ci: add GitHub Actions workflows

.github/dependabot.yml

@@ -4,4 +4,14 @@ updates:
   - package-ecosystem: gomod
     directory: .sage
     schedule:
-      interval: weekly
+      interval: monthly
+
+  - package-ecosystem: gomod
+    directory: /
+    schedule:
+      interval: monthly
+
+  - package-ecosystem: gomod
+    directory: cmd/backstage
+    schedule:
+      interval: monthly

.github/workflows/ci.yml

@@ -0,0 +1,28 @@
+name: ci
+
+on:
+  pull_request:
+    branches:
+      - "*"
+
+jobs:
+  make:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Setup Sage
+        uses: einride/sage/actions/setup@master
+        with:
+          go-version: "1.20"
+
+      - name: Make
+        run: make
+
+      - name: Dry-run semantic-release
+        run: make semantic-release repo=${{ github.repository }} dry=true
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Dry-run GoReleaser
+        run: make go-releaser snapshot=true
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/release.yml

@@ -0,0 +1,29 @@
+name: release
+
+on:
+  push:
+    branches: [master]
+
+permissions: write-all
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Setup Sage
+        uses: einride/sage/actions/setup@master
+        with:
+          go-version: "1.20"
+
+      - name: Make
+        run: make
+
+      - name: Run semantic-release
+        run: make semantic-release repo=${{ github.repository }} dry=false
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Run GoReleaser
+        run: make go-releaser snapshot=false
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.goreleaser.yml

@@ -0,0 +1,25 @@
+before:
+  hooks:
+    - go mod download
+
+builds:
+  - id: backstage
+    binary: backstage
+    dir: ./cmd/backstage
+    main: main.go
+    env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+      - windows
+      - darwin
+
+checksum:
+  name_template: "checksums.txt"
+
+snapshot:
+  name_template: "{{ .Tag }}-next"
+
+release:
+  github:
+  prerelease: auto

.sage/cmd.go

@@ -0,0 +1,21 @@
+package main
+
+import (
+	"context"
+
+	"go.einride.tech/sage/sg"
+)
+
+type CmdBackstage sg.Namespace
+
+func (CmdBackstage) Default(ctx context.Context) error {
+	sg.Deps(ctx, CmdBackstage.GoModTidy)
+	return nil
+}
+
+func (CmdBackstage) GoModTidy(ctx context.Context) error {
+	sg.Logger(ctx).Println("tidying Go module files...")
+	cmd := sg.Command(ctx, "go", "mod", "tidy", "-v")
+	cmd.Dir = sg.FromGitRoot("cmd", "backstage")
+	return cmd.Run()
+}

.sage/go.mod

@@ -2,4 +2,4 @@ module go.einride.tech/backstage/.sage
 
 go 1.20
 
-require go.einride.tech/sage v0.212.0
+require go.einride.tech/sage v0.212.1

.sage/go.sum

@@ -1,2 +1,2 @@
-go.einride.tech/sage v0.212.0 h1:0v5rBRBA/v1lX4hxf0EDSOhPDi366VXAybxh4Rhqu7w=
-go.einride.tech/sage v0.212.0/go.mod h1:EzV5uciFX7/2ho8EKB5K9JghOfXIxlzs694b+Tkl5GQ=
+go.einride.tech/sage v0.212.1 h1:RMJ61K2nQZyNjljhE5/cREpRjwuM5rLD3BbhOLheqbM=
+go.einride.tech/sage v0.212.1/go.mod h1:EzV5uciFX7/2ho8EKB5K9JghOfXIxlzs694b+Tkl5GQ=

.sage/main.go

@@ -9,7 +9,9 @@ import (
 	"go.einride.tech/sage/tools/sggo"
 	"go.einride.tech/sage/tools/sggolangcilint"
 	"go.einride.tech/sage/tools/sggolicenses"
+	"go.einride.tech/sage/tools/sggoreleaser"
 	"go.einride.tech/sage/tools/sggoreview"
+	"go.einride.tech/sage/tools/sggosemanticrelease"
 	"go.einride.tech/sage/tools/sgmarkdownfmt"
 	"go.einride.tech/sage/tools/sgyamlfmt"
 )
@@ -20,11 +22,18 @@ func main() {
 			Path:          sg.FromGitRoot("Makefile"),
 			DefaultTarget: Default,
 		},
+
+		sg.Makefile{
+			Path:          sg.FromGitRoot("cmd", "backstage", "Makefile"),
+			Namespace:     CmdBackstage{},
+			DefaultTarget: CmdBackstage.Default,
+		},
 	)
 }
 
 func Default(ctx context.Context) error {
 	sg.Deps(ctx, ConvcoCheck, FormatMarkdown, FormatYaml)
+	sg.Deps(ctx, CmdBackstage.Default)
 	sg.Deps(ctx, GoLint, GoReview)
 	sg.Deps(ctx, GoTest)
 	sg.Deps(ctx, GoModTidy)
@@ -63,7 +72,7 @@ func FormatMarkdown(ctx context.Context) error {
 }
 
 func FormatYaml(ctx context.Context) error {
-	sg.Logger(ctx).Println("formatting Yaml files...")
+	sg.Logger(ctx).Println("formatting YAML files...")
 	return sgyamlfmt.Run(ctx)
 }
 
