Enable opening last used session when starting Vim (thanks to James Cox for suggestion)

Author: xolox

README.md

@@ -74,7 +74,7 @@ Execute this command to view the Vim script generated for a session. This comman
 
 ### The `sessionoptions` setting
 
-Because the `session.vim` plug-in uses Vim's [:mksession][mksession] command you can change how it works by setting ['sessionoptions'](http://vimdoc.sourceforge.net/htmldoc/options.html#%27sessionoptions%27) in your [vimrc script] [vimrc]:
+Because the `session.vim` plug-in uses Vim's [:mksession][mksession] command you can change how it works by setting ['sessionoptions'](http://vimdoc.sourceforge.net/htmldoc/options.html#%27sessionoptions%27) in your [vimrc script] [vimrc], for example:
 
     " If you only want to save the current tab page:
     set sessionoptions-=tabpages
@@ -94,6 +94,10 @@ By default this option is set to false (0). This means that when you start Vim w
 
 By default this option is set to false (0). When you've opened a session and you quit Vim, the `session.vim` plug-in will ask whether you want to save the changes to your session. Set this option to true (1) to always automatically save open sessions when you quit Vim.
 
+### The `g:session_default_to_last` option
+
+By default this option is set to false (0). When you set this option to true (1) and you start Vim, the session plug-in will open your last used session instead of the default session. Note that the session plug-in will still show you the dialog asking whether you want to restore the last used session. To get rid of the dialog you have to set `g:session_autoload` to true (1).
+
 ### The `g:loaded_session` option
 
 This variable isn't really an option but if you want to avoid loading the `session.vim` plug-in you can set this variable to any value in your [vimrc script] [vimrc]:
@@ -105,8 +109,8 @@ This variable isn't really an option but if you want to avoid loading the `sessi
 Vim's [:mksession][mksession] command isn't fully compatible with plug-ins that create buffers with generated content and because of this `session.vim` includes specific workarounds for such plug-ins:
 
  * [NERD tree](http://www.vim.org/scripts/script.php?script_id=1658) and [Project](http://www.vim.org/scripts/script.php?script_id=69) windows are supported;
- * When [shell.vim](http://peterodding.com/code/vim/shell/) is installed Vim's full-screen state is persisted.
- * The [netrw](http://vimdoc.sourceforge.net/htmldoc/pi_netrw.html#netrw-start) and [taglist.vim](http://www.vim.org/scripts/script.php?script_id=273) plug-ins support sessions out of the box;
+ * When [shell.vim](http://peterodding.com/code/vim/shell/) is installed Vim's full-screen state is persisted;
+ * The [netrw](http://vimdoc.sourceforge.net/htmldoc/pi_netrw.html#netrw-start) and [taglist.vim](http://www.vim.org/scripts/script.php?script_id=273) plug-ins support sessions out of the box.
 
 If your favorite plug-in doesn't work with `session.vim` drop me a mail and I'll see what I can do. Please include a link to the plug-in in your e-mail so that I can install and test the plug-in.
 

autoload/xolox/session.vim

@@ -1,6 +1,6 @@
 " Vim script
 " Author: Peter Odding
-" Last Change: May 12, 2011
+" Last Change: May 26, 2011
 " URL: http://peterodding.com/code/vim/session/
 
 let s:script = expand('<sfile>:p:~')
@@ -187,12 +187,14 @@ function! xolox#session#auto_load() " {{{2
         endif
       endfor
     endif
-    " Check whether the default session should be loaded.
-    let path = xolox#session#name_to_path('default')
+    " Default to the last used session or the session named `default'?
+    let session = s:last_session_recall()
+    let path = xolox#session#name_to_path(session)
     if filereadable(path) && !s:session_is_locked(path)
-      let msg = "Do you want to restore your default editing session?"
-      if s:prompt(msg, 'g:session_autoload')
-        OpenSession default
+      let msg = "Do you want to restore your %s editing session?"
+      let label = session != 'default' ? 'last used' : 'default'
+      if s:prompt(printf(msg, label), 'g:session_autoload')
+        execute 'OpenSession' fnameescape(session)
       endif
     endif
   endif
@@ -280,6 +282,7 @@ function! xolox#session#open_cmd(name, bang) abort " {{{2
       call s:lock_session(path)
       execute 'source' fnameescape(path)
       unlet! s:session_is_dirty
+      call s:last_session_persist(name)
       call xolox#misc#timer#stop("%s: Opened %s session in %s.", s:script, string(name), starttime)
       call xolox#misc#msg#info("%s: Opened %s session from %s.", s:script, string(name), fnamemodify(path, ':~'))
     endif
@@ -315,6 +318,7 @@ function! xolox#session#save_cmd(name, bang) abort " {{{2
       let msg = "%s: Failed to save %s session to %s!"
       call xolox#misc#msg#warn(msg, s:script, string(name), friendly_path)
     else
+      call s:last_session_persist(name)
       call xolox#misc#timer#stop("%s: Saved %s session in %s.", s:script, string(name), starttime)
       call xolox#misc#msg#info("%s: Saved %s session to %s.", s:script, string(name), friendly_path)
       let v:this_session = path
@@ -477,6 +481,31 @@ function! xolox#session#complete_names(arg, line, pos) " {{{2
   return map(names, 'fnameescape(v:val)')
 endfunction
 
