Install

From a release

Each release ships a binary for every supported target, with a checksum beside it. Download the pair from the releases page, check it, and put hql somewhere on your PATH:

shasum -a 256 -c hql-<version>-<target>.tar.gz.sha256   # sha256sum -c on Linux
tar -xzf hql-<version>-<target>.tar.gz

The targets are x86_64-unknown-linux-gnu, aarch64-apple-darwin and x86_64-apple-darwin. An archive that does not match its checksum is not the one that was built.

With Cargo

With Rust 1.88 or newer from rustup:

cargo install hql --locked                                   # the last release
cargo install --git https://github.com/ewiger/hql --locked   # the latest commit
cargo install --path . --locked                              # from a clone

Check it works

hql eval '40 + 2'

42

hql builtins lists every step a pipeline may use, grouped by the extension that provides it.

Versions

While the major version is 0, a minor release may break a program that ran before. The changelog says so release by release.