1 files changed, 22 insertions, 10 deletions
diff --git a/gils/tail.rv b/gils/tail.rv
index c1ca124..c0ce1df 100644
--- a/gils/tail.rv
+++ b/gils/tail.rv
@@ -1,29 +1,41 @@
 # my tail is 16 inches long
 # and its between my legs
 
-fn file_lines(path) do
+fn file_lines(path) -> table | :nil do
   const size = fs:size(path)
-  if size < 0 return :nil
-  const contents = if size > 0 fs:read_bytes(path, 0, size) else ""
+  if (size < 0)
+    return :nil
+
+  const contents = if (size > 0) fs:read_bytes(path, 0, size) else ""
   const raw_lines = contents:split("\n")
   let result = {}
+
   for index in 0..raw_lines:len() do
-    if (index < raw_lines:len() - 1 or raw_lines[index]:len() > 0) result:push(raw_lines[index])
+    if (index < raw_lines:len() - 1 or raw_lines[index]:len() > 0)
+      result:push(raw_lines[index])
   end
   return result
 end
 
 const context = env.ctx
-if context.argv:len() < 2 do fail("usage: tail [n] <path>\n") end
-else do
+if context.argv:len() < 2 do
+  fail("usage: tail [n] <path>\n")
+end else do
   let limit = 10
   let path_arg = context.argv[1]
-  if (context.argv:len() >= 3 and parse_pid(context.argv[1]) >= 0) do limit = parse_pid(context.argv[1]) path_arg = context.argv[2] end
+  if context.argv:len() >= 3 and parse_pid(context.argv[1]) >= 0 do
+    limit = parse_pid(context.argv[1])
+    path_arg = context.argv[2]
+  end
+
   const lines = file_lines(expand_path(path_arg))
-  if lines == :nil do fail("tail: no such file\n") end
-  else do
+  if lines == :nil do
+    fail("tail: no such file\n")
+  end else do
     let start = lines:len() - limit
-    if start < 0 do start = 0 end
+    if (start < 0)
+      start = 0
+
     for index in start..lines:len() do puts("#{lines[index]}\n") end
   end
 end