Added a version file to revel/cmd

Updated import path detection to make it smarter. You can now use absolute paths etc..

model/command_config.go

@@ -1,5 +1,24 @@
 package model
 
+// The constants
+import (
+	"go/build"
+	"os"
+	"path/filepath"
+	"strings"
+	"github.com/revel/cmd/utils"
+)
+
+const (
+	NEW COMMAND = iota + 1
+	RUN
+	BUILD
+	PACKAGE
+	CLEAN
+	TEST
+	VERSION
+)
+
 type (
 	// The Revel command type
 	COMMAND int
@@ -28,13 +47,13 @@ type (
 		// The build command
 		Build struct {
 			TargetPath string `short:"t" long:"target-path" description:"Path to target folder. Folder will be completely deleted if it exists" required:"true"`
-			ImportPath string `short:"a" long:"application-path" description:"Path to applicaiton folder" required:"true"`
+			ImportPath string `short:"a" long:"application-path" description:"Path to applicaiton folder" `
 			Mode       string `short:"m" long:"run-mode" description:"The mode to run the application in"`
 			CopySource bool   `short:"s" long:"include-source" description:"Copy the source code as well"`
 		} `command:"build"`
 		// The run command
 		Run struct {
-			ImportPath string `short:"a" long:"application-path" description:"Path to applicaiton folder" required:"true"`
+			ImportPath string `short:"a" long:"application-path" description:"Path to applicaiton folder" `
 			Mode       string `short:"m" long:"run-mode" description:"The mode to run the application in"`
 			Port       string `short:"p" long:"port" description:"The port to listen"`
 			NoProxy    bool   `short:"n" long:"no-proxy" description:"True if proxy server should not be started. This will only update the main and routes files on change"`
@@ -42,17 +61,17 @@ type (
 		// The package command
 		Package struct {
 			Mode       string `short:"m" long:"run-mode" description:"The mode to run the application in"`
-			ImportPath string `short:"a" long:"application-path" description:"Path to applicaiton folder" required:"true"`
+			ImportPath string `short:"a" long:"application-path" description:"Path to applicaiton folder" `
 			CopySource bool   `short:"s" long:"include-source" description:"Copy the source code as well"`
 		} `command:"package"`
 		// The clean command
 		Clean struct {
-			ImportPath string `short:"a" long:"application-path" description:"Path to applicaiton folder" required:"true"`
+			ImportPath string `short:"a" long:"application-path" description:"Path to applicaiton folder" `
 		} `command:"clean"`
 		// The test command
 		Test struct {
 			Mode       string `short:"m" long:"run-mode" description:"The mode to run the application in"`
-			ImportPath string `short:"a" long:"application-path" description:"Path to applicaiton folder" required:"true"`
+			ImportPath string `short:"a" long:"application-path" description:"Path to applicaiton folder" `
 			Function   string `short:"f" long:"suite-function" description:"The suite.function"`
 		} `command:"test"`
 		// The version command
@@ -61,3 +80,59 @@ type (
 		} `command:"version"`
 	}
 )
+
+// Updates the import path depending on the command
+func (c *CommandConfig) UpdateImportPath() bool {
+	var importPath string
+	required := true
+	switch c.Index {
+	case NEW:
+		importPath = c.New.ImportPath
+	case RUN:
+		importPath = c.Run.ImportPath
+	case BUILD:
+		importPath = c.Build.ImportPath
+	case PACKAGE:
+		importPath = c.Package.ImportPath
+	case CLEAN:
+		importPath = c.Clean.ImportPath
+	case TEST:
+		importPath = c.Test.ImportPath
+	case VERSION:
+		importPath = c.Version.ImportPath
+		required = false
+	}
+
+	if len(importPath) == 0 || filepath.IsAbs(importPath) || importPath[0] == '.' {
+		// Try to determine the import path from the GO paths and the command line
+		currentPath, err := os.Getwd()
+		if len(importPath) > 0 {
+			if importPath[0] == '.' {
+				// For a relative path
+				importPath = filepath.Join(currentPath, importPath)
+			}
+			// For an absolute path
+			currentPath, _ = filepath.Abs(importPath)
+
+		}
+		if err == nil {
+			for _, path := range strings.Split(build.Default.GOPATH, string(filepath.ListSeparator)) {
+				utils.Logger.Infof("Checking import path %s with %s", currentPath, path)
+				if strings.HasPrefix(currentPath, path)  {
+					importPath = currentPath[len(path) + 1:]
+					// Remove the source from the path if it is there
+					if len(importPath)>4 && strings.ToLower(importPath[0:4]) == "src/" {
+						importPath = importPath[4:]
+					} else if importPath == "src" {
+						importPath = ""
+					}
+					utils.Logger.Info("Updated import path", "path", importPath)
+				}
+			}
+		}
+	}
+
+	c.ImportPath = importPath
+	utils.Logger.Info("Returned import path", "path", importPath)
+	return (len(importPath) > 0 || !required)
+}