implement rtree drop

rtree is functionally complete, but the implementation is very messy
now. :(

1 files changed, 13 insertions, 1 deletions

diff --git a/pkg/rtree/main.go b/pkg/rtree/main.go
index 4c8fb98..683daeb 100644
--- a/pkg/rtree/main.go
+++ b/pkg/rtree/main.go
@@ -38,7 +38,10 @@ func Exec(args []string) {
 		}
 		commandGet(args[1])
 	case "drop":
-		panic("unimplemented")
+		if len(args) != 2 {
+			usageAndExit()
+		}
+		commandDrop(args[1])
 	case "index":
 		if len(args) != 1 {
 			usageAndExit()
@@ -88,6 +91,15 @@ func commandGet(url string) {
 	}
 }
 
+func commandDrop(url string) {
+	index := ReadIndex()
+	repo := index.InteractiveFindRepo(url, false)
+	if repo != nil {
+		index.InteractiveDropRepo(repo)
+		index.Write()
+	}
+}
+
 func commandIndex() {
 	index := ReadIndex()
 	util.FatalIfError(index.InteractiveRebuild())