pre-push.bak.sh

#!/bin/sh

# An example hook script to verify what is about to be pushed.  Called by "git
# push" after it has checked the remote status, but before anything has been
# pushed.  If this script exits with a non-zero status nothing will be pushed.
#
# This hook is called with the following parameters:
#
# $1 -- Name of the remote to which the push is being done
# $2 -- URL to which the push is being done
#
# If pushing without using a named remote those arguments will be equal.
#
# Information about the commits which are being pushed is supplied as lines to
# the standard input in the form:
#
#   <local ref> <local oid> <remote ref> <remote oid>
#
# This sample shows how to prevent push of commits where the log message starts
# with "WIP" (work in progress).

remote="$1"
url="$2"

logfile=$(git log -n 1 --format='%H' | cut -c 1-7)
logfile=".$logfile.hook.log"

echo "[test] logfile:$logfile" >$logfile

echo "[test] remote:$1" >>$logfile
echo "[test] url:$2" >>$logfile

zero=$(git hash-object --stdin </dev/null | tr '[0-9a-f]' '0')
# echo "[test] zero:$zero" >> $logfile
# zero值是0000000000000000000000000000000000000000

# # npm 默认又新增了一个commit,但是当前运行的钩子的local_oid还是运行npm version前的commit id
# npm version patch -m "NEWVERSION: %s"

while read local_ref local_oid remote_ref remote_oid; do
	echo "[test] 本地要提交的分支:$local_ref" >>$logfile
	echo "[test] 本地要提交的commit id:$local_oid" >>$logfile
	echo "[test] 要提交到的远程分支:$remote_ref" >>$logfile
	echo "[test] 要提交到的远程分支的当前commit id:$remote_oid" >>$logfile
	if test "$local_oid" = "$zero"; then
		# Handle delete
		:
	else
		if test "$remote_oid" = "$zero"; then
			# New branch, examine all commits
			range="$local_oid"
		else
			# Update to existing branch, examine new commits
			range="$remote_oid..$local_oid"
		fi
		echo "[test] range:$range" >>$logfile
		# Check for WIP commit
		# 搜索出最新的一条commit message以WIP开头的commit id
		# commit=$(git rev-list -n 1 --grep '^WIP' "$range")
		commit=$(git rev-list -n 1 --grep '^NEWVERSION' "$range")
		echo "[test] commit:$commit" >>$logfile
		if test -n "$commit"; then
			# echo >&2 "Found WIP commit in $local_ref, not pushing"
			# exit 1
			# 空的ifelse block必须加一个冒号,否则报错:Syntax error: "else" unexpected
			:
		else
			# npm 默认又新增了一个commit,但是当前运行的钩子的local_oid还是运行npm version前的commit id
			npm version patch -m "NEWVERSION: %s"
			# !!!⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️这里不能用git push,可能会死循环,因为git push会再次触发pre-push钩子
			# 用git push --no-verify可以跳过pre-push钩子,但是这样就不能检查commit message了
			# 这样虽然结果符合预期,但还是报了一个错误
			# git push --no-verify
			# echo >&1 "自动更新了版本号,请重新提交~" #echo >&1 "message" 和 echo "message" 效果一样, 输出的信息和其他信息混在一起不方便查找
			echo >&2 "自动更新了版本号,请重新提交~"
			# 注释掉的话,导致外面运行了空的push,会报错,但结果符合预期
			exit 1
		fi
	fi
done

exit 0