Support go build tags (issue #149)

run.go

@@ -26,7 +26,7 @@ import (
 )
 
 var cmdRun = &Command{
-	UsageLine: "run [appname] [watchall] [-main=*.go] [-downdoc=true]  [-gendoc=true]  [-e=Godeps -e=folderToExclude]",
+	UsageLine: "run [appname] [watchall] [-main=*.go] [-downdoc=true]  [-gendoc=true]  [-e=Godeps -e=folderToExclude]  [-tags=goBuildTags]",
 	Short:     "run the app and start a Web server for development",
 	Long: `
 Run command will supervise the file system of the beego project using inotify,
@@ -43,12 +43,16 @@ var gendoc docValue
 // The flags list of the paths excluded from watching
 var excludedPaths strFlags
 
+// Pass through to -tags arg of "go build"
+var buildTags string
+
 func init() {
 	cmdRun.Run = runApp
 	cmdRun.Flag.Var(&mainFiles, "main", "specify main go files")
 	cmdRun.Flag.Var(&gendoc, "gendoc", "auto generate the docs")
 	cmdRun.Flag.Var(&downdoc, "downdoc", "auto download swagger file when not exist")
 	cmdRun.Flag.Var(&excludedPaths, "e", "Excluded paths[].")
+	cmdRun.Flag.StringVar(&buildTags, "tags", "", "Build tags (https://golang.org/pkg/go/build/)")
 }
 
 var appname string

watch.go

@@ -170,6 +170,9 @@ func Autobuild(files []string, isgenerate bool) {
 
 		args := []string{"build"}
 		args = append(args, "-o", appName)
+		if buildTags != "" {
+			args = append(args, "-tags", buildTags)
+		}
 		args = append(args, files...)
 
 		bcmd := exec.Command(cmdName, args...)