snapd-git: initial packaging of -git package, based on upstream arch packaging

Arch packaging updates as compared to repo version:

  - convert the package to *-git (i.e. built from VCS)
  - update conflicts to fully replace community repo snapd package
  - update build to properly set up CGO_CFLAGS, CGO_CPPFLAGS, CGO_CXXFLAGS,
    CGO_LDFLAGS to include settings configured in /etc/makepkg.conf
  - use `go build` rather than `go install` in build step to prevent go from
    trying to install *.a in system locations
  - enable verbose build (go build -x -v)
  - refactor package()
    - do not hand install support files (systemd units, DBus service)
    - cleanup unused ubuntu core files
  - snapd environment file is now at /etc/default/snapd
  - package snap-exec binary
  - symlink /var/lib/snapd/snap to /snap so that --classic confinement snaps
    work

Notes:
  `run-checks --unit` errors are currently masked until the upstream figures out
  integration of Arch into their CI workflow.

Signed-off-by: Maciek Borzecki <maciek.borzecki@gmail.com>

1 files changed, 43 insertions, 0 deletions

diff --git a/snapd.install b/snapd.install
new file mode 100644
index 000000000000..fd43f4f25caf
--- /dev/null
+++ b/snapd.install
@@ -0,0 +1,43 @@
+## arg 1:  the new package version
+post_install() {
+  echo
+  echo 'To use snapd start/enable the snapd.socket'
+  echo
+  echo 'If you want your apps to be automatically updated'
+  echo 'from the store start/enable the snapd.refresh.timer'
+  echo
+  echo 'NOTE: Desktop entries show up after logging in again'
+  echo ' or rebooting after snapd installation'
+  echo
+  echo 'For more informations, see https://wiki.archlinux.org/index.php/Snapd'
+}
+
+_stop_services() {
+  /usr/bin/systemctl stop \
+                     snapd.service \
+                     snapd.socket \
+                     snapd.refresh.timer \
+                     snapd.refresh.service > /dev/null 2>&1
+}
+
+pre_remove() {
+  _stop_services
+}
+
+pre_upgrade() {
+  _stop_services
+}
+
+post_upgrade() {
+  /usr/bin/systemctl daemon-reload > /dev/null 2>&1 || :
+
+  # restore the services after an upgrade
+  if /usr/bin/systemctl -q is-enabled snapd.socket > /dev/null 2>&1; then
+    /usr/bin/systemctl start snapd.socket > /dev/null 2>&1 || :
+  fi
+  if systemctl -q is-enabled snapd.refresh.timer > /dev/null 2>&1; then
+    systemctl start snapd.refresh.timer > /dev/null 2>&1 || :
+  fi
+}
+
+# vim:set ts=2 sw=2 et: