], len) >= len)
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return (-1);
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arglen = strlen(argv[i]) + 1;
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buf += arglen;
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len -= arglen;
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}
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return (0);
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}
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int
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cmd_unpack_argv(char *buf, size_t len, int argc, char ***argv)
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{
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int i;
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size_t arglen;
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if (argc == 0)
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return (0);
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*argv = xcalloc(argc, sizeof **argv);
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buf[len - 1] = '\0';
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for (i = 0; i < argc; i++) {
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if (len == 0) {
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cmd_free_argv(argc, *argv);
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return (-1);
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}
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arglen = strlen(buf) + 1;
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(*argv)[i] = xstrdup(buf);
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buf += arglen;
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len -= arglen;
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}
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return (0);
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}
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char **
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cmd_copy_argv(int argc, char *const *argv)
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{
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char **new_argv;
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int i;
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if (argc == 0)
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return (NULL);
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new_argv = xcalloc(argc, sizeof *new_argv);
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for (i = 0; i < argc; i++) {
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if (argv[i] != NULL)
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new_argv[i] = xstrdup(argv[i]);
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}
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return (new_argv);
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}
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void
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cmd_free_argv(int argc, char **argv)
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{
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int i;
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if (argc == 0)
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return;
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for (i = 0; i < argc; i++)
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free(argv[i]);
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free(argv);
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}
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struct cmd *
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cmd_parse(int argc, char **argv, char **cause)
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{
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const struct cmd_entry **entryp, *entry;
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struct cmd *cmd;
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struct args *args;
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char s[BUFSIZ];
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int ambiguous = 0;
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*cause = NULL;
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if (argc == 0) {
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xasprintf(cause, "no command");
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return (NULL);
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}
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entry = NULL;
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for (entryp = cmd_table; *entryp != NULL; entryp++) {
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if ((*entryp)->alias != NULL &&
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strcmp((*entryp)->alias, argv[0]) == 0) {
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ambiguous = 0;
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entry = *entryp;
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break;
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}
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if (strncmp((*entryp)->name, argv[0], strlen(argv[0])) != 0)
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continue;
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if (entry != NULL)
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ambiguous = 1;
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entry = *entryp;
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/* Bail now if an exact match. */
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if (strcmp(entry->name, argv[0]) == 0)
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break;
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}
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if (ambiguous)
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goto ambiguous;
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if (entry == NULL) {
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xasprintf(cause, "unknown command: %s", argv[0]);
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return (NULL);
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}
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args = args_parse(entry->args_template, argc, argv);
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if (args == NULL)
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goto usage;
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if (entry->args_lower != -1 && args->argc < entry->args_lower)
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goto usage;
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if (entry->args_upper != -1 && args->argc > entry->args_upper)
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goto usage;
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if (entry->check != NULL && entry->check(args) != 0)
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goto usage;
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cmd = xmalloc(sizeof *cmd);
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cmd->entry = entry;
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cmd->args = args;
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return (cmd);
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ambiguous:
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*s = '\0';
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for (entryp = cmd_table; *entryp != NULL; entryp++) {
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if (strncmp((*entryp)->name, argv[0], strlen(argv[0])) != 0)
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continue;
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if (strlcat(s, (*entryp)->name, sizeof s) >= sizeof s)
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break;
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if (strlcat(s, ", ", sizeof s) >= sizeof s)
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break;
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}
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s[strlen(s) - 2] = '\0';
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xasprintf(cause, "ambiguous command: %s, could be: %s", argv[0], s);
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return (NULL);
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usage:
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if (args != NULL)
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args_free(args);
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xasprintf(cause, "usage: %s %s", entry->name, entry->usage);
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return (NULL);
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}
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enum cmd_retval
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cmd_exec(struct cmd *cmd, struct cmd_ctx *ctx)
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{
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return (cmd->entry->exec(cmd, ctx));
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}
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void
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cmd_free(struct cmd *cmd)
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{
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args_free(cmd->args);
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free(cmd);
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}
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size_t
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cmd_print(struct cmd *cmd, char *buf, size_t len)
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{
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size_t off, used;
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off = xsnprintf(buf, len, "%s ", cmd->entry->name);
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if (off < len) {
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used = args_print(cmd->args, buf + off, len - off);
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if (used == 0)
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off--;
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else
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off += used;
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buf[off] = '\0';
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}
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return (off);
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}
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/*
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* Figure out the current session. Use: 1) the current session, if the command
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* context has one; 2) the most recently used session containing the pty of the
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* calling client, if any; 3) the session specified in the TMUX variable from
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* the environment (as passed from the client); 4) the most recently used
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* session from all sessions.
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*/
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struct session *
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cmd_current_session(struct cmd_ctx *ctx, int prefer_unattached)
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{
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struct msg_command_data *data = ctx->msgdata;
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struct client *c = ctx->cmdclient;
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struct session *s;
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struct sessionslist ss;
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struct winlink *wl;
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struct window_pane *wp;
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int found;
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if (ctx->curclient != NULL && ctx->curclient->session != NULL)
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return (ctx->curclient->session);
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/*
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* If the name of the calling client's pty is know, build a list of the
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* sessions that contain it and if any choose either the first or the
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* newest.
