E2E test Babel with itself before publishing (#10569)

* Add e2e test using Babel itself

* Make checks run again

scripts/integration-tests/utils/cleanup.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+
+function cleanup {
+  echo "Cleaning up."
+  stopLocalRegistry
+
+  if [ -n "$GIT_E2E_SETUP" ]; then
+    cleanupE2Egit
+  fi
+}
+
+# Error messages are redirected to stderr
+function handle_error {
+  echo "$(basename $0): ERROR! An error was encountered executing line $1." 1>&2;
+  cleanup
+  echo "Exiting with error." 1>&2;
+  exit 1
+}
+
+function handle_exit {
+  cleanup
+  echo "Exiting without error." 1>&2;
+  exit
+}
+
+# Exit the script with a helpful error message when any error is encountered
+trap 'set +x; handle_error $LINENO $BASH_COMMAND' ERR
+
+# Cleanup before exit on any termination signal
+trap 'set +x; handle_exit' SIGQUIT SIGTERM SIGINT SIGKILL SIGHUP

scripts/integration-tests/utils/git.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+
+original_git_branch=`git rev-parse --abbrev-ref HEAD`
+tmp_branch_name="integration-tests-$(date +'%F-%H-%M-%N')"
+original_user_name=`git config user.name`
+original_user_email=`git config user.email`
+
+export GIT_E2E_SETUP="true"
+
+function initializeE2Egit {
+  git checkout -b $tmp_branch_name
+
+  # This is needed by lerna, which commits when publishing
+  git config user.name "Babel E2E Test"
+  git config user.email "babel-e2e@example.com"
+}
+
+function cleanupE2Egit {
+  # Delete release tags
+  git tag -d $(git tag -l "version-e2e-test-*")
+
+  # Checkout the previous branch
+  git checkout -f $original_git_branch
+  git branch -D $tmp_branch_name
+
+  # Restore git user
+  git config user.name "$original_user_name"
+  git config user.email "$original_user_email"
+}

scripts/integration-tests/utils/local-registry.sh

@@ -0,0 +1,34 @@
+#!/bin/bash
+
+# Copied from https://github.com/facebook/create-react-app/blob/053f9774d3f592c17741d2a86de66a7ca58f90c0/tasks/local-registry.sh
+
+custom_registry_url=http://localhost:4873
+original_npm_registry_url=`npm get registry`
+original_yarn_registry_url=`yarn config get registry`
+default_verdaccio_package=verdaccio@~4.3.3
+
+function startLocalRegistry {
+  # Start local registry
+  tmp_registry_log=`mktemp`
+  echo "Registry output file: $tmp_registry_log"
+  (cd && nohup npx ${VERDACCIO_PACKAGE:-$default_verdaccio_package} -c $1 &>$tmp_registry_log &)
+
+  # Wait for Verdaccio to boot
+  grep -q "http address" <(tail -f $tmp_registry_log)
+
+  # Set registry to local registry
+  npm set registry "$custom_registry_url"
+  yarn config set registry "$custom_registry_url"
+}
+
+function loginLocalRegistry {
+  # Login so we can publish packages
+  (cd && npx npm-auth-to-token@1.0.0 -u user -p password -e user@example.com -r "$custom_registry_url")
+}
+
+function stopLocalRegistry {
+  # Restore the original NPM and Yarn registry URLs and stop Verdaccio
+  fuser -k 4873/tcp
+  npm set registry "$original_npm_registry_url"
+  yarn config set registry "$original_yarn_registry_url"
+}