chore: add multi-gitter script for auto upgrading repos

multi-gitter/README.md

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+# PoC for multi-gitter
+
+PoC for using [multi-gitter](https://github.com/lindell/multi-gitter) to do bulk upgrade over multiple repos
+
+## Steps
+1. install multi-gitter as [described in the repo](https://github.com/lindell/multi-gitter?tab=readme-ov-file#install) 
+1. update the `config.yml` as you see fit (i.e. to include certain repos)
+1. run `multi-gitter run "node $PWD/script.js" --config ./config.yml`

multi-gitter/config.yml

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+commit-message: "fix(app-platform): upgrade platform tools to use vite and react 18"
+repo: # this could be replaced by a regex that targets all repos containing "-app"
+  - dhis2/maintenance-app-beta
+  - dhis2/scheduler-app
+  - dhis2/login-app
+  - dhis2/dashboard-app
+  - dhis2/maps-app
+  - dhis2/data-exchange-app
+draft: true
+clone-dir: .
+# token: GITHUB_TOKEN
+log-level: debug
+branch: upgrade-vite-react
+conflict-strategy: replace
+pr-body: This is a test PR to see if we can automate upgrading app-platform
+

multi-gitter/script.js

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+/**
+ * script to be run on all repos to upgrade to the latest version of app-platform tools
+ * which uses Vite and upgrades to React 18
+ */
+
+const { execSync } = require('child_process')
+const path = require('path')
+
+const packageFile = require(path.join(process.cwd(), './package.json'))
+
+const dependencies = [
+    ...Object.keys(packageFile.dependencies),
+    ...Object.keys(packageFile.devDependencies),
+]
+
+console.info('upgrading cli-app-scripts')
+execSync('yarn add --dev "@dhis2/cli-app-scripts@alpha"', { stdio: 'inherit' })
+
+console.info('upgrading cli-style')
+execSync('yarn add --dev "@dhis2/cli-style@alpha"', { stdio: 'inherit' })
+
+console.info('upgrading the UI library')
+execSync('yarn add --dev "@dhis2/ui"', { stdio: 'inherit' }) //  get the latest version to avoid warnings about defaultProps in React 18
+
+console.info('Run migration script from d2-app-scripts')
+execSync('yarn d2-app-scripts migrate js-to-jsx', { stdio: 'inherit' })
+
+console.info('Deduping dependencies')
+execSync('npx yarn-deduplicate yarn.lock && yarn', { stdio: 'inherit' })
+
+if (dependencies.includes('@testing-library/react')) {
+    console.info('upgrading @testing-library/react')
+    execSync('yarn add @testing-library/react', { stdio: 'inherit' })
+}
+
+if (dependencies.includes('@testing-library/user-event')) {
+    console.info('upgrading @testing-library/user-event')
+    execSync('yarn add @testing-library/user-event', { stdio: 'inherit' })
+}
+
+if (dependencies.includes('@testing-library/jest-dom')) {
+    console.info('upgrading @testing-library/jest-dom')
+    execSync('yarn add @testing-library/jest-dom', { stdio: 'inherit' })
+}
+
+if (dependencies.includes('@testing-library/react-hooks')) {
+    console.info('removing @testing-library/react-hooks')
+    execSync('yarn remove @testing-library/react-hooks', { stdio: 'inherit' })
+    // ToDo: next do a codemod to upgrade uses of old react-hooks
+    // ! this is a naive version of such a codemod
+    execSync(
+        `find ./src -type f -exec sed -i "s#import { renderHook } from '@testing-library/react-hooks'#import { renderHook } from '@testing-library/react'#g" {} \\;`,
+        { stdio: 'inherit' }
+    )
+}
+
+if (dependencies.includes('enzyme-adapter-react-16')) {
+    console.info(
+        'replace enzyme-adapter-react-16 with @cfaester/enzyme-adapter-react-18'
+    )
+    execSync('yarn remove enzyme-adapter-react-16', {
+        stdio: 'inherit',
+    })
+    execSync('yarn add --dev @cfaester/enzyme-adapter-react-18', {
+        stdio: 'inherit',
+    })
+
+    execSync(
+        `find ./src -type f -exec sed -i "s#enzyme-adapter-react-16#@cfaester/enzyme-adapter-react-18#g" {} \\;`,
+        { stdio: 'inherit' }
+    )
+}
+// ToDo: run codemod for changing default props??
+
+// ToDo: what to do about resolutions in package.json?
+
+execSync('npx yarn-deduplicate yarn.lock && yarn', { stdio: 'inherit' })