Common Go Tools

Shared components we found ourselves building time and time again, so we collected them in one place!

This library consists of:

• config

  Enables strongly typed config throughout your application. Offers a way to represent config in go structs. takes care of parsing, validating and watching for changes on config.

• cli/pflags

  Tool to generate a pflags for all fields in a given struct.

  Install

  On POSIX systems, run: curl -sfL https://raw.githubusercontent.com/lyft/flytestdlib/godownloader/godownloader.sh | sh

  On Windows:

  Install scoop: iex (new-object net.webclient).downloadstring('https://get.scoop.sh')

  Run: scoop bucket add flytestdlib https://github.com/lyft/flytestdlib.git

  Run: scoop install pflags

• storage

  Abstract storage library that uses stow behind the scenes to connect to s3/azure/gcs but also offers configurable factory, in-memory storage (for testing) as well as native protobuf support.

• contextutils

  Wrapper around golang's context to set/get known keys.

• logger

  Wrapper around logrus that's configurable, taggable and context-aware.

• profutils

  Starts an http server that serves /metrics (exposes prometheus metrics), /healthcheck and /version endpoints.

• promutils

  Exposes a Scope instance that's a more convenient way to construct prometheus metrics and scope them per component.

• atomic

  Wrapper around sync.atomic library to offer AtomicInt32 and other convenient types.

• sets

  Offers strongly types and convenient interface sets.

• utils

• version

Contributing

Versioning

This repo follows semantic versioning.

Releases

This repository is hooked up with goreleaser. Maintainers are expected to create tags and let goreleaser compose the release message and create a release.

To create a new release, follow these steps:

• Create a PR with your changes.

• [Optional] Create an alpha tag on your branch and push that.

  • First get existing tags git describe --abbrev=0 --tags

  • Figure out the next alpha version (e.g. if tag is v1.2.3 then you should create a v1.2.4-alpha.0 tag)

  • Create a tag git tag v1.2.4-alpha.0

  • Push tag git push --tags

• Merge your changes and checkout master branch git checkout master && git pull

• Bump version tag and push to branch.

  • First get existing tags git describe --abbrev=0 --tags

  • Figure out the next release version (e.g. if tag is v1.2.3 then you should create a v1.2.4 tag or v1.3.0 or a v2.0.0 depending on what has changed. Refer to Semantic Versioning for information about when to bump each)

  • Create a tag git tag v1.2.4

  • Push tag git push --tags