clean all #2

	name: "Prune old GHCR images"

	on:
	push:
	branches: [ docker ]

	permissions:
	contents: read
	packages: write

	jobs:
	prune:
	runs-on: ubuntu-latest

	steps:
	- name: Install dependencies
	run: \|
	sudo apt-get update
	sudo apt-get install -y jq
	curl -fsSL https://cli.github.com/packages/githubcli-archive-keyring.gpg \
	\| sudo dd of=/usr/share/keyrings/githubcli-archive-keyring.gpg
	echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/githubcli-archive-keyring.gpg] https://cli.github.com/packages stable main" \
	\| sudo tee /etc/apt/sources.list.d/github-cli.list > /dev/null
	sudo apt-get update
	sudo apt-get install -y gh

	- name: Delete all but the newest version for CPU & GPU images
	env:
	GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	OWNER: ${{ github.repository_owner }}
	run: \|
	set -euo pipefail

	for IMAGE in deep-learning-crash-course deep-learning-crash-course-gpu; do
	echo
	echo "🔍 Processing package: $OWNER/$IMAGE"
	versions=$(gh api --paginate \
	-H "Accept: application/vnd.github.v3+json" \
	/orgs/$OWNER/packages/container/$IMAGE/versions)

	# delete every version except the newest
	echo "$versions" \| jq -c '.[]' \| while read version; do
	id=$(echo "$version" \| jq -r '.id')
	echo "→ Deleting version $id of $IMAGE"
	for attempt in 1 2 3; do
	if gh api -X DELETE \
	-H "Accept: application/vnd.github.v3+json" \
	/orgs/$OWNER/packages/container/$IMAGE/versions/$id; then
	echo " ✅ Deleted $id"
	break
	else
	echo " ⚠️ Attempt $attempt failed, retrying in $((5*attempt))s…"
	sleep $((5*attempt))
	fi
	done
	done
	done

Provide feedback