Rewrite Project, remove SourceProject (#274)

* Rewrite project file to have relative paths and drop SourceProject

* Redo project error types

* Tidy up and document Project type

* Strip out init command

src/commands/init.rs

@@ -1,37 +1,17 @@
 use failure::Fail;
 
-use crate::{
-    cli::{InitCommand, InitKind},
-    project::{Project, ProjectInitError},
-};
+use crate::{cli::InitCommand, project::ProjectError};
 
 #[derive(Debug, Fail)]
 pub enum InitError {
     #[fail(display = "Project init error: {}", _0)]
-    ProjectInitError(#[fail(cause)] ProjectInitError),
+    ProjectError(#[fail(cause)] ProjectError),
 }
 
 impl_from!(InitError {
-    ProjectInitError => ProjectInitError,
+    ProjectError => ProjectError,
 });
 
-pub fn init(options: InitCommand) -> Result<(), InitError> {
-    let (project_path, project_kind) = match options.kind {
-        InitKind::Place => {
-            let path = Project::init_place(&options.path)?;
-            (path, "place")
-        }
-        InitKind::Model => {
-            let path = Project::init_model(&options.path)?;
-            (path, "model")
-        }
-    };
-
-    println!(
-        "Created new {} project file at {}",
-        project_kind,
-        project_path.display()
-    );
-
-    Ok(())
+pub fn init(_options: InitCommand) -> Result<(), InitError> {
+    unimplemented!("init command");
 }