SVN限制message字符个数及格式的实例有哪些？

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#/bin/bash

REPOS="$1"
TXN="$2"

# Make sure that the log message contains some text.
SVNLOOK=/usr/bin/svnlook

LOGMSG=`$SVNLOOK log -t "$TXN" "$REPOS" | grep "[a-zA-Z0-9]" | wc -c`
MSG=`$SVNLOOK log -t "$TXN" "$REPOS"`
echo $LOGMSG
#check log message more than 15_chars
if [ "$LOGMSG" -le 15 ];
then
# echo -e "[Commit]log message cann't be empty! YOU MUST input more than 20_chars as comment! " 1>&2
 echo -e "[Commit]注释信息不能为空且不少于15个字符! " 1>&2
 exit 1
fi

#if [[ "$MSG" == "["*"]"* ]];
if [[ "$MSG" == "["[A-Z]-[A-Z][0-9][0-9][0-9][0-9][0-9][0-9]-[0-9][0-9]"]"* ]];
then
 exit 0
# echo -e "[Commit]log message cann't be empty! YOU MUST input more than 20_chars as comment! " 1>&2
else
 echo -e "[Commit]注释信息不要遗漏产品编号,如[W-P170122-08],若无产品编号请以[A-A000000-00]开头填写备注,谢谢! " 1>&2
 exit 1
fi
# All checks passed, so allow the commit.
exit 0
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