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Ripgrep 14 Released

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297 points by timf 2 years ago · 72 comments

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akprasad 2 years ago

Andrew sets an extremely high bar for open-source engineering. As a loose member of the broader Rust community, I've benefited enormously not only from his code but also from his discussion comments and his blog posts (especially [1] and [2]).

Congratulations on the release, Andrew! I also notice that you've joined Astral [3], which as a fan of Rust/Ruff/rg I'm thrilled about.

[1]: https://blog.burntsushi.net/transducers/

[2]: https://blog.burntsushi.net/foss/

[3]: https://github.com/astral-sh

insanitybit 2 years ago

There is a distinct joy in showing someone rg who has never seen it before and then seeing them immediately adopt it as a daily tool.

Recently a colleague had a bug. He told me it was related to the "X" that was weirdly behaving like a "Y".

I fd'd "X" and then rg'd the resulting files for "Y" and found a place where some copy/pasted code was treating "X" as a "Y". Big monorepo codebase, absolutely just tore through it and solved the entire bug.

  • blindriver 2 years ago

    This happened to me. The codebase I work with is hundreds of gigabytes and I was using find --exec grep, and my coworker showed me rg and I couldn't believe what I was seeing. It's a beautiful and amazing tool.

  • Matthias247 2 years ago

    Since Visual Studio Code is using ripgrep for search one can also open the repo in the editor and use find in files to search for such things similar performance. It’s one of my favorite tools for searching specific expressions in codebases.

    • carlmr 2 years ago

      That's why I initially jumped on the VSCode bandwagon. I'm slightly miffed that nowadays the search is much slower than ripgrep. I see myself using ripgrep from the VSCode console.

      I don't think it's ripgrep itself, it's something with the way VSCode manages extensions, and doesn't give you enough information to debug which extension is blocking it.

    • insanitybit 2 years ago

      I always just find it faster to put a command argument together tbh

ashton314 2 years ago

If you are an Emacs user like me, you must try out the consult-ripgrep command from the peerless Consult [1] package by Daniel Mendler: search your whole project with ripgrep and get a live preview of every matching candidate all inside of Emacs!

[1]: https://github.com/minad/consult

  • TacticalCoder 2 years ago

    And for those who are also on Emacs but on the Swiper/avy/ivy/counsel side of the fence, there's counsel-rg.

    I use it since before burntsushi (who's here on HN btw)'s ripgrep was shipped with Debian stable!

    > search your whole project with ripgrep and get a live preview of every matching candidate all inside of Emacs

    I'm sometimes searching not just my project but my entire user dir or my entire shared drive, from Emacs. A NVMe PCIe 4.0 SSD (I'm using a WD SN850X which someone here recommended to me when I assembled my PC) is that fast and ripgrep too.

    • e12e 2 years ago

      > Swiper/avy/ivy/counsel

      What are these? They're not editors/IDEs.. or?

      • indymike 2 years ago

        Oh, they are Emacs extensions.

        • e12e 2 years ago

          Ah, thank you. My brain inserted a "not" in place of "also", so I read:

          > And for those who are also on Emacs but on the Swiper/avy/ivy/counsel side of the fence

          As "And for those who are not on Emacs but..."

  • oakpond 2 years ago

    En garde! If you're a Vim user, fzf.vim [1] can do this. :)

    [1]: https://github.com/junegunn/fzf.vim

  • clircle 2 years ago

    Yep, the consult suite and rg are two of my favorite things. And I'm not even a SWE.

  • Barrin92 2 years ago

    am a big fan of the whole consult/vertico/embark stack of emacs plugins. They're fantastic.

  • brunoqc 2 years ago

    deadgrep is nice too

skunkworker 2 years ago

Ripgrep is probably my favorite command line tool (which replaces older solutions). It’s just so quick to search a folder for a specific line of text in a file.

  • coldtea 2 years ago

    Same here... the program I use most aside from my editor.

    In fact my current editor, VS Code, also does searching powered by rg behind the scenes:

      /Applications/Visual\ Studio\ Code.app/Contents/Resources/app/node_modules.asar.unpacked/vscode-ripgrep/bin/rg
anotherpaulg 2 years ago

My muscle memory is still dialed in to `ack`, but I recently built an open source tool called `grep-ast` [0] that serves a similar function to ripgrep, ack, etc. The difference is that it shows matching lines in the context of the functions/methods/classes/etc that contain them.

