cassiopeia: finishing up version 0.3.0

This commit does kind of a lot to get cass(1) over the finish line.
For one it implements all the CLI functions (well, almost all) with
their respective parameters, and also creates a new `gen` module which
uses the IR stream to generate a new file based on the old one, while
updating header fields that need to be updated (currently only
`version`).

This version does nothing with the actual header values, and probably
has a lot of bugs.  More documentation will follow in future
cassiopeia commits.

1 files changed, 7 insertions, 0 deletions

diff --git a/apps/cassiopeia/src/date.rs b/apps/cassiopeia/src/date.rs
index 00d8a700859a..df366f6717aa 100644
--- a/apps/cassiopeia/src/date.rs
+++ b/apps/cassiopeia/src/date.rs
@@ -24,3 +24,10 @@ impl From<NaiveDate> for Date {
         Self { inner }
     }
 }
+
+
+impl ToString for Date {
+    fn to_string(&self) -> String {
+        format!("{}", self.inner.format("%Y-%m-%d"))
+    }
+}