chore(scripts): add guided publish script

Author: benlesh

publish.sh

@@ -0,0 +1,65 @@
+#!/bin/bash
+
+echo "Publish master or stable?"
+select branch in "master" "stable"; do
+
+  read -p "You selected $branch. [Enter] to continue"
+  git checkout $branch
+
+  git pull upstream $branch
+
+  read -p "Just pulled $branch from upstream. If everything is okay, hit [Enter]"
+
+  echo "Clear node_modules?"
+  select yn in "Yes" "No"; do
+    case $yn in
+      Yes) rm -rf node_modules/; npm i; break;;
+      No) echo "Skipped clearing node_modules"; break;;
+    esac
+  done
+
+  echo "What type of publish?"
+  select version_type in "patch" "minor" "major"; do
+    read -p "Creating commit and tag for a $version_type release. Press [Enter].";
+
+    # Use npm to increment the version and capture it
+    version_with_v=`npm version $version_type`
+
+    # Remove the "v" from v8.8.8 to get 8.8.8
+    version=`echo $version_with_v | cut -b 2-`
+
+    # Remove npm's v8.8.8 tag and replace it with 8.8.8
+    # because that's what we've always done
+    git tag -d $version_with_v
+
+    echo "Deleted tag because it's wrong, no worries, we'll tag again in a sec"
+
+    echo "Generating CHANGELOG.md"
+    npm run generate_changelog
+
+    # Quickly show changes to verify
+    git diff
+    read -p "Examine and correct CHANGELOG.md. [Enter] to continue"
+
+    git tag $version
+
+
+    read -p "git tag updated to $version; [Enter] to continue";
+    break
+  done
+
+
+  read -p "Ready to publish @reactivex/rxjs@$version. [Enter] to continue"
+  npm publish
+
+  read -p "Ready to publish rxjs@$version. [Enter] to continue"
+  cd dist/package/
+  npm publish
+  cd ../../
+
+  read -p "Ready to push $branch to upstream. [Enter] to continue"
+  git push upstream $branch
+  git push upstream --tags
+
+  break
+done