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*/
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if (c != NULL && c->tty.path != NULL) {
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ARRAY_INIT(&ss);
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RB_FOREACH(s, sessions, &sessions) {
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found = 0;
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RB_FOREACH(wl, winlinks, &s->windows) {
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TAILQ_FOREACH(wp, &wl->window->panes, entry) {
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if (strcmp(wp->tty, c->tty.path) == 0) {
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found = 1;
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break;
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}
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}
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if (found)
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break;
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}
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if (found)
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ARRAY_ADD(&ss, s);
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}
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s = cmd_choose_session_list(&ss);
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ARRAY_FREE(&ss);
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if (s != NULL)
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return (s);
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}
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/* Use the session from the TMUX environment variable. */
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if (data != NULL && data->pid == getpid() && data->idx != -1) {
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s = session_find_by_index(data->idx);
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if (s != NULL)
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return (s);
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}
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return (cmd_choose_session(prefer_unattached));
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}
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/* Is this session better? */
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int
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cmd_session_better(struct session *s, struct session *best,
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int prefer_unattached)
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{
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if (best == NULL)
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return 1;
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if (prefer_unattached) {
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if (!(best->flags & SESSION_UNATTACHED) &&
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(s->flags & SESSION_UNATTACHED))
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return 1;
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else if ((best->flags & SESSION_UNATTACHED) &&
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!(s->flags & SESSION_UNATTACHED))
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return 0;
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}
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return (timercmp(&s->activity_time, &best->activity_time, >));
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}
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/*
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* Find the most recently used session, preferring unattached if the flag is
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* set.
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*/
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struct session *
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cmd_choose_session(int prefer_unattached)
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{
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struct session *s, *best;
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best = NULL;
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RB_FOREACH(s, sessions, &sessions) {
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if (cmd_session_better(s, best, prefer_unattached))
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best = s;
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}
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return (best);
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}
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/* Find the most recently used session from a list. */
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struct session *
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cmd_choose_session_list(struct sessionslist *ss)
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{
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struct session *s, *sbest;
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struct timeval *tv = NULL;
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u_int i;
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sbest = NULL;
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for (i = 0; i < ARRAY_LENGTH(ss); i++) {
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if ((s = ARRAY_ITEM(ss, i)) == NULL)
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continue;
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if (tv == NULL || timercmp(&s->activity_time, tv, >)) {
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sbest = s;
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tv = &s->activity_time;
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}
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}
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return (sbest);
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}
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/*
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* Find the current client. First try the current client if set, then pick the
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* most recently used of the clients attached to the current session if any,
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* then of all clients.
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*/
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struct client *
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cmd_current_client(struct cmd_ctx *ctx)
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{
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struct session *s;
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struct client *c;
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struct clients cc;
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u_int i;
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if (ctx->curclient != NULL)
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return (ctx->curclient);
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/*
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* No current client set. Find the current session and return the
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* newest of its clients.
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*/
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s = cmd_current_session(ctx, 0);
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if (s != NULL && !(s->flags & SESSION_UNATTACHED)) {
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ARRAY_INIT(&cc);
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for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
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if ((c = ARRAY_ITEM(&clients, i)) == NULL)
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continue;
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if (s == c->session)
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ARRAY_ADD(&cc, c);
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}
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c = cmd_choose_client(&cc);
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ARRAY_FREE(&cc);
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if (c != NULL)
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return (c);
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}
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|
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return (cmd_choose_client(&clients));
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}
|
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|
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/* Choose the most recently used client from a list. */
|
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struct client *
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cmd_choose_client(struct clients *cc)
|
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{
|
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struct client *c, *cbest;
|
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struct timeval *tv = NULL;
|
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u_int i;
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cbest = NULL;
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for (i = 0; i < ARRAY_LENGTH(cc); i++) {
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if ((c = ARRAY_ITEM(cc, i)) == NULL)
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continue;
|
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if (c->session == NULL)
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continue;
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|
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if (tv == NULL || timercmp(&c->activity_time, tv, >)) {
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cbest = c;
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tv = &c->activity_time;
|
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}
|
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}
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|
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return (cbest);
|
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}
|
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|
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/* Find the target client or report an error and return NULL. */
|
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struct client *
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cmd_find_client(struct cmd_ctx *ctx, const char *arg)
|
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{
|
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struct client *c;
|
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char *tmparg;
|
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size_t arglen;
|
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|
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/* A NULL argument means the current client. */
|
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if (arg == NULL)
|
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return (cmd_current_client(ctx));
|
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tmparg = xstrdup(arg);
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|
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/* Trim a single trailing colon if any. */
|
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arglen = strlen(tmparg);
|
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if (arglen != 0 && tmparg[arglen - 1] == ':')
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tmparg[arglen - 1] = '\0';
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|
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/* Find the client, if any. */
|
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c = cmd_lookup_client(tmparg);
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|
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/* If no client found, report an error. */
|
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if (c == NULL)
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ctx->error(ctx, "client not found: %s", tmparg);
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|
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free(tmparg);
|
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return (c);
|
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}
|
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|
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/*
|
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* Lookup a client by device path. Either of a full match and a match without a
|
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* leading _PATH_DEV ("/dev/") is accepted.
