Category Archives: Tips

Your Git Submodule and You

By John Croisant | Published: 2009-08-09

(Pssst. Check out my Git Submodules Cheat Sheet for a quick reference.) This post is the result of my investigations into how Git submodules work and how to use them. My goal in investigating submodules was to decide if they would be an effective way to share specs among the various Ruby FFI implementations (Ruby-FFI [...]

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Git tip: Fix a mistake in a previous commit

By John Croisant | Published: 2008-06-22

Here’s a handy tip that shows off one of the little conveniences that makes me love Git. In Subversion, if you made a mistake in one of your commits — too bad. At best, you might be able to edit the revision log, if your repository was configured to allow that (Sourceforge repositories aren’t). In [...]

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Emacs tip: Using lisp expressions in replace-regexp

By John Croisant | Published: 2008-02-16

Miscellaneous tip of the day, mostly putting it here so I’ll remember it later! In recent versions of Emacs, you can use lisp expressions to process the replacement result when running a search/replace regexp command (e.g. replace-regexp). The syntax for that is: \,(expression …) The real handy part is that \0, \1, …, \9 work [...]

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