snapcraft.yaml

name: snapd
# TODO: enable this when the store is ready
# type: snapd
summary: Daemon and tooling that enable snap packages
description: |
  Install, configure, refresh and remove snap packages. Snaps are
  'universal' packages that work across many different Linux systems,
  enabling secure distribution of the latest apps and utilities for
  cloud, servers, desktops and the internet of things.

  Start with 'snap list' to see installed snaps.
adopt-info: snapd
# the base is only needed here for snapcraft to check the ELF sections of
# binaries inside the snap, which is an unnecessary check for snapcraft itself
base: core
grade: stable
license: GPL-3.0

# Note that this snap is unusual in that it has no "apps" section.
#
# It is started via re-exec on classic systems and via special
# handling in the core18 snap on Ubuntu Core Systems.
#
# Because snapd itself manages snaps it must currently run totally
# unconfined (even devmode is not enough).
#
# See the comments from jdstrand in
# https://forum.snapcraft.io/t/5547/10
parts:
  snapd:
    plugin: nil
    source: .
    build-snaps: [go/1.10/stable]
    override-pull: |
      snapcraftctl pull
      # install build dependencies
      export DEBIAN_FRONTEND=noninteractive
      export DEBCONF_NONINTERACTIVE_SEEN=true
      sudo apt-get build-dep -y ./
      ./get-deps.sh --skip-unused-check
      # set version after installing dependencies so we have all the tools here
      snapcraftctl set-version $(./mkversion.sh --output-only)
    override-build: |
      # unset the LD_FLAGS and LD_LIBRARY_PATH vars that snapcraft sets for us
      # as those will point to the $SNAPCRAFT_STAGE which on re-builds will 
      # contain things like libc and friends that confuse the debian package
      # build system
      # TODO: should we unset $PATH to not include $SNAPCRAFT_STAGE too?
      unset LD_FLAGS
      unset LD_LIBRARY_PATH
      # if we are root, disable tests
      if [ "$(id -u)" = "0" ]; then
        DEB_BUILD_OPTIONS=nocheck
        export DEB_BUILD_OPTIONS
      fi
      # run the real build (but just build the binary package, and don't
      # bother compressing it too much)
      dpkg-buildpackage -b -Zgzip -zfast
      dpkg-deb -x $(pwd)/../snapd_*.deb $SNAPCRAFT_PART_INSTALL

  # xdelta is used to enable delta downloads (even if the host does not have it)
  xdelta3:
    plugin: nil
    stage-packages:
      - xdelta3
    stage:
      - usr/bin/*
      - usr/lib/*
      - lib/*
  # squashfs-tools are used by `snap pack`
  squashfs-tools:
    plugin: nil
    stage-packages:
      - squashfs-tools
    stage:
      - usr/bin/*
      - usr/lib/*
      - lib/*
  # liblzma5 is part of core but the snapd snap needs to run even without core
  liblzma5:
    plugin: nil
    stage-packages:
      - liblzma5
    stage:
      - lib/*
  # libc6 is part of core but we need it in the snapd snap for
  # CommandFromSystemSnap
  libc6:
    plugin: nil
    stage-packages:
      - libc6
      - libc-bin
    stage:
      - lib/*
      - usr/lib/*
      - lib64/*
      - etc/ld.so.conf
      - etc/ld.so.conf.d/*
    override-stage: |
      snapcraftctl stage
      # fix symlinks of ld.so to be relative
      if [ "$(readlink -f lib64/ld-linux-x86-64.so.2)" = "/lib/x86_64-linux-gnu/ld-2.23.so" ]; then
          ln -f -s ../lib/x86_64-linux-gnu/ld-2.23.so lib64/ld-linux-x86-64.so.2
      fi
      if [ "$(readlink -f lib64/ld64.so.2)" = "/lib/powerpc64le-linux-gnu/ld-2.23.so" ]; then
          ln -f -s ../lib/powerpc64le-linux-gnu/ld-2.23.so lib64/ld64.so.2
      fi
  # the version in Ubuntu 16.04 (cache v6)
  fontconfig-xenial:
    plugin: nil
    source: https://github.com/snapcore/fc-cache-static-builder.git
    override-build: |
      ./build-from-security.py xenial
      mkdir -p $SNAPCRAFT_PART_INSTALL/bin
      cp -a fc-cache-xenial $SNAPCRAFT_PART_INSTALL/bin/fc-cache-v6
    prime:
      - bin/fc-cache-v6
  # the version in Ubuntu 18.04 (cache v7)
  fontconfig-bionic:
    plugin: nil
    source: https://github.com/snapcore/fc-cache-static-builder.git
    override-build: |
      ./build-from-security.py bionic
      mkdir -p $SNAPCRAFT_PART_INSTALL/bin
      cp -a fc-cache-bionic $SNAPCRAFT_PART_INSTALL/bin/fc-cache-v7
    prime:
      - bin/fc-cache-v7