Transition to 2018 edition (rust-lang#933)

* Transition to 2018 edition

* Update Travis CI badge in README

* Remove non-idiomatic `extern crate` lines

Cargo.toml

@@ -6,13 +6,14 @@ authors = [
     "Michael-F-Bryan <[email protected]>",
     "Matt Ickstadt <[email protected]>"
 ]
-description = "Creates a book from markdown files"
 documentation = "http://rust-lang-nursery.github.io/mdBook/index.html"
-repository = "https://github.com/rust-lang-nursery/mdBook"
+edition = "2018"
+exclude = ["/book-example/*"]
 keywords = ["book", "gitbook", "rustbook", "markdown"]
 license = "MPL-2.0"
 readme = "README.md"
-exclude = ["book-example/*"]
+repository = "https://github.com/rust-lang-nursery/mdBook"
+description = "Creates a book from markdown files"
 
 [dependencies]
 clap = "2.24"

README.md

@@ -4,7 +4,7 @@
     <tr>
         <td><strong>Linux / OS X</strong></td>
         <td>
-            <a href="https://travis-ci.org/rust-lang-nursery/mdBook"><img src="https://travis-ci.org/rust-lang-nursery/mdBook.svg?branch=master"></a>
+            <a href="https://travis-ci.com/rust-lang-nursery/mdBook"><img src="https://travis-ci.com/rust-lang-nursery/mdBook.svg?branch=master"></a>
         </td>
     </tr>
     <tr>
@@ -65,7 +65,7 @@ There are multiple ways to install mdBook.
    cargo install mdbook --vers "^0.1.0"
    ```
 
-3. **From Git**  
+3. **From Git**
 
    The version published to crates.io will ever so slightly be behind the
    version hosted here on GitHub. If you need the latest version you can build
@@ -77,7 +77,7 @@ There are multiple ways to install mdBook.
 
    Again, make sure to add the Cargo bin directory to your `PATH`.
 
-4. **For Contributions**  
+4. **For Contributions**
 
    If you want to contribute to mdBook you will have to clone the repository on
    your local machine:
@@ -152,9 +152,9 @@ party plugins. These plugins are just programs which will be invoked during the
 build process and are split into roughly two categories, *preprocessors* and
 *renderers*.
 
-Preprocessors are used to transform a book before it is sent to a renderer. 
-One example would be to replace all occurrences of 
-`{{#include some_file.ext}}` with the contents of that file. Some existing 
+Preprocessors are used to transform a book before it is sent to a renderer.
+One example would be to replace all occurrences of
+`{{#include some_file.ext}}` with the contents of that file. Some existing
 preprocessors are:
 
 - `index` - a built-in preprocessor (enabled by default) which will transform

examples/de-emphasize.rs

@@ -1,10 +1,5 @@
 //! An example preprocessor for removing all forms of emphasis from a markdown
 //! book.
-
-extern crate mdbook;
-extern crate pulldown_cmark;
-extern crate pulldown_cmark_to_cmark;
-
 use mdbook::book::{Book, BookItem, Chapter};
 use mdbook::errors::{Error, Result};
 use mdbook::preprocess::{Preprocessor, PreprocessorContext};

examples/nop-preprocessor.rs

@@ -1,12 +1,8 @@
-extern crate clap;
-extern crate mdbook;
-extern crate serde_json;
-
+use crate::nop_lib::Nop;
 use clap::{App, Arg, ArgMatches, SubCommand};
 use mdbook::book::Book;
 use mdbook::errors::Error;
 use mdbook::preprocess::{CmdPreprocessor, Preprocessor, PreprocessorContext};
-use nop_lib::Nop;
 use std::io;
 use std::process;
 

src/book/book.rs

@@ -5,8 +5,8 @@ use std::io::{Read, Write};
 use std::path::{Path, PathBuf};
 
 use super::summary::{parse_summary, Link, SectionNumber, Summary, SummaryItem};
-use config::BuildConfig;
-use errors::*;
+use crate::config::BuildConfig;
+use crate::errors::*;
 
