etags-update-mode

Just a few days ago I wrote my first EMACS minor-mode, called etags-update-mode. It updates your TAGS file on save. It’s heavily inspired by another package/minor mode with the same name by Matt Keller.

In order to update the tags for a file on save, Matt’s etags-update-mode calls a perl file to delete any previous tags for a specific file in a TAGS file before it appends the new definitions in the file. Also, with that package the minor mode is defined as a global minor mode.

I wanted the functionality that the package provided, but I didn’t want it to be a global minor mode (the only global minor mode that I’ve used that I’m aware of and that I like having everywhere is YaSnippet). I also didn’t see why there should be a reliance on perl. I wanted to do it all in elisp.

So I wrote a much simpler version of etags-update-mode that is a regular minor mode and does all it’s work in EMACS. I’ll be updating it as I continue to use it.

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