add linux / windows build files

Signed-off-by: Jeff Carr <jcarr@wit.com>

linux.go

@@ -0,0 +1,31 @@
+// +build linux,go1.7
+
+// put stuff in here that you only want compiled under linux
+
+package shell
+
+import "log"
+import "os"
+import "os/signal"
+import "syscall"
+
+// import "runtime"
+// import "time"
+// import "reflect"
+
+// import "git.wit.com/wit/shell"
+// import "github.com/davecgh/go-spew/spew"
+
+import "github.com/wercker/journalhook"
+
+var sigChan	chan os.Signal
+
+func handleSignal(err interface{}, ret int) {
+	log.Println("handleSignal() only should be compiled on linux")
+	sigChan = make(chan os.Signal, 3)
+	signal.Notify(sigChan, syscall.SIGUSR1)
+}
+
+func UseJournalctl() {
+	journalhook.Enable()
+}

shell.go

@@ -15,8 +15,6 @@ import "github.com/svent/go-nbreader"
 
 // import "log"
 import log "github.com/sirupsen/logrus"
-// TODO this journalhook to be cross platform
-// import "github.com/wercker/journalhook"
 
 // TODO: look at https://github.com/go-cmd/cmd/issues/20
 // use go-cmd instead here?
@@ -66,12 +64,6 @@ func Script(cmds string) int {
 	return 0
 }
 
-/*
-func UseJournalctl() {
-	journalhook.Enable()
-}
-*/
-
 func SpewOn() {
 	spewOn = true
 }

windows.go

@@ -0,0 +1,18 @@
+// +build windows
+
+// put stuff in here that you only want compiled under windows
+
+package shell
+
+import "log"
+
+// import "git.wit.com/wit/shell"
+// import "github.com/davecgh/go-spew/spew"
+
+func handleSignal(err interface{}, ret int) {
+	log.Println("handleSignal() windows doesn't do signals")
+}
+
+func UseJournalctl() {
+	log.Println("journalctl doesn't exist on windows")
+}