Makefile,release,.gitignore: release in Docker

This allows us to standardize release instructions and should make it
easier for end users to release in a standard way, regardless of the
Go version or dependency versions running on their machine.

Remove "download dependencies" step since we should be using the
vendor directory for changes.

.github/workflows/ci.yml

@@ -18,9 +18,6 @@ jobs:
     # staticcheck needs this for GOPATH
     - run: echo "::set-env name=GOPATH::$GITHUB_WORKSPACE"
     - run: echo "::set-env name=PATH::$GITHUB_WORKSPACE/bin:$PATH"
-    - name: Download dependencies
-      run: go get -t -v ./...
-      working-directory: './src/github.com/github-release/github-release'
     - name: Run tests
       run: make test
       working-directory: './src/github.com/github-release/github-release'

.gitignore

@@ -1,26 +1,7 @@
-github-release
-go-app
-bin/
-
-# Compiled Object files, Static and Dynamic libs (Shared Objects)
-*.o
-*.a
-*.so
-
-# Folders
-_obj
-_test
-
-# Architecture specific extensions/prefixes
-*.[568vq]
-[568vq].out
-
-*.cgo1.go
-*.cgo2.c
-_cgo_defun.c
-_cgo_gotypes.go
-_cgo_export.*
-
-_testmain.go
+/github-release
+/go-app
 
 *.exe
+
+/bin
+/var/cache

Makefile

@@ -1,3 +1,5 @@
+SHELL=/bin/bash -o pipefail
+
 LAST_TAG := $(shell git describe --abbrev=0 --tags)
 
 USER := github-release
@@ -21,7 +23,7 @@ all: $(EXECUTABLE)
 
 # the executable used to perform the upload, dogfooding and all...
 bin/tmp/$(EXECUTABLE):
-	go build -o "$@"
+	go build -v -o "$@"
 
 # arm
 bin/linux/arm/5/$(EXECUTABLE):
@@ -60,12 +62,17 @@ ifndef GITHUB_TOKEN
 	@echo "Please set GITHUB_TOKEN in the environment to perform a release"
 	exit 1
 endif
-	$(MAKE) bin/tmp/$(EXECUTABLE) $(COMPRESSED_EXECUTABLE_TARGETS)
-	git push && git push --tags
-	git log --format=%B $(LAST_TAG) -1 | \
-		bin/tmp/$(EXECUTABLE) release -u $(USER) -r $(EXECUTABLE) \
-		-t $(LAST_TAG) -n $(LAST_TAG) -d - || true
-	$(foreach FILE,$(COMPRESSED_EXECUTABLES),$(UPLOAD_CMD);)
+	docker run --rm --volume $(PWD)/var/cache:/root/.cache/go-build \
+		--env GITHUB_TOKEN=$(GITHUB_TOKEN) \
+		--volume "$(PWD)":/go/src/github.com/github-release/github-release \
+		--workdir /go/src/github.com/github-release/github-release \
+		meterup/ubuntu-golang:latest \
+		./release \
+		"$(MAKE) bin/tmp/$(EXECUTABLE) $(COMPRESSED_EXECUTABLE_TARGETS) && \
+		git log --format=%B $(LAST_TAG) -1 | \
+			bin/tmp/$(EXECUTABLE) release -u $(USER) -r $(EXECUTABLE) \
+			-t $(LAST_TAG) -n $(LAST_TAG) -d - || true && \
+		$(foreach FILE,$(COMPRESSED_EXECUTABLES),$(UPLOAD_CMD);)"
 
 # install and/or update all dependencies, run this from the project directory
 # go get -u ./...

release

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+main() {
+    apt-get update && apt-get install zip
+    git branch --set-upstream-to=origin/master release
+    set -x
+    exec /bin/bash -c "$@"
+}
+
+main "$@"