|
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*/
|
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struct client *
|
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cmd_lookup_client(const char *name)
|
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{
|
|
struct client *c;
|
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const char *path;
|
|
u_int i;
|
|
|
|
for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
|
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c = ARRAY_ITEM(&clients, i);
|
|
if (c == NULL || c->session == NULL)
|
|
continue;
|
|
path = c->tty.path;
|
|
|
|
/* Check for exact matches. */
|
|
if (strcmp(name, path) == 0)
|
|
return (c);
|
|
|
|
/* Check without leading /dev if present. */
|
|
if (strncmp(path, _PATH_DEV, (sizeof _PATH_DEV) - 1) != 0)
|
|
continue;
|
|
if (strcmp(name, path + (sizeof _PATH_DEV) - 1) == 0)
|
|
return (c);
|
|
}
|
|
|
|
return (NULL);
|
|
}
|
|
|
|
/* Lookup a session by name. If no session is found, NULL is returned. */
|
|
struct session *
|
|
cmd_lookup_session(const char *name, int *ambiguous)
|
|
{
|
|
struct session *s, *sfound;
|
|
|
|
*ambiguous = 0;
|
|
|
|
/*
|
|
* Look for matches. First look for exact matches - session names must
|
|
* be unique so an exact match can't be ambigious and can just be
|
|
* returned.
|
|
*/
|
|
if ((s = session_find(name)) != NULL)
|
|
return (s);
|
|
|
|
/*
|
|
* Otherwise look for partial matches, returning early if it is found to
|
|
* be ambiguous.
|
|
*/
|
|
sfound = NULL;
|
|
RB_FOREACH(s, sessions, &sessions) {
|
|
if (strncmp(name, s->name, strlen(name)) == 0 ||
|
|
fnmatch(name, s->name, 0) == 0) {
|
|
if (sfound != NULL) {
|
|
*ambiguous = 1;
|
|
return (NULL);
|
|
}
|
|
sfound = s;
|
|
}
|
|
}
|
|
return (sfound);
|
|
}
|
|
|
|
/*
|
|
* Lookup a window or return -1 if not found or ambigious. First try as an
|
|
* index and if invalid, use fnmatch or leading prefix. Return NULL but fill in
|
|
* idx if the window index is a valid number but there is no window with that
|
|
* index.
|
|
*/
|
|
struct winlink *
|
|
cmd_lookup_window(struct session *s, const char *name, int *ambiguous)
|
|
{
|
|
struct winlink *wl, *wlfound;
|
|
const char *errstr;
|
|
u_int idx;
|
|
|
|
*ambiguous = 0;
|
|
|
|
/* Try as a window id. */
|
|
if ((wl = cmd_lookup_winlink_windowid(s, name)) != NULL)
|
|
return (wl);
|
|
|
|
/* First see if this is a valid window index in this session. */
|
|
idx = strtonum(name, 0, INT_MAX, &errstr);
|
|
if (errstr == NULL) {
|
|
if ((wl = winlink_find_by_index(&s->windows, idx)) != NULL)
|
|
return (wl);
|
|
}
|
|
|
|
/* Look for exact matches, error if more than one. */
|
|
wlfound = NULL;
|
|
RB_FOREACH(wl, winlinks, &s->windows) {
|
|
if (strcmp(name, wl->window->name) == 0) {
|
|
if (wlfound != NULL) {
|
|
*ambiguous = 1;
|
|
return (NULL);
|
|
}
|
|
wlfound = wl;
|
|
}
|
|
}
|
|
if (wlfound != NULL)
|
|
return (wlfound);
|
|
|
|
/* Now look for pattern matches, again error if multiple. */
|
|
wlfound = NULL;
|
|
RB_FOREACH(wl, winlinks, &s->windows) {
|
|
if (strncmp(name, wl->window->name, strlen(name)) == 0 ||
|
|
fnmatch(name, wl->window->name, 0) == 0) {
|
|
if (wlfound != NULL) {
|
|
*ambiguous = 1;
|
|
return (NULL);
|
|
}
|
|
wlfound = wl;
|
|
}
|
|
}
|
|
if (wlfound != NULL)
|
|
return (wlfound);
|
|
|
|
return (NULL);
|
|
}
|
|
|
|
/*
|
|
* Find a window index - if the window doesn't exist, check if it is a
|
|
* potential index and return it anyway.
