Use ripgrep or ag in project.el?
reddit / emacs

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shmulkinator · 2022-05-25 14:39

Is it possible to use `ripgrep` or `ag` in `project.el` for finding
matches in files?  I looked around a bit and don't see how that can be
done, but that may say more about my Google/Elisp-fu than the ability
to do that.

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_viz_ · 2022-05-25 15:28

From a quick glance at project.el, it relies on xref for C-x p g
(project-find-regexp).  So you need to customise xref-search-program I
suppose.

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cark · 2022-05-25 16:48

If by any chance you are using helm. It has an helm-projectile-ag
command which i occasionally use to good effect. If not, maybe you
could look into its source code and see how it works.

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grimscythe_ · 2022-05-25 16:58

This. Alternatively helm-do-ag and select the root folder from where
the search begins.

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shmulkinator · 2022-05-25 17:05

Thanks for the suggestion. For better or worse, I don't use helm.

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s-kostyaev · 2022-05-25 17:05

With `rg.el` you can do something like this:
```
(rg-define-search my-grep-project :query ask :format regexp :files
"everything" :case-fold-search smart :dir
  (if (project-current) (project-root (project-current))
    default-directory)
  :confirm prefix :flags
  ("--hidden -g !.git"))
```
You can use it like `M-x` `my-grep-project` `<RET>` or bind it to some
keys.

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wargxs · 2022-05-25 17:29

I recommend https://github.com/leoliu/ack-el or the build in vc-git-
grep which should be faster for git projects

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Foo-jin · 2022-05-25 17:32

I use the excellent `consult` package for this; have a look at
[`consult-ripgrep`](https://github.com/minad/consult#grep-and-find)

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dpassen1 · 2022-05-25 18:56

Can confirm this works. I don’t believe there’s support for `ag` but
`ripgrep` is a valid option.

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Ghosty141 · 2022-05-25 22:56

This has been the best way to do project wide grep for me. Really fast
and easily customizeable.

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LuisHGH · 2022-05-26 00:30

Ripgrep by default ignores git files, no? I remember reading something
like this

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burntsushi · 2022-05-26 00:36

It respects your gitignore, ignores hidden files and binary files by
default. Like ag. You can disable all smart filtering with -uuu.

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_viz_ · 2022-05-26 03:49

You just need to add a suitable entry in xref-search-program-alist.

EDIT: If my memory serves me right, ag support was added recently by
Manuel Uberti.