Question

我想远程更改Jenkins构建说明。除了一个小问题外，我的脚本全部设置好并准备就绪：多行描述。

我在Jenkins中使用REST API和JSON来下载旧描述：

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命令拉出：

<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，使上面的内容更容易阅读。这是作为单行提取的）。

\r\n是单独的行，所以我这样做：

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

这会将$old_description更改为：

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，追加或添加新的描述到构建：

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

如果我是第一次提前或附加新说明，我会在Jenkins中得到这个：

<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。下一次，它不起作用。我明白了：

<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显示。

如何解决此问题？

我把整个程序放在pastebin。

Answer 1

我玩了很久了...

首先，而不是这样做：

    new_description="$new_description<br/>
$old_description"

要追加或添加该行，我使用了printf：

new_description="$(printf "$new_description\r\n$old_description")"

使用printf，我在说明行分隔符中添加了<CR><LF>而不只是<LF>。这样，我就没有<NL>和<CR><NL>的混乱，我不再依赖于操作系统对换行符的定义。

sed命令花了很长时间才弄明白。我尝试过各种各样的事情：

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

但是，似乎没有任何效果......我尝试了-E标志，它允许我使用扩展正则表达式，但它一直将\r\n解释为替换{ {1}} \\r\\n。

经过几个小时后，我终于尝试使用双引号而不是单引号：

literal 'rn

那很有效！您通常使用sed单引号来保护正则表达式不被插值。但是，单引号也将old_description=$(sed "s/\\r\\n/\r\n/g" <<<$old_description)的插值视为\r\n。用双引号改变它们解决了这个问题。

修改Jenkins描述构建

1 个答案: