Timestamped backups in TextWrangler [#FF00AA]

4 sept. 2009

TextWrangler 3.0 removed the option to hit a File menu command and create a backup of the file you’re editing, replacing it with a global preference of either keeping backups of every single edit you make, or no backup at all.

That’s damn annoying, because I relied on that option as my own primitive CVS, making a backup of a file whenever I was about to make important edits. (Like I said, primitive, I know, but it’s convenient.)

So here’s how you can restore that functionality, using AppleScript. Go to the Scripts menu (the little scroll icon near Help — I think it’s enabled by default?) and select “Open Scripts Folder”; make a copy of an existing script, rename it to something like “00) Make Timestamped Backup.scpt” (the “00)” won’t be displayed, it serves to order the scripts in the menu), double-click the file to open it in Script Editor, and replace its contents with the following:


tell application "TextWrangler"
set fileAlias to (file of document 1 of window 1)set filePath to POSIX path of (fileAlias as text)
end tell
 
tell application "Finder"
set fileName to name of fileAlias
set fileExtension to name extension of fileAlias
set fileBasePath to text 1 thru -((length of fileExtension) + 2) of filePath
 
do shell script "cp " & fileBasePath & "." & fileExtension & " " & fileBasePath & "." & "`date +’%Y-%m-%d.%H-%M-%S’`" & "." & fileExtension
end tell
 
tell application "TextWrangler"
display dialog "Backed up " & fileName & "." buttons {"Ok"} default button 1
end tell

(Make sure you don’t mangle the assortment of double quotes, single quotes and backquotes on that “do shell script” line.)

Now your TextWrangler has a “Make Timestamped Backup” command, ready to use, that will do just that and not ask you any questions; it will just display a confirmation dialog when it’s done. You can also use the Scripts palette (Window menu, Palettes, Scripts) to give it a hotkey.

2009/09/04 - 16:44

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