Run kill-emacs when exiting for display closed or SIGTERM/HUP.

* xsmfns.c (CHDIR_OPT): New define.
(smc_save_yourself_CB): Add CHDIR_OPT to options to use when
restarting emacs.

* xterm.c (x_connection_closed): Call Fkill_emacs instead of
shut_down_emacs.

* emacs.c (USAGE1): Mention --chdir.
(main): Handle --chdir.
(standard_args): Add --chdir.
(fatal_error_signal): Call Fkill_emacs for SIGTERM and SIGHUP (Bug
#5552).

* cmdargs.texi (Initial Options): Mention --chdir.

6 files changed, 68 insertions, 9 deletions

diff --git a/doc/emacs/ChangeLog b/doc/emacs/ChangeLog
index d2df84e2aae..5c144833e1d 100644
--- a/doc/emacs/ChangeLog
+++ b/doc/emacs/ChangeLog
@@ -1,3 +1,7 @@
+2010-05-02  Jan Djärv  <jan.h.d@swipnet.se>
+
+	* cmdargs.texi (Initial Options): Mention --chdir.
+
 2010-04-21  Jan Djärv  <jan.h.d@swipnet.se>
 
 	* frames.texi (Tool Bars): Add tool-bar-style.
diff --git a/doc/emacs/cmdargs.texi b/doc/emacs/cmdargs.texi
index a139e0eb0f4..ff8e4f84abd 100644
--- a/doc/emacs/cmdargs.texi
+++ b/doc/emacs/cmdargs.texi
@@ -193,6 +193,15 @@ Certain options prevent loading of some of these files or substitute
 other files for them.
 
 @table @samp
+@item -chdir @var{directory}
+@opindex -chdir
+@itemx --chdir=@var{directory}
+@opindex --chdir
+@cindex change Emacs directory
+Change to @var{directory} before doing anything else.  This is mainly used
+by session management in X so that Emacs starts in the same directory as it
+stopped.  This makes desktop saving and restoring easier.
+
 @item -t @var{device}
 @opindex -t
 @itemx --terminal=@var{device}
diff --git a/src/ChangeLog b/src/ChangeLog
index 4d3c6dca4e1..2e0a77ce187 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,18 @@
+2010-05-02  Jan Djärv  <jan.h.d@swipnet.se>
+
+	* xsmfns.c (CHDIR_OPT): New define.
+	(smc_save_yourself_CB): Add CHDIR_OPT to options to use when
+	restarting emacs.
+
+	* xterm.c (x_connection_closed): Call Fkill_emacs instead of
+	shut_down_emacs.
+
+	* emacs.c (USAGE1): Mention --chdir.
+	(main): Handle --chdir.
+	(standard_args): Add --chdir.
+	(fatal_error_signal): Call Fkill_emacs for SIGTERM and SIGHUP (Bug
+	#5552).
+
 2010-05-01  Dan Nicolaescu  <dann@ics.uci.edu>
 
 	Remove LD_SWITCH_MACHINE.
diff --git a/src/emacs.c b/src/emacs.c
index 400a6b0e594..d40ff3662f0 100644
--- a/src/emacs.c
+++ b/src/emacs.c
@@ -268,6 +268,7 @@ read the main documentation for these command-line arguments.\n\
 Initialization options:\n\
 \n\
 --batch                     do not do interactive display; implies -q\n\
+--chdir DIR                 change to directory DIR\n\
 --daemon                    start a server in the background\n\
 --debug-init                enable Emacs Lisp debugger for init file\n\
 --display, -d DISPLAY       use X server DISPLAY\n\
@@ -385,6 +386,9 @@ fatal_error_signal (sig)
     {
       fatal_error_in_progress = 1;
 
+      if (sig == SIGTERM || sig == SIGHUP)
+        Fkill_emacs (make_number (sig));
+
       shut_down_emacs (sig, 0, Qnil);
     }
 
@@ -765,6 +769,7 @@ main (int argc, char **argv)
 #ifdef NS_IMPL_COCOA
   char dname_arg2[80];
 #endif
+  char *ch_to_dir;
 
 #if GC_MARK_STACK
   extern Lisp_Object *stack_base;
@@ -832,6 +837,14 @@ main (int argc, char **argv)
 	  exit (0);
 	}
     }
+  if (argmatch (argv, argc, "-chdir", "--chdir", 2, &ch_to_dir, &skip_args))
+      if (chdir (ch_to_dir) == -1)
+        {
+          fprintf (stderr, "%s: Can't chdir to %s: %s\n",
+                   argv[0], ch_to_dir, strerror (errno));
+          exit (1);
+        }
+
 
