all: changes the line number arguments for "local" and "play" command

Previously, the "local" and "play" command only accept two kind of
arguments: one argument for executing single line or two arguments for
executing line range.
There are no options to executing multiple single line, multiple line
range, or combination of them.

This changes make the both commands accept list of lines or line range
where each separated by comma.
For example, to execute multiple, different single lines

   awwan local 4,8,12

To execute multiple line range,

   awwan local 4-8,12-16

Or to execute multiple lines and line range,

   awwan local 4,8,10-12

1 files changed, 26 insertions, 29 deletions

diff --git a/awwan.go b/awwan.go
index 1f60222..24294f1 100644
--- a/awwan.go
+++ b/awwan.go
@@ -133,12 +133,16 @@ func (aww *Awwan) Build() (err error) {
 
 // Local execute the script in the local machine using shell.
 func (aww *Awwan) Local(req *Request) (err error) {
+	if len(req.lineRange.list) == 0 {
+		// No position to be executed.
+		return nil
+	}
+
 	var (
 		logp = "Local"
 
 		ses        *Session
 		sessionDir string
-		maxLines   int
 	)
 
 	req.scriptPath = filepath.Clean(req.Script)
@@ -168,15 +172,6 @@ func (aww *Awwan) Local(req *Request) (err error) {
 		return fmt.Errorf("%s: %w", logp, err)
 	}
 
-	maxLines = len(req.script.stmts)
-	if req.BeginAt >= maxLines {
-		return fmt.Errorf("%s: start index %d out of range %d", logp,
-			req.BeginAt, maxLines)
-	}
-	if req.EndAt > maxLines {
-		req.EndAt = maxLines - 1
-	}
-
 	// Create temporary directory.
 	err = os.MkdirAll(ses.tmpDir, 0700)
 	if err != nil {
@@ -189,18 +184,26 @@ func (aww *Awwan) Local(req *Request) (err error) {
 		}
 	}()
 
-	err = ses.executeRequires(req)
-	if err != nil {
-		return fmt.Errorf("%s:%w", logp, err)
-	}
+	var pos linePosition
+	for _, pos = range req.lineRange.list {
+		err = ses.executeRequires(req, pos)
+		if err != nil {
+			return fmt.Errorf("%s:%w", logp, err)
+		}
 
-	ses.executeScriptOnLocal(req)
+		ses.executeScriptOnLocal(req, pos)
+	}
 
 	return nil
 }
 
 // Play execute the script in the remote machine using SSH.
 func (aww *Awwan) Play(req *Request) (err error) {
+	if len(req.lineRange.list) == 0 {
+		// No position to be executed.
+		return nil
+	}
+
 	var (
 		logp = "Play"
 
@@ -209,7 +212,6 @@ func (aww *Awwan) Play(req *Request) (err error) {
 		sshSection *config.Section
 		mkdirStmt  string
 		rmdirStmt  string
-		maxLines   int
 	)
 
 	req.scriptPath = filepath.Clean(req.Script)
@@ -256,14 +258,6 @@ func (aww *Awwan) Play(req *Request) (err error) {
 		return fmt.Errorf("%s: %w", logp, err)
 	}
 
-	maxLines = len(req.script.stmts)
-	if req.BeginAt >= maxLines {
-		return fmt.Errorf("%s: start index %d out of range %d", logp, req.BeginAt, maxLines)
-	}
-	if req.EndAt > maxLines {
-		req.EndAt = maxLines - 1
-	}
-
 	// Create temporary directory ...
 	mkdirStmt = fmt.Sprintf("mkdir %s", ses.tmpDir)
 
@@ -279,12 +273,15 @@ func (aww *Awwan) Play(req *Request) (err error) {
 		}
 	}()
 
-	err = ses.executeRequires(req)
-	if err != nil {
-		return fmt.Errorf("%s: %w", logp, err)
-	}
+	var pos linePosition
+	for _, pos = range req.lineRange.list {
+		err = ses.executeRequires(req, pos)
+		if err != nil {
+			return fmt.Errorf("%s: %w", logp, err)
+		}
 
-	ses.executeScriptOnRemote(req)
+		ses.executeScriptOnRemote(req, pos)
+	}
 
 	return nil
 }