 /// Load a book into memory from its `src/` directory.
 pub fn load_book<P: AsRef<Path>>(src_dir: P, cfg: &BuildConfig) -> Result<Book> {

src/book/init.rs

@@ -1,12 +1,11 @@
 use std::fs::{self, File};
 use std::io::Write;
 use std::path::PathBuf;
-use toml;
 
 use super::MDBook;
-use config::Config;
-use errors::*;
-use theme;
+use crate::config::Config;
+use crate::errors::*;
+use crate::theme;
 
 /// A helper for setting up a new book and its directory structure.
 #[derive(Debug, Clone, PartialEq)]

src/book/mod.rs

@@ -20,14 +20,14 @@ use std::string::ToString;
 use tempfile::Builder as TempFileBuilder;
 use toml::Value;
 
-use errors::*;
-use preprocess::{
+use crate::errors::*;
+use crate::preprocess::{
     CmdPreprocessor, IndexPreprocessor, LinkPreprocessor, Preprocessor, PreprocessorContext,
 };
-use renderer::{CmdRenderer, HtmlHandlebars, RenderContext, Renderer};
-use utils;
+use crate::renderer::{CmdRenderer, HtmlHandlebars, RenderContext, Renderer};
+use crate::utils;
 
-use config::Config;
+use crate::config::Config;
 
 /// The object used to manage and build a book.
 pub struct MDBook {
@@ -124,7 +124,6 @@ impl MDBook {
     /// `(section: String, bookitem: &BookItem)`
     ///
     /// ```no_run
-    /// # extern crate mdbook;
     /// # use mdbook::MDBook;
     /// # use mdbook::book::BookItem;
     /// # #[allow(unused_variables)]

src/book/summary.rs

@@ -1,4 +1,4 @@
-use errors::*;
+use crate::errors::*;
 use memchr::{self, Memchr};
 use pulldown_cmark::{self, Event, Tag};
 use std::fmt::{self, Display, Formatter};

src/cmd/build.rs

@@ -1,7 +1,7 @@
+use crate::{get_book_dir, open};
 use clap::{App, ArgMatches, SubCommand};
 use mdbook::errors::Result;
 use mdbook::MDBook;
-use {get_book_dir, open};
 
 // Create clap subcommand arguments
 pub fn make_subcommand<'a, 'b>() -> App<'a, 'b> {

src/cmd/clean.rs

@@ -1,5 +1,5 @@
+use crate::get_book_dir;
 use clap::{App, ArgMatches, SubCommand};
-use get_book_dir;
 use mdbook::errors::*;
 use mdbook::MDBook;
 use std::fs;

src/cmd/init.rs

@@ -1,5 +1,5 @@
+use crate::get_book_dir;
 use clap::{App, ArgMatches, SubCommand};
-use get_book_dir;
 use mdbook::config;
 use mdbook::errors::Result;
 use mdbook::MDBook;

src/cmd/serve.rs

@@ -1,18 +1,11 @@
-extern crate iron;
-extern crate staticfile;
-extern crate ws;
-
-use self::iron::{
-    status, AfterMiddleware, Chain, Iron, IronError, IronResult, Request, Response, Set,
-};
 #[cfg(feature = "watch")]
 use super::watch;
+use crate::{get_book_dir, open};
 use clap::{App, Arg, ArgMatches, SubCommand};
+use iron::{status, AfterMiddleware, Chain, Iron, IronError, IronResult, Request, Response, Set};
 use mdbook::errors::*;
 use mdbook::utils;
 use mdbook::MDBook;
-use std;
-use {get_book_dir, open};
 
 struct ErrorRecover;
 

src/cmd/test.rs

@@ -1,5 +1,5 @@
+use crate::get_book_dir;
 use clap::{App, Arg, ArgMatches, SubCommand};
-use get_book_dir;
 use mdbook::errors::Result;
 use mdbook::MDBook;
 

src/cmd/watