Started to implement init

.gitignore

@@ -1,2 +1,4 @@
 target
 Cargo.lock
+
+book-test

src/lib.rs

@@ -1,3 +1,3 @@
-#[test]
-fn it_works() {
-}
+pub mod mdbook;
+
+pub use mdbook::MDBook;

src/main.rs

@@ -2,6 +2,7 @@ extern crate mdbook;
 extern crate getopts;
 use std::env;
 
+use mdbook::MDBook;
 
 const NAME: &'static str = "mdbook";
 const VERSION: &'static str = "0.0.1";
@@ -108,7 +109,14 @@ fn init(args: Vec<String>) {
 
     if matches.opt_present("help") {
         println!("{}", usage);
+        return;
     }
+
+    let dir = std::env::current_dir().unwrap();
+    let book = MDBook::new();
+
+    book.init(&dir);
+
 }
 
 fn build(args: Vec<String>) {

src/mdbook.rs

@@ -0,0 +1,79 @@
+use std::path::PathBuf;
+use std::fs::{self, File, metadata};
+
+pub struct MDBook {
+    dest: PathBuf,
+    src: PathBuf,
+}
+
+impl MDBook {
+    pub fn new() -> Self {
+        MDBook {
+            dest: PathBuf::from("book"),
+            src: PathBuf::from("src"),
+        }
+    }
+
+    pub fn init(&self, dir: &PathBuf) -> Result<(),&str> {
+
+        // Hacky way to check if the directory exists... Until PathExt moves to stable
+        match metadata(dir) {
+            Err(_) => return Err("Destination path does not exist"),
+            _ => {}
+        }
+
+        let dest = if self.dest.is_relative() {
+            dir.join(&self.dest)
+        } else {
+            self.dest.clone()
+        };
+
+        let src = if self.src.is_relative() {
+            dir.join(&self.src)
+        } else {
+            self.src.clone()
+        };
+
+        // Hacky way to check if the directory exists... Until PathExt moves to stable
+        match metadata(&dest) {
+            Err(_) => {
+                    // There is a very high chance that the error is due to the fact that
+                    // the directory / file does not exist
+                    fs::create_dir(&dest).unwrap();
+                },
+            Ok(_) => { /* If there is no error, the directory / file does exist */ }
+        }
+
+        // Hacky way to check if the directory exists... Until PathExt moves to stable
+        match metadata(&src) {
+            Err(_) => {
+                    // There is a very high chance that the error is due to the fact that
+                    // the directory / file does not exist
+                    fs::create_dir(&src).unwrap();
+                },
+            Ok(_) => { /* If there is no error, the directory / file does exist */ }
+        }
+
+        // Hacky way to check if the directory exists... Until PathExt moves to stable
+        match metadata(dir.join("src/SUMMARY.md")) {
+            Err(_) => {
+                    // There is a very high chance that the error is due to the fact that
+                    // the directory / file does not exist
+                    File::create("src/SUMMARY.md").unwrap();
+                },
+            Ok(_) => { /* If there is no error, the directory / file does exist */ }
+        }
+
+        return Ok(());
+    }
+
+    pub fn set_dest(mut self, dest: PathBuf) -> Self {
+        self.dest =  dest;
+        self
+    }
+
+    pub fn set_src(mut self, src: PathBuf) -> Self {
+        self.src = src;
+        self
+    }
+}