Don't swallow namespace-parsing errors

Previously, if there was a problem with the inputs and bild failed to
determine the namespace, 'fromPath' would return 'Nothing' and then
'catMaybes' would drop the error-causing input altogether. In the one
time that I had a bad input, this made debugging incredibly difficult.
It's always a bad idea to swallow errors silently, so instead lets just
kill the program if we have bad inputs.

1 files changed, 15 insertions, 0 deletions

diff --git a/Biz/Ide/version.bash b/Biz/Ide/version.bash
new file mode 100755
index 0000000..5b017d9
--- /dev/null
+++ b/Biz/Ide/version.bash
@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+#
+# simple implementation of kelvin versioning
+##
+  ns=$1
+  if [[ -e "$1" ]]; then
+    commits=$(git log --oneline --follow $ns | wc -l)
+    # gold melts at 1337 kelvin, so we start with this
+    # bc we are forging gold here
+    version=$(bc -l <<< "1337 - $commits")
+    echo $version
+  else
+    echo -1  # signal that file doesn't exist
+  fi
+##