git autodeploy script when it matches the string "[deploy]"

post-receive.sh

#!/bin/sh
#
# git autodeploy script when it matches the string "[deploy]"
#
# @author    icyleaf <[email protected]>
# @link      http://icyleaf.com
# @version   0.1
#
# Usage:
#       1. put this into the post-receive hook file itself below
#       2. `chmod +x post-recive` 
#       3. Done!

# Check the remote git repository whether it is bare
IS_BARE=$(git rev-parse --is-bare-repository)
if [ -z "$IS_BARE" ]; then
	echo >&2 "fatal: post-receive: IS_NOT_BARE"
	exit 1
fi

# Get the latest commit subject
SUBJECT=$(git log -1 --pretty=format:"%s")

# Deploy the HEAD sources to publish
IS_PULL=$(echo "$SUBJECT" | grep "\[deploy\]")
if [ -z "$IS_PULL" ]; then
	echo >&2 "tips: post-receive: IS_NOT_PULL"
	exit 1
fi

# Check the deploy dir whether it exists
DEPLOY_DIR=/home/icyleaf/php/icyleaf/
if [ ! -d $DEPLOY_DIR ] ; then
	echo >&2 "fatal: post-receive: DEPLOY_DIR_NOT_EXIST: \"$DEPLOY_DIR\""
	exit 1
fi

# Check the deploy dir whether it is git repository
#
#IS_GIT=$(git rev-parse --git-dir 2>/dev/null)
#if [ -z "$IS_GIT" ]; then
#	echo >&2 "fatal: post-receive: IS_NOT_GIT"
#	exit 1
#fi

# Goto the deploy dir and pull the latest sources
cd $DEPLOY_DIR
#env -i git reset --hard
env -i git pull

请问用户名和密码如何解决

@hezll 证书啊

@kidlj http://unix.stackexchange.com/questions/29608/why-is-it-better-to-use-usr-bin-env-name-instead-of-path-to-name-as-my

有一事不明：
用SUBJECT=$(git log -1 --pretty=format:"%s")得到得不是裸库得log吗？因为在最后才执行得cd $DEPLOY_DIR到醒目目录，难道说使用裸库做得一次提交匹配[deploy]？