Add goreleaser to make packages on github

Author: ncw

.goreleaser.yml

@@ -0,0 +1,33 @@
+# .goreleaser.yml
+# Build customization
+builds:
+  - binary: gpython
+    goos:
+      - windows
+      - darwin
+      - linux
+      - freebsd
+      - netbsd
+    goarch:
+      - amd64
+      - 386
+      - arm
+      - arm64
+
+snapshot:
+  # Allows you to change the name of the generated snapshot
+  # releases. The following variables are available:
+  # - Commit
+  # - Tag
+  # - Timestamp
+  # Default is `SNAPSHOT-{{.Commit}}`.
+  name_template: "{{.Tag}}-DEV"
+
+# Archive customization
+archive:
+  format: zip
+  replacements:
+    darwin: macOS
+  files:
+    - README.md
+    - LICENSE

README.md

@@ -23,6 +23,19 @@ modules are written in C not python.  The converted modules are:
   * time
   * sys
 
+## Install
+
+Gpython is a Go program and comes as a single binary file.
+
+Download the relevant binary from here: https://github.com/ncw/gpython/releases
+
+Or alternatively if you have Go installed use
+
+    go get github.com/ncw/gpython
+
+and this will build the binary in `$GOPATH/bin`.  You can then modify
+the source and submit patches.
+
 ## Objectives
 
 Gpython was written as a learning experiment to investigate how hard

RELEASE.md

@@ -0,0 +1,17 @@
+# Making a release #
+
+Compile and test
+
+Then run
+
+  goreleaser --rm-dist --snapshot
+
+To test the build
+
+When happy, tag the release
+
+  git tag -a v1.0.XX -m "Release v1.0.XX"
+
+Then do a release build (set GITHUB token first)
+
+  goreleaser --rm-dist