Create Changelog when performing BundleInstall!

Keeps track of the current commit with a vundle_update tag before
perfoming an update and adds all commits pulled in the update to a
Changelog accessible via pressing 'u' after BundleInstall! completes.

README.md

@@ -41,7 +41,7 @@
      Bundle 'git://git.wincent.com/command-t.git'
      " ...
 
-     filetype plugin indent on     " required! 
+     filetype plugin indent on     " required!
      "
      " Brief help
      " :BundleList          - list configured bundles
@@ -62,7 +62,7 @@
      *Windows users* see [Vundle for Windows](https://github.com/gmarik/vundle/wiki/Vundle-for-Windows)
 
      Installing requires [Git] and triggers [Git clone](http://gitref.org/creating/#clone) for each configured repo to `~/.vim/bundle/`.
-     
+
 4. Consider [donating](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=T44EJZX8RBUWY)
 
 [*Thank you*](http://j.mp/rSbm01) for supporting this project! )
@@ -145,7 +145,7 @@ see [wiki](/gmarik/vundle/wiki)
 [all available vim scripts]:http://vim-scripts.org/vim/scripts.html
 
 [install]:https://github.com/gmarik/vundle/blob/master/doc/vundle.txt#L110-124
-[update]:https://github.com/gmarik/vundle/blob/master/doc/vundle.txt#L128-133
-[search]:https://github.com/gmarik/vundle/blob/master/doc/vundle.txt#L135-157
-[clean]:https://github.com/gmarik/vundle/blob/master/doc/vundle.txt#L167-179
-[interactive mode]:https://github.com/gmarik/vundle/blob/master/doc/vundle.txt#L183-209
+[update]:https://github.com/gmarik/vundle/blob/master/doc/vundle.txt#L128-134
+[search]:https://github.com/gmarik/vundle/blob/master/doc/vundle.txt#L136-158
+[clean]:https://github.com/gmarik/vundle/blob/master/doc/vundle.txt#L168-180
+[interactive mode]:https://github.com/gmarik/vundle/blob/master/doc/vundle.txt#L184-210

autoload/vundle.vim

@@ -37,6 +37,8 @@ endif
 
 func! vundle#rc(...) abort
   let g:bundle_dir = len(a:000) > 0 ? expand(a:1, 1) : expand('$HOME/.vim/bundle', 1)
+  let g:updated_bundles = []
   let g:vundle_log = []
+  let g:vundle_changelog = ['Updated Bundles:']
   call vundle#config#init()
 endf

autoload/vundle/installer.vim

@@ -204,6 +204,7 @@ func! s:sync(bang, bundle) abort
       let cmd = substitute(cmd, '^cd ','cd /d ','')  " add /d switch to change drives
       let cmd = '"'.cmd.'"'                          " enclose in quotes
     endif
+    call s:add_update_tag(a:bundle)
   else
     let cmd = 'git clone '.a:bundle.uri.' '.shellescape(a:bundle.path())
   endif
@@ -222,6 +223,7 @@ func! s:sync(bang, bundle) abort
     return 'todate'
   end
 
+  call s:add_to_updated_bundle_list(a:bundle)
   return 'updated'
 endf
 
@@ -229,6 +231,19 @@ func! s:system(cmd) abort
   return system(a:cmd)
 endf
 
+func! s:add_update_tag(bundle) abort
+  call s:system('cd '.shellescape(a:bundle.path()).
+        \  ' && git tag -a vundle_update -m "Last Vundle Update" -f')
+endfunc
+
+func! s:add_to_updated_bundle_list(bundle) abort
+  let current_commit = s:system('cd '.shellescape(a:bundle.path()).' && git rev-list HEAD')
+  let initial_commit = s:system('cd '.shellescape(a:bundle.path()).' && git rev-list vundle_update')
+  if (0 == v:shell_error) && (initial_commit != current_commit)
+    call add(g:updated_bundles, a:bundle)
+  endif
+endfunc
+
 func! s:log(str) abort
   let fmt = '%y%m%d %H:%M:%S'
   call add(g:vundle_log, '['.strftime(fmt).'] '.a:str)

autoload/vundle/scripts.vim

@@ -33,6 +33,33 @@ func! s:view_log()
   wincmd P | wincmd H
 endf
 
+func! s:create_changelog() abort
+  for bundle in g:updated_bundles
+    let updates = system('cd '.shellescape(bundle.path()).
+          \              ' && git log --pretty=format:"%s   %an, %ar" --graph'.
+          \              ' vundle_update..HEAD')
+    call add(g:vundle_changelog, '')
+    call add(g:vundle_changelog, 'Updated Bundle: '.bundle.name)
+    for update in split(updates, '\n')
+      let update = substitute(update, '\s\+$', '', '')
+      call add(g:vundle_changelog, '  '.update)
+    endfor
+  endfor
+endf
+
+func! s:view_changelog()
+  call s:create_changelog()
+
+  if !exists('g:vundle_changelog_file')
+    let g:vundle_changelog_file = tempname()
+  endif
+
+  call writefile(g:vundle_changelog, g:vundle_changelog_file)
+  silent pedit `=g:vundle_changelog_file`
+
+  wincmd P | wincmd H
+endf
+
 func! vundle#scripts#bundle_names(names)
   return map(copy(a:names), ' printf("Bundle ' ."'%s'".'", v:val) ')
 endf
@@ -80,6 +107,7 @@ func! vundle#scripts#view(title, headers, results)
 
   com! -buffer -nargs=0 VundleLog call s:view_log()
 
+  com! -buffer -nargs=0 VundleChangelog call s:view_changelog()
 
   nnoremap <buffer> q :silent bd!<CR>
   nnoremap <buffer> D :exec 'Delete'.getline('.')<CR>
@@ -91,6 +119,7 @@ func! vundle#scripts#view(title, headers, results)
   nnoremap <buffer> I :exec 'InstallAndRequire'.substitute(getline('.'), '^Bundle ', 'Bundle! ', '')<CR>
 
   nnoremap <buffer> l :VundleLog<CR>
+  nnoremap <buffer> u :VundleChangelog<CR>
   nnoremap <buffer> h :h vundle<CR>
   nnoremap <buffer> ? :norm h<CR>
 

doc/vundle.txt

@@ -132,6 +132,7 @@ run >
     :BundleInstall!             " NOTE: bang(!)
 
 installs or updates configured scripts.
+press u after updates complete to see the changelog of all updated bundles.
 
 4.4 SEARCHING ~
                                        *vundle-scripts-search* *BundleSearch*
@@ -175,7 +176,7 @@ confirms removal of unused script-dirs from `.vim/bundle/`.
 
                                                             *BundleClean!*
 >
-    :BundleClean! 
+    :BundleClean!
 
 removes unused dirs with no questions.