2 Execution routines for GNU Midnight Commander
4 Copyright (C) 2003, 2004, 2005, 2007, 2011
5 The Free Software Foundation, Inc.
7 This file is part of the Midnight Commander.
9 The Midnight Commander is free software: you can redistribute it
10 and/or modify it under the terms of the GNU General Public License as
11 published by the Free Software Foundation, either version 3 of the License,
12 or (at your option) any later version.
14 The Midnight Commander is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
24 * \brief Source: execution routines
33 #include "lib/global.h"
35 #include "lib/tty/tty.h"
36 #include "lib/tty/key.h"
37 #include "lib/tty/win.h"
38 #include "lib/vfs/vfs.h"
39 #include "lib/mcconfig.h"
41 #include "lib/widget.h"
43 #include "filemanager/midnight.h"
44 #include "filemanager/layout.h" /* use_dash() */
45 #include "consaver/cons.saver.h"
47 #include "setup.h" /* clear_before_exec */
51 /*** global variables ****************************************************************************/
53 int pause_after_run
= pause_on_dumb_terminals
;
55 /*** file scope macro definitions ****************************************************************/
57 /*** file scope type declarations ****************************************************************/
59 /*** file scope variables ************************************************************************/
61 /*** file scope functions ************************************************************************/
62 /* --------------------------------------------------------------------------------------------- */
65 edition_post_exec (void)
69 /* FIXME: Missing on slang endwin? */
70 tty_reset_prog_mode ();
77 if (mc_global
.tty
.alternate_plus_minus
)
78 application_keypad_mode ();
81 /* --------------------------------------------------------------------------------------------- */
84 edition_pre_exec (void)
86 if (clear_before_exec
)
90 if (!(mc_global
.tty
.console_flag
!= '\0' || mc_global
.tty
.xterm_flag
))
97 tty_reset_shell_mode ();
101 numeric_keypad_mode ();
103 /* on xterms: maybe endwin did not leave the terminal on the shell
104 * screen page: do it now.
106 * Do not move this before endwin: in some systems rmcup includes
107 * a call to clear screen, so it will end up clearing the shell screen.
112 /* --------------------------------------------------------------------------------------------- */
114 #ifdef HAVE_SUBSHELL_SUPPORT
116 do_possible_cd (const vfs_path_t
* new_dir_vpath
)
118 if (!do_cd (new_dir_vpath
, cd_exact
))
119 message (D_ERROR
, _("Warning"),
120 _("The Commander can't change to the directory that\n"
121 "the subshell claims you are in. Perhaps you have\n"
122 "deleted your working directory, or given yourself\n"
123 "extra access permissions with the \"su\" command?"));
125 #endif /* HAVE_SUBSHELL_SUPPORT */
127 /* --------------------------------------------------------------------------------------------- */
130 do_execute (const char *lc_shell
, const char *command
, int flags
)
132 #ifdef HAVE_SUBSHELL_SUPPORT
133 vfs_path_t
*new_dir_vpath
= NULL
;
134 #endif /* HAVE_SUBSHELL_SUPPORT */
136 vfs_path_t
*old_vfs_dir_vpath
= NULL
;
138 if (!vfs_current_is_local ())
139 old_vfs_dir_vpath
= vfs_path_clone (vfs_get_raw_current_dir ());
141 if (mc_global
.mc_run_mode
== MC_RUN_FULL
)
144 if (mc_global
.tty
.console_flag
!= '\0')
145 handle_console (CONSOLE_RESTORE
);
147 if (!mc_global
.tty
.use_subshell
&& command
&& !(flags
& EXECUTE_INTERNAL
))
149 printf ("%s%s\n", mc_prompt
, command
);
152 #ifdef HAVE_SUBSHELL_SUPPORT
153 if (mc_global
.tty
.use_subshell
&& !(flags
& EXECUTE_INTERNAL
