ops: workflow for trunk-based strategy #135

	name: Check PR

	# Controls when the workflow will run
	on:
	pull_request:
	branches:
	- main
	types:
	- opened
	- synchronize
	- reopened

	permissions:
	pull-requests: write

	# A workflow run is made up of one or more jobs that can run sequentially or in parallel
	jobs:

	labeler:
	name: Add label to PR based on the paths of files being changed
	runs-on: ubuntu-latest
	steps:
	- uses: actions/labeler@ac9175f8a1f3625fd0d4fb234536d26811351594 # pin@v4

	check_pr_size:
	name: Check PR size doesn't break set limit
	runs-on: ubuntu-latest
	steps:
	# checkout your code with your git history
	- uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # pin@v3
	with:
	fetch-depth: 0

	- name: Get total lines changed
	run: \|
	size=$(git diff --stat origin/develop --diff-filter=d \
	\| grep -v .lock \
	\| awk -F"\|" '{ print $2 }' \
	\| awk '{ print $1 }' \
	\| sed '/^$/d' \
	\| paste -sd+ - \
	\| bc)

	echo "size=${size}" >> $GITHUB_ENV
	echo ""
	echo "Total lines changed (note: *.lock files are excluded from this count): "
	echo $size
	shell: bash
	- run: \|
	if [[ $size -gt 500 ]]
	then
	echo "Warning - total lines changed is greater than 500."
	echo "Please consider breaking this PR down."
	exit 1
	fi
	shell: bash

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