|
|
*/
|
|
int
|
|
cmd_lookup_index(struct session *s, const char *name, int *ambiguous)
|
|
{
|
|
struct winlink *wl;
|
|
const char *errstr;
|
|
u_int idx;
|
|
|
|
if ((wl = cmd_lookup_window(s, name, ambiguous)) != NULL)
|
|
return (wl->idx);
|
|
if (*ambiguous)
|
|
return (-1);
|
|
|
|
idx = strtonum(name, 0, INT_MAX, &errstr);
|
|
if (errstr == NULL)
|
|
return (idx);
|
|
|
|
return (-1);
|
|
}
|
|
|
|
/* Lookup pane id. An initial % means a pane id. */
|
|
struct window_pane *
|
|
cmd_lookup_paneid(const char *arg)
|
|
{
|
|
const char *errstr;
|
|
u_int paneid;
|
|
|
|
if (*arg != '%')
|
|
return (NULL);
|
|
|
|
paneid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
|
|
if (errstr != NULL)
|
|
return (NULL);
|
|
return (window_pane_find_by_id(paneid));
|
|
}
|
|
|
|
/* Lookup window id in a session. An initial @ means a window id. */
|
|
struct winlink *
|
|
cmd_lookup_winlink_windowid(struct session *s, const char *arg)
|
|
{
|
|
const char *errstr;
|
|
u_int windowid;
|
|
|
|
if (*arg != '@')
|
|
return (NULL);
|
|
|
|
windowid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
|
|
if (errstr != NULL)
|
|
return (NULL);
|
|
return (winlink_find_by_window_id(&s->windows, windowid));
|
|
}
|
|
|
|
/* Lookup window id. An initial @ means a window id. */
|
|
struct window *
|
|
cmd_lookup_windowid(const char *arg)
|
|
{
|
|
const char *errstr;
|
|
u_int windowid;
|
|
|
|
if (*arg != '@')
|
|
return (NULL);
|
|
|
|
windowid = strtonum(arg + 1, 0, UINT_MAX, &errstr);
|
|
if (errstr != NULL)
|
|
return (NULL);
|
|
return (window_find_by_id(windowid));
|
|
}
|
|
|
|
/* Find session and winlink for window. */
|
|
struct session *
|
|
cmd_window_session(struct cmd_ctx *ctx, struct window *w, struct winlink **wlp)
|
|
{
|
|
struct session *s;
|
|
struct sessionslist ss;
|
|
struct winlink *wl;
|
|
|
|
/* If this window is in the current session, return that winlink. */
|
|
s = cmd_current_session(ctx, 0);
|
|
if (s != NULL) {
|
|
wl = winlink_find_by_window(&s->windows, w);
|
|
if (wl != NULL) {
|
|
if (wlp != NULL)
|
|
*wlp = wl;
|
|
return (s);
|
|
}
|
|
}
|
|
|
|
/* Otherwise choose from all sessions with this window. */
|
|
ARRAY_INIT(&ss);
|
|
RB_FOREACH(s, sessions, &sessions) {
|
|
if (winlink_find_by_window(&s->windows, w) != NULL)
|
|
ARRAY_ADD(&ss, s);
|
|
}
|
|
s = cmd_choose_session_list(&ss);
|
|
ARRAY_FREE(&ss);
|
|
if (wlp != NULL)
|
|
*wlp = winlink_find_by_window(&s->windows, w);
|
|
return (s);
|
|
}
|
|
|
|
/* Find the target session or report an error and return NULL. */
|
|
struct session *
|
|
cmd_find_session(struct cmd_ctx *ctx, const char *arg, int prefer_unattached)
|
|
{
|
|
struct session *s;
|
|
struct window_pane *wp;
|
|
struct window *w;
|
|
struct client *c;
|
|
char *tmparg;
|
|
size_t arglen;
|
|
int ambiguous;
|
|
|
|
/* A NULL argument means the current session. */
|
|
if (arg == NULL)
|
|
return (cmd_current_session(ctx, prefer_unattached));
|
|
|
|
/* Lookup as pane id or window id. */
|
|
if ((wp = cmd_lookup_paneid(arg)) != NULL)
|
|
return (cmd_window_session(ctx, wp->window, NULL));
|
|
if ((w = cmd_lookup_windowid(arg)) != NULL)
|
|
return (cmd_window_session(ctx, w, NULL));
|
|
|
|
/* Trim a single trailing colon if any. */
|
|
tmparg = xstrdup(arg);
|
|
arglen = strlen(tmparg);
|
|
if (arglen != 0 && tmparg[arglen - 1] == ':')
|
|
tmparg[arglen - 1] = '\0';
|
|
|
|
/* An empty session name is the current session. */
|
|
if (*tmparg == '\0') {
|
|
free(tmparg);
|
|
return (cmd_current_session(ctx, prefer_unattached));
|
|
}
|
|
|
|
/* Find the session, if any. */
|
|
s = cmd_lookup_session(tmparg, &ambiguous);
|
|
|
|
/* If it doesn't, try to match it as a client. */
|
|
if (s == NULL && (c = cmd_lookup_client(tmparg)) != NULL)
|
|
s = c->session;
|
|
|
|
/* If no session found, report an error. */
|
|
if (s == NULL) {
|
|
if (ambiguous)
|
|
ctx->error(ctx, "more than one session: %s", tmparg);
|
|
else
|
|
ctx->error(ctx, "session not found: %s", tmparg);
|
|
}
|
|
|
|
free(tmparg);
|
|
return (s);
|
|
}
|
|
|
|
/* Find the target session and window or report an error and return NULL. */
|
|
struct winlink *
|
|
cmd_find_window(struct cmd_ctx *ctx, const char *arg, struct session **sp)
|
|
{
|
|
struct session *s;
|
|
struct winlink *wl;
|
|
struct window_pane *wp;
|
|
const char *winptr;
|
|
char *sessptr = NULL;
|
|
int ambiguous = 0;
|
|
|
|
/*
|
|
* Find the current session. There must always be a current session, if
|
|
* it can't be found, report an error.