+" Default to last used session: {{{2
+
+function! s:last_session_file()
+  let directory = xolox#misc#path#absolute(g:session_directory)
+  return xolox#misc#path#merge(directory, 'last-session.txt')
+endfunction
+
+function! s:last_session_persist(name)
+  if g:session_default_to_last
+    if writefile([a:name], s:last_session_file()) != 0
+      call xolox#misc#msg#warn("Failed to persist name of last used session!")
+    endif
+  endif
+endfunction
+
+function! s:last_session_recall()
+  if g:session_default_to_last
+    let fname = s:last_session_file()
+    if filereadable(fname)
+      return readfile(fname)[0]
+    endif
+  endif
+  return 'default'
+endfunction
+
 " Lock file management: {{{2
 
 if !exists('s:lock_files')

doc/session.txt

@@ -9,9 +9,9 @@ and the files they contain.
 To persist your current editing session you can execute the |:SaveSession|
 command. If you don't provide a name for the session 'default' is used. You're
 free to use whatever characters you like in session names. When you want to
-restore your session simply execute |:OpenSession|. Again the name 'default' is
-used if you don't provide one. When a session is active, has been changed and
-you quit Vim you'll be prompted whether you want to save the open session
+restore your session simply execute |:OpenSession|. Again the name 'default'
+is used if you don't provide one. When a session is active, has been changed
+and you quit Vim you'll be prompted whether you want to save the open session
 before quitting Vim:
 
     Screenshot of auto-save prompt, see reference [1]
@@ -32,10 +32,12 @@ Vim plug-ins:
 
 The session scripts created by this plug-in are stored in the directory
 '~/.vim/sessions' (on UNIX) or '~\vimfiles\sessions' (on Windows) but you can
-change the location by setting |g:session_directory|. If you're curious what the
-session scripts generated by 'session.vim' look like see the sample below [3].
+change the location by setting |g:session_directory|. If you're curious what
+the session scripts generated by 'session.vim' look like see the sample below
+[3].
 
-==============================================================================
+===============================================================================
+                                                          *session-installation*
 Installation ~
 
 Unzip the most recent ZIP archive [4] file inside your Vim profile directory
@@ -44,27 +46,28 @@ restart Vim and execute the command ':helptags ~/.vim/doc' (use ':helptags
 ~\vimfiles\doc' instead on Windows). After you restart Vim the following
 commands will be available to you:
 
-==============================================================================
+===============================================================================
+                                                              *session-commands*
 Commands ~
 
-------------------------------------------------------------------------------
+-------------------------------------------------------------------------------
 The *:SaveSession* command
 
 This command saves your current editing session just like Vim's built-in
 |:mksession| command does. The difference is that you don't pass a full pathname
-as argument but just a name, any name really. Press <Tab> to get completion of
-existing session names. If you don't provide an argument the name 'default' is
-used, unless an existing session is open in which case the name of that
+as argument but just a name, any name really. Press '<Tab>' to get completion
+of existing session names. If you don't provide an argument the name 'default'
+is used, unless an existing session is open in which case the name of that
 session will be used.
 
 If the session you're trying to save is already active in another Vim instance
-you'll get a warning and nothing happens. You can use use a bang (!) as in
+you'll get a warning and nothing happens. You can use a bang (!) as in
 ':SaveSession! ...' to ignore the warning and save the session anyway.
 
 As mentioned earlier your session script will be saved in the directory
 pointed to by |g:session_directory|.
 