 #ifdef HAVE_PERSONALITY_LINUX32
   if (!initialized
@@ -1802,6 +1815,7 @@ struct standard_args
 const struct standard_args standard_args[] =
 {
   { "-version", "--version", 150, 0 },
+  { "-chdir", "--chdir", 130, 1 },
   { "-t", "--terminal", 120, 1 },
   { "-nw", "--no-window-system", 110, 0 },
   { "-nw", "--no-windows", 110, 0 },
diff --git a/src/xsmfns.c b/src/xsmfns.c
index ec5ca3b1a9f..48fd1b7e76d 100644
--- a/src/xsmfns.c
+++ b/src/xsmfns.c
@@ -90,6 +90,10 @@ Lisp_Object Vx_session_previous_id;
 
 #define NOSPLASH_OPT "--no-splash"
 
+/* The option to make Emacs start in the given directory.  */
+
+#define CHDIR_OPT "--chdir="
+
 static void
 ice_connection_closed ()
 {
@@ -206,7 +210,7 @@ smc_save_yourself_CB (smcConn,
   int props_idx = 0;
 
   char *cwd = NULL;
-  char *smid_opt;
+  char *smid_opt, *chdir_opt = NULL;
 
   /* How to start a new instance of Emacs.  */
   props[props_idx] = &prop_ptr[props_idx];
@@ -228,11 +232,12 @@ smc_save_yourself_CB (smcConn,
   props[props_idx]->vals[0].value = SDATA (Vinvocation_name);
   ++props_idx;
 
-  /* How to restart Emacs (i.e.: /path/to/emacs --smid=xxxx --no-splash).  */
+  /* How to restart Emacs.  */
   props[props_idx] = &prop_ptr[props_idx];
   props[props_idx]->name = SmRestartCommand;
   props[props_idx]->type = SmLISTofARRAY8;
-  props[props_idx]->num_vals = 3; /* /path/to/emacs, --smid=xxx --no-splash  */
+  /* /path/to/emacs, --smid=xxx --no-splash --chdir=dir */
+  props[props_idx]->num_vals = 4;
   props[props_idx]->vals = &values[val_idx];
   props[props_idx]->vals[0].length = strlen (emacs_program);
   props[props_idx]->vals[0].value = emacs_program;
@@ -246,7 +251,19 @@ smc_save_yourself_CB (smcConn,
 
   props[props_idx]->vals[2].length = strlen (NOSPLASH_OPT);
   props[props_idx]->vals[2].value = NOSPLASH_OPT;
-  val_idx += 3;
+
+  cwd = get_current_dir_name ();
+  if (cwd) 
+    {
+      chdir_opt = xmalloc (strlen (CHDIR_OPT) + strlen (client_id) + 1);
+      strcpy (chdir_opt, CHDIR_OPT);
+      strcat (chdir_opt, cwd);
+
+      props[props_idx]->vals[3].length = strlen (chdir_opt);
+      props[props_idx]->vals[3].value = chdir_opt;
+    }
+
+  val_idx += cwd ? 4 : 3;
   ++props_idx;
 
   /* User id.  */
@@ -259,7 +276,6 @@ smc_save_yourself_CB (smcConn,
   props[props_idx]->vals[0].value = SDATA (Vuser_login_name);
   ++props_idx;
 
-  cwd = get_current_dir_name ();
 
   if (cwd)
     {
@@ -277,6 +293,7 @@ smc_save_yourself_CB (smcConn,
   SmcSetProperties (smcConn, props_idx, props);
 
   xfree (smid_opt);
+  xfree (chdir_opt);
 
   free (cwd);
 
diff --git a/src/xterm.c b/src/xterm.c
index 4f191922561..ec550100cea 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -7936,8 +7936,8 @@ x_connection_closed (dpy, error_message)
       if (terminal_list->next_terminal == NULL)
         {
           fprintf (stderr, "%s\n", error_msg);
-          shut_down_emacs (0, 0, Qnil);
-          exit (70);
+          Fkill_emacs (make_number (70));
+          /* NOTREACHED */
         }
       xg_display_close (dpyinfo->display);
 #endif
@@ -7963,8 +7963,8 @@ x_connection_closed (dpy, error_message)
   if (terminal_list == 0)
     {
       fprintf (stderr, "%s\n", error_msg);
-      shut_down_emacs (0, 0, Qnil);
-      exit (70);
+      Fkill_emacs (make_number (70));
+      /* NOTREACHED */
     }
 
   /* Ordinary stack unwind doesn't deal with these.  */