Add goreleaser config and bump version support

Releases are cut manually by calling bump-version.sh

Signed-off-by: Jose Luis Vazquez Gonzalez <[email protected]>

.github/workflows/release.yml

@@ -0,0 +1,27 @@
+name: release
+
+on:
+  push:
+    tags:
+      - "v*.*.*"
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Unshallow
+        run: git fetch --prune --unshallow
+      - name: Set up Go
+        uses: actions/setup-go@v1
+        with:
+          go-version: 1.17.x
+      - name: Release
+        uses: goreleaser/goreleaser-action@v2
+        with:
+          version: latest
+          args: release --rm-dist
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.gitignore

@@ -8,3 +8,7 @@ build/*
 .idea
 *.iml
 
+
+dist/
+
+next-semver/next-semver

.goreleaser.yml

@@ -0,0 +1,35 @@
+# This is an example .goreleaser.yml file with some sensible defaults.
+# Make sure to check the documentation at https://goreleaser.com
+env:
+  - VERSION="{{ .Version }}"
+before:
+  hooks:
+    - make build
+builds:
+  - env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+      - windows
+      - darwin
+    binary: relok8s
+archives:
+  - replacements:
+      darwin: Darwin
+      linux: Linux
+      windows: Windows
+      386: i386
+      amd64: x86_64
+    name_template: "{{ .Binary }}_{{ .Version }}_{{ .Os }}_{{ .Arch }}{{ if .Arm }}v{{ .Arm }}{{ end }}{{ if .Mips }}_{{ .Mips }}{{ end }}"
+    files:
+      - README.md
+checksum:
+  name_template: 'checksums.txt'
+snapshot:
+  name_template: "{{ incpatch .Version }}-next"
+changelog:
+  sort: asc
+  filters:
+    exclude:
+      - '^docs:'
+      - '^test:'

bump-version.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+set -euo pipefail
+
+old_version=$(cat version)
+(cd next-semver && go build .)
+version=$(./next-semver/next-semver "${old_version}")
+echo "${version}" > version
+git add version
+git commit -s -m "Bump version to ${version}"
+git push
+git tag "v${version}" && git push origin "v${version}"
+

next-semver/go.mod

@@ -0,0 +1,5 @@
+module example.com/versions/next-semver
+
+go 1.17
+
+require github.com/Masterminds/semver/v3 v3.1.1 // indirect

next-semver/go.sum

@@ -0,0 +1,2 @@
+github.com/Masterminds/semver/v3 v3.1.1 h1:hLg3sBzpNErnxhQtUy/mmLR2I9foDujNK030IGemrRc=
+github.com/Masterminds/semver/v3 v3.1.1/go.mod h1:VPu/7SZ7ePZ3QOrcuXROw5FAcLl4a0cBrbBpGY/8hQs=

next-semver/main.go

@@ -0,0 +1,19 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	semverv3 "github.com/Masterminds/semver/v3"
+)
+
+func main() {
+	if len(os.Args) != 2 {
+		fmt.Printf("Usage: %s {semver-version}\n$ %s 1.2.3\n", os.Args[0], os.Args[0])
+		os.Exit(-1)
+	}
+	v := os.Args[1]
+	version := semverv3.MustParse(v)
+	next := version.IncPatch()
+	fmt.Println(next)
+}