update


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#!/bin/bash

default_branch="$(git rev-parse --abbrev-ref HEAD)"
default_branch_path="$(git rev-parse --symbolic-full-name HEAD)"

suppress="$(git config --get --type bool --default=false hooks.suppressNotify)"
allowForcePush="$(git config --type=bool hooks.allowForcePush)"
protectedRefs="$(git config --default "$default_branch_path" hooks.protectedRefs)"
addlNotify="$(git config get --value '^([a-zA-Z0-9_.-]+|[0-9.]+|[0-9a-fA-F:.]+):[0-9]{1,5}$' hooks.notify)"

config="$(dirname "$(readlink -f "$0")")"/sh.conf
[ -r "$config" ] && source "$config"

reponame="$(readlink -f .)"
#reponame="${reponame%/.git}"
reponame="${reponame#/home/}"

FORMAT="%C(auto)%h by %an (%ah: %s) sig: %G? %GS 0x%GK https://cgit.space/~$reponame/commit/?id=%h"

ref="$1"
old="$2"
new="$3"

commits=""
forced=""

if ((16#$old == 0)); then # new branch
	:
elif ((16#$new == 0)); then # deleted branch
	commits="!! deleted branch"
elif [ "$old" = "$(git merge-base "$old" "$new")" ]; then # fast-forward update
	:
elif [ "$new" = "$(git merge-base "$old" "$new")" ]; then # rollback
	commits="!! rolled back to $(git describe --always "$new") erasing history through $(git describe --always "$old")"
	forced="true"
else # commit --amend, rebase, or similar
	commits="!! rewrote history from $(git describe --always "$(git merge-base "$old" "$new")") -> $(git describe --always "$new") erasing history through $(git describe --always "$old")"
	forced="true"
fi

#curl -sS -d "[$reponame] $ref $commits" "$H2I" >/dev/null
if [ "$forced" = "true" ]; then
	if [[ $allowForcePush != "true" && $ref =~ $protectedRefs ]]; then
		echo "[$reponame] BLOCKED $ref $commits by $USER" | tee >(notify)
		echo "('git config set hooks.allowForcePush true' on repo to allow)" | tee >(notify)
		exit 1
	else
		: # notify allowed force push?
	fi
fi

exit 0