|
|
*/
|
|
if ((s = cmd_current_session(ctx, 0)) == NULL) {
|
|
ctx->error(ctx, "can't establish current session");
|
|
return (NULL);
|
|
}
|
|
|
|
/* A NULL argument means the current session and window. */
|
|
if (arg == NULL) {
|
|
if (sp != NULL)
|
|
*sp = s;
|
|
return (s->curw);
|
|
}
|
|
|
|
/* Lookup as pane id. */
|
|
if ((wp = cmd_lookup_paneid(arg)) != NULL) {
|
|
s = cmd_window_session(ctx, wp->window, &wl);
|
|
if (sp != NULL)
|
|
*sp = s;
|
|
return (wl);
|
|
}
|
|
|
|
/* Time to look at the argument. If it is empty, that is an error. */
|
|
if (*arg == '\0')
|
|
goto not_found;
|
|
|
|
/* Find the separating colon and split into window and session. */
|
|
winptr = strchr(arg, ':');
|
|
if (winptr == NULL)
|
|
goto no_colon;
|
|
winptr++; /* skip : */
|
|
sessptr = xstrdup(arg);
|
|
*strchr(sessptr, ':') = '\0';
|
|
|
|
/* Try to lookup the session if present. */
|
|
if (*sessptr != '\0') {
|
|
if ((s = cmd_lookup_session(sessptr, &ambiguous)) == NULL)
|
|
goto no_session;
|
|
}
|
|
if (sp != NULL)
|
|
*sp = s;
|
|
|
|
/*
|
|
* Then work out the window. An empty string is the current window,
|
|
* otherwise try special cases then to look it up in the session.
|
|
*/
|
|
if (*winptr == '\0')
|
|
wl = s->curw;
|
|
else if (winptr[0] == '!' && winptr[1] == '\0')
|
|
wl = TAILQ_FIRST(&s->lastw);
|
|
else if (winptr[0] == '^' && winptr[1] == '\0')
|
|
wl = RB_MIN(winlinks, &s->windows);
|
|
else if (winptr[0] == '$' && winptr[1] == '\0')
|
|
wl = RB_MAX(winlinks, &s->windows);
|
|
else if (winptr[0] == '+' || winptr[0] == '-')
|
|
wl = cmd_find_window_offset(winptr, s, &ambiguous);
|
|
else
|
|
wl = cmd_lookup_window(s, winptr, &ambiguous);
|
|
if (wl == NULL)
|
|
goto not_found;
|
|
|
|
if (sessptr != NULL)
|
|
free(sessptr);
|
|
return (wl);
|
|
|
|
no_colon:
|
|
/*
|
|
* No colon in the string, first try special cases, then as a window
|
|
* and lastly as a session.
|
|
*/
|
|
if (arg[0] == '!' && arg[1] == '\0') {
|
|
if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
|
|
goto not_found;
|
|
} else if (arg[0] == '+' || arg[0] == '-') {
|
|
if ((wl = cmd_find_window_offset(arg, s, &ambiguous)) == NULL)
|
|
goto lookup_session;
|
|
} else if ((wl = cmd_lookup_window(s, arg, &ambiguous)) == NULL)
|
|
goto lookup_session;
|
|
|
|
if (sp != NULL)
|
|
*sp = s;
|
|
|
|
return (wl);
|
|
|
|
lookup_session:
|
|
if (ambiguous)
|
|
goto not_found;
|
|
if (*arg != '\0' && (s = cmd_lookup_session(arg, &ambiguous)) == NULL)
|
|
goto no_session;
|
|
|
|
if (sp != NULL)
|
|
*sp = s;
|
|
|
|
return (s->curw);
|
|
|
|
no_session:
|
|
if (ambiguous)
|
|
ctx->error(ctx, "multiple sessions: %s", arg);
|
|
else
|
|
ctx->error(ctx, "session not found: %s", arg);
|
|
free(sessptr);
|
|
return (NULL);
|
|
|
|
not_found:
|
|
if (ambiguous)
|
|
ctx->error(ctx, "multiple windows: %s", arg);
|
|
else
|
|
ctx->error(ctx, "window not found: %s", arg);
|
|
free(sessptr);
|
|
return (NULL);
|
|
}
|
|
|
|
struct winlink *
|
|
cmd_find_window_offset(const char *winptr, struct session *s, int *ambiguous)
|
|
{
|
|
struct winlink *wl;
|
|
int offset = 1;
|
|
|
|
if (winptr[1] != '\0')
|
|
offset = strtonum(winptr + 1, 1, INT_MAX, NULL);
|
|
if (offset == 0)
|
|
wl = cmd_lookup_window(s, winptr, ambiguous);
|
|
else {
|
|
if (winptr[0] == '+')
|
|
wl = winlink_next_by_number(s->curw, s, offset);
|
|
else
|
|
wl = winlink_previous_by_number(s->curw, s, offset);
|
|
}
|
|
|
|
return (wl);
|
|
}
|
|
|
|
/*
|
|
* Find the target session and window index, whether or not it exists in the
|
|
* session. Return -2 on error or -1 if no window index is specified. This is
|
|
* used when parsing an argument for a window target that may not exist (for
|
|
* example if it is going to be created).