It uses the abstract syntax tree (AST) of the source code to show how the matching lines fit into the code structure. It shows relevant code from every layer of the AST, above and below the matches.

It feels quite useful when you're grepping to understand how functions, classes, variables etc are used within a non-trivial codebase.

Here's a snippet that shows grep-ast searching the django repo. Notice that it finds `ROOT_URLCONF` and then shows you the method and class that contain the matching line, including a helpful part of the docstring. If you ran this in the terminal, it would also colorize the matches.

  django$ gast ROOT_URLCONF

  middleware/locale.py:

  │from django.conf import settings
  │from django.conf.urls.i18n import is_language_prefix_patterns_used
  │from django.http import HttpResponseRedirect
  ⋮...
  │class LocaleMiddleware(MiddlewareMixin):
  │    """
  │    Parse a request and decide what translation object to install in the
  │    current thread context. This allows pages to be dynamically translated to
  │    the language the user desires (if the language is available).
  ⋮...
  │    def process_request(self, request):
  ▶        urlconf = getattr(request, "urlconf", settings.ROOT_URLCONF)
[0] https://github.com/paul-gauthier/grep-ast
  • rtpg 2 years ago

    have you looked at semgrep? This isn't the same thing but is similarly poking at the whole "ASTs are a thing we want to grep at" problem

    • anotherpaulg 2 years ago

      Thanks for the pointer. There are definitely a few tools that have explored the idea of searching the AST of code. Semgrep seems to do that, as does a tool called ast-grep [0].

      Both of them are sort of doing the opposite of my tool. They are letting you specify your search as a chunk of code/AST.

      My tool let's you grep a regex as usual, but shows you the matches in a helpful AST aware way.

      [0] https://ast-grep.github.io/

  • indymike 2 years ago

    Thanks for making this. Immediately useful.

grudg3 2 years ago

rg is great, I use it a lot. Recently I have also used [ambr](https://github.com/dalance/amber) which can do both search (ambs) and replace (ambr) recursively in your codebase. The only problem as of yet is that it does not support globbing so I cannot filter on certain filetypes only.

  • nextaccountic 2 years ago

    See also ast-grep

    https://github.com/ast-grep/ast-grep/

    > ast-grep is a AST-based tool to search code by pattern code. Think it as your old-friend grep but it matches AST nodes instead of text. You can write patterns as if you are writing ordinary code. It will match all code that has the same syntactical structure. You can use $ sign + upper case letters as wildcard, e.g. $MATCH, to match any single AST node. Think it as REGEX dot ., except it is not textual.

  • coldtea 2 years ago

    You could use "find" (or even better, "fd") to find specific filetypes, then pass it to amber via xargs or some similar way.

  • wwarner 2 years ago

    This use case is a killer feature of emacs. Rg supports wgrep (writable grep). `rg` to match lines, and then in the resulting buffer, `e` to edit the results and save the changes back to the matched files.

  • nicoburns 2 years ago

    https://github.com/facebookincubator/fastmod is also great for the replace usecase.

  • mirashii 2 years ago

    I'll throw in sd as a nice sed/find-and-replace tool. Using fd + xargs + sd is a pretty good workflow if a shell glob isn't good enough to target the files you want. https://github.com/chmln/sd

    • cstrahan 2 years ago

      I’ll also throw in Leah Neukirche ‘s xe as a better alternative to xargs: https://github.com/leahneukirchen/xe

    • ForkMeOnTinder 2 years ago

      I wanted to like sd but it doesn't support my main use case of recursive search/replace. Imagine if every time you wanted to grep some files you had to build a find -print0 | xargs | rg pipeline... it just takes me out of the flow too much. I'm glad people are posting other options here, I'm looking forward to trying them.

      https://github.com/chmln/sd/issues/62

      • oftenwrong 2 years ago

        If you haven't discovered recursive path expansion with `**` yet, which is supported by a number of popular shells, including bash, it is about to improve your shell life.

        • mirashii 2 years ago

          Agreed, doing sd 'search' 'replace' **.py is common in my history. I only mention fd + xargs as a backup for when you need to do something that a simple shell expansion won't cover.

          Also, for a "confirm your changes" type workflow, I like git add -p after running the sd command just to review all of the changes.

