Create release PR (#3868)

* add ./scripts/create-release.sh

* use negate for regEx and update script name

* create-release-pr

* add deleted bits back

* remove node -v

* use metamaskbot

* remove with

.github/workflows/create-release-pr.yml

@@ -0,0 +1,41 @@
+name: Create Release Pull Request
+
+on:
+  workflow_dispatch:
+    inputs:
+      base-branch:
+        description: 'The base branch for git operations and the pull request.'
+        default: 'main'
+        required: true
+      semver-version:
+        description: 'A SemVer version.'
+        required: true
+      version-number:
+        description: 'A specific version.'
+        required: true
+
+jobs:
+  create-release-pr:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      pull-requests: write
+    steps:
+      - uses: actions/checkout@v2
+      - name: Get Node.js version
+        id: nvm
+        run: echo ::set-output name=NODE_VERSION::$(cat .nvmrc)
+      - uses: actions/setup-node@v2
+        with:
+          node-version: ${{ steps.nvm.outputs.NODE_VERSION }}
+      - name: Set Versions
+        id: set-versions
+        shell: bash
+        run: SEMVER_VERSION=${{ github.event.inputs.semver-version }} VERSION_NUMBER=${{ github.event.inputs.version-number }} yarn create-release
+      - name: Create Release PR
+        id: create-release-pr
+        shell: bash
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          ./scripts/create-release-pr.sh ${{ github.event.inputs.semver-version }}

scripts/create-release-pr.sh

@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+
+set -e
+set -u
+set -o pipefail
+
+NEW_VERSION="${1}"
+RELEASE_BRANCH_PREFIX="release/"
+
+if [[ -z $NEW_VERSION ]]; then
+  echo "Error: No new version specified."
+  exit 1
+fi
+
+RELEASE_BRANCH_NAME="${RELEASE_BRANCH_PREFIX}${NEW_VERSION}"
+RELEASE_BODY="This is the release candidate for version ${NEW_VERSION}."
+
+# maybe use metamaskbot for this?
+git config user.name metamaskbot
+git config user.email metamaskbot@users.noreply.github.com
+
+git checkout -b "${RELEASE_BRANCH_NAME}"
+
+if ! (git add . && git commit -m "${NEW_VERSION}");
+then
+    echo "Error: No changes detected."
+    exit 1
+fi
+
+git push --set-upstream origin "${RELEASE_BRANCH_NAME}"
+
+gh pr create \
+  --draft \
+  --title "${NEW_VERSION}" \
+  --body "${RELEASE_BODY}" \
+  --head "${RELEASE_BRANCH_NAME}";