我想 远程 更改Jenkins构建说明。我准备好了所有脚本，但有一个小问题：多行描述。

我在Jenkins中使用REST API和JSON下载旧描述：

old_description=$(curl -s --user "$USER:$PASSWORD" --data-urlencode "tree=description" \
    "$jenkins_url/job/$job_name/$build_number/api/json")

old_description=${old_description#*:\"} #Remove JSON garbage
old_description=${old_description%\"\}} #Remove JSON garbage

`curl命令退出：

<font color=blue><b>At first you don't succeed. Try again</b></font><br/>
\r\n<font color=gold><b>At first you don't succeed. Try again</b></font><br/>
\r\n<font color=green><b>At first you don't succeed. Try again</b></font>

（ 注意 ：我添加了换行符以使上面的内容更易于阅读。这被单行提取）。

这些\r\n是单独的行，所以我这样做：

old_description=$(sed 's/\\r\\n/\
/g' <<<$old_description)

变为$old_description：

font color=blue><b>At first you don't succeed. Try again</b></font><br/>
<font color=gold><b>At first you don't succeed. Try again</b></font><br/>
<font color=green><b>At first you don't succeed. Try again</b></font>

（ 注意 ：新行是值的一部分。这是三行描述。）

我的程序（取决于命令行参数）可以替换，附加或在构建之前添加新的描述：

if [ "$prepend_flag" -a -n "$old_description" ] #Prepend new description to old description
then
    new_description="$new_description<br/>
$old_description"
elif [ "$append_flag" -a -n "$old_description" ] #Append new description to old description
then
   new_description="$old_description<br/>
$new_description"
fi

现在，我将重做描述：

if curl -u $USER:$PASSWORD   --data-urlencode "description=$new_description" \
    --data-urlencode "Submit=Submit" \
    "$jenkins_url/job/$job_name/$build_number/submitDescription"
then
    echo "Description successfully changed on Build #$build_number in Jenkins job $job_name"
else
    echo "WARNING: Description was not set. Manually change the descripiton of the build"
    echo "         for Build #$build_number in Jenkins job $job_name"
fi

如果我是第一次添加新描述，则可以在詹金斯中得到：

<font color=blue><b>At first you don't succeed. Try again</b></font><br/>
<font color=gold><b>At first you don't succeed. Try again</b></font><br/>
<font color=green><b>At first you don't succeed. Try again</b></font><br/>
<font color=red><b>My new description</b></font><br/>

看起来不错。下次，它不起作用。我得到这个：

<font color=blue><b>At first you don't succeed. Try again</b></font><br/>\n<font color=gold><b>At first you don't succeed. Try again</b></font><br/>\n<font color=green><b>At first you don't succeed. Try again</b></font><br/>\n<font color=red><b>My new description</b></font><br/>
<font color=blue><b>My new new description</b></font>

请注意\n出现。

如何解决此问题？

我把整个程序放在了pastebin中。