|
|
*/
|
|
int
|
|
cmd_find_index(struct cmd_ctx *ctx, const char *arg, struct session **sp)
|
|
{
|
|
struct session *s;
|
|
struct winlink *wl;
|
|
const char *winptr;
|
|
char *sessptr = NULL;
|
|
int idx, ambiguous = 0;
|
|
|
|
/*
|
|
* Find the current session. There must always be a current session, if
|
|
* it can't be found, report an error.
|
|
*/
|
|
if ((s = cmd_current_session(ctx, 0)) == NULL) {
|
|
ctx->error(ctx, "can't establish current session");
|
|
return (-2);
|
|
}
|
|
|
|
/* A NULL argument means the current session and "no window" (-1). */
|
|
if (arg == NULL) {
|
|
if (sp != NULL)
|
|
*sp = s;
|
|
return (-1);
|
|
}
|
|
|
|
/* Time to look at the argument. If it is empty, that is an error. */
|
|
if (*arg == '\0')
|
|
goto not_found;
|
|
|
|
/* Find the separating colon. If none, assume the current session. */
|
|
winptr = strchr(arg, ':');
|
|
if (winptr == NULL)
|
|
goto no_colon;
|
|
winptr++; /* skip : */
|
|
sessptr = xstrdup(arg);
|
|
*strchr(sessptr, ':') = '\0';
|
|
|
|
/* Try to lookup the session if present. */
|
|
if (sessptr != NULL && *sessptr != '\0') {
|
|
if ((s = cmd_lookup_session(sessptr, &ambiguous)) == NULL)
|
|
goto no_session;
|
|
}
|
|
if (sp != NULL)
|
|
*sp = s;
|
|
|
|
/*
|
|
* Then work out the window. An empty string is a new window otherwise
|
|
* try to look it up in the session.
|
|
*/
|
|
if (*winptr == '\0')
|
|
idx = -1;
|
|
else if (winptr[0] == '!' && winptr[1] == '\0') {
|
|
if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
|
|
goto not_found;
|
|
idx = wl->idx;
|
|
} else if (winptr[0] == '+' || winptr[0] == '-') {
|
|
if ((idx = cmd_find_index_offset(winptr, s, &ambiguous)) < 0)
|
|
goto invalid_index;
|
|
} else if ((idx = cmd_lookup_index(s, winptr, &ambiguous)) == -1)
|
|
goto invalid_index;
|
|
|
|
free(sessptr);
|
|
return (idx);
|
|
|
|
no_colon:
|
|
/*
|
|
* No colon in the string, first try special cases, then as a window
|
|
* and lastly as a session.
|
|
*/
|
|
if (arg[0] == '!' && arg[1] == '\0') {
|
|
if ((wl = TAILQ_FIRST(&s->lastw)) == NULL)
|
|
goto not_found;
|
|
idx = wl->idx;
|
|
} else if (arg[0] == '+' || arg[0] == '-') {
|
|
if ((idx = cmd_find_index_offset(arg, s, &ambiguous)) < 0)
|
|
goto lookup_session;
|
|
} else if ((idx = cmd_lookup_index(s, arg, &ambiguous)) == -1)
|
|
goto lookup_session;
|
|
|
|
if (sp != NULL)
|
|
*sp = s;
|
|
|
|
return (idx);
|
|
|
|
lookup_session:
|
|
if (ambiguous)
|
|
goto not_found;
|
|
if (*arg != '\0' && (s = cmd_lookup_session(arg, &ambiguous)) == NULL)
|
|
goto no_session;
|
|
|
|
if (sp != NULL)
|
|
*sp = s;
|
|
|
|
return (-1);
|
|
|
|
no_session:
|
|
if (ambiguous)
|
|
ctx->error(ctx, "multiple sessions: %s", arg);
|
|
else
|
|
ctx->error(ctx, "session not found: %s", arg);
|
|
free(sessptr);
|
|
return (-2);
|
|
|
|
invalid_index:
|
|
if (ambiguous)
|
|
goto not_found;
|
|
ctx->error(ctx, "invalid index: %s", arg);
|
|
|
|
free(sessptr);
|
|
return (-2);
|
|
|
|
not_found:
|
|
if (ambiguous)
|
|
ctx->error(ctx, "multiple windows: %s", arg);
|
|
else
|
|
ctx->error(ctx, "window not found: %s", arg);
|
|
free(sessptr);
|
|
return (-2);
|
|
}
|
|
|
|
int
|
|
cmd_find_index_offset(const char *winptr, struct session *s, int *ambiguous)
|
|
{
|
|
int idx, offset = 1;
|
|
|
|
if (winptr[1] != '\0')
|
|
offset = strtonum(winptr + 1, 1, INT_MAX, NULL);
|
|
if (offset == 0)
|
|
idx = cmd_lookup_index(s, winptr, ambiguous);
|
|
else {
|
|
if (winptr[0] == '+') {
|
|
if (s->curw->idx == INT_MAX)
|
|
idx = cmd_lookup_index(s, winptr, ambiguous);
|
|
else
|
|
idx = s->curw->idx + offset;
|
|
} else {
|
|
if (s->curw->idx == 0)
|
|
idx = cmd_lookup_index(s, winptr, ambiguous);
|
|
else
|
|
idx = s->curw->idx - offset;
|
|
}
|
|
}
|
|
|
|
return (idx);
|
|
}
|
|
|
|
/*
|
|
* Find the target session, window and pane number or report an error and
|
|
* return NULL. The pane number is separated from the session:window by a .,
|
|
* such as mysession:mywindow.0.
