goplayutils

Goplayutils

goplayutils is a command line tool that allows you to turn gists and other go code into a go playground sandboxed code snippet.

Getting it

Set up your $GOPATH and install the latest version of go, then run the following:

go get github.com/ecnahc515/goplayutils/cmd/goplay

You should now have the goplay binary in your $GOPATH.

Usage

goplay can take input in a few ways. You can provide it a gist-id which is the last segment after your username in a github gist. If your providing a specific revision, everything after your username should be used.

Examples:

The gist: https://gist.github.com/ecnahc515/952190cba18de244b472

A specific revision of that gist: https://gist.github.com/ecnahc515/952190cba18de244b472/865f92da4ab99d404d10dc5b705461332b7687a1

# no revision
goplay 952190cba18de244b472
# with the revision:
goplay 952190cba18de244b472/865f92da4ab99d404d10dc5b705461332b7687a1

You can also use goplay on non-gists by passing in the file contents via stdin:

cat somefile.go | goplay

As a Web Service:

The other option is to run it as a web service which accepts http requests and returns a playground url. To this you can run a command such as:

goplay -d --addr "0.0.0.0:8080"

The -d flag means to run as a web service, and the --addr flag is optional and lets you specify a non default host/port.

Once it's running you can access the webpage at the root of localhost or the fqdn of the host its running on. It also accepts requests with a content type of application/json and a gistid query parameter at the /gist endpoint. It will then return the url in the JSON form {"url": "play.golang.org/p/####"}.

If you have goplay running on localhost:8080 (the default) you could run the following:

curl -H "Content-Type: application/json" "http://localhost:8080/gist?gistid=952190cba18de244b472"
{"url":"http://play.golang.org/p/bvnGZ_Uf7g"}

Caveats

goplayutils currently only supports retrieving a single file/package from a gist. It currently looks for the first file in a gist with the contents package main in it and uses that for creating a playground link. This is a restriction of the go playground more than goplayutils itself.