-------------------------------------------------------------------------------
+-------------------------------------------------------------------------------
 The *:OpenSession* command
 
 This command is basically |:source| in disguise, but it supports tab completion
@@ -82,14 +85,14 @@ a list:
     Type number and <Enter> or click with mouse (empty cancels):
 
 If the session you're trying to open is already active in another Vim instance
-you'll get a warning and nothing happens. You can use use a bang (!) as in
+you'll get a warning and nothing happens. You can use a bang (!) as in
 ':OpenSession! ...' to ignore the warning and open the session anyway.
 
 Note also that when you use a bang (!) right after the command name existing
 tab pages and windows are closed, discarding any changes in the files you were
 editing!
 
-------------------------------------------------------------------------------
+-------------------------------------------------------------------------------
 The *:RestartVim* command
 
 This command saves your current editing session, restarts Vim and restores
@@ -103,7 +106,7 @@ after Vim is restarted and your session has been restored. This makes it easy
 to perform manual tests which involve restarting Vim, e.g. ':RestartVim | edit
 /path/to/file | call MyTest()'.
 
-------------------------------------------------------------------------------
+-------------------------------------------------------------------------------
 The *:CloseSession* command
 
 This command closes all but the current tab page and window and then edits a
@@ -114,41 +117,41 @@ Note that when you use a bang (!) right after the command name existing tab
 pages and windows are closed, discarding any changes in the files you were
 editing!
 
-------------------------------------------------------------------------------
+-------------------------------------------------------------------------------
 The *:DeleteSession* command
 
 Using this command you can delete any of the sessions created by this plug-in.
 If the session you are trying to delete is currently active in another Vim
-instance you'll get a warning and nothing happens. You can use use a bang (!)
-as in ':DeleteSession! ...' to ignore the warning and delete the session
-anyway.
+instance you'll get a warning and nothing happens. You can use a bang (!) as
+in ':DeleteSession! ...' to ignore the warning and delete the session anyway.
 
 Note that this command only deletes the session script, it leaves your open
 tab pages and windows exactly as they were.
 
-------------------------------------------------------------------------------
+-------------------------------------------------------------------------------
 The *:ViewSession* command
 
 Execute this command to view the Vim script generated for a session. This
 command is useful when you need to review the generated Vim script repeatedly,
 for example while debugging or modifying the 'session.vim' plug-in.
 
-==============================================================================
+===============================================================================
+                                                               *session-options*
 Options ~
 
-------------------------------------------------------------------------------
+-------------------------------------------------------------------------------
 The *sessionoptions* setting
 
 Because the 'session.vim' plug-in uses Vim's |:mksession| command you can change
-how it works by setting ||sessionoptions|| in your |vimrc| script:
+how it works by setting |'sessionoptions'| in your |vimrc| script, for example:
 >
     " If you only want to save the current tab page:
     set sessionoptions-=tabpages
->
+    
     " If you don't want help windows to be restored:
     set sessionoptions-=help
 
-------------------------------------------------------------------------------
+-------------------------------------------------------------------------------
 The *g:session_directory* option
 
 This option controls the location of your session scripts. Its default value
@@ -157,7 +160,7 @@ don't mind the default you don't have to do anything; the directory will be
 created for you. Note that a leading '~' is expanded to your current home
 directory ('$HOME' on UNIX, '%USERPROFILE%' on Windows).
 
-------------------------------------------------------------------------------
+-------------------------------------------------------------------------------
 The *g:session_autoload* option
 
 By default this option is set to false (0). This means that when you start Vim
@@ -166,15 +169,24 @@ without opening any files and the 'default' session script exists, the
 session. When you set this option to true (1) and you start Vim without
 opening any files the default session will be restored without a prompt.
 
-------------------------------------------------------------------------------
+-------------------------------------------------------------------------------
 The *g:session_autosave* option
 
 By default this option is set to false (0). When you've opened a session and
 you quit Vim, the 'session.vim' plug-in will ask whether you want to save the
 changes to your session. Set this option to true (1) to always automatically
 save open sessions when you quit Vim.
 
