create log later in processing (closes #177)

cmd/analyze.go

@@ -30,6 +30,8 @@ func doAnalyzeCmd(cmd *cobra.Command, args []string) {
 		utils.Exit(1)
 	}
 
+	initLogging()
+
 	runtime.Run(runtime.Options{
 		ImageId:      userImage,
 		ExportFile:   exportFile,

cmd/build.go

@@ -22,6 +22,8 @@ func init() {
 func doBuildCmd(cmd *cobra.Command, args []string) {
 	defer utils.Cleanup()
 
+	initLogging()
+
 	runtime.Run(runtime.Options{
 		BuildArgs:  args,
 		ExportFile: exportFile,

cmd/root.go

@@ -40,7 +40,6 @@ func Execute() {
 
 func init() {
 	cobra.OnInitialize(initConfig)
-	cobra.OnInitialize(initLogging)
 
 	rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.dive.yaml, ~/.config/dive.yaml, or $XDG_CONFIG_HOME/dive.yaml)")
 	rootCmd.PersistentFlags().BoolP("version", "v", false, "display version number")

filetree/cache.go

@@ -1,5 +1,9 @@
 package filetree
 
+import (
+	"github.com/sirupsen/logrus"
+)
+
 type TreeCacheKey struct {
 	bottomTreeStart, bottomTreeStop, topTreeStart, topTreeStop int
 }
@@ -24,7 +28,10 @@ func (cache *TreeCache) Get(bottomTreeStart, bottomTreeStop, topTreeStart, topTr
 func (cache *TreeCache) buildTree(key TreeCacheKey) *FileTree {
 	newTree := StackTreeRange(cache.refTrees, key.bottomTreeStart, key.bottomTreeStop)
 	for idx := key.topTreeStart; idx <= key.topTreeStop; idx++ {
-		newTree.CompareAndMark(cache.refTrees[idx])
+		err := newTree.CompareAndMark(cache.refTrees[idx])
+		if err != nil {
+			logrus.Errorf("unable to build tree: %+v", err)
+		}
 	}
 	return newTree
 }