Annotation of src/usr.bin/tmux/cmd-new-session.c, Revision 1.64
1.64 ! nicm 1: /* $OpenBSD: cmd-new-session.c,v 1.63 2014/10/20 23:35:28 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15: * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16: * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18:
19: #include <sys/types.h>
20:
1.54 nicm 21: #include <errno.h>
22: #include <fcntl.h>
1.35 nicm 23: #include <stdlib.h>
1.11 nicm 24: #include <string.h>
25: #include <termios.h>
1.30 nicm 26: #include <unistd.h>
1.11 nicm 27:
1.1 nicm 28: #include "tmux.h"
29:
30: /*
31: * Create a new session and attach to the current terminal unless -d is given.
32: */
1.63 nicm 33:
34: #define NEW_SESSION_TEMPLATE "#{session_name}:"
1.1 nicm 35:
1.48 nicm 36: enum cmd_retval cmd_new_session_exec(struct cmd *, struct cmd_q *);
1.1 nicm 37:
38: const struct cmd_entry cmd_new_session_entry = {
39: "new-session", "new",
1.60 nicm 40: "Ac:dDF:n:Ps:t:x:y:", 0, -1,
1.52 nicm 41: "[-AdDP] [-c start-directory] [-F format] [-n window-name] "
1.60 nicm 42: "[-s session-name] " CMD_TARGET_SESSION_USAGE " [-x width] "
43: "[-y height] [command]",
1.53 nicm 44: CMD_STARTSERVER|CMD_CANTNEST,
1.34 nicm 45: cmd_new_session_exec
1.1 nicm 46: };
47:
1.62 nicm 48: const struct cmd_entry cmd_has_session_entry = {
49: "has-session", "has",
50: "t:", 0, 0,
51: CMD_TARGET_SESSION_USAGE,
52: 0,
53: cmd_new_session_exec
54: };
55:
1.45 nicm 56: enum cmd_retval
1.48 nicm 57: cmd_new_session_exec(struct cmd *self, struct cmd_q *cmdq)
1.1 nicm 58: {
1.50 nicm 59: struct args *args = self->args;
1.54 nicm 60: struct client *c = cmdq->client, *c0;
1.50 nicm 61: struct session *s, *groupwith;
62: struct window *w;
63: struct environ env;
64: struct termios tio, *tiop;
1.54 nicm 65: const char *newname, *target, *update, *errstr, *template;
1.59 nicm 66: const char *path;
1.60 nicm 67: char **argv, *cmd, *cause, *cp;
1.54 nicm 68: int detached, already_attached, idx, cwd, fd = -1;
1.60 nicm 69: int argc;
1.50 nicm 70: u_int sx, sy;
71: struct format_tree *ft;
1.59 nicm 72: struct environ_entry *envent;
1.62 nicm 73:
74: if (self->entry == &cmd_has_session_entry) {
75: if (cmd_find_session(cmdq, args_get(args, 't'), 0) == NULL)
76: return (CMD_RETURN_ERROR);
77: return (CMD_RETURN_NORMAL);
78: }
1.51 nicm 79:
80: if (args_has(args, 't') && (args->argc != 0 || args_has(args, 'n'))) {
81: cmdq_error(cmdq, "command or window name given with target");
82: return (CMD_RETURN_ERROR);
83: }
1.34 nicm 84:
85: newname = args_get(args, 's');
1.38 nicm 86: if (newname != NULL) {
87: if (!session_check_name(newname)) {
1.48 nicm 88: cmdq_error(cmdq, "bad session name: %s", newname);
1.45 nicm 89: return (CMD_RETURN_ERROR);
1.38 nicm 90: }
91: if (session_find(newname) != NULL) {
1.49 nicm 92: if (args_has(args, 'A')) {
93: return (cmd_attach_session(cmdq, newname,
1.54 nicm 94: args_has(args, 'D'), 0, NULL));
1.49 nicm 95: }
1.48 nicm 96: cmdq_error(cmdq, "duplicate session: %s", newname);
1.45 nicm 97: return (CMD_RETURN_ERROR);
1.38 nicm 98: }
1.4 nicm 99: }
1.1 nicm 100:
1.34 nicm 101: target = args_get(args, 't');
102: if (target != NULL) {
1.48 nicm 103: groupwith = cmd_find_session(cmdq, target, 0);
1.34 nicm 104: if (groupwith == NULL)
1.45 nicm 105: return (CMD_RETURN_ERROR);
1.34 nicm 106: } else