))
157 /* We don't care if it died, higher level takes care of this */
158 invoke_subshell (command
, VISIBLY
, old_vfs_dir_vpath
!= NULL
? NULL
: &new_dir_vpath
);
161 #endif /* HAVE_SUBSHELL_SUPPORT */
162 my_system (flags
, lc_shell
, command
);
164 if (!(flags
& EXECUTE_INTERNAL
))
166 if ((pause_after_run
== pause_always
167 || (pause_after_run
== pause_on_dumb_terminals
&& !mc_global
.tty
.xterm_flag
168 && mc_global
.tty
.console_flag
== '\0')) && quit
== 0
169 #ifdef HAVE_SUBSHELL_SUPPORT
170 && subshell_state
!= RUNNING_COMMAND
171 #endif /* HAVE_SUBSHELL_SUPPORT */
174 printf (_("Press any key to continue..."));
181 if (mc_global
.tty
.console_flag
!= '\0')
183 if (output_lines
&& mc_global
.keybar_visible
)
191 if (mc_global
.tty
.console_flag
!= '\0')
192 handle_console (CONSOLE_SAVE
);
193 edition_post_exec ();
195 #ifdef HAVE_SUBSHELL_SUPPORT
196 if (new_dir_vpath
!= NULL
)
198 do_possible_cd (new_dir_vpath
);
199 vfs_path_free (new_dir_vpath
);
202 #endif /* HAVE_SUBSHELL_SUPPORT */
204 if (old_vfs_dir_vpath
!= NULL
)
206 mc_chdir (old_vfs_dir_vpath
);
207 vfs_path_free (old_vfs_dir_vpath
);
210 if (mc_global
.mc_run_mode
== MC_RUN_FULL
)
212 update_panels (UP_OPTIMIZE
, UP_KEEPSEL
);
213 update_xterm_title_path ();
220 /* --------------------------------------------------------------------------------------------- */
223 do_suspend_cmd (void)
227 if (mc_global
.tty
.console_flag
!= '\0' && !mc_global
.tty
.use_subshell
)
228 handle_console (CONSOLE_RESTORE
);
232 struct sigaction sigtstp_action
;
234 /* Make sure that the SIGTSTP below will suspend us directly,
235 without calling ncurses' SIGTSTP handler; we *don't* want
236 ncurses to redraw the screen immediately after the SIGCONT */
237 sigaction (SIGTSTP
, &startup_handler
, &sigtstp_action
);
239 kill (getpid (), SIGTSTP
);
241 /* Restore previous SIGTSTP action */
242 sigaction (SIGTSTP
, &sigtstp_action
, NULL
);
246 if (mc_global
.tty
.console_flag
!= '\0' && !mc_global
.tty
.use_subshell
)
247 handle_console (CONSOLE_SAVE
);
249 edition_post_exec ();
252 /* --------------------------------------------------------------------------------------------- */
253 /*** public functions ****************************************************************************/
254 /* --------------------------------------------------------------------------------------------- */
256 /** Set up the terminal before executing a program */
265 /* --------------------------------------------------------------------------------------------- */
266 /** Hide the terminal after executing a program */
270 edition_post_exec ();
275 /* --------------------------------------------------------------------------------------------- */
276 /* Executes a command */
279 shell_execute (const char *command
, int flags
)
283 if (flags
& EXECUTE_HIDE
)
285 cmd
= g_strconcat (" ", command
, (char *) NULL
);
286 flags
^= EXECUTE_HIDE
;
289 #ifdef HAVE_SUBSHELL_SUPPORT
290 if (mc_global
.tty
.use_subshell
)
291 if (subshell_state
== INACTIVE
)
292 do_execute (shell
, cmd
? cmd
: command
, flags
| EXECUTE_AS_SHELL
);
294 message (D_ERROR
, MSG_ERROR
, _("The shell is already running a command"));
296 #endif /* HAVE_SUBSHELL_SUPPORT */
297 do_execute (shell
, cmd
? cmd
: command
, flags
| EXECUTE_AS_SHELL
);
302 /* --------------------------------------------------------------------------------------------- */
307 do_execute (shell
, 0, 0);
310 /* --------------------------------------------------------------------------------------------- */
315 #ifdef HAVE_SUBSHELL_SUPPORT
316 vfs_path_t
*new_dir_vpath
= NULL
;
317 vfs_path_t
**new_dir_p
;
