Changelog with GIT and JIRA: Creating JIRA filter URL based on git commits between two revisions with bash

git-jira-changelog.sh

#!/bin/bash

PROJECTKEYS="PROJ1|PROJ2"
JIRABASEURL="http://jira.example.com/"

# Put here your tag names, branches or just revision hashes
FROMREV="release-1.0"
TOREV="origin/master"

# Unfortunately I didn't manage to get the variable $PORJECTKEYS replaced within gawk's gensub()
git log --pretty=oneline $FROMREV..$TOREV \
    | egrep "($PROJECTKEYS)-[[:digit:]]" \
    | gawk -v projects=$PROJECTKEYS '{print gensub(/.*(PROJ1|PROJ2)-([0-9]{1,5}).*/, "\\1-\\2", "g")}' | sort | uniq | tr '\n' ',' \
    | awk -v baseurl="$JIRABASEURL" '{print baseurl "/issues/?jql=key%20in%20(" $0 ")"}' | sed 's/,)/)/' \
    | xargs xdg-open