107: groupwith = NULL;
1.21 nicm 108:
1.6 nicm 109: /* Set -d if no client. */
1.34 nicm 110: detached = args_has(args, 'd');
1.48 nicm 111: if (c == NULL)
1.6 nicm 112: detached = 1;
113:
1.48 nicm 114: /* Is this client already attached? */
115: already_attached = 0;
116: if (c != NULL && c->session != NULL)
117: already_attached = 1;
118:
1.54 nicm 119: /* Get the new session working directory. */
120: if (args_has(args, 'c')) {
121: ft = format_create();
1.64 ! nicm 122: format_defaults(ft, cmd_find_client(cmdq, NULL, 1), NULL, NULL,
! 123: NULL);
1.54 nicm 124: cp = format_expand(ft, args_get(args, 'c'));
125: format_free(ft);
126:
1.56 nicm 127: if (cp != NULL && *cp != '\0') {
128: fd = open(cp, O_RDONLY|O_DIRECTORY);
129: free(cp);
130: if (fd == -1) {
131: cmdq_error(cmdq, "bad working directory: %s",
132: strerror(errno));
133: return (CMD_RETURN_ERROR);
134: }
135: } else if (cp != NULL)
136: free(cp);
1.54 nicm 137: cwd = fd;
1.55 nicm 138: } else if (c != NULL && c->session == NULL)
1.54 nicm 139: cwd = c->cwd;
140: else if ((c0 = cmd_current_client(cmdq)) != NULL)
141: cwd = c0->session->cwd;
142: else {
143: fd = open(".", O_RDONLY);
144: cwd = fd;
145: }
146:
1.15 nicm 147: /*
1.19 nicm 148: * Save the termios settings, part of which is used for new windows in
149: * this session.
1.15 nicm 150: *
151: * This is read again with tcgetattr() rather than using tty.tio as if
152: * detached, tty_open won't be called. Because of this, it must be done
153: * before opening the terminal as that calls tcsetattr() to prepare for
154: * tmux taking over.
155: */
1.48 nicm 156: if (!detached && !already_attached && c->tty.fd != -1) {
157: if (tcgetattr(c->tty.fd, &tio) != 0)
1.15 nicm 158: fatal("tcgetattr failed");
1.19 nicm 159: tiop = &tio;
1.15 nicm 160: } else
1.19 nicm 161: tiop = NULL;
1.15 nicm 162:
1.4 nicm 163: /* Open the terminal if necessary. */
1.48 nicm 164: if (!detached && !already_attached) {
1.57 nicm 165: if (server_client_open(c, &cause) != 0) {
1.48 nicm 166: cmdq_error(cmdq, "open terminal failed: %s", cause);
1.44 nicm 167: free(cause);
1.54 nicm 168: goto error;
1.1 nicm 169: }
170: }
171:
1.16 nicm 172: /* Find new session size. */
1.48 nicm 173: if (c != NULL) {
174: sx = c->tty.sx;
175: sy = c->tty.sy;
1.39 nicm 176: } else {
1.4 nicm 177: sx = 80;
1.18 nicm 178: sy = 24;
1.39 nicm 179: }
1.48 nicm 180: if (detached && args_has(args, 'x')) {
181: sx = strtonum(args_get(args, 'x'), 1, USHRT_MAX, &errstr);
182: if (errstr != NULL) {
183: cmdq_error(cmdq, "width %s", errstr);
1.54 nicm 184: goto error;
1.35 nicm 185: }
1.48 nicm 186: }
187: if (detached && args_has(args, 'y')) {
188: sy = strtonum(args_get(args, 'y'), 1, USHRT_MAX, &errstr);
189: if (errstr != NULL) {
190: cmdq_error(cmdq, "height %s", errstr);
1.54 nicm 191: goto error;
1.35 nicm 192: }
1.1 nicm 193: }
1.7 nicm 194: if (sy > 0 && options_get_number(&global_s_options, "status"))
1.4 nicm 195: sy--;
196: if (sx == 0)
197: sx = 1;
198: if (sy == 0)
199: sy = 1;
1.16 nicm 200:
201: /* Figure out the command for the new window. */
1.60 nicm 202: argc = -1;
203: argv = NULL;
204: if (target == NULL && args->argc != 0) {
205: argc = args->argc;
206: argv = args->argv;
207: } else if (target == NULL) {
1.7 nicm 208: cmd = options_get_string(&global_s_options, "default-command");