318 #endif /* HAVE_SUBSHELL_SUPPORT */
322 if (clear_before_exec
)
324 if (mc_global
.tty
.alternate_plus_minus
)
325 numeric_keypad_mode ();
327 /* With slang we don't want any of this, since there
328 * is no raw_mode supported
330 tty_reset_shell_mode ();
331 #endif /* !HAVE_SLANG */
337 if (mc_global
.tty
.console_flag
!= '\0')
338 handle_console (CONSOLE_RESTORE
);
340 #ifdef HAVE_SUBSHELL_SUPPORT
341 if (mc_global
.tty
.use_subshell
)
343 new_dir_p
= vfs_current_is_local ()? &new_dir_vpath
: NULL
;
344 invoke_subshell (NULL
, VISIBLY
, new_dir_p
);
347 #endif /* HAVE_SUBSHELL_SUPPORT */
349 if (output_starts_shell
)
351 fprintf (stderr
, _("Type `exit' to return to the Midnight Commander"));
352 fprintf (stderr
, "\n\r\n\r");
354 my_system (EXECUTE_INTERNAL
, shell
, NULL
);
360 if (mc_global
.tty
.console_flag
!= '\0')
361 handle_console (CONSOLE_SAVE
);
365 tty_reset_prog_mode ();
368 /* Prevent screen flash when user did 'exit' or 'logout' within
370 if ((quit
& SUBSHELL_EXIT
) != 0)
372 /* User did `exit' or `logout': quit MC */
373 if (quiet_quit_cmd ())
377 #ifdef HAVE_SUBSHELL_SUPPORT
378 /* restart subshell */
379 if (mc_global
.tty
.use_subshell
)
381 #endif /* HAVE_SUBSHELL_SUPPORT */
386 if (mc_global
.tty
.alternate_plus_minus
)
387 application_keypad_mode ();
389 #ifdef HAVE_SUBSHELL_SUPPORT
390 if (mc_global
.tty
.use_subshell
)
393 if (new_dir_vpath
!= NULL
)
394 do_possible_cd (new_dir_vpath
);
395 if (mc_global
.tty
.console_flag
!= '\0' && output_lines
)
396 show_console_contents (output_start_y
,
397 LINES
- mc_global
.keybar_visible
- output_lines
-
398 1, LINES
- mc_global
.keybar_visible
- 1);
401 vfs_path_free (new_dir_vpath
);
402 #endif /* HAVE_SUBSHELL_SUPPORT */
404 if (mc_global
.mc_run_mode
== MC_RUN_FULL
)
406 update_panels (UP_OPTIMIZE
, UP_KEEPSEL
);
407 update_xterm_title_path ();
412 /* --------------------------------------------------------------------------------------------- */
416 execute_suspend (const gchar
* event_group_name
, const gchar
* event_name
,
417 gpointer init_data
, gpointer data
)
419 (void) event_group_name
;
424 if (mc_global
.mc_run_mode
== MC_RUN_FULL
)
427 if (mc_global
.mc_run_mode
== MC_RUN_FULL
)
428 update_panels (UP_OPTIMIZE
, UP_KEEPSEL
);
434 /* --------------------------------------------------------------------------------------------- */
436 * Execute command on a filename that can be on VFS.
437 * Errors are reported to the user.
441 execute_with_vfs_arg (const char *command
, const vfs_path_t
* filename_vpath
)
445 vfs_path_t
*localcopy_vpath
;
447 /* Simplest case, this file is local */
448 if (filename_vpath
== NULL
|| vfs_file_is_local (filename_vpath
))
450 do_execute (command
, vfs_path_get_last_path_str (filename_vpath
), EXECUTE_INTERNAL
);
454 /* FIXME: Creation of new files on VFS is not supported */
455 if (vfs_path_len (filename_vpath
) == 0)
458 localcopy_vpath
= mc_getlocalcopy (filename_vpath
);
459 if (localcopy_vpath
== NULL
)
463 filename
= vfs_path_to_str (filename_vpath
);
464 message (D_ERROR
, MSG_ERROR
, _("Cannot fetch a local copy of %s"), filename
);
470 * filename can be an entry on panel, it can be changed by executing
471 * the command, so make a copy. Smarter VFS code would make the code
474 mc_stat (localcopy_vpath
, &st
);
476 do_execute (command
, vfs_path_get_last_path_str (localcopy_vpath
), EXECUTE_INTERNAL
);
477 mc_stat (localcopy_vpath
, &st
);
478 mc_ungetlocalcopy (filename_vpath
, localcopy_vpath
, mtime
!= st
.st_mtime
);
479 vfs_path_free (localcopy_vpath
);
482 /* --------------------------------------------------------------------------------------------- */