        • gitaarik 2 years ago

          How does that work?

          • tyingq 2 years ago

            It's glob and/or bsd_glob from the underlying C stdlib. Another interesting example of things the stdlib glob can do:

              #!/usr/bin/perl
              # perl since it's an easy way to use an arbitrary function from stdlib
              use File::Glob "bsd_glob";
              for (bsd_glob("{Hello,Hi} {world,everyone}...a {demo,example}")) {
                print($_."\n");
              }
markussss 2 years ago

I use Ripgrep daily, and it helps me a lot when navigating codebases, and I even use it to search through my notes. A while ago, I made a script that looks for file paths in the output from Ripgrep in order to turn the paths into clickable links, as I couldn't get it to work properly back then. I'm so happy to hear that «the headlining feature in this release is hyperlink support»! I'm really looking forward to using the new update.

goalieca 2 years ago

I’m not an rg wizard by any means, but it is one of the few utilities that I end up using daily for one reason or another.

lelandbatey 2 years ago

The notes state that the headline feature is "hyperlink support". However, the notes don't seem to really explain what that means. Can someone explain a bit more about what that feature does/is? What's a use case?

  • coldtea 2 years ago

    So, when you search for "foo" in mydir/, rg can find the term foo inside different places in a number of files, and then print the results like:

      mydir/myfile.java
      15: return foo;
      78: System.out.println(foo);
      123: // TODO: change foo to bar
    
    Hyperlink support means that the line numbers (15, 78, 123) are clickable, and will open your favorite editor to that file and that line number.

    That's if your terminal supports hyperlinks, or has hyperlink support enabled - most do. Depending on the terminal app it might be control/cmd click, or option-click to open the hyperlink.

    Note (this got me while trying): hyperlinks are not emitted when you search inside a specific file directly, e.g. "rg foo myfile.py".

    • lelandbatey 2 years ago

      I'm fascinated! I've been living with and authoring CLI tools for about a decade now and I didn't know that there's widespread support for additional attributes on text besides styling (color, italics, underline, etc) in common terminal emulators. What a cool thing!

    • burntsushi 2 years ago

      For the single file case, if you pass --with-filename then it should work.

  • citruscomputing 2 years ago

    Sibling comments have explained, but the keyword to search to learn more is "OSC-8 hyperlinks"

  • kzrdude 2 years ago

    Terminals (some terminals) support hyperlinks and it creates clickable links. For example ls -l --hyperlink=auto If you terminal supports it, you can click the names.

    See here for more info: https://github.com/Alhadis/OSC8-Adoption/

  • burntsushi 2 years ago

    It creates links in the output. You click them. It opens the file. That's pretty much it.

bomewish 2 years ago

Extra life hack for Mac users — you can use mdfind first and then pipe those results into rg with xargs. Even faster. Mdfind has an index already so the results are almost instant even across huge numbers of files. Major qol improvement.

piinbinary 2 years ago

I'm still sad that --sort-files makes ripgrep run in single-core mode. (I know you can't make --sort-files _free_ in multi-core mode, but it would still be faster than single-core)

https://github.com/BurntSushi/ripgrep/issues/152

leonheld 2 years ago

I'm very thankful for ripgrep, ag and fzf.

coldtea 2 years ago

I don't seem to get the hyperlinks with either Terminal or iTerm.

P.S. OK found it: it can't show hyperlinks when you explicitly pass a file name to search (for internal implementation reasons, might be fixed later). It works when you search in directories etc.

ziml77 2 years ago

Hyperlink support? Hell yes! This has been such a frustration of using terminal tools to search in files. I love that the vscode format even linkifies by matched line. Thanks for this update burntsushi!

dharmab 2 years ago

Ripgrep is an essential tool for navigating unfamiliar codebases. I also use it to quickly search many repositories for specific symbols when I research the consumers of libraries and APIs.

tgv 2 years ago

What's the improvement this time? Translate DFAs to microcode?

scrame 2 years ago

so... its grep to ack to ag to rg, is there something next?

forgotusername6 2 years ago

The release notes use the word "headling" twice instead of presumably "headline". I had to look it up in case this was a new usage of this archaic word.

vram22 2 years ago

There was also ack (IIRC) written in Perl, earlier.

andrewstuart 2 years ago

I wish Jetbrains would integrate ripgrep into Pycharm as a native feature.

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