snapcraft.yaml using ant options and SNAPCRAFT_PART_INSTALL envar

snapcraft.yaml

name: cassandra
version: 3.7
summary: Cassandra distributed database
description: The Apache Cassandra database
confinement: strict
apps:
    cassandra:
        command: wrapper-cassandra
        daemon: forking
        # mount-observe is needed for checking available space in the data
        # directories (java.io.File.getTotalSpace). It must be manually
        # connected with:
        # `snap connect cassandra:mount-observe ubuntu-core:mount-observe`
        plugs: [network, network-bind, mount-observe]
        # The setpriority syscall is also needed, but currently unavailable:
        # https://bugs.launchpad.net/snappy/+bug/1577520
    nodetool:
        command: wrapper-nodetool
        plugs: [network]

    # Helpers. These will go away when snapd provides a config interface.
    # Deployment tools can use these to avoid hardcoding paths.
    config-get:
        # cassandra.config-get: fetch a configuration file from CASSANDRA_CONF.
        command: config-get
    config-set:
        # cassandra.config-set: place a configuration file in CASSANDRA_CONF.
        command: config-set
    env-get:
        # cassandra.env-get: print the value of an environment variable,
        # e.g. CASSANDRA_DATA.
        command: env-get
parts:
    cassandra:
        plugin: ant
        ant-properties:
            dist.dir: $SNAPCRAFT_PART_INSTALL
        ant-build-targets:
            - artifacts
        source: https://github.com/apache/cassandra
        source-tag: cassandra-3.7
        source-type: git
        stage-packages:
            # Copy some packages into the stage directory to steal their
            # pre-built binaries.
            - mawk
            - grep
            # For free(1)
            - procps
        organize:
            # Rename directories into their expected locations. Analogous to
            # Debian's .install files.
            conf: etc/cassandra
            bin/cassandra: usr/sbin/cassandra
            lib: usr/share/cassandra/lib
            # Rename mawk to awk instead of shipping a symlink.
            usr/bin/mawk: usr/bin/awk
        snap:
            # Files from the stage directory to include in the snap.
            - bin/nodetool
            - etc/cassandra
            - usr/sbin/cassandra
            - usr/share/cassandra/lib/*.jar
            - usr/lib/jvm
            # awk, grep, and free are needed by cassandra-env.sh
            - usr/bin/awk
            - bin/grep
            - usr/bin/free
    glue:
        plugin: dump
        source: .
        organize:
            # Snaps are confined within:
            # - /snap/$name/$revision (RO mounted squashfs)
            # - /var/snap/$name/$revision (RW area for persisting data,
            #                              copied between upgrades)
            #
            # The following wrapper scripts set some environment variables to
            # point Cassandra at the right locations for jars, the data
            # directory, logs, etc.
            wrapper-cassandra: bin/wrapper-cassandra
            wrapper-nodetool: bin/wrapper-nodetool
            # Helpers. Again, these will go away when snapd provides a config
            # interface.
            config-get: bin/config-get
            config-set: bin/config-set
            env-get: bin/env-get
            common: bin/common
        snap:
            - bin/*

# vim: set ai et sts=4 tabstop=4 sw=4: