compiles without warnings

src/bin/main.rs

@@ -3,29 +3,14 @@ extern crate crowbook;
 use crowbook::{HtmlRenderer, Book};
 use std::env;
 
-
-
 fn main() {
-    let config = "
-author: Lizzie Crowdagger
-title: Pas tout à fait des hommes
-lang: fr
-numbering: false
-autoclean: true
-cover: book-example/cover.png
-
-+ book_example/chapitre_01.md
-+ book_example/chapitre_02.md
-+ book_example/chapitre_03.md
-";
-
     let mut args = env::args();
     args.next(); //discard program name
 
     match args.next() {
         None => println!("Needs the name of a book config file"),
         Some(ref s) => {
-            let mut book = Book::new_from_file(s).unwrap();
+            let book = Book::new_from_file(s).unwrap();
             let mut html = HtmlRenderer::new(&book);
             println!("{}", html.render_book().unwrap());
         }

src/lib/ast_to_md.rs

@@ -1,5 +1,4 @@
 use token::Token;
-use std::borrow::Cow;
 
 fn parse_token(token: Token) -> String {
     match token {

src/lib/book.rs

@@ -3,6 +3,8 @@ use cleaner::{Cleaner, French};
 
 use std::fs::File;
 use std::io::Read;
+use std::env;
+use std::path::Path;
 
 use mustache::MapBuilder;
 
@@ -44,8 +46,21 @@ impl Book {
     }
 
     /// Creates a new book from a file
+    ///
+    /// This method also changes the current directory to the one of this file
     pub fn new_from_file(filename: &str) -> Result<Book> {
-        let mut f = try!(File::open(filename).map_err(|_| Error::FileNotFound(String::from(filename))));
+        let path = Path::new(filename);
+        let mut f = try!(File::open(&path).map_err(|_| Error::FileNotFound(String::from(filename))));
+
+        // change current directory
+        if let Some(parent) = path.parent() {
+            if !env::set_current_dir(&parent).is_ok() {
+                return Err(Error::ConfigParser("could not change current directory to the one of the config file",
+                                               format!("{}", parent.display())));
+            }
+        }
+
+        
         let mut s = String::new();
 
         try!(f.read_to_string(&mut s).map_err(|_| Error::ConfigParser("file contains invalid UTF-8, could not parse it",
@@ -109,7 +124,7 @@ impl Book {
         for line in s.lines() {
             let line = line.trim();
             let bool_error = |_| Error::ConfigParser("could not parse bool", String::from(line));
-            if line.is_empty() {
+            if line.is_empty() || line.starts_with('#') {
                 continue;
             }
             if line.starts_with('-') {

src/lib/cleaner.rs

@@ -1,5 +1,3 @@
-use std::borrow::Cow;
-
 /// Custom function because we don't really want to touch \t or \n
 fn is_whitespace(c: char) -> bool {
     c == ' ' || c == ' ' || c == ' '

src/lib/html.rs

@@ -5,7 +5,6 @@ use parser::Parser;
 use error::{Error,Result};
 
 use mustache;
-use mustache::MapBuilder;
 
 /// Renderer for HTML.
 ///

src/lib/token.rs

@@ -1,5 +1,3 @@
-use std::borrow::Cow;
-
 #[derive(Debug, PartialEq, Clone)]
 pub enum Token {
     Str(String),