mygolangtour

Just a playground to keep track of my GoLang learning curve

• Exercises taken from https://tour.golang.org/

Requirements

• Go 1.13

CLI Cheatsheet

Building and running

• Get it

  go get github.com/wildalmighty/mygolangtour
  

• Run it with -race flog to generate warnings for potential race conditions

  go run -race .
  

• Install it

  go install github.com/wildalmighty/mygolangtour
  

• Consume it and use it

  import "github.com/wildalmighty/mygolangtour/concurrency"
  ...
  concurrency.Crawl("http://slavi.bg", 10)
  

Testing

• Test all

  go test ./...
  

• Test Cover

  go test -covermode count -coverprofile ./testdata/cover_concurrency.out ./concurrency
  go tool cover -html=./testdata/cover_concurrency.out
  

• Test Trace profile

  go test -trace ./testdata/trace_concurrency.out ./concurrency
  go tool trace ./testdata/trace_concurrency.out
  

• Test Benchmark

  Add a benchmark in a test

  func BenchmarkCrawl(b *testing.B) {
      for i:=0; i<b.N;i++ {
          crawl("https://golang.org/", 4, fetcher)
      }
  }
  

  and then run

  go test -benchtime 2s -bench . ./concurrency
  

Others

• List all dependencies

  go list -f {{.Deps}} ./concurrency
  

• Lists the current module and all its dependencies

  go list -m all
  

• List all versions of the module

  go list -m -versions github.com/wildalmighty/mygolangtour
  

  and if you want to install an older version:

  go get github.com/wildalmighty/[email protected]
  

• Get doc for the API of a package

  go doc github.com/wildalmighty/mygolangtour/concurrency
  

  or use godoc to spin up a web server with the documentation:

  godoc -http :8000
  

  and open http://localhost:8000/pkg/github.com/wildalmighty/mygolangtour/concurrency/