Bufisk

Download and run buf based on configuration from your environment.

Inspired by Bazelisk.

Bufisk will use (in order);

• A version specified in the environment variable ${BUF_VERSION}.
• A version specified in a file named .bufversion in your current directory, or recursively in any parent directory.

The specified version must be a valid Buf release version from github.com/bufbuild/buf/releases.

Bufisk will also download the released sha256.txt and sha256.txt.minisig, and do all verification.

All arguments passed to bufisk are transparently passed through to buf.

export BUF_VERSION=1.28.1
bufisk lint
echo 1.28.1 > .bufversion
bufisk lint

Bufisk downloads releases to a cache directory. In most Unix-like cases, this will be ~/.cache/bufisk.

The full logic:

The cache directory specified by ${BUF_CACHE_DIR}. If ${BUF_CACHE_DIR} is not set (as it usually is not), the cache directory defaults to:

• Linux, Darwin: ${XDG_CACHE_HOME}/bufisk, and if ${XDG_CACHE_HOME} is not set, ${HOME}/.cache/bufisk.
• Windows: %LocalAppData%\bufisk.

Status: Alpha

Not yet stable.

Needs some hardening, better error messages, graceful handling of common error cases, a release process, etc.

We may also want to add support for non-release tags, passing through to go install github.com/bufbuild/buf/cmd/buf@${BUF_VERSION}, and potentially having special support for a latest-type tag for releases. In the go install case, we may also want to bootstrap go itself.

This has not yet been tested on Windows.

Legal

Offered under the Apache 2 license.