Add blueprint file input as option for blueprint apply

crates/aiken-project/src/lib.rs

@@ -565,6 +565,7 @@ where
     pub fn construct_parameter_incrementally<F>(
         &self,
         title: Option<&String>,
+        blueprint_input: &Option<PathBuf>,
         ask: F,
     ) -> Result<PlutusData, Error>
     where
@@ -574,7 +575,12 @@ where
         ) -> Result<PlutusData, blueprint::error::Error>,
     {
         // Read blueprint
-        let blueprint = File::open(self.blueprint_path())
+        let project_blueprint_path = self.blueprint_path();
+        let blueprint_path = blueprint_input
+            .as_ref()
+            .map(|p| p.as_path())
+            .unwrap_or_else(|| &project_blueprint_path);
+        let blueprint = File::open(blueprint_path)
             .map_err(|_| blueprint::error::Error::InvalidOrMissingFile)?;
         let blueprint: Blueprint = serde_json::from_reader(BufReader::new(blueprint))?;
 

crates/aiken/src/cmd/blueprint/apply.rs

@@ -26,6 +26,10 @@ pub struct Args {
     /// `plutus.json`), or use the `cbor.serialise` function from the Aiken standard library.
     parameter: Option<String>,
 
+    /// Path to a blueprint file to be used as input.
+    #[clap(short = 'b', long, value_parser)]
+    blueprint_input: Option<PathBuf>,
+
     /// Output file. Optional, print on stdout when omitted.
     #[clap(short, long)]
     out: Option<PathBuf>,
@@ -42,6 +46,7 @@ pub struct Args {
 pub fn exec(
     Args {
         parameter,
+        blueprint_input,
         out,
         module,
         validator,
@@ -103,7 +108,7 @@ pub fn exec(
                     })
             }
 
-            None => p.construct_parameter_incrementally(title, ask_schema)?,
+            None => p.construct_parameter_incrementally(title, &blueprint_input, ask_schema)?,
         };
 
         eprintln!(