func generateWrappers(s *snap.Info) error {
// add the CLI apps from the snap.yaml
if err := wrappers.AddSnapBinaries(s); err != nil {
return err
}
// add the daemons from the snap.yaml
if err := wrappers.AddSnapServices(s, &progress.NullProgress{}); err != nil {
return err
}
// add the desktop files
if err := wrappers.AddSnapDesktopFiles(s); err != nil {
return err
}
return nil
}
// patch5:
// - regenerate generated .service files
func patch5(st *state.State) error {
log := log{}
snapStates, err := snapstate.All(st)
if err != nil {
return err
}
for snapName, snapState := range snapStates {
if !snapState.Active {
continue
}
info, err := snapState.CurrentInfo()
if err != nil {
return err
}
if len(info.Apps) == 0 {
logger.Debugf("patch 5: skipping for %q: no apps", snapName)
continue
}
err = wrappers.StopSnapServices(info, log)
if err != nil {
return err
}
err = wrappers.AddSnapServices(info, log)
if err != nil {
return err
}
err = wrappers.StartSnapServices(info, log)
if err != nil {
return err
}
logger.Noticef("patch 5: %q updated", snapName)
}
return nil
}
func (s *servicesTestSuite) TestAddSnapServicesAndRemove(c *C) {
var sysdLog [][]string
systemd.SystemctlCmd = func(cmd ...string) ([]byte, error) {
sysdLog = append(sysdLog, cmd)
return []byte("ActiveState=inactive\n"), nil
}
info := snaptest.MockSnap(c, packageHello, contentsHello, &snap.SideInfo{Revision: snap.R(12)})
err := wrappers.AddSnapServices(info, nil)
c.Assert(err, IsNil)
svcFile := filepath.Join(s.tempdir, "/etc/systemd/system/snap.hello-snap.svc1.service")
content, err := ioutil.ReadFile(svcFile)
c.Assert(err, IsNil)
verbs := []string{"Start", "Stop", "StopPost"}
cmds := []string{"", " --command=stop", " --command=post-stop"}
for i := range verbs {
expected := fmt.Sprintf("Exec%s=/usr/bin/snap run%s hello-snap.svc1", verbs[i], cmds[i])
c.Check(string(content), Matches, "(?ms).*^"+regexp.QuoteMeta(expected)) // check.v1 adds ^ and $ around the regexp provided
}
sysdLog = nil
err = wrappers.StopSnapServices(info, &progress.NullProgress{})
c.Assert(err, IsNil)
c.Assert(sysdLog, HasLen, 2)
c.Check(sysdLog, DeepEquals, [][]string{
{"stop", filepath.Base(svcFile)},
{"show", "--property=ActiveState", "snap.hello-snap.svc1.service"},
})
sysdLog = nil
err = wrappers.RemoveSnapServices(info, &progress.NullProgress{})
c.Assert(err, IsNil)
c.Check(osutil.FileExists(svcFile), Equals, false)
c.Assert(sysdLog, HasLen, 2)
c.Check(sysdLog[0], DeepEquals, []string{"--root", dirs.GlobalRootDir, "disable", filepath.Base(svcFile)})
c.Check(sysdLog[1], DeepEquals, []string{"daemon-reload"})
}
func (s *servicesTestSuite) TestRemoveSnapPackageFallbackToKill(c *C) {
restore := wrappers.MockKillWait(200 * time.Millisecond)
defer restore()
var sysdLog [][]string
systemd.SystemctlCmd = func(cmd ...string) ([]byte, error) {
// filter out the "systemctl show" that
// StopSnapServicesGenerates
if cmd[0] != "show" {
sysdLog = append(sysdLog, cmd)
}
return []byte("ActiveState=active\n"), nil
}
info := snaptest.MockSnap(c, `name: wat
version: 42
apps:
wat:
command: wat
stop-timeout: 250ms
daemon: forking
`, "", &snap.SideInfo{Revision: snap.R(11)})
err := wrappers.AddSnapServices(info, nil)
c.Assert(err, IsNil)
sysdLog = nil
svcFName := "snap.wat.wat.service"
err = wrappers.StopSnapServices(info, &progress.NullProgress{})
c.Assert(err, IsNil)
c.Check(sysdLog, DeepEquals, [][]string{
{"stop", svcFName},
// check kill invocations
{"kill", svcFName, "-s", "TERM"},
{"kill", svcFName, "-s", "KILL"},
})
}