Switch build automation to just and add GitHub Actions

.github/workflows/ci.yml

@@ -0,0 +1,54 @@
+name: CI
+
+on:
+  pull_request:
+    branches:
+      - main
+  push:
+    branches:
+      - main
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ci-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+          cache: true
+
+      - name: Set up Just
+        uses: extractions/setup-just@v3
+
+      - name: Run tests
+        run: just test
+
+  cross-build:
+    runs-on: ubuntu-latest
+    needs: test
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+          cache: true
+
+      - name: Set up Just
+        uses: extractions/setup-just@v3
+
+      - name: Validate cross-platform builds
+        run: just clean && just build-all

.github/workflows/release.yml

@@ -0,0 +1,61 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - "*"
+      - "*/*"
+
+permissions:
+  contents: write
+
+concurrency:
+  group: release-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build-and-release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+          cache: true
+
+      - name: Set up Just
+        uses: extractions/setup-just@v3
+
+      - name: Build release binaries
+        run: just clean && VERSION="${GITHUB_REF_NAME}" just build-all
+
+      - name: Package release artifacts
+        shell: bash
+        run: |
+          mkdir -p release
+          for file in dist/*; do
+            base="$(basename "$file")"
+            stem="${base%.exe}"
+            versioned="${stem}-${GITHUB_REF_NAME}"
+            if [[ "$base" == *.exe ]]; then
+              zip -j "release/${versioned}.zip" "$file"
+              continue
+            fi
+            tar -C dist -czf "release/${versioned}.tar.gz" "$base"
+          done
+          (
+            cd release
+            sha256sum * > checksums.txt
+          )
+
+      - name: Create GitHub release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: release/*
+          fail_on_unmatched_files: true
+          generate_release_notes: true

README.md

@@ -15,8 +15,8 @@ Current scope:
 ## Build
 
 ```bash
-make build
-make build-all
+just build
+just build-all
 ```
 
 Artifacts are written to `dist/`.

justfile

@@ -0,0 +1,35 @@
+set shell := ["bash", "-eu", "-o", "pipefail", "-c"]
+
+module := "github.com/formation-res/open-location-hub-cli"
+binary := env_var_or_default("BINARY", "olh")
+dist := env_var_or_default("DIST", "dist")
+version := env_var_or_default("VERSION", `git describe --tags --always --dirty 2>/dev/null || echo dev`)
+commit := env_var_or_default("COMMIT", `git rev-parse --short HEAD 2>/dev/null || echo unknown`)
+date := env_var_or_default("DATE", `date -u +"%Y-%m-%dT%H:%M:%SZ"`)
+default:
+  @just --list
+
+generate:
+  go run github.com/oapi-codegen/oapi-codegen/v2/cmd/oapi-codegen@v2.4.1 -config internal/openapi/client.cfg.yaml api/omlox-hub.v0.yaml
+
+tidy:
+  go mod tidy
+
+build: generate
+  mkdir -p {{dist}}
+  go build -ldflags "-s -w -X {{module}}/internal/build.Version={{version}} -X {{module}}/internal/build.Commit={{commit}} -X {{module}}/internal/build.Date={{date}}" -o {{dist}}/{{binary}} ./cmd/olh
+
+test: generate
+  go test ./...
+
+clean:
+  rm -rf {{dist}}
+
+build-all: generate
+  mkdir -p {{dist}}
+  GOOS=darwin GOARCH=amd64 go build -ldflags "-s -w -X {{module}}/internal/build.Version={{version}} -X {{module}}/internal/build.Commit={{commit}} -X {{module}}/internal/build.Date={{date}}" -o {{dist}}/{{binary}}-darwin-amd64 ./cmd/olh
+  GOOS=darwin GOARCH=arm64 go build -ldflags "-s -w -X {{module}}/internal/build.Version={{version}} -X {{module}}/internal/build.Commit={{commit}} -X {{module}}/internal/build.Date={{date}}" -o {{dist}}/{{binary}}-darwin-arm64 ./cmd/olh
+  GOOS=linux GOARCH=amd64 go build -ldflags "-s -w -X {{module}}/internal/build.Version={{version}} -X {{module}}/internal/build.Commit={{commit}} -X {{module}}/internal/build.Date={{date}}" -o {{dist}}/{{binary}}-linux-amd64 ./cmd/olh
+  GOOS=linux GOARCH=arm64 go build -ldflags "-s -w -X {{module}}/internal/build.Version={{version}} -X {{module}}/internal/build.Commit={{commit}} -X {{module}}/internal/build.Date={{date}}" -o {{dist}}/{{binary}}-linux-arm64 ./cmd/olh
+  GOOS=windows GOARCH=386 go build -ldflags "-s -w -X {{module}}/internal/build.Version={{version}} -X {{module}}/internal/build.Commit={{commit}} -X {{module}}/internal/build.Date={{date}}" -o {{dist}}/{{binary}}-windows-386.exe ./cmd/olh
+  GOOS=windows GOARCH=amd64 go build -ldflags "-s -w -X {{module}}/internal/build.Version={{version}} -X {{module}}/internal/build.Commit={{commit}} -X {{module}}/internal/build.Date={{date}}" -o {{dist}}/{{binary}}-windows-amd64.exe ./cmd/olh