rga - ripgrep, but also search in PDFs, E-Books, Office documents, zip, tar.gz, etc
rga is a line-oriented search tool that allows you to look for a regex in a multitude of file types. It is a wrapper around the awesome ripgrep that enables it to search in pdf, docx, pptx, movie subtitles (mkv, mp4), sqlite, etc.
- I wanted to add a photograph adapter (based on object classification / detection) for fun, based on something . It worked with YOLO, but something more useful and state-of-the art like this proved very hard to integrate.
- 7z adapter (couldn't find a nice to use Rust library)
- allow per-adapter configuration options (probably via env (RGA_ADAPTER_CONF=json))
Say you have a large folder of papers or lecture slides, and you can't remember which one of them mentioned
LSTMs. With rga, you can just run this:
rga "LSTM|GRU" collection/ [results]
and it will recursively find a regex in pdfs and pptx slides, including if some of them are zipped up.
You can do mostly the same thing with
pdfgrep -r, but it will be much slower and you will miss content in other file types.
title: Searching in 20 pdfs with 100 slides each subtitle: lower is better data: - pdfgrep: 123s - rga (first run): 10.3s - rga (subsequent runs): 0.1s
On the first run rga is mostly faster because of multithreading, but on subsequent runs (on the same files but with any query) rga will cache the text extraction because pdf parsing is slow.
rga should compile with stable Rust. To install it, simply run (your OSes equivalent of)
apt install build-essential pandoc poppler-utils cargo install ripgrep_all rga --help
rga simply runs ripgrep (
rg) with some options set, especially
Some rga adapters run external binaries
To enable debug logging:
export RUST_LOG=debug export RUST_BACKTRACE=1
Also rember to disable caching with
--rga-no-cache or clear the cache in
~/.cache/rga to debug the adapters.