SVN 的 Pre-Commit 挂钩脚本检查 TaskID 所需的帮助

Question

我有一个预提交挂钩脚本来检查日志消息中的 TaskID。我无法弄清楚相同的逻辑。在 Highlighted **if** 语句中，我需要一个逻辑来检查第一行的第一个字母是否是 TaskID：（多位数字）-（空格）（日志消息）

预提交钩子：

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

# Check log message for proper task/bug identification

if [ -x ${REPOS}/hooks/check_log_message.sh ]; then
${REPOS}/hooks/check_log_message.sh "${REPOS}" "${TXN}" 1>&2 || exit 1
fi
exit 0

=======>>>check_log_message.sh

#!/bin/bash

REPOS="${1}"
TXN="${2}"

SVNLOOK=/usr/bin/svnlook

LOG_MSG_LINE1=`${SVNLOOK} log -t "${TXN}" "${REPOS}" | head -n1`

**if (echo "${LOG_MSG_LINE1}" | egrep '^[T][a][s][k][I][D][:]?[-][1-9]
[\s]*.*$' > /dev/null;) \
|| (echo "${LOG_MSG_LINE1}" | egrep '^[a-zA-Z]+[-][1-9][0-9]*[:]?[\s]*.*$' 
> /dev/null;)**
then
exit 0
else
echo ""
echo "Your log message does not contain a TaskID(or bad format used)"
echo "The TaskID must be the first item on the first line of the log 
message."
echo ""
echo "Proper TaskID format--> TaskID:xxx- 'Your commit message'  "
exit 1
fi

Answer 1

我猜您的问题涉及在 Bash 中使用条件。 您可以直接使用程序的退出代码。 例如，如果egrep 匹配某些东西，它会以代码 0 退出，这意味着成功， 否则以非零值退出， 这意味着失败。 你可以在条件下使用它，例如：

if command; then
    echo success
else
    echo failure
fi

其中command可以是管道，例如：

if ${SVNLOOK} log -t "${TXN}" "${REPOS}" | head -n1 | egrep -q ^TaskID:
then
    exit 0
fi

这意味着如果日志的第一行以 TaskID: 开头，然后以 0 退出。除了 if 语句，您还可以使用带有 && 的较短形式，如下所示：

${SVNLOOK} log -t "${TXN}" "${REPOS}" | head -n1 | egrep -q ^TaskID: && exit 0

在这两个示例中，我使用-q 和egrep 来抑制输出（匹配的行），因为我猜你可能不需要它。

具有更完整模式的完整脚本：

#!/bin/bash

REPOS="${1}"
TXN="${2}"

SVNLOOK=/usr/bin/svnlook

${SVNLOOK} log -t "${TXN}" "${REPOS}" | head -n1 | egrep -q '^TaskID:[0-9][0-9]*- ' && exit 0

echo ""
echo "Your log message does not contain a TaskID(or bad format used)"
echo "The TaskID must be the first item on the first line of the log 
message."
echo ""
echo "Proper TaskID format--> TaskID:xxx- 'Your commit message'  "
exit 1

Answer 2

另外，我在同事的帮助下修改了我的脚本。

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

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

LOGMSG=$($SVNLOOK log -t "$TXN" "$REPOS")

# check if any comment has supplied by the commiter
if [ -z "$LOGMSG" ]; then
echo "Your commit was blocked because it have no comments." 1>&2
exit 1
fi

#check minimum size of text
if [ ${#LOGMSG} -lt 15 ]; then
echo "Your Commit was blocked because the comments does not meet minimum length requirements (15 letters)." 1>&2
exit 1
fi

# get TaskID by regex
TaskID=$(expr "$LOGMSG" : '\([#][0-9]\{1,9\}[:][" "]\)[A-Za-z0-9]*')

# Check if task id was found. 
if [ -z "$TaskID" ]; then

echo ""  1>&2
echo "No Task id found in log message \"$LOGMSG\"" 1>&2
echo ""  1>&2
echo "The TaskID must be the first item on the first line of the log message."  1>&2
echo ""  1>&2
echo "Proper TaskID format--> #123- 'Your commit message'  " 1>&2
exit 1
fi