[DNM] test upload #33

	name: Sentry PR iOS Upload (Size Analysis)

	on:
	pull_request:
	branches: [main]
	paths: [ios/**, .github/workflows/ios_sentry_upload_pr.yml]

	jobs:
	build:
	runs-on: ubuntu-latest
	defaults:
	run:
	working-directory: ./ios

	steps:
	- name: Checkout PR HEAD
	uses: actions/checkout@v5
	with:
	fetch-depth: 2
	ref: ${{ github.event.pull_request.head.sha }}

	- name: Fetch base branch tip
	run: \|
	git -c protocol.version=2 fetch --no-tags --prune --filter=blob:none origin \
	"+refs/heads/${{ github.base_ref }}:refs/remotes/origin/${{ github.base_ref }}"
	git show -s --oneline "origin/${{ github.base_ref }}"

	- name: Compute merge-base (BASE_SHA)
	shell: bash
	run: \|
	# Be strict about failures, but avoid -u (unbound var) because we build BASE_SHA progressively
	set -e -o pipefail

	BASE_REF="origin/${{ github.base_ref }}"

	echo "HEAD commit:"
	git show -s --oneline HEAD
	echo "Base ref:"
	git show -s --oneline "$BASE_REF" \|\| { echo "Missing $BASE_REF"; exit 1; }

	# Try fork-point first; if it fails or is empty, fall back to plain merge-base
	BASE_SHA=""
	if BASE_SHA=$(git merge-base --fork-point "$BASE_REF" HEAD 2>/dev/null); then
	:
	fi
	if [[ -z "$BASE_SHA" ]]; then
	BASE_SHA=$(git merge-base HEAD "$BASE_REF")
	fi

	echo "BASE_SHA=$BASE_SHA"
	echo "BASE_SHA=$BASE_SHA" >> "$GITHUB_ENV"

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