Ruthenium is an attempt to implement the well-known Perl tool ack in Rust.

When finished, it is supposed to show the strengths of Rust, for example simple and efficient concurrency without locks, and speed comparable with C programs, in this case the implementation called ag or the_silver_searcher.

Use cargo build --release. target/release/ru is the binary.

The resulting binary is linked statically against Rust dependencies, so it can be copied into a bin directory and used.

Command-line options are designed to be mostly compatible with Ag. There are probably small differences, especially in the handling of ignore files.

Currently, the regex engine can be selected to be either Andrew Gallant's Rust implementation regex (the default) or PCRE (requires libpcre and its headers to be installed). Select the latter with the Cargo feature flag pcre.