Local configuration loader

config-bits/09-local-config.vim

@@ -0,0 +1,65 @@
+" Attempt to find a local configuration or configuration directory
+
+" Clear various things that could be here from a previous execution
+if exists( "g:vim_local" )
+	unlet g:vim_local
+endif
+if exists( "g:vim_local_path" )
+	unlet g:vim_local_path
+endif
+if exists( "*CheckAndSignLocalVimrc" )
+	function! CheckAndSignLocalVimrc(fname)
+	endfunction
+endif
+augroup LocalConfigurationSigning
+	autocmd!
+augroup END
+
+" Always define this function; it tries to access data from either g:vim_local
+" if that is defined, or from a global variable otherwise
+function! GetConfigValue(name,...)
+	if exists( "g:vim_local['" . a:name . "']" )
+		return g:vim_local[ a:name ]
+	endif
+	if exists( "g:" . a:name )
+		execute "return g:" . a:name
+	endif
+	return a:1
+endfunction
+
+" Get a vardata path, either from the local configuration or from
+" g:vim_vardata.
+function! GetVardataPath(name)
+	if exists( "g:vim_local['vardata']" )
+		return g:vim_local['vardata'] . "/" . a:name
+	endif
+	return g:vim_vardata . "/" . a:name
+endfunction
+
+" We need signature handling abilities for that
+if !exists( "g:vim_keys" )
+	finish
+endif
+
+" Check if the local directory and local vimrc exist
+if !( isdirectory( ".vim.local" ) && filereadable( ".vim.local/vimrc" ) )
+	finish
+endif
+echo " "
+echo "Found local configuration in .vim.local ; validating..."
+
+" Verify the vimrc's signature
+try
+	call CheckSignature( ".vim.local/vimrc" , ".vim.local/signature" )
+catch /.*/
+	echo " "
+	echo " -> SIGNATURE VERIFICATION FAILED"
+	echo " "
+	finish
+endtry
+echo " -> Using local configuration."
+echo " "
+let g:vim_local_path = fnamemodify( ".vim.local" , ":p" )
+
+" Source it
+source .vim.local/vimrc