1 files changed, 46 insertions, 0 deletions
diff --git a/src/Command/Subtree.hs b/src/Command/Subtree.hs
new file mode 100644
index 0000000..8d42d73
--- /dev/null
+++ b/src/Command/Subtree.hs
@@ -0,0 +1,46 @@
+module Command.Subtree (
+    SubtreeCommand,
+) where
+
+import Data.Text (Text)
+import Data.Text qualified as T
+
+import Command
+import Output
+import Repo
+
+
+data SubtreeCommand = SubtreeCommand SubtreeOptions [ Text ]
+
+data SubtreeOptions = SubtreeOptions
+
+instance Command SubtreeCommand where
+    commandName _ = "subtree"
+    commandDescription _ = "Resolve subdirectory of given repo tree"
+
+    type CommandArguments SubtreeCommand = [ Text ]
+
+    commandUsage _ = T.pack $ unlines $
+        [ "Usage: minici subtree <tree> <path>"
+        ]
+
+    type CommandOptions SubtreeCommand = SubtreeOptions
+    defaultCommandOptions _ = SubtreeOptions
+
+    commandInit _ opts = SubtreeCommand opts
+    commandExec = cmdSubtree
+
+
+cmdSubtree :: SubtreeCommand -> CommandExec ()
+cmdSubtree (SubtreeCommand SubtreeOptions args) = do
+    [ treeParam, path ] <- return args
+    out <- getOutput
+    repo <- getDefaultRepo
+
+    let ( tree, subdir ) =
+            case T.splitOn "(" treeParam of
+                (t : param : _) -> ( t, T.unpack $ T.takeWhile (/= ')') param )
+                _ -> ( treeParam, "" )
+
+    subtree <- getSubtree Nothing (T.unpack path) =<< readTree repo subdir tree
+    outputMessage out $ textTreeId $ treeId subtree