// configurePath sends the client's PATH to the service.
func configurePath(g *libkb.GlobalContext, cl *libcmdline.CommandLine) error {
if cl.IsService() {
// this only runs on the client
return nil
}
return client.SendPath(g)
}
// AutoFork? Standalone? ClientServer? Brew service? This function deals with the
// various run configurations that we can run in.
func configureProcesses(g *libkb.GlobalContext, cl *libcmdline.CommandLine, cmd *libcmdline.Command) (err error) {
g.Log.Debug("+ configureProcesses")
defer func() {
g.Log.Debug("- configureProcesses -> %v", err)
}()
// On Linux, the service configures its own autostart file. Otherwise, no
// need to configure if we're a service.
if cl.IsService() {
g.Log.Debug("| in configureProcesses, is service")
if runtime.GOOS == "linux" {
g.Log.Debug("| calling AutoInstall")
_, err := install.AutoInstall(g, "", false)
if err != nil {
return err
}
}
return nil
}
// Start the server on the other end, possibly.
// There are two cases in which we do this: (1) we want
// a local loopback server in standalone mode; (2) we
// need to "autofork" it. Do at most one of these
// operations.
if g.Env.GetStandalone() {
if cl.IsNoStandalone() {
err = fmt.Errorf("Can't run command in standalone mode")
return err
}
err := service.NewService(g, false /* isDaemon */).StartLoopbackServer()
if err != nil {
if pflerr, ok := err.(libkb.PIDFileLockError); ok {
err = fmt.Errorf("Can't run in standalone mode with a service running (see %q)",
pflerr.Filename)
return err
}
}
return err
}
// After this point, we need to provide a remote logging story if necessary
// If this command specifically asks not to be forked, then we are done in this
// function. This sort of thing is true for the `ctl` commands and also the `version`
// command.
fc := cl.GetForkCmd()
if fc == libcmdline.NoFork {
return configureLogging(g, cl)
}
// If this command warrants an autofork, do it now.
var newProc bool
if fc == libcmdline.ForceFork || g.Env.GetAutoFork() {
newProc, err = client.AutoForkServer(g, cl)
if err != nil {
return err
}
} else if libkb.IsBrewBuild {
// If we're running in Brew mode, we might need to install ourselves as a persistent
// service for future invocations of the command.
newProc, err = install.AutoInstall(g, "", false)
if err != nil {
return err
}
}
g.Log.Debug("| After forks; newProc=%v", newProc)
if err = configureLogging(g, cl); err != nil {
return err
}
// If we have created a new proc, then there's no need to keep going to the
// final step, which is to check for a version clashes.
if newProc {
return nil
}
// Finally, we'll restart the service if we see that it's out of date.
if err = client.FixVersionClash(g, cl); err != nil {
return err
}
return nil
}
// AutoFork? Standalone? ClientServer? Brew service? This function deals with the
// various run configurations that we can run in.
func configureProcesses(g *libkb.GlobalContext, cl *libcmdline.CommandLine, cmd *libcmdline.Command) (err error) {
g.Log.Debug("+ configureProcesses")
defer func() {
g.Log.Debug("- configureProcesses -> %v", err)
}()
// On Linux, the service configures its own autostart file. Otherwise, no
// need to configure if we're a service.
if cl.IsService() {
g.Log.Debug("| in configureProcesses, is service")
if runtime.GOOS == "linux" {
g.Log.Debug("| calling AutoInstall")
_, err := install.AutoInstall(g, "", false, g.Log)
if err != nil {
return err
}
}
return nil
}
// Start the server on the other end, possibly.
// There are two cases in which we do this: (1) we want
// a local loopback server in standalone mode; (2) we
// need to "autofork" it. Do at most one of these
// operations.
if g.Env.GetStandalone() {
if cl.IsNoStandalone() {
err = fmt.Errorf("Can't run command in standalone mode")
return err
}
err := service.NewService(g, false /* isDaemon */).StartLoopbackServer()
if err != nil {
if pflerr, ok := err.(libkb.PIDFileLockError); ok {
err = fmt.Errorf("Can't run in standalone mode with a service running (see %q)",
pflerr.Filename)
return err
}
}
return err
}
// After this point, we need to provide a remote logging story if necessary
// If this command specifically asks not to be forked, then we are done in this
// function. This sort of thing is true for the `ctl` commands and also the `version`
// command.
fc := cl.GetForkCmd()
if fc == libcmdline.NoFork {
return configureLogging(g, cl)
}
var newProc bool
if libkb.IsBrewBuild {
// If we're running in Brew mode, we might need to install ourselves as a persistent
// service for future invocations of the command.
newProc, err = install.AutoInstall(g, "", false, g.Log)
if err != nil {
return err
}
} else {
// If this command warrants an autofork, do it now.
if fc == libcmdline.ForceFork || g.Env.GetAutoFork() {
newProc, err = client.AutoForkServer(g, cl)
if err != nil {
return err
}
}
}
// Restart the service if we see that it's out of date. It's important to do this
// before we make any RPCs to the service --- for instance, before the logging
// calls below. See the v1.0.8 update fiasco for more details. Also, only need
// to do this if we didn't just start a new process.
if !newProc {
if err = client.FixVersionClash(g, cl); err != nil {
return err
}
}
g.Log.Debug("| After forks; newProc=%v", newProc)
if err = configureLogging(g, cl); err != nil {
return err
}
// This sends the client's PATH to the service so the service can update
// its PATH if necessary. This is called after FixVersionClash(), which
// happens above in configureProcesses().
if err = configurePath(g, cl); err != nil {
// Further note -- don't die here. It could be we're calling this method
// against an earlier version of the service that doesn't support it.
// It's not critical that it succeed, so continue on.
g.Log.Debug("Configure path failed: %v", err)
}
return nil
}