Move copyfiles function to client-go

Resolves #443

This PR will remove dependency of oc binary for `copyfiles` function which copies file to component while `odo push`

cmd/push.go

@@ -10,6 +10,8 @@ import (
 	"github.com/redhat-developer/odo/pkg/component"
 	"github.com/redhat-developer/odo/pkg/project"
 
+	"path/filepath"
+
 	log "github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 )
@@ -77,12 +79,16 @@ var pushCmd = &cobra.Command{
 				checkError(err, "")
 			}
 
-			var asFile bool
-			if sourceType == "binary" {
-				asFile = true
+			if sourceType == "local" {
+				log.Debugf("Copying directory %s to pod", u.Path)
+				err = component.PushLocal(client, componentName, applicationName, u.Path, os.Stdout, []string{})
+			} else {
+				dir := filepath.Dir(u.Path)
+				log.Debugf("Copying file %s to pod", u.Path)
+				err = component.PushLocal(client, componentName, applicationName, dir, os.Stdout, []string{u.Path})
 			}
-			err = component.PushLocal(client, componentName, applicationName, u.Path, asFile, os.Stdout)
 			checkError(err, fmt.Sprintf("failed to push component: %v", componentName))
+
 		case "git":
 			// currently we don't support changing build type
 			// it doesn't make sense to use --dir with git build

cmd/watch.go

@@ -46,7 +46,7 @@ var watchCmd = &cobra.Command{
 			componentName = args[0]
 		}
 
-		sourceType, sourcePath, err := component.GetComponentSource(client, componentName, applicationName, projectName)
+		_, sourcePath, err := component.GetComponentSource(client, componentName, applicationName, projectName)
 		checkError(err, "Unable to get source for %s component.", componentName)
 
 		u, err := url.Parse(sourcePath)
@@ -58,18 +58,7 @@ var watchCmd = &cobra.Command{
 		}
 		watchPath := u.Path
 
-		var asFile bool
-		switch sourceType {
-		case "binary":
-			asFile = true
-		case "local":
-			asFile = false
-		default:
-			fmt.Printf("Watching component that has source type  %s is not supported.", sourceType)
-			os.Exit(1)
-		}
-
-		err = component.WatchAndPush(client, componentName, applicationName, watchPath, asFile, stdout)
+		err = component.WatchAndPush(client, componentName, applicationName, watchPath, stdout)
 		checkError(err, "Error while trying to watch %s", watchPath)
 	},
 }

pkg/component/component.go

@@ -165,14 +165,10 @@ func GetCurrent(client *occlient.Client, applicationName string, projectName str
 }
 
 // PushLocal push local code to the cluster and trigger build there.
-// asFile indicates if it is a binary component or not
-func PushLocal(client *occlient.Client, componentName string, applicationName string, path string, asFile bool, out io.Writer) error {
+// files is list of changed files captured during `odo watch` or binary file
+func PushLocal(client *occlient.Client, componentName string, applicationName string, path string, out io.Writer, files []string) error {
 	const targetPath = "/opt/app-root/src"
 
-	if !asFile {
-		// We need to make sure that there is a '/' at the end, otherwise rsync will sync files to wrong directory
-		path = fmt.Sprintf("%s/", path)
-	}
 	// Find DeploymentConfig for component
 	componentLabels := componentlabels.GetLabels(componentName, applicationName, false)
 	componentSelector := util.ConvertLabelsToSelector(componentLabels)
@@ -187,17 +183,11 @@ func PushLocal(client *occlient.Client, componentName string, applicationName st
 	if err != nil {
 		return errors.Wrapf(err, "error while waiting for pod  %s", podSelector)
 	}
-	var syncOutput string
-	if !asFile {
-		syncOutput, err = client.RsyncPath(path, pod.Name, targetPath)
-	} else {
-		syncOutput, err = client.CopyFile(path, pod.Name, targetPath)
-
-	}
+	log.Debugf("Copying to pod %s", pod.Name)
+	err = client.CopyFile(path, pod.Name, targetPath, files)
 	if err != nil {
 		return errors.Wrap(err, "unable push files to pod")
 	}
-	fmt.Fprintf(out, syncOutput)
 	fmt.Fprintf(out, "Please wait, building component....\n")
 
 	// use pipes to write output from ExecCMDInContainer in yellow  to 'out' io.Writer

pkg/component/watch.go

@@ -12,6 +12,7 @@ import (
 	"github.com/redhat-developer/odo/pkg/occlient"
 
 	"github.com/fsnotify/fsnotify"
+	"github.com/pkg/errors"
 	log "github.com/sirupsen/logrus"
 )
 
@@ -77,7 +78,7 @@ func addRecursiveWatch(watcher *fsnotify.Watcher, path string, ignores []string)
 // WatchAndPush watches path, if something changes in  that path it calls PushLocal
 // ignores .git/* by default
 // inspired by https://github.com/openshift/origin/blob/e785f76194c57bd0e1674c2f2776333e1e0e4e78/pkg/oc/cli/cmd/rsync/rsync.go#L257
-func WatchAndPush(client *occlient.Client, componentName string, applicationName, path string, asFile bool, out io.Writer) error {
+func WatchAndPush(client *occlient.Client, componentName string, applicationName, path string, out io.Writer) error {
 	log.Debugf("starting WatchAndPush, path: %s, component: %s", path, componentName)
 
 	// it might be better to expose this as argument in the future
@@ -170,7 +171,18 @@ func WatchAndPush(client *occlient.Client, componentName string, applicationName
 				fmt.Fprintf(out, "File %s changed\n", file)
 			}
 			fmt.Fprintf(out, "Pushing files...\n")
-			err := PushLocal(client, componentName, applicationName, path, asFile, out)
+			fileInfo, err := os.Stat(path)
+			if err != nil {
+				return errors.Wrapf(err, "%s: file doesn't exist", path)
+			}
+			if fileInfo.IsDir() {
+				log.Debugf("Copying files %s to pod", changedFiles)
+				err = PushLocal(client, componentName, applicationName, path, out, changedFiles)
+			} else {
+				pathDir := filepath.Dir(path)
+				log.Debugf("Copying file %s to pod", path)
+				err = PushLocal(client, componentName, applicationName, pathDir, out, []string{path})
+			}
 			if err != nil {
 				// Intentionally not exiting on error here.
 				// We don't want to break watch when push failed, it might be fixed with the next change.