How to get text between two texts with Regex on BUILD_LOG

I'm trying to get the version of the app from the jenkins log to send it to email.

The log (part of it) is:

[INFO] Image 03127cdb479b: Layer already exists
[INFO] Image 9c742cd6c7a5: Layer already exists
[INFO] Image 1f8a8b50f407: Pushing
[INFO] Image 1f8a8b50f407: Pushed
[INFO] 4.2.3-202211071000: digest: sha256:[large_number] size: 2415
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------

I want only the 4.2.3-202211071000 part, so I'm doing:

${BUILD_LOG_REGEX, regex="(?<=\[INFO])(.*)(?=: digest)", maxMatches=1, showTruncatedLines=false, substText="$1"}

but this is returning the entire line:

[INFO] 4.2.3-202211071000: digest: sha256:[large_number] size: 2415

not only the text between "[INFO] " and ": digest". How can I do that?

CodePudding user response：

Try this pattern: (?<=\[INFO\] )[-\d\.] (?=:)

See here for a breakdown of the RegEx

CodePudding user response：

Check the following pattern.

regex="(\\[INFO\\] (.*): digest)"