From aac555867e9397cae28a62d07f0b978efd880087 Mon Sep 17 00:00:00 2001
From: Dan Ballard <dan@mindstab.net>
Date: Thu, 21 Apr 2022 17:24:42 -0700
Subject: [PATCH] README and panic on no versions

---
 README.md   | 4 ++++
 src/main.rs | 3 +++
 2 files changed, 7 insertions(+)
 create mode 100644 README.md

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..f804203
--- /dev/null
+++ b/README.md
@@ -0,0 +1,4 @@
+# Cwtch Update Bot
+
+- Creates a persistent profile in ~/.cwtch/bots/update_bot
+- Servers the latest version of cwtch from the directory `cwtch_dist`
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
index 82e4f20..be33855 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -41,6 +41,9 @@ impl UpdateBot {
                 versions_dirs.push(path);
             }
         }
+        if versions_dirs.len() == 0 {
+            panic!("no cwtch versions detected in {}!", DIST_DIR)
+        }
         versions_dirs.sort();
         println!("sorted vd: {:?}", versions_dirs);
         let latest_version = versions_dirs[versions_dirs.len() - 1].clone();