package management

core/persist.lua

@@ -0,0 +1,22 @@
+-- saves a virtual file to disk
+
+_G.requireInjector(_ENV)
+
+local Util = require('util')
+
+local fs    = _G.fs
+local shell = _ENV.shell
+
+local args = { ... }
+local fileName = args[1] and
+                 shell.resolve(args[1]) or
+                 error('Syntax: persist <file name>')
+
+local c = Util.readFile(fileName) or error('Unable to read file')
+
+-- ensure it is writable - if not an error is thrown
+Util.writeFile(fileName, '')
+fs.delete(fileName)
+Util.writeFile(fileName, c)
+
+print('Saved')