Add: add_step to Roadmap

1 files changed, 7 insertions, 0 deletions

diff --git a/src/lib.rs b/src/lib.rs
index 625bb90..10ab1fa 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -85,6 +85,13 @@ impl Roadmap {
         None
     }
 
+    /// Add a step to the roadmap. This may fail, if there's a step
+    /// with that name already.
+    pub fn add_step(mut self, step: Step) -> Result<(), Box<dyn std::error::Error>> {
+        self.steps.push(step);
+        Ok(())
+    }
+
     /// Get a Graphviz dot language representation of a roadmap. This
     /// is the textual representation, and the caller needs to use the
     /// Graphviz dot(1) tool to create an image from it.