Fix 'aiken new', now require project name in specific format.

crates/cli/src/cmd/error.rs

@@ -4,7 +4,7 @@ use thiserror::Error;
 
 #[derive(Debug, Error)]
 pub enum Error {
-    #[error("{} is not a valid project name. {}", name, reason.to_string())]
+    #[error("'{}' is not a valid project name: {}", name, reason.to_string())]
     InvalidProjectName {
         name: String,
         reason: InvalidProjectNameReason,
@@ -21,15 +21,16 @@ pub enum InvalidProjectNameReason {
 impl fmt::Display for InvalidProjectNameReason {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         match self {
-            InvalidProjectNameReason::AikenPrefix => write!(f, "It is a reserved word in Aiken."),
+            InvalidProjectNameReason::AikenPrefix => write!(f, "it's a reserved word in Aiken."),
             InvalidProjectNameReason::AikenReservedModule => {
-                write!(f, "It is a reserved module name in Aiken.")
+                write!(f, "it's a reserved module name in Aiken.")
             }
             InvalidProjectNameReason::Format => write!(
                 f,
-                "It does not have the correct format. Project names \
-                must start with a lowercase letter and may only contain lowercase letters, \
-                numbers and underscores."
+                "it is malformed.\n\nProjects must be named as:\n\n\t\
+                {{repository}}/{{project}}\n\nEach part must start with a lowercase letter \
+                and may only contain lowercase letters, numbers, hyphens or underscores.\
+                \nFor example,\n\n\taiken-lang/stdlib"
             ),
         }
     }

crates/cli/src/cmd/new.rs

@@ -23,7 +23,7 @@ pub struct Creator {
 
 impl Creator {
     fn new(args: Args, project_name: String) -> Self {
-        let root = args.name;
+        let root = PathBuf::from(args.name.file_name().unwrap());
         let lib = root.join("lib");
         let validators = root.join("validators");
         let project_name = project_name;
@@ -124,9 +124,7 @@ Find more on the [Aiken's user manual](https://aiken-lang.org).
                 version = "0.0.0"
                 licences = ["Apache-2.0"]
                 description = "Aiken contracts for project '{name}'"
-
-                [dependencies]
-
+                dependencies = []
                 "#,
                 name = self.project_name,
             },
@@ -136,7 +134,6 @@ Find more on the [Aiken's user manual](https://aiken-lang.org).
 
 fn write(path: PathBuf, contents: &str) -> miette::Result<()> {
     let mut f = fs::File::create(path).into_diagnostic()?;
-
     f.write_all(contents.as_bytes()).into_diagnostic()?;
     Ok(())
 }
@@ -152,8 +149,8 @@ fn validate_name(name: &str) -> Result<(), Error> {
             name: name.to_string(),
             reason: InvalidProjectNameReason::AikenReservedModule,
         })
-    } else if !regex::Regex::new("^[a-z][a-z0-9_]*$")
-        .expect("new name regex could not be compiled")
+    } else if !regex::Regex::new("^[a-z0-9_-]+/[a-z0-9_-]+$")
+        .expect("regex could not be compiled")
         .is_match(name)
     {
         Err(Error::InvalidProjectName {