FreeBSD maintainer's guide to blocklist
=======================================

These instructions describe the blocklist vendor import procedure,
following the Committer's Guide
(https://docs.freebsd.org/en/articles/committers-guide/#vendor-import-git).

> [!NOTE]
> This guide follows the convention that a `freebsd` remote is pointing
> to gitrepo.FreeBSD.org/src.git.

1.	Grab our top level directory:

		freebsd=$(git rev-parse --show-toplevel)

2.	Create a Git worktree under a temporary directory:

		worktree=$(mktemp -d -t blocklist)
		git worktree add ${worktree} vendor/blocklist

3.	Clone the blocklist repo (https://github.com/zoulasc/blocklist.git):

		blocklist_repo=$(mktemp -d -t blocklist-repo)
		git clone https://github.com/zoulasc/blocklist.git ${blocklist_repo}
		cd ${blocklist_repo}
		commit=$(git rev-parse HEAD)
		commit_short=$(git rev-parse --short HEAD)
		date=$(git show -s --format=%cd --date=format:%Y-%m-%d)
		tag=$(git show -s --format=%cd --date=format:%Y%m%d)

4.	Copy to the vendor branch using rsync (net/rsync):

		rsync -va --del --exclude=".git" ${blocklist_repo}/ ${worktree}

5.	Take care of added/deleted files:

		cd ${worktree}
		git add -A ${worktree}
		git status
		git diff --staged

6.	Commit:

		message=$(cat <<-EOM
		blocklist ${date} (${commit_short})

		Upstream hash ${commit}.

		Obtained from:	https://github.com/zoulasc/blocklist
		EOM
		)
		git commit -e -m "Vendor import of ${message}"

7.	Tag:

		git tag -a -e -m "Tag ${message}" vendor/blocklist/${tag}

	At this point, the vendor branch can be pushed to the FreeBSD
	repo via:

		git push --follow-tags freebsd vendor/blocklist

8.	Merge from the vendor branch:

		cd ${freebsd}
		git subtree merge -P contrib/blocklist vendor/blocklist

	Some files may have been deleted from FreeBSD's copy of
	blocklist.  When git prompts for these deleted files during the
	merge, choose 'd' (leaving them deleted).

9.	Resolve conflicts.

10.	Diff against the vendor branch:

		git diff --diff-filter=M vendor/blocklist/${tag} HEAD:contrib/blocklist

	Review the diff for any unexpected changes.

11.	Run the FreeBSD changes script:

		cd contrib/blocklist
		sh ./freebsd-changes.sh

12.	If source files have been added or removed, update the
	appropriate makefiles to reflect changes in the vendor's
	Makefile.in.

13.	Build and install world, reboot, test.  Pay particular attention
	to the fingerd(8) and sshd(8) integration.

14.	Commit.

15.	Cleanup:

		rm -fr ${blocklist_repo} ${worktree}
		git worktree prune