12/30/2023 0 Comments Ripgrep command not foundHowever, there is also a highly efficient implementation available for older Intel SkylakeX (or compatible AMD) hardware, which is only around 20% slower than the Icelake implementation. Lastly, Sneller’s regex engine is optimized for the Intel Icelake/Zen4 processor and is implemented entirely in AVX-512 assembly language. This is achieved by transforming the underlying Deterministic Finite Automaton (DFA) such that backtracking is not necessary. In addition, we eliminated the need for backtracking during acceptance checks, resulting in data only needing to be traversed once. This enables 16 separate match processes to be executed concurrently on a single core. The Sneller regular expression engine leverages the parallel processing capabilities of AVX-512 by utilizing 16 parallel lanes to perform acceptance checks without the need for branching. What is Sneller’s regex engine and why is it fast? However, for the sake of convenience and reproducibility on a laptop, we will be performing our testing on a single 12GB text file. This is not different for Sneller: you would organize a petabyte of storage with, for example, millions of 1GB S3 objects it will be treated as single storage unit. With ripgrep you would organize your files in a directory tree that you can query easily. When dealing with large amounts of data, having a single file of over 100GB can be inconvenient. The query engine has a command-line SQL query tool designed to processing very large compressed JSON files, and in this comparison, we will be using the ~ POSIX SQL regex operator. On the other hand, the Sneller query engine is different, although it can be used for comparable tasks. It is designed to be fast and efficient, even when searching through large files or directories with many files. Ripgrep is a popular and powerful command-line search tool that recursively searches directories for lines of text that match a given regular expression pattern. As I say, nobody is individually doing anything wrong here, but the combined effect of all this is confusing and will likely make people less confident in snaps overall.In this post we will briefly compare the raw speed of ripgrep with Sneller’s SQL regular expression engine. I don’t know whether this is a bug in command-not-found (don’t recommend things that don’t actually provide the command I typed), the snap ecosystem overall (there are multiple things which all provide the same command), or what. So the experience here is: I try to run a command, command-not-found tells me to install something to get it, I install that thing, and I still don’t have that command. I was pretty baffled by all this, and I’m more knowledgeable than most users about snaps I don’t think most people would have known to run it as ripgrep.rg, for example. (This seems to have been asked about already and then decided not to.) And there are multiple versions of ripgrep in the store, at different versions, and the one with the “canonical” binary name isn’t the most recent version. None of the individual parts here are wrong, but they’re all fitting together in a way that makes the whole experience confusing and unpleasant and less credible, which is a problem.Ĭommand-not-found recommends installing the ripgrep snap to get the rg command, but then doesn’t give me the rg command. So, this is, in my opinion, a fairly terrible experience, so I thought I’d give some feedback about that in the hope that someone can think about it. The following required arguments were not provided: Ripgrep 0.10.0 from Chris MacNaughton (icey) installedĬommand 'ripgrep' not found, did you mean:Įrror: cannot find app "ripgrep" in "ripgrep"Įrror: cannot find current revision for snap rg: readlink /snap/rg/current: no such file or directory Obviously I would want the newest version, so: $ snap install ripgrep -classic # we need -classic, apparently, don't know why See 'snap info ' for additional versions. Sudo snap install ripgrep # version 0.10.0 $ rgĬommand 'rg' not found, but can be installed with: There is a tool, ripgrep, with binary name rg.
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