infra: Add automatic PR labelling action

Signed-off-by: Teodor Dutu <teodor.dutu@gmail.com>

.github/labeler.yml

@@ -0,0 +1,26 @@
+topic/software-stack:
+- content/chapters/software-stack/**/*
+
+topic/data:
+- content/chapters/data/**/*
+
+topic/compute:
+- content/chapters/compute/**/*
+
+topic/io:
+- content/chapters/io/**/*
+
+topic/app-interact:
+- content/chapters/app-interact/**/*
+
+area/quiz:
+- '**/quiz/*'
+
+area/content:
+- any: ['**/lab/content/*.md', '**/media/**/*', '**/lecture/slides/**/*', '**/*.mdpp']
+
+area/code:
+- any: ['**/lab/support/**/*', '**/lab/solution/**/*', '**/lecture/demo/**/*']
+
+area/infra:
+- all: ['!content/chapters/**/*']

.github/scripts/add-labels.js

@@ -0,0 +1,43 @@
+function getPRFileData(github, context) {   
+    return github.request('GET /repos/{owner}/{repo}/pulls/{pull_number}/files', {
+        owner: context.repo.owner,
+        repo: context.repo.repo,
+        pull_number: context.issue.number
+    })
+}
+
+function addLabelToList(labels, label) {
+    if (!labels.includes(label)) {
+        labels.push(label)
+    }
+}
+
+function createLabelsForPR(github, context) {
+    getPRFileData(github, context).then((data) => {
+        var labels = []
+
+        data.data.forEach((file) => {
+            if (file.status === 'added') {
+                addLabelToList(labels, 'kind/new')
+            }
+            else if (file.status === 'modified' && file.deletions == 0 && file.additions > 0) {
+                addLabelToList(labels, 'kind/improvement')
+            }
+        })
+
+        return labels
+    })
+}
+
+function addLabelsToPR(github, labels) {
+    github.request('POST /repos/{owner}/{repo}/issues/{issue_number}/labels', {
+        owner: context.repo.owner,
+        repo: context.repo.repo,
+        issue_number: context.issue.number,
+        labels: labels
+    })
+}
+
+export default ({github, context}) => {
+    addLabelsToPR(github, context, createLabelsForPR(github, context))
+}

.github/scripts/package.json

@@ -0,0 +1,3 @@
+{
+  "type": "module"
+}

.github/workflows/labeler.yml

@@ -0,0 +1,26 @@
+name: "Pull Request Labeler"
+on:
+- pull_request_target
+on: push
+
+jobs:
+  triage:
+    permissions:
+      contents: read
+      pull-requests: write
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/labeler@v4
+      with:
+        repo-token: "${{ secrets.GITHUB_TOKEN }}"
+        sync-labels: true
+  add-kind-labels:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/github-script@v6
+        with:
+          github-token: "${{ secrets.GITHUB_TOKEN }}"
+          script: |
+            const { default: addLabelsToPR } = await import('${{ github.workspace }}/.github/scripts/add-labels.js') ;
+            await addLabelsToPR({github, context})

.gitignore

@@ -84,3 +84,95 @@ slides.md
 
 # .gif files generated with ffmpeg
 *-generated.gif
+
+# JavaScript files
+
+# compiled output
+/dist
+/tmp
+/out-tsc
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# IDEs and editors
+.idea
+.project
+.classpath
+.c9/
+*.launch
+.settings/
+*.sublime-workspace
+
+# IDE - VSCode
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+
+# misc
+.sass-cache
+connect.lock
+typings
+
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+
+# next.js build output
+.next
+
+# Lerna
+lerna-debug.log
+
+# System Files
+.DS_Store
+Thumbs.db