Fetch Discourse usernames from smart contract (#85)

.github/workflows/discourse.yml

@@ -0,0 +1,28 @@
+name: Discourse Usernames
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: data-sources/discourse/
+    strategy:
+      matrix:
+        node-version: [16.x, 18.x]
+    steps:
+    - uses: actions/checkout@v3
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v3
+      with:
+        node-version: ${{ matrix.node-version }}
+        cache: 'npm'
+        cache-dependency-path: data-sources/discourse/package-lock.json
+    - run: npm install
+    - run: npm run lint
+    - run: npm run build

.github/workflows/generate-datasets-weekly.yml

@@ -95,9 +95,46 @@ jobs:
       - name: Push Changes
         run: git push
 
-  sourcecred:
+  discourse:
     needs: github
     runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: data-sources/discourse/
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Pull changes
+        run: |
+          git fetch
+          git pull
+
+      - name: Use Node.js 18.x
+        uses: actions/setup-node@v3
+        with:
+          node-version: 18.x
+          cache: npm
+          cache-dependency-path: data-sources/discourse/package-lock.json
+
+      - name: Install Node.js Packages 🔧
+        run: npm install
+
+      - run: npm run build
+      - run: npm run generate-csv
+
+      - name: Commit Changes
+        run: |
+          git config user.name 'NationCred bot'
+          git config user.email '[email protected]'
+          git add output/*
+          git commit --allow-empty -m 'generate discourse dataset'
+
+      - name: Push Changes
+        run: git push
+
+  sourcecred:
+    needs: discourse
+    runs-on: ubuntu-latest
     defaults:
       run:
         working-directory: data-sources/sourcecred/

data-sources/discourse/.eslintrc.json

@@ -0,0 +1,23 @@
+{
+  "env": {
+      "browser": true,
+      "es2021": true
+  },
+  "extends": [
+      "eslint:recommended",
+      "plugin:@typescript-eslint/recommended"
+  ],
+  "overrides": [
+  ],
+  "parser": "@typescript-eslint/parser",
+  "parserOptions": {
+      "ecmaVersion": "latest",
+      "sourceType": "module"
+  },
+  "plugins": [
+      "@typescript-eslint"
+  ],
+  "rules": {
+    "@typescript-eslint/no-var-requires": 0
+  }
+}

data-sources/discourse/README.md

@@ -0,0 +1,35 @@
+# Discourse
+
+https://forum.nation3.org/
+
+## Datasets
+
+- `output/discourse-usernames.csv`
+
+  Contains the link between a Discourse username and an Ethereum address.
+
+## Install
+
+```
+npm install
+```
+
+## Lint
+
+```
+npm run lint
+```
+
+## Build & Run
+
+### Build
+
+```
+npm run build
+```
+
+### Generate Usernames CSV
+
+```
+npm run generate-csv
+```

data-sources/discourse/abis/Discourse.json

@@ -0,0 +1,43 @@
+{
+	"abi": [{
+		"anonymous": false,
+		"inputs": [],
+		"name": "UsernameDeleted",
+		"type": "event"
+	}, {
+		"anonymous": false,
+		"inputs": [],
+		"name": "UsernameUpdated",
+		"type": "event"
+	}, {
+		"inputs": [],
+		"name": "deleteUsername",
+		"outputs": [],
+		"stateMutability": "nonpayable",
+		"type": "function"
+	}, {
+		"inputs": [{
+			"internalType": "string",
+			"name": "username",
+			"type": "string"
+		}],
+		"name": "updateUsername",
+		"outputs": [],
+		"stateMutability": "nonpayable",
+		"type": "function"
+	}, {
+		"inputs": [{
+			"internalType": "address",
+			"name": "",
+			"type": "address"
+		}],
+		"name": "usernames",
+		"outputs": [{
+			"internalType": "string",
+			"name": "",
+			"type": "string"
+		}],
+		"stateMutability": "view",
+		"type": "function"
+	}]
+}