[RFR] Bootstrap

- bootstrap project with babel, eslint, prettier & jest
- includes files for POC from graphql demo
- includes example data

Author: djhi

.babelrc

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+{
+  "presets": [
+    "es2015",
+    "stage-0"
+  ],
+  "plugins": [
+    [
+      "transform-runtime",
+      {
+        "polyfill": false,
+        "regenerator": true
+      }
+    ]
+  ],
+  "env": {
+    "test": {
+      "plugins": [
+        ["istanbul", { "exclude": "**/*.spec.js" }]
+      ]
+    }
+  }
+}

.eslintrc

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+{
+    "parser": "babel-eslint",
+    "env": {
+        "es6": true,
+        "mocha": true,
+        "node": true,
+        "jest/globals": true
+    },
+    "extends": [
+        "eslint:recommended",
+        "plugin:import/errors",
+        "plugin:import/warnings",
+        "prettier"
+    ],
+    "plugins": [
+        "prettier",
+        "jest"
+    ],
+    "rules": {
+        "prettier/prettier": ["error", {
+            "singleQuote": true,
+            "tabWidth": 4,
+            "trailingComma": "all"
+        }],
+        "import/no-extraneous-dependencies": "off",
+        "no-console": ["error", { "allow": ["warn", "error"] }],
+        "no-unused-vars": ["error", { "ignoreRestSiblings": true }]
+    }
+}

.gitignore

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+lib
+node_modules
+.nvmrc
+.nyc_output
+.coverage-cache
+coverage
+yarn-error.log

.npmignore

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+src
+.babelrc
+.eslintrc
+Makefile

Makefile

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+.PHONY: build help
+
+help:
+	@grep -E '^[a-zA-Z0-9_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'
+
+install: package.json ## Install dependencies
+	@yarn
+
+clean: ## Clean up the lib folder for building
+	@rm -rf lib
+
+build: clean ## Compile ES6 files to JS
+	@NODE_ENV=production ./node_modules/.bin/babel \
+		--out-dir=lib \
+		--ignore=*.test.js \
+		./src
+
+watch: ## continuously compile ES6 files to JS
+	@NODE_ENV=production ./node_modules/.bin/babel \
+		--out-dir=lib \
+		--ignore='*.test.js' \
+		--watch \
+		./src
+
+test: ## Launch unit tests
+	@./node_modules/.bin/jest"
+
+watch-test: ## Launch unit tests and watch for changes
+	@./node_modules/.bin/jest --watch"
+
+format: ## Format the source code
+	@./node_modules/.bin/eslint --fix ./src