Introduce ESLint, Prettier, and NPM to the project

.eslintrc.yml

@@ -0,0 +1,44 @@
+env:
+  browser: true
+  es2021: true
+extends: ["airbnb-base", "plugin:prettier/recommended"]
+parserOptions:
+  ecmaVersion: latest
+  sourceType: module
+rules:
+  no-await-in-loop:
+    - warn
+  radix:
+    - error
+    - as-needed
+  default-param-last:
+    - warn
+  no-underscore-dangle: "off"
+  no-param-reassign:
+    - warn
+  class-methods-use-this:
+    - warn
+  no-unused-vars:
+    - warn
+  no-nested-ternary: "off"
+  no-restricted-syntax:
+    - warn
+    - selector: ForInStatement
+      message:
+        for..in loops iterate over the entire prototype chain, which is virtually
+        never what you want. Use Object.{keys,values,entries}, and iterate over the
+        resulting array.
+    - selector: LabeledStatement
+      message:
+        Labels are a form of GOTO; using them makes code confusing and hard to
+        maintain and understand.
+    - selector: WithStatement
+      message:
+        "`with` is disallowed in strict mode because it makes code impossible
+        to predict and optimize."
+  import/extensions:
+    - warn
+    - always
+settings:
+  import/extensions:
+    - ".js"

.gitignore

@@ -1,3 +1,4 @@
+# Ignore binary compendia packs.
 packs/armor
 packs/armor*
 packs/firearms
@@ -9,4 +10,7 @@ packs/operation-code-name-generator*
 packs/operation-code-name-generator-macro
 packs/operation-code-name-generator-macro*
 packs/pregens
-packs/pregens*
+packs/pregens*
+
+# Ignore npm modules
+node_modules

.prettierignore

@@ -0,0 +1,25 @@
+# These are generated automatically by external packages. Let them do their thing.
+**/.git
+**/node_modules
+**/package-lock.json
+
+# These contain fonts, icons, and images, which are static files.
+**/assets
+**/documentation/images
+
+# Ignore binary compendia packs.
+packs/armor
+packs/armor*
+packs/firearms
+packs/firearms*
+packs/hand-to-hand-weapons
+packs/hand-to-hand-weapons*
+packs/operation-code-name-generator
+packs/operation-code-name-generator*
+packs/operation-code-name-generator-macro
+packs/operation-code-name-generator-macro*
+packs/pregens
+packs/pregens*
+
+# Ignore handlebars files as Prettier cannot handle these currently.
+**/*.html

.prettierrc.json

@@ -0,0 +1,3 @@
+{
+  "singleQuote": false
+}

.vscode/extensions.json

@@ -0,0 +1,4 @@
+{
+  "recommendations": ["dbaeumer.vscode-eslint", "esbenp.prettier-vscode"],
+  "unwantedRecommendations": []
+}

.vscode/settings.json

@@ -0,0 +1,4 @@
+{
+  "editor.defaultFormatter": "esbenp.prettier-vscode",
+  "editor.formatOnSave": true
+}

package.json

@@ -0,0 +1,27 @@
+{
+  "name": "deltagreen",
+  "version": "1.3.1",
+  "description": "This is a fan made but now officially supported rules implementation (system) for [Foundry Virtual Tabletop](https://foundryvtt.com/) system for Delta Green: The RPG, based on the _Agent's Handbook_ rule set from Arc Dream Publishing (_**not** the Call of Cthulu rules_).",
+  "main": "deltagreen.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/TheLastScrub/delta-green-foundry-vtt-system-unofficial.git"
+  },
+  "author": "",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/TheLastScrub/delta-green-foundry-vtt-system-unofficial/issues"
+  },
+  "homepage": "https://github.com/TheLastScrub/delta-green-foundry-vtt-system-unofficial#readme",
+  "dependencies": {
+    "eslint": "^8.50.0",
+    "eslint-config-airbnb-base": "^15.0.0",
+    "eslint-plugin-import": "^2.28.1",
+    "eslint-plugin-prettier": "^5.0.0",
+    "eslint-config-prettier": "^9.0.0"
+  },
+  "devDependencies": {}
+}