Update according to Contributors library guidelines (#42)

.editorconfig

@@ -0,0 +1,13 @@
+# http://editorconfig.org
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.md]
+trim_trailing_whitespace = false

.eslintrc.json

@@ -1,28 +1,29 @@
 {
-  "parserOptions": {
-    "ecmaVersion": 5
-  },
+  "env": { "browser": true, "commonjs": true },
   "extends": "eslint:recommended",
-  "env": {
-    "commonjs": true
-  },
+  "parserOptions": { "ecmaVersion": 5 },
   "rules": {
-    "strict": [2, "global"],
-    "block-scoped-var": 2,
-    "consistent-return": 2,
-    "eqeqeq": [2, "smart"],
-    "guard-for-in": 2,
-    "no-caller": 2,
-    "no-extend-native": 2,
-    "no-loop-func": 2,
-    "no-new": 2,
-    "no-param-reassign": 2,
-    "no-return-assign": 2,
-    "no-unused-expressions": 2,
-    "no-use-before-define": 2,
-    "radix": [2, "always"],
-    "indent": [2, 2],
-    "quotes": [2, "double"],
-    "semi": [2, "always"]
+    "block-scoped-var": "error",
+    "consistent-return": "error",
+    "eqeqeq": "error",
+    "guard-for-in": "error",
+    "no-bitwise": "error",
+    "no-caller": "error",
+    "no-extra-parens": "off",
+    "no-extend-native": "error",
+    "no-loop-func": "error",
+    "no-new": "error",
+    "no-param-reassign": "error",
+    "no-return-assign": "error",
+    "no-sequences": "error",
+    "no-unused-expressions": "error",
+    "no-use-before-define": "error",
+    "no-undef": "error",
+    "no-eq-null": "error",
+    "radix": ["error", "always"],
+    "indent": ["error", 2, { "SwitchCase": 1 }],
+    "quotes": ["error", "double"],
+    "semi": ["error", "always"],
+    "strict": ["error", "global"]
   }
 }

.github/CONTRIBUTING.md

@@ -0,0 +1,5 @@
+# Contributing to Argonaut Core
+
+Thanks for your interest in contributing to `argonaut-core`! We welcome new contributions regardless of your level of experience or familiarity with PureScript.
+
+Every library in the Contributors organization shares a simple handbook that helps new contributors get started. With that in mind, please [read the short contributing guide on purescript-contrib/governance](https://github.com/purescript-contrib/governance/blob/main/contributing.md) before contributing to this library.

.github/ISSUE_TEMPLATE/bug-report.md

@@ -0,0 +1,19 @@
+---
+name: Bug report
+about: Report an issue
+title: ""
+labels: bug
+assignees: ""
+---
+
+**Describe the bug**
+A clear and concise description of the bug.
+
+**To Reproduce**
+A minimal code example (preferably a runnable example on [Try PureScript](https://try.purescript.org)!) or steps to reproduce the issue.
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/change-request.md

@@ -0,0 +1,21 @@
+---
+name: Change request
+about: Propose an improvement to this library
+title: ""
+labels: ""
+assignees: ""
+---
+
+**Is your change request related to a problem? Please describe.**
+A clear and concise description of the problem.
+
+Examples:
+
+- It's frustrating to have to [...]
+- I was looking for a function to [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what a good solution to you looks like, including any solutions you've already considered.
+
+**Additional context**
+Add any other context about the change request here.

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,8 @@
+blank_issues_enabled: false
+contact_links:
+  - name: PureScript Discourse
+    url: https://discourse.purescript.org/
+    about: Ask and answer questions here.
+  - name: Functional Programming Slack
+    url: https://functionalprogramming.slack.com
+    about: For casual chat and questions (use https://fpchat-invite.herokuapp.com to join).

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,11 @@
+**Description of the change**
+Clearly and concisely describe the purpose of the pull request. If this PR relates to an existing issue or change proposal, please link to it. Include any other background context that would help reviewers understand the motivation for this PR.
+
+---
+
+**Checklist:**
+
+- [ ] Added the change to the changelog's "Unreleased" section with a link to this PR and your username
+- [ ] Linked any existing issues or proposals that this pull request should close
+- [ ] Updated or added relevant documentation in the README and/or documentation directory
+- [ ] Added a test for the contribution (if applicable)

.github/workflows/ci.yml

@@ -0,0 +1,51 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Set up PureScript toolchain
+        uses: purescript-contrib/setup-purescript@main
+
+      - name: Cache PureScript dependencies
+        uses: actions/cache@v2
+        with:
+          key: ${{ runner.os }}-spago-${{ hashFiles('**/*.dhall') }}
+          path: |
+            .spago
+            output
+
+      - name: Set up Node toolchain
+        uses: actions/setup-node@v1
+        with:
+          node-version: "12.x"
+
+      - name: Cache NPM dependencies
+        uses: actions/cache@v2
+        env:
+          cache-name: cache-node-modules
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-build-${{ env.cache-name }}-
+            ${{ runner.os }}-build-
+            ${{ runner.os }}-
+
+      - name: Install NPM dependencies
+        run: npm ci
+
+      - name: Build the project
+        run: npm run build
+
+      - name: Run tests
+        run: npm run test

.github/workflows/stale.yml

@@ -0,0 +1,23 @@
+name: "Stale"
+
+on:
+  schedule:
+    - cron: "0 0 * * *"
+
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/stale@v3
+        env:
+          days-until-stale: 60
+          days-until-close: 14
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          stale-issue-message: "This issue is stale because it has been open for ${{ env.days-until-stale }} days with no activity. Remove the stale label or comment to keep this issue open. Otherwise, this issue will be closed in ${{ env.days-until-close }} days."
+          stale-pr-message: "This pull request is stale because it has been open for ${{ env.days-until-stale }} days with no activity. Remove the stale label or comment to keep this pull request open. Otherwise, this pull request will be closed in ${{ env.days-until-close }} days."
+          days-before-stale: ${{ env.days-until-stale }}
+          days-before-close: ${{ env.days-until-close }}
+          stale-issue-label: "stale"
+          stale-pr-label: "stale"
+          exempt-pr-labels: "breaking change"

.gitignore

@@ -1,20 +1,12 @@
-/.*
-!/.gitignore
-!/.github
-!/.travis.yml
+.*
+!.gitignore
+!.github
+!.editorconfig
+!.eslintrc.json
 
-# Dependencies
-bower_components
-node_modules
-
-# Generated files
 output
-dce-output
 generated-docs
+bower_components
 
-# Lockfiles
-package-lock.json
+node_modules
 *.lock
-
-# Extra files
-!/.eslintrc.json