@@ -76,3 +85,37 @@ func GitVerifyNoDiff(ctx context.Context) error {
 	sg.Logger(ctx).Println("verifying that git has no diff...")
 	return sggit.VerifyNoDiff(ctx)
 }
+
+func SemanticRelease(ctx context.Context, repo string, dry bool) error {
+	sg.Logger(ctx).Println("triggering release...")
+	args := []string{
+		"--allow-initial-development-versions",
+		"--allow-no-changes",
+		"--ci-condition=default",
+		"--provider=github",
+		"--provider-opt=slug=" + repo,
+	}
+	if dry {
+		args = append(args, "--dry")
+	}
+	return sggosemanticrelease.Command(ctx, args...).Run()
+}
+
+func GoReleaser(ctx context.Context, snapshot bool) error {
+	sg.Logger(ctx).Println("building Go binary releases...")
+	if err := sggit.Command(ctx, "fetch", "--force", "--tags").Run(); err != nil {
+		return err
+	}
+	args := []string{
+		"release",
+		"--rm-dist",
+	}
+	if len(sggit.Tags(ctx)) == 0 && !snapshot {
+		sg.Logger(ctx).Printf("no git tag found for %s, forcing snapshot mode", sggit.ShortSHA(ctx))
+		snapshot = true
+	}
+	if snapshot {
+		args = append(args, "--snapshot")
+	}
+	return sggoreleaser.Command(ctx, args...).Run()
+}

Makefile

@@ -75,10 +75,31 @@ go-lint: $(sagefile)
 go-mod-tidy: $(sagefile)
 	@$(sagefile) GoModTidy
 
+.PHONY: go-releaser
+go-releaser: $(sagefile)
+ifndef snapshot
+	 $(error missing argument snapshot="...")
+endif
+	@$(sagefile) GoReleaser "$(snapshot)"
+
 .PHONY: go-review
 go-review: $(sagefile)
 	@$(sagefile) GoReview
 
 .PHONY: go-test
 go-test: $(sagefile)
 	@$(sagefile) GoTest
+
+.PHONY: semantic-release
+semantic-release: $(sagefile)
+ifndef repo
+	 $(error missing argument repo="...")
+endif
+ifndef dry
+	 $(error missing argument dry="...")
+endif
+	@$(sagefile) SemanticRelease "$(repo)" "$(dry)"
+
+.PHONY: cmd-backstage
+cmd-backstage:
+	$(MAKE) -C cmd/backstage -f Makefile

cmd/backstage/Makefile

@@ -0,0 +1,52 @@
+# Code generated by go.einride.tech/sage. DO NOT EDIT.
+# To learn more, see ../../.sage/main.go and https://github.com/einride/sage.
+
+.DEFAULT_GOAL := default
+
+cwd := $(dir $(realpath $(firstword $(MAKEFILE_LIST))))
+sagefile := $(abspath $(cwd)/../../.sage/bin/sagefile)
+
+# Setup Go.
+go := $(shell command -v go 2>/dev/null)
+export GOWORK ?= off
+ifndef go
+SAGE_GO_VERSION ?= 1.18.4
+export GOROOT := $(abspath $(cwd)/../../.sage/tools/go/$(SAGE_GO_VERSION)/go)
+export PATH := $(PATH):$(GOROOT)/bin
+go := $(GOROOT)/bin/go
+os := $(shell uname | tr '[:upper:]' '[:lower:]')
+arch := $(shell uname -m)
+ifeq ($(arch),x86_64)
+arch := amd64
+endif
+$(go):
+	$(info installing Go $(SAGE_GO_VERSION)...)
+	@mkdir -p $(dir $(GOROOT))
+	@curl -sSL https://go.dev/dl/go$(SAGE_GO_VERSION).$(os)-$(arch).tar.gz | tar xz -C $(dir $(GOROOT))
+	@touch $(GOROOT)/go.mod
+	@chmod +x $(go)
+endif
+
+.PHONY: $(sagefile)
+$(sagefile): $(go)
+	@cd ../../.sage && $(go) mod tidy && $(go) run .
+
+.PHONY: sage
+sage:
+	@$(MAKE) $(sagefile)
+
+.PHONY: update-sage
+update-sage: $(go)
+	@cd ../../.sage && $(go) get -d go.einride.tech/sage@latest && $(go) mod tidy && $(go) run .
+
+.PHONY: clean-sage
+clean-sage:
+	@git clean -fdx ../../.sage/tools ../../.sage/bin ../../.sage/build
+
+.PHONY: default
+default: $(sagefile)
+	@$(sagefile) CmdBackstage:Default
+
+.PHONY: go-mod-tidy
+go-mod-tidy: $(sagefile)
+	@$(sagefile) CmdBackstage:GoModTidy