add experimental go support

command.go

@@ -191,7 +191,7 @@ func (c *command) AtomicRun(args []string, async bool) error {
 	}
 
 	// init command
-	cmd, script, cleanupFunc, err := c.createCommand(argBuffer)
+	cmd, script, cleanupFunc, err := c.createCommand(argBuffer, args)
 	if err != nil {
 		return err
 	}
@@ -450,7 +450,7 @@ func (c *command) getLanguage() (*Language, error) {
 
 // create an exec.Cmd instance ready for execution
 // for the given argument buffer
-func (c *command) createCommand(argBuffer string) (cmd *exec.Cmd, script string, cleanupFunc func(), err error) {
+func (c *command) createCommand(argBuffer string, rawArgs []string) (cmd *exec.Cmd, script string, cleanupFunc func(), err error) {
 
 	var (
 		shellCommand []string
@@ -474,6 +474,11 @@ func (c *command) createCommand(argBuffer string) (cmd *exec.Cmd, script string,
 	// add interpreter
 	shellCommand = append(shellCommand, lang.Interpreter)
 
+	// add extra args if set
+	if len(lang.Args) > 0 {
+		shellCommand = append(shellCommand, lang.Args...)
+	}
+
 	if stopOnErr && lang.FlagStopOnError != "" {
 		shellCommand = append(shellCommand, lang.FlagStopOnError)
 	}
@@ -520,14 +525,21 @@ func (c *command) createCommand(argBuffer string) (cmd *exec.Cmd, script string,
 		}
 	} else {
 
-		contents, err := ioutil.ReadFile(c.path)
-		if err != nil {
-			Log.Error("failed to read script")
-			return nil, "", nil, err
-		}
+		if lang.Name == "go" {
+			// make an exception for golang: invoke the source file directly and pass raw args on the commandline
+			shellCommand = append(shellCommand, c.path)
+			shellCommand = append(shellCommand, rawArgs...)
+		} else {
 
-		script = lang.Bang + "\n" + globalFuncs + "\n" + argBuffer + "\n" + string(contents)
-		shellCommand = append(shellCommand, script)
+			contents, err := ioutil.ReadFile(c.path)
+			if err != nil {
+				Log.Error("failed to read script")
+				return nil, "", nil, err
+			}
+
+			script = lang.Bang + "\n" + globalFuncs + "\n" + argBuffer + "\n" + string(contents)
+			shellCommand = append(shellCommand, script)
+		}
 	}
 
 	Log.Debug("shellCommand: ", shellCommand)

commandData.go

@@ -279,6 +279,10 @@ func (d *commandData) init(commandsFile *CommandsFile, name string) error {
 		useBase:         d.UseBase,
 	}
 
+	if lang == "go" && d.Exec != "" {
+		return errors.New("when using Go, use of the exec field is not allowed. Please a create a file in the scripts folder instead")
+	}
+
 	// replace globals in outputs
 	for i, o := range cmd.outputs {
 		out, err := commandsFile.replaceGlobals(o)

language.go

@@ -37,6 +37,7 @@ var (
 			"sh":         shellLanguage(),
 			"zsh":        zshellLanguage(),
 			"perl":       perlLanguage(),
+			"go":         goLanguage(),
 		},
 	}
 
@@ -67,6 +68,9 @@ func (langStore *languageStore) getLang(name string) (*Language, error) {
 type Language struct {
 	Name string `yaml:"name"`
 
+	// extra arguments
+	Args []string `yaml:"args"`
+
 	// path to Interpreter
 	Interpreter string `yaml:"interpreter"`
 
@@ -234,3 +238,17 @@ func perlLanguage() *Language {
 		ErrLineNumberSymbol:  "line",
 	}
 }
+
+func goLanguage() *Language {
+	return &Language{
+		Name:                 "go",
+		Interpreter:          "go",
+		Args:                 []string{"run"},
+		Comment:              "//",
+		AssignmentOperator:   " = ",
+		VariableKeyword:      "var ",
+		FileExtension:        ".go",
+		CorrectErrLineNumber: true,
+		ErrLineNumberSymbol:  "line",
+	}
+}

zeus/data.yml

@@ -7,7 +7,7 @@
 #                          v0.8.10
 #
 
-buildNumber: 452
+buildNumber: 457
 deadline: ""
 milestones: []
 aliases: {}