chore: more setup with linter/jest and ts

.eslintrc

@@ -8,7 +8,7 @@
         "project": "tsconfig.json",
         "sourceType": "module"
     },
-    "plugins": ["@typescript-eslint", "import"],
+    "plugins": ["@typescript-eslint", "import", "jest"],
     "extends": [
         "eslint:recommended",
         "plugin:@typescript-eslint/recommended",
@@ -40,7 +40,8 @@
             "files": ["**/*.test.ts"],
             "env": {
                 "jest/globals": true
-            }
+            },
+            "extends": ["plugin:jest/recommended", "plugin:jest/style"]
         }
     ]
 }

.gitlab-ci.yml

@@ -4,6 +4,7 @@ before_script:
 cache:
     key: "$CI_COMMIT_REF_SLUG"
     paths:
+        - "tsconfig.build.tsbuildinfo"
         - "node_modules/"
 
 .base:
@@ -15,13 +16,13 @@ build:
     extends: .base
     stage: build
     script:
-        - "yarn run eslint ./src"
         - "yarn build"
 
 test:
     extends: .base
     stage: test
     script:
+        - "yarn lint"
         - "yarn test"
 
 # TODO automatically create tags from builds on master

package.json

@@ -8,7 +8,8 @@
     "license": "MIT",
     "type": "module",
     "scripts": {
-        "build": "tsc",
+        "lint": "eslint ./src",
+        "build": "tsc --build tsconfig.build.json",
         "test": "jest"
     },
     "jest": {
@@ -20,6 +21,7 @@
         "@typescript-eslint/parser": "^4.17.0",
         "eslint": "^7.21.0",
         "eslint-plugin-import": "^2.22.1",
+        "eslint-plugin-jest": "^24.2.1",
         "jest": "^26.6.3",
         "ts-jest": "^26.5.3",
         "typescript": "^4.2.3"

src/index.test.ts

@@ -1,3 +1,3 @@
-describe.only("todo", () => {
+describe("todo", () => {
     test.todo("hello world!");
 });

tsconfig.build.json

@@ -0,0 +1,5 @@
+{
+    "extends": "./tsconfig.json",
+    "include": ["src/**/*.ts"],
+    "exclude": ["**/*.test.ts"]
+}

tsconfig.json

@@ -13,9 +13,10 @@
 
         "declaration": true,
         "strict": true,
-        "esModuleInterop": true
+        "esModuleInterop": true,
+        "incremental": true
     },
 
     "include": ["src/**/*.ts"],
-    "exclude": ["node_modules/", "**/*.test.ts"]
+    "exclude": ["node_modules/"]
 }

yarn.lock

@@ -666,7 +666,7 @@
     semver "^7.3.2"
     tsutils "^3.17.1"
 
-"@typescript-eslint/[email protected]":
+"@typescript-eslint/[email protected]", "@typescript-eslint/experimental-utils@^4.0.1":
   version "4.17.0"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/experimental-utils/-/experimental-utils-4.17.0.tgz#762c44aaa1a6a3c05b6d63a8648fb89b89f84c80"
   integrity sha512-ZR2NIUbnIBj+LGqCFGQ9yk2EBQrpVVFOh9/Kd0Lm6gLpSAcCuLLe5lUCibKGCqyH9HPwYC0GIJce2O1i8VYmWA==
@@ -1562,6 +1562,13 @@ eslint-plugin-import@^2.22.1:
     resolve "^1.17.0"
     tsconfig-paths "^3.9.0"
 
+eslint-plugin-jest@^24.2.1:
+  version "24.2.1"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-jest/-/eslint-plugin-jest-24.2.1.tgz#7e84f16a3ca6589b86be9732a93d71367a4ed627"
+  integrity sha512-s24ve8WUu3DLVidvlSzaqlOpTZre9lTkZTAO+a7X0WMtj8HraWTiTEkW3pbDT1xVxqEHMWSv+Kx7MyqR50nhBw==
+  dependencies:
+    "@typescript-eslint/experimental-utils" "^4.0.1"
+
 eslint-scope@^5.0.0, eslint-scope@^5.1.1:
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-5.1.1.tgz#e786e59a66cb92b3f6c1fb0d508aab174848f48c"