Home Ask Login Register

Developers Planet

Your answer is one click away!

Greg February 2016

Email Extension Plugin - can't get BUILD_LOG_EXCERPT to work

No matter what I put in BUILD_LOG_EXCERPT, all I get is an email with an empty body, thus could use some assistance.

I have a java program that writes to console. Snippet of Jenkins console output looks like this:

[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Building project1 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] --- exec-maven-plugin:1.4.0:java (default-cli) @ project1 ---
Parameters provided: SG, 100, 1000
query: select COUNT(*) from table1 where col1 = ? and col2 = ? and col3 = ?
Rows in table: 5776
Threshold: 100
Rows returned above threshold, skipping dpan generation batch file.
[INFO] ------------------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.125 s
[INFO] Finished at: 2016-02-08T09:31:37-08:00
[INFO] Final Memory: 8M/245M

In the Jenkins job, I create a Post Build step, and put the following line in Default Content:

${BUILD_LOG_EXCERPT, start="\\b(Parameters)\\b", end="\\b(Threshold)\\b"}

When I trigger the job, all i get is an empty email. However if I add

${BUILD_LOG, maxLines=9999, escapeHtml=false}

then i get the full console output in the email. Any ideas? I am using version 2.40.3 of the plugin.


prudviraj February 2016

BUILD_LOG_EXCERPT in email-ext follows a very simple regex match using start and end. got it working by using two echo statements i.e one at the start from where i wanted the piece of console log and one at the end position of the log you wanted in email.

example :

In Build step :

echo Start
<your build commands>
echo End

In Default section of email-ext use the below line to get it working :

${BUILD_LOG_EXCERPT, start="^Start", end="^End"}

if your using a html email output you can use below line to align output in email

<pre>${BUILD_LOG_EXCERPT, start="^Start", end="^End"}</pre>

you can tweak and get it working , Hope it works for you as it did for me .

topher February 2016

Looks like your regex is failing to find any matches, so you aren't getting any lines of the log. This is because the BUILD_LOG_EXCERPT variable uses java.util.regex.Pattern.Matcher.matches() to match a regex - and this will only return True if the entire string matches (referenced in this SO question). The log parser is running line-by-line, so it's testing your entire line against your regex and failing (since there are characters after "Parameters").

If you're looking for a string that starts with Parameters but may have characters after it, you can match to


which will match "Parameters" and any arbitrary string after it.

Post Status

Asked in February 2016
Viewed 2,782 times
Voted 6
Answered 2 times


Leave an answer

Quote of the day: live life