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-rw-r--r--vim/plugin/auto_backupdir.vim56
1 files changed, 56 insertions, 0 deletions
diff --git a/vim/plugin/auto_backupdir.vim b/vim/plugin/auto_backupdir.vim
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+"
+" auto_backupdir.vim: Configure 'backupdir' automatically, including trying
+" hard to create it.
+"
+" Author: Tom Ryder <tom@sanctum.geek.nz>
+" License: Same as Vim itself
+"
+if exists('g:loaded_auto_backupdir')
+ \ || &compatible
+ finish
+endif
+let g:loaded_auto_backupdir = 1
+
+" Define the backup path we want
+if exists('$VIM_BACKUPDIR')
+ let s:backupdir = $VIM_BACKUPDIR
+else
+
+ " This is imperfect in that it will break if you have a backslashed comma in
+ " the first component of your &runtimepath, but if you're doing that, you
+ " probably already have way bigger problems
+ let s:backupdir
+ \ = strpart(&runtimepath, 0, stridx(&runtimepath, ','))
+ \ . '/backup'
+endif
+
+" If the prospective backup directory does not exist, try hard to create it
+if !isdirectory(expand(s:backupdir))
+
+ " Try Vim's native mkdir() first
+ if exists('*mkdir')
+ silent! call mkdir(expand(s:backupdir), 'p', 0700)
+
+ " Failing that, use an OS-dependent command
+ " (Fortunately, Unix and Windows are the only OS types in the world)
+ elseif has('unix')
+ silent! execute '!mkdir -m 0700 -p '
+ \ . shellescape(expand(s:backupdir))
+ elseif has('win32') || has('win64')
+ silent! execute '!mkdir '
+ \ . shellescape(expand(s:backupdir))
+ endif
+
+endif
+
+" If the directory exists after that...
+if isdirectory(expand(s:backupdir))
+
+ " Set the backup directory and turn backups on
+ execute 'set backupdir^=' . s:backupdir . '//'
+ set backup
+
+" If not, give up and raise an error
+else
+ echoerr 'Could not create backupdir ' . s:backupdir
+endif