GitHub Atom: How to apply a particular syntax highlighting to some files based on name

Question

How can I configure GitHub\'s Atom to make it automatically set a particular syntax highlighting to filenames based on name and/or extensions?

Specific

Answer 1

As of Atom 1.0.8 this is now possible without the file-types package, using a core feature. To achieve this, open the config.cson file, and add a section like the following:

"*": # Other config core: customFileTypes: "source.ruby": [ "Podfile" ]

There is guidance on finding the language scope name here: https://flight-manual.atom.io/using-atom/sections/basic-customization/#finding-a-languages-scope-name

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This is now possible with the file-types third-party package. I used the following syntax:

"*": # Other config "file-types": "^Podfile$": "source.ruby"

This should be placed in the config.cson file.

Here's an excerpt from the readme:

file-types package

Specify additional file types for languages.

Extension Matchers

Drop the dot before the extension to use extension matchers.

For example, you can associate .ex_em_el with text.xml in your config.cson as follows:

'file-types': 'ex_em_el': 'text.xml'

RegExp Matchers

You can match with regular expressions, too. Most JavaScript regular expressions should work; but, the system looks for a dot (.), a caret (^) at the start, or a dollar ($) to identify RegExp matchers.

For example, you can associate /.*_steps\.rb$/ with source.cucumber.steps in your config.cson as follows:

'file-types': '_steps\\.rb$': 'source.cucumber.steps'

NOTE: Extension Matchers take priority over RegExp Matchers.