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I'd like to run a function/set of functions when I open a specific file. Just like file type hooks, but for a specific file.

For instance, when I open foo.bar, I'd like some functions to run.

Maybe those functions are specified on my init.el or in the file itself; I don't mind either.

Is there some built in functionality?

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Just do it in a find-file-hook function. Just have the function test for your file, and if the file to visit is different then do nothing.

C-h v find-file-hook tells us:

find-file-hook is a variable defined in files.el.

Its value is

(global-eldoc-mode-check-buffers global-font-lock-mode-check-buffers epa-file-find-file-hook vc-refresh-state)

Original value was nil

List of functions to be called after a buffer is loaded from a file.

The buffer’s local variables (if any) will have been processed before the functions are called. This includes directory-local variables, if any, for the file’s directory.

The hook is run with the buffer with the visited file current, so (buffer-file-name) should give you the name of the file.

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  • Hello Drew, thanks for the answer. How should I obtain the file name on the function that I'm gonna use as a hook? buffer-file-name? Commented Mar 13 at 21:40
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    Yes. I updated the answer with that info.
    – Drew
    Commented Mar 14 at 1:51

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