refactor makefile and add CI (#18)

.eslintrc.js

@@ -1,4 +1,4 @@
-// Copyright 2020-2021 Buf Technologies, Inc.
+// Copyright 2020-2022 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -12,39 +12,24 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+const ignoreFiles = [".eslintrc.js", "dist/**/*"];
+
 module.exports = {
   env: {
-    es2021: true
+    es2022: true,
   },
-  extends: [
-    "eslint:recommended",
-    "plugin:@typescript-eslint/recommended",
-    "plugin:@typescript-eslint/recommended-requiring-type-checking",
-  ],
+  ignorePatterns: ignoreFiles,
+  extends: ["eslint:recommended", "plugin:@typescript-eslint/recommended"],
   parser: "@typescript-eslint/parser",
   parserOptions: {
     project: "tsconfig.json",
     tsconfigRootDir: __dirname,
     ecmaFeatures: {
-      jsx: true
+      jsx: true,
     },
     ecmaVersion: 12,
     sourceType: "module",
   },
-  plugins: [
-    "@typescript-eslint",
-  ],
-  ignorePatterns: [
-    ".eslintrc.js",
-  ],
-  rules: {
-    "@typescript-eslint/strict-boolean-expressions": "error",
-    "@typescript-eslint/no-unnecessary-condition": "error",
-    "@typescript-eslint/array-type": "error",
-    "@typescript-eslint/switch-exhaustiveness-check": "error",
-    "@typescript-eslint/prefer-nullish-coalescing": "error",
-    "@typescript-eslint/no-unnecessary-boolean-literal-compare": "error",
-    "@typescript-eslint/no-invalid-void-type": "error",
-    "@typescript-eslint/no-base-to-string": "error"
-  },
+  plugins: ["@typescript-eslint"],
+  rules: {},
 };

.github/workflows/ci.yaml

@@ -0,0 +1,30 @@
+name: ci
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+  workflow_dispatch: {} # support manual runs
+# Prevent writing to the repository using the CI token.
+# Ref: https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions#permissions
+permissions: read-all
+jobs:
+  ci:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 1
+      - name: Install Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: 1.18
+      - name: Install Node
+        uses: actions/setup-node@v3
+        with:
+          node-version: 16
+      - name: Generate
+        run: make generate && make checkgenerate
+      - name: Build
+        run: make build && make checkgenerate

.gitignore

@@ -1 +1,2 @@
+/.tmp/
 node_modules/

.prettierignore

@@ -0,0 +1 @@
+/dist

Makefile

@@ -1,13 +1,56 @@
+# See https://tech.davis-hansson.com/p/make/
+SHELL := bash
+.DELETE_ON_ERROR:
+.SHELLFLAGS := -eu -o pipefail -c
+.DEFAULT_GOAL := all
+MAKEFLAGS += --warn-undefined-variables
+MAKEFLAGS += --no-builtin-rules
+MAKEFLAGS += --no-print-directory
+BIN := .tmp/bin
+COPYRIGHT_YEARS := 2020-2022
+LICENSE_IGNORE := -e dist\/
+
+.PHONY: all
+all: ## Format, Lint and build (default)
+	$(MAKE) build
+
+.PHONY: format
+format: node_modules
+	npm run format
+
+.PHONY: lint
+lint: node_modules
+	npm run lint
+
 .PHONY: build
-build:
-	@tsc
-	@eslint ./src
-	@esbuild \
-		--minify \
-		--bundle \
-		--sourcemap \
-		'--define:process.env.NODE_ENV="production"' \
-		--outdir=dist \
-		--platform=node \
-		--target=node12 \
-		./src/main.ts
+build: node_modules format lint
+	npm run build
+
+.PHONY: generate
+generate: $(BIN)/license-header ## Regenerate licenses
+	@# We want to operate on a list of modified and new files, excluding
+	@# deleted and ignored files. git-ls-files can't do this alone. comm -23 takes
+	@# two files and prints the union, dropping lines common to both (-3) and
+	@# those only in the second file (-2). We make one git-ls-files call for
+	@# the modified, cached, and new (--others) files, and a second for the
+	@# deleted files.
+	comm -23 \
+		<(git ls-files --cached --modified --others --no-empty-directory --exclude-standard | sort -u | grep -v $(LICENSE_IGNORE) ) \
+		<(git ls-files --deleted | sort -u) | \
+		xargs $(BIN)/license-header \
+			--license-type apache \
+			--copyright-holder "Buf Technologies, Inc." \
+			--year-range "$(COPYRIGHT_YEARS)"
+
+.PHONY: checkgenerate
+checkgenerate:
+	@# Used in CI to verify that `make generate` doesn't produce a diff.
+	test -z "$$(git status --porcelain | tee /dev/stderr)"
+
+node_modules: package-lock.json
+	npm ci
+
+$(BIN)/license-header: Makefile
+	@mkdir -p $(@D)
+	GOBIN=$(abspath $(@D)) go install \
+		  github.com/bufbuild/buf/private/pkg/licenseheader/cmd/[email protected]