1.60 nicm 209: if (cmd != NULL && *cmd != '\0') {
210: argc = 1;
211: argv = &cmd;
212: } else {
213: argc = 0;
214: argv = NULL;
215: }
216: }
1.1 nicm 217:
1.59 nicm 218: path = NULL;
219: if (c != NULL && c->session == NULL)
220: envent = environ_find(&c->environ, "PATH");
221: else
222: envent = environ_find(&global_environ, "PATH");
223: if (envent != NULL)
224: path = envent->value;
225:
1.10 nicm 226: /* Construct the environment. */
227: environ_init(&env);
228: update = options_get_string(&global_s_options, "update-environment");
1.48 nicm 229: if (c != NULL)
230: environ_update(update, &c->environ, &env);
1.11 nicm 231:
1.4 nicm 232: /* Create the new session. */
1.13 nicm 233: idx = -1 - options_get_number(&global_s_options, "base-index");
1.60 nicm 234: s = session_create(newname, argc, argv, path, cwd, &env, tiop, idx, sx,
235: sy, &cause);
1.1 nicm 236: if (s == NULL) {
1.48 nicm 237: cmdq_error(cmdq, "create session failed: %s", cause);
1.44 nicm 238: free(cause);
1.54 nicm 239: goto error;
1.1 nicm 240: }
1.10 nicm 241: environ_free(&env);
1.4 nicm 242:
1.16 nicm 243: /* Set the initial window name if one given. */
1.60 nicm 244: if (argc >= 0 && args_has(args, 'n')) {
1.16 nicm 245: w = s->curw->window;
1.40 nicm 246: window_set_name(w, args_get(args, 'n'));
1.16 nicm 247: options_set_number(&w->options, "automatic-rename", 0);
1.21 nicm 248: }
249:
250: /*
251: * If a target session is given, this is to be part of a session group,
252: * so add it to the group and synchronize.
253: */
254: if (groupwith != NULL) {
255: session_group_add(groupwith, s);
256: session_group_synchronize_to(s);
257: session_select(s, RB_ROOT(&s->windows)->idx);
1.1 nicm 258: }
259:
1.16 nicm 260: /*
261: * Set the client to the new session. If a command client exists, it is
262: * taking this session and needs to get MSG_READY and stay around.
1.4 nicm 263: */
1.25 nicm 264: if (!detached) {
1.48 nicm 265: if (!already_attached)
266: server_write_ready(c);
267: else if (c->session != NULL)
268: c->last_session = c->session;
269: c->session = s;
270: notify_attached_session_changed(c);
271: session_update_activity(s);
272: server_redraw_client(c);
1.1 nicm 273: }
274: recalculate_sizes();
1.22 nicm 275: server_update_socket();
1.26 nicm 276:
277: /*
278: * If there are still configuration file errors to display, put the new
279: * session's current window into more mode and display them now.
280: */
1.46 nicm 281: if (cfg_finished)
1.48 nicm 282: cfg_show_causes(s);
1.50 nicm 283:
284: /* Print if requested. */
285: if (args_has(args, 'P')) {
286: if ((template = args_get(args, 'F')) == NULL)
287: template = NEW_SESSION_TEMPLATE;
288:
289: ft = format_create();
1.64 ! nicm 290: format_defaults(ft, cmd_find_client(cmdq, NULL, 1), s, NULL,
! 291: NULL);
1.50 nicm 292:
293: cp = format_expand(ft, template);
294: cmdq_print(cmdq, "%s", cp);
295: free(cp);
296:
297: format_free(ft);
298: }
1.1 nicm 299:
1.48 nicm 300: if (!detached)
301: cmdq->client_exit = 0;
1.54 nicm 302:
303: if (fd != -1)
304: close(fd);
1.48 nicm 305: return (CMD_RETURN_NORMAL);
1.54 nicm 306:
307: error:
308: if (fd != -1)
309: close(fd);
310: return (CMD_RETURN_ERROR);
1.1 nicm 311: }
![[BACK]](/icons/back.gif){kind=icon}
Return to cmd-new-session.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / tmux