-------------------------------------------------------------------------------
+-------------------------------------------------------------------------------
+The *g:session_default_to_last* option
+
+By default this option is set to false (0). When you set this option to true
+(1) and you start Vim, the session plug-in will open your last used session
+instead of the default session. Note that the session plug-in will still show
+you the dialog asking whether you want to restore the last used session. To
+get rid of the dialog you have to set |g:session_autoload| to true (1).
+
+-------------------------------------------------------------------------------
 The *g:loaded_session* option
 
 This variable isn't really an option but if you want to avoid loading the
@@ -183,23 +195,27 @@ script:
 >
     :let g:loaded_session = 1
 
-==============================================================================
+===============================================================================
+                                     *session-compatibility-with-other-plug-ins*
 Compatibility with other plug-ins ~
 
 Vim's |:mksession| command isn't fully compatible with plug-ins that create
 buffers with generated content and because of this 'session.vim' includes
 specific workarounds for such plug-ins:
 
- * NERD tree [6] and Project [7] windows are supported;
- * When shell.vim [8] is installed Vim's full-screen state is persisted.
- * The netrw (see |netrw-start|) and taglist.vim [9] plug-ins support sessions
-   out of the box;
+ - NERD tree [6] and Project [7] windows are supported;
+
+ - When shell.vim [8] is installed Vim's full-screen state is persisted;
+
+ - The netrw (see |netrw-start|) and taglist.vim [9] plug-ins support sessions
+   out of the box.
 
 If your favorite plug-in doesn't work with 'session.vim' drop me a mail and
 I'll see what I can do. Please include a link to the plug-in in your e-mail so
 that I can install and test the plug-in.
 
-==============================================================================
+===============================================================================
+                                                          *session-known-issues*
 Known issues ~
 
 Recently this plug-in switched from reimplementing |:mksession| to actually
@@ -210,21 +226,24 @@ it turns out that bolting on support for these after the fact is going to
 complicate the plug-in significantly (in other words, I'm working on it but it
 might take a while...)
 
-==============================================================================
+===============================================================================
+                                                               *session-contact*
 Contact ~
 
 If you have questions, bug reports, suggestions, etc. the author can be
 contacted at peter@peterodding.com. The latest version is available at
 http://peterodding.com/code/vim/session/ and http://github.com/xolox/vim-session.
 If you like the script please vote for it on Vim Online [10].
 
-==============================================================================
+===============================================================================
+                                                               *session-license*
 License ~
 
-This software is licensed under the MIT license [11].
-Copyright 2010 Peter Odding <peter@peterodding.com>.
+This software is licensed under the MIT license [11]. Copyright 2010 Peter
+Odding <peter@peterodding.com>.
 
-==============================================================================
+===============================================================================
+                                                         *sample-session-script*
 Sample session script ~
 
 Here's an example session script generated by the 'session.vim' plug-in while
@@ -323,13 +342,14 @@ I was editing the plug-in itself in Vim:
     doautoall SessionLoadPost
     unlet SessionLoad
 
-==============================================================================
+===============================================================================
+                                                            *session-references*
 References ~
 
 [1] http://peterodding.com/code/vim/session/autosave.png
 [2] http://peterodding.com/code/vim/session/autoopen.png
 [3] http://peterodding.com/code/vim/session/#sample_session_script
-[4] http://peterodding.com/code/vim/downloads/session
+[4] http://peterodding.com/code/vim/downloads/session.zip
 [5] http://peterodding.com/code/vim/reload/
 [6] http://www.vim.org/scripts/script.php?script_id=1658
 [7] http://www.vim.org/scripts/script.php?script_id=69
@@ -338,4 +358,4 @@ References ~
 [10] http://www.vim.org/scripts/script.php?script_id=3150
 [11] http://en.wikipedia.org/wiki/MIT_License
 
-vim: syntax=help nospell
+vim: ft=help

plugin/session.vim

@@ -1,8 +1,8 @@
 " Vim script
 " Author: Peter Odding
-" Last Change: May 25, 2011
+" Last Change: May 26, 2011
 " URL: http://peterodding.com/code/vim/session/
-" Version: 1.4.1
+" Version: 1.4.2
 
 " Support for automatic update using the GLVS plug-in.
 " GetLatestVimScripts: 3150 1 :AutoInstall: session.zip
@@ -22,6 +22,13 @@ if !exists('g:session_autosave')
   let g:session_autosave = 0
 endif
 
+" The session plug-in can automatically open sessions in three ways: based on
+" Vim's server name, by remembering the last used session or by opening the
+" session named `default'. Enable this option to use the second approach.
+if !exists('g:session_default_to_last')
+  let g:session_default_to_last = 0
+endif
+
 " The default directory where session scripts are stored.
 if !exists('g:session_directory')
   if xolox#misc#os#is_win()