Debian packaging script with FPM for Maven

package_deb.sh

#!/usr/bin/env bash

echo
echo "FPM Packaging Script for Debian"
echo
echo "Environment Variables to script:"
echo "--------------------------------"
printenv | grep '^PKG'
echo "--------------------------------"

ITERATION=0

if [[ "${PKG_VERSION}" =~ .*-SNAPSHOT ]]; then
	echo "Packaging a snapshot version"
	ITERATION=$(git log --format="%h" -n 1).$(date +%s)
else
	echo "Not packaging a snapshot version"
fi

WORK_DIR="$(mktemp -d /tmp/quattor.fpm.XXXXXXXXXX)"
echo "Working directory is '$WORK_DIR'"

# Perl modules should be in /usr/share/perl5 to comply with Debian Policy 2.3
PERL_DIR=$WORK_DIR/usr/share/perl5
mkdir -p $PERL_DIR
cp -R lib/perl/* $PERL_DIR

# Generate provides from Perl modules (ignore versions for now)
PROVIDES_PATTERN="s#$PERL_DIR\(\S\+\)\.pm#--provides lib\L\1-perl#g"
provides="$(find $PERL_DIR -type f -name \*.pm | sed "$PROVIDES_PATTERN" | sed 's#/#-#g')"

# Generate dependencies from Perl modules (ignore versions for now)
DEPENDS_PATTERN="s#^'\(\S\+\)'\s*=>\s*'\(\S\+\)',#--depends lib\L\1-perl#g"
depends="$(find $WORK_DIR/usr/share/perl5/ -type f -name \*.pm | xargs scandeps -R 2> /dev/null | sed "$DEPENDS_PATTERN" | sed 's#::#-#g')"

# Executables and TT Files
cp -R sbin share $WORK_DIR/usr

# Documentation and reference material
mkdir -p $WORK_DIR/usr/share/doc/
cp -R pan $WORK_DIR/usr/share/doc/ # Reference copy of Pan templates
cp -R doc/man $WORK_DIR/usr/share/ # Man pages

# Re-compress manpages to comply with Debian Policy 12.1
gunzip $WORK_DIR/usr/share/man/man8/*.gz
gzip -9 $WORK_DIR/usr/share/man/man8/*

# Generate a slightly-fake debian style changelog from git log (Debian Policy 4.4)
# Replace UUID based email addresses generated by git-svn
LOG_PATTERN="${PKG_NAME} (${PKG_VERSION}-%h.%at) stable; urgency=medium%n%n%w(76,2,4)* %B%n%w(0,0,0) -- %aN <%aE>  %aD%n%n"
EMAIL_PATTERN='s!@[[:xdigit:]]\{8\}-[[:xdigit:]]\{4\}-[[:xdigit:]]\{4\}-[[:xdigit:]]\{4\}-[[:xdigit:]]\{12\}!@users.noreply.github.com!g'
git log --grep '^[^\[]' --pretty="$LOG_PATTERN" ../. | sed "$EMAIL_PATTERN" > changelog.Debian

# Build package
echo "Calling FPM..."
fpm \
-s dir \
-t deb \
-C "$WORK_DIR" \
$provides \
$depends \
--category admin \
--iteration ${ITERATION} \
--vendor "quattor.org" \
-m "Quattor Discuss <quattor-discuss@lists.sourceforge.net>" \
--url "https://www.quattor.com" \
--description "${PKG_DESCRIPTION}" \
--architecture all \
--name ${PKG_NAME} \
--version ${PKG_VERSION} \
--license "Apache-2 and EUDatagrid" \
--deb-changelog changelog.Debian \
usr

# Clean up temporary working directory
rm -rf "$WORK_DIR"

echo "Packaging with FPM Completed"
echo

pom.xml

<plugin>
    <groupId>org.codehaus.mojo</groupId>
    <artifactId>exec-maven-plugin</artifactId>
    <executions>
        <execution>
            <id>fpm</id>
            <phase>package</phase>
            <goals>
                <goal>exec</goal>
            </goals>
        </execution>
    </executions>
    <configuration>
        <executable>../package.sh</executable>
        <workingDirectory>target</workingDirectory>
        <environmentVariables>
            <PKG_VERSION>${project.version}</PKG_VERSION>
            <PKG_NAME>${project.artifactId}</PKG_NAME>
            <PKG_DESCRIPTION>${project.name}</PKG_DESCRIPTION>
        </environmentVariables>
    </configuration>
</plugin>