Build: Release packages under next tag when changes detected on master (#18062)

* Testing lerna on circle

* Remove dependency on test task, fix yarn

* yarn fix

* Run lerna from local bin

* Use packages cache, run lern via npx

* Add packages:build

* Install packages before release

* Remove cache tmp

* add lerna bootstrap

* temporarily add tsignore

* lerna add data package to ui

* Remove @types/lodas resolution

* Try any...

* Typo fix

* Add publishing packages

* update lerna publish script

* Reset git befgore publishing package

* Correct lerna version

* Packages version bump

* Remove postpublish

* Publish to npm

* Set git creds before commit

* Rename job and run it after frontend tests and build passes

* Run next packages release on master but not when tagged with release

* Minor copy

* Update circle's config

* Fix config

scripts/circle-release-next-packages.sh

@@ -0,0 +1,42 @@
+#!/bin/bash
+
+function parse_git_hash() {
+  git rev-parse --short HEAD 2> /dev/null | sed "s/\(.*\)/\1/"
+}
+
+function prapare_version_commit () {
+  echo $'\nCommiting version changes. This commit will not be checked-in!'
+  git config --global user.email "circleci@grafana.com"
+  git config --global user.name "CirceCI"
+  git commit -am "Version commit"
+}
+
+#Get current version from lerna.json
+PACKAGE_VERSION=`grep '"version"' lerna.json | cut -d '"' -f 4`
+# Get short current commit's has
+GIT_SHA=$(parse_git_hash)
+
+echo "Commit: ${GIT_SHA}"
+echo "Current lerna.json version: ${PACKAGE_VERSION}"
+
+# count packages that changed
+count=`npx lerna changed --loglevel silent | awk '{c++} END {print c}'`
+
+if [ -z $count ]; then
+  echo "No changes in packages, skipping packages publishing"
+else
+  echo "Changes detected in ${count} packages"
+  echo "Releasing packages under ${PACKAGE_VERSION}-${GIT_SHA}"
+  npx lerna version ${PACKAGE_VERSION}-${GIT_SHA} --no-git-tag-version --no-push --force-publish -y
+  echo $'\nGit status:'
+  git status -s
+
+  echo $'\nBuilding packages'
+  yarn packages:build
+
+  prapare_version_commit
+
+  echo $'\nPublishing packages'
+  yarn packages:publishNext
+fi
+