Groovy String replacement with link

Question

I have multi-lines string from git log in variable and want to replace matched lines with hyper-links but keep some parts of the original string with Groovy.

Example:

commit 7a1825abc69f1b40fd8eb3b501813f21e09bfb54
Author: Filip Stefanov 
Date:   Mon Nov 21 11:05:08 2016 +0200

    TICKET-1

    Test change

    Change-Id: I7b4028e504de6c4a48fc34635d4b94ad038811a6

Should look like:

commit 7a1825abc69f1b40fd8eb3b501813f21e09bfb54
Author: Filip Stefanov 
Date:   Mon Nov 21 11:05:08 2016 +0200

    <a href=http://localhost:8080/browse/TICKET-1>TICKET-1</a>

    Test change

    <a href=http://localhost:8081/#/q/I7b4028e504de6c4a48fc34635d4b94ad038811a6,n,z>Change-Id: I7b4028e504de6c4a48fc34635d4b94ad038811a6</a>

Im pretty bad in Groovy regex dont know how to use grouping or closures so far so good:

mystring.replaceAll(/TICKET-/, "http://localhost:8080/browse/TICKET-")

NOTE: TICKET {int} and Change-Id {hash} are variables

Try something like this: mystring.replaceAll(/(TICKET-.)/, "url\1"). \1 is the group that you matched. — Mohammad Yusuf, Dec 01 '16 at 16:53
Try `.replaceAll(/(?m)^([\ \t]+)(TICKET-\d+)(\R{2}.*\R{2}\s+)(Change-Id:\s+)(\S+)/, "$1$2$3$4$4$5")`, here is the [regex demo](https://regex101.com/r/9vKjYE/1). — Wiktor Stribiżew, Dec 01 '16 at 16:59

score 1 · Accepted Answer · answered Dec 01 '16 at 17:04

1

mystring.replaceAll(/(TICKET-\d++)/, '<a href="http://localhost:8080/browse/$1">$1</a>')
        .replaceAll(/Change-Id: (I\p{XDigit}++)/, '<a href="http://localhost:8081/#/q/$1,n,z">Change-Id: $1</a>')

Of course you have to replace the dynamic parts accordingly. Currently it is at least one digit after the TICKET- and an I and then at least one hex digit after the Change-ID:.

answered Dec 01 '16 at 17:04

Vampire

35,631
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Perfect ! As i know Change IDs are always prefixed with I in Gerrit. What is the meaning of \p ? – Filip Stefanov Dec 01 '16 at 20:02
It is a character class. Look at https://docs.oracle.com/javase/8/docs/api/java/util/regex/Pattern.html for valid ones – Vampire Dec 01 '16 at 20:19

Groovy String replacement with link

1 Answers1