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Latest commit 12e9932 Mar 24, 2015

README.md

Intro

A locally-run HTML5 web interface for experimenting with Go code.

This started out as a merge between http://play.golang.org, Go's present package and $GOROOT/misc/play

Features

Basically since this runs on your computer you control any restrictions on what can be done. Specifically:

  • You can use with locally-installed go packages.
  • You can set build, test, and run options; set runtime-environment variables
  • No Internet access is needed
  • Data can be totally private
  • You can run long computations
  • The date and time are those set on the server

Installing and Running

To run download from git:

    git clone http://code.google.com/p/go-play

Running is pretty easy:

  $ cd go-play/goplay
  $ go run goplay.go

or if you want to build the binary first:

  $ cd go-play/goplay
  $ go build goplay.go
  $ ./goplay

Now in an HTML5-compliant web browser, load http://localhost:3998/

You should see the standard "Hello World" program, which you can compile and run by pressing shift-enter.

Options

There are some rudimentary command options:

  • --help gives a list of all options
  • --http host:port gives host and port to listen on.

The default HTTP host and port is is 127.0.0.1:3998

Security

Anyone with access to the goplay web interface can run arbitrary code on your computer. Goplay is not a sandbox, and has no other security mechanisms. Do not deploy it in untrusted environments. By default, goplay listens only on localhost. This can be overridden with the -http parameter.