|
|
*/
|
|
struct winlink *
|
|
cmd_find_pane(struct cmd_ctx *ctx,
|
|
const char *arg, struct session **sp, struct window_pane **wpp)
|
|
{
|
|
struct session *s;
|
|
struct winlink *wl;
|
|
const char *period, *errstr;
|
|
char *winptr, *paneptr;
|
|
u_int idx;
|
|
|
|
/* Get the current session. */
|
|
if ((s = cmd_current_session(ctx, 0)) == NULL) {
|
|
ctx->error(ctx, "can't establish current session");
|
|
return (NULL);
|
|
}
|
|
if (sp != NULL)
|
|
*sp = s;
|
|
|
|
/* A NULL argument means the current session, window and pane. */
|
|
if (arg == NULL) {
|
|
*wpp = s->curw->window->active;
|
|
return (s->curw);
|
|
}
|
|
|
|
/* Lookup as pane id. */
|
|
if ((*wpp = cmd_lookup_paneid(arg)) != NULL) {
|
|
s = cmd_window_session(ctx, (*wpp)->window, &wl);
|
|
if (sp != NULL)
|
|
*sp = s;
|
|
return (wl);
|
|
}
|
|
|
|
/* Look for a separating period. */
|
|
if ((period = strrchr(arg, '.')) == NULL)
|
|
goto no_period;
|
|
|
|
/* Pull out the window part and parse it. */
|
|
winptr = xstrdup(arg);
|
|
winptr[period - arg] = '\0';
|
|
if (*winptr == '\0')
|
|
wl = s->curw;
|
|
else if ((wl = cmd_find_window(ctx, winptr, sp)) == NULL)
|
|
goto error;
|
|
|
|
/* Find the pane section and look it up. */
|
|
paneptr = winptr + (period - arg) + 1;
|
|
if (*paneptr == '\0')
|
|
*wpp = wl->window->active;
|
|
else if (paneptr[0] == '+' || paneptr[0] == '-')
|
|
*wpp = cmd_find_pane_offset(paneptr, wl);
|
|
else {
|
|
idx = strtonum(paneptr, 0, INT_MAX, &errstr);
|
|
if (errstr != NULL)
|
|
goto lookup_string;
|
|
*wpp = window_pane_at_index(wl->window, idx);
|
|
if (*wpp == NULL)
|
|
goto lookup_string;
|
|
}
|
|
|
|
free(winptr);
|
|
return (wl);
|
|
|
|
lookup_string:
|
|
/* Try pane string description. */
|
|
if ((*wpp = window_find_string(wl->window, paneptr)) == NULL) {
|
|
ctx->error(ctx, "can't find pane: %s", paneptr);
|
|
goto error;
|
|
}
|
|
|
|
free(winptr);
|
|
return (wl);
|
|
|
|
no_period:
|
|
/* Try as a pane number alone. */
|
|
idx = strtonum(arg, 0, INT_MAX, &errstr);
|
|
if (errstr != NULL)
|
|
goto lookup_window;
|
|
|
|
/* Try index in the current session and window. */
|
|
if ((*wpp = window_pane_at_index(s->curw->window, idx)) == NULL)
|
|
goto lookup_window;
|
|
|
|
return (s->curw);
|
|
|
|
lookup_window:
|
|
/* Try pane string description. */
|
|
if ((*wpp = window_find_string(s->curw->window, arg)) != NULL)
|
|
return (s->curw);
|
|
|
|
/* Try as a window and use the active pane. */
|
|
if ((wl = cmd_find_window(ctx, arg, sp)) != NULL)
|
|
*wpp = wl->window->active;
|
|
return (wl);
|
|
|
|
error:
|
|
free(winptr);
|
|
return (NULL);
|
|
}
|
|
|
|
struct window_pane *
|
|
cmd_find_pane_offset(const char *paneptr, struct winlink *wl)
|
|
{
|
|
struct window *w = wl->window;
|
|
struct window_pane *wp = w->active;
|
|
u_int offset = 1;
|
|
|
|
if (paneptr[1] != '\0')
|
|
offset = strtonum(paneptr + 1, 1, INT_MAX, NULL);
|
|
if (offset > 0) {
|
|
if (paneptr[0] == '+')
|
|
wp = window_pane_next_by_number(w, wp, offset);
|
|
else
|
|
wp = window_pane_previous_by_number(w, wp, offset);
|
|
}
|
|
|
|
return (wp);
|
|
}
|
|
|
|
/* Replace the first %% or %idx in template by s. */
|
|
char *
|
|
