"Hello, world!" example of Cobra with 100% code coverage

Note : "Cobra" is an awesome framework of Go to help create CLI apps.

This repo is an example of Cobra's "Hello, world!" with 100% code coverage.

Including the below to just say "Hello" to the world!

• CI
  • Unit tests on Go v1.15 to the latest.
  • Static analysis, security scan, lint and format check.
  • Monthly vulnerability scan via CodeQL.
  • Automated monthly update of go.mod and go.sum on test-pass.
• Automated Homebrew release on release push.

Searching for the best practices of Cobra

We all know keeping 100% of code coverage is a myth. But as a Golang and Cobra beginner, we wanted a "Hello-world" example with 100% of coverage, which couldn't be found by googling for "golang cobra sample example hello world coverage 100%".

This repo aims to find the best-practices of Cobra by refactoring it on a moment-to-moment basis. But keeping the code coverage as high as possible and less complexity as possible.

• Therefore, this is a forever-WIP-repo. So any PR for the better is welcome!! We will merge it as long as it passess the tests with 100% coverage and not a prank-kind PR.
  • Branch to PR: main

Statuses

Note

• This example app supports Homebrew installation. To know how it works see: .goreleaser.yml

  brew install KEINOS/Hello-Cobra/hello-cobra

  $ brew install KEINOS/Hello-Cobra/hello-cobra
  ==> Tapping keinos/hello-cobra
  ... **snip** ...
  ==> Installing hello-cobra from keinos/hello-cobra
  ... **snip** ...
  
  $ hello-cobra --version
  hello-cobra version 1.3.2-alpha (c3c9eab)
  
  $ hello-cobra hello foo bar
  Hello, foo and bar!
  
  $ hello-cobra hello foo bar --reverse
  !rab dna oof ,olleH

• This package auto-detects the app version from the git tag if the app was installed via go install (on Go v1.16+) or go get -u (on Go 1.15). Try:

  # For Go 1.16 or above
  cd /tmp
  go install "github.com/KEINOS/Hello-Cobra/hello-cobra@latest"
  hello-cobra --version
  # Output: hello-cobra version v1.3.0

  # For Go 1.15
  cd /tmp
  GO111MODULE="on" go get -u "github.com/KEINOS/Hello-Cobra/hello-cobra@latest"
  hello-cobra --version
  # Output: hello-cobra version v1.3.0

• This repo updates monthly the go.mod and go.sum files if all the tests succeeds to run in all Go versions (Go v1.15~latest).

License

The repo itself is MIT License. (c) Copyright, Hello-Cobra Contributors.

BUT any app created from this repo as a template/boilerplate may have its willing license.