cmd_template_replace(char *template, const char *s, int idx)
|
|
{
|
|
char ch;
|
|
char *buf, *ptr;
|
|
int replaced;
|
|
size_t len;
|
|
|
|
if (strstr(template, "%") == NULL)
|
|
return (xstrdup(template));
|
|
|
|
buf = xmalloc(1);
|
|
*buf = '\0';
|
|
len = 0;
|
|
replaced = 0;
|
|
|
|
ptr = template;
|
|
while (*ptr != '\0') {
|
|
switch (ch = *ptr++) {
|
|
case '%':
|
|
if (*ptr < '1' || *ptr > '9' || *ptr - '0' != idx) {
|
|
if (*ptr != '%' || replaced)
|
|
break;
|
|
replaced = 1;
|
|
}
|
|
ptr++;
|
|
|
|
len += strlen(s);
|
|
buf = xrealloc(buf, 1, len + 1);
|
|
strlcat(buf, s, len + 1);
|
|
continue;
|
|
}
|
|
buf = xrealloc(buf, 1, len + 2);
|
|
buf[len++] = ch;
|
|
buf[len] = '\0';
|
|
}
|
|
|
|
return (buf);
|
|
}
|
|
|
|
/*
|
|
* Return the default path for a new pane, using the given path or the
|
|
* default-path option if it is NULL. Several special values are accepted: the
|
|
* empty string or relative path for the current pane's working directory, ~
|
|
* for the user's home, - for the session working directory, . for the tmux
|
|
* server's working directory. The default on failure is the session's working
|
|
* directory.
|
|
*/
|
|
const char *
|
|
cmd_get_default_path(struct cmd_ctx *ctx, const char *cwd)
|
|
{
|
|
struct session *s;
|
|
struct environ_entry *envent;
|
|
const char *root;
|
|
char tmp[MAXPATHLEN];
|
|
struct passwd *pw;
|
|
int n;
|
|
size_t skip;
|
|
static char path[MAXPATHLEN];
|
|
|
|
if ((s = cmd_current_session(ctx, 0)) == NULL)
|
|
return (NULL);
|
|
|
|
if (cwd == NULL)
|
|
cwd = options_get_string(&s->options, "default-path");
|
|
|
|
skip = 1;
|
|
if (strcmp(cwd, "$HOME") == 0 || strncmp(cwd, "$HOME/", 6) == 0) {
|
|
/* User's home directory - $HOME. */
|
|
skip = 5;
|
|
goto find_home;
|
|
} else if (cwd[0] == '~' && (cwd[1] == '\0' || cwd[1] == '/')) {
|
|
/* User's home directory - ~. */
|
|
goto find_home;
|
|
} else if (cwd[0] == '-' && (cwd[1] == '\0' || cwd[1] == '/')) {
|
|
/* Session working directory. */
|
|
root = s->cwd;
|
|
goto complete_path;
|
|
} else if (cwd[0] == '.' && (cwd[1] == '\0' || cwd[1] == '/')) {
|
|
/* Server working directory. */
|
|
if (getcwd(tmp, sizeof tmp) != NULL) {
|
|
root = tmp;
|
|
goto complete_path;
|
|
}
|
|
return (s->cwd);
|
|
} else if (*cwd == '/') {
|
|
/* Absolute path. */
|
|
return (cwd);
|
|
} else {
|
|
/* Empty or relative path. */
|
|
if (ctx->cmdclient != NULL && ctx->cmdclient->cwd != NULL)
|
|
root = ctx->cmdclient->cwd;
|
|
else if (ctx->curclient != NULL && s->curw != NULL)
|
|
root = get_proc_cwd(s->curw->window->active->fd);
|
|
else
|
|
return (s->cwd);
|
|
skip = 0;
|
|
if (root != NULL)
|
|
goto complete_path;
|
|
}
|
|
|
|
return (s->cwd);
|
|
|
|
find_home:
|
|
envent = environ_find(&global_environ, "HOME");
|
|
if (envent != NULL && *envent->value != '\0')
|
|
root = envent->value;
|
|
else if ((pw = getpwuid(getuid())) != NULL)
|
|
root = pw->pw_dir;
|
|
else
|
|
return (s->cwd);
|
|
|
|
complete_path:
|
|
if (root[skip] == '\0') {
|
|
strlcpy(path, root, sizeof path);
|
|
return (path);
|
|
}
|
|
n = snprintf(path, sizeof path, "%s/%s", root, cwd + skip);
|
|
if (n > 0 && (size_t)n < sizeof path)
|
|
return (path);
|
|
return (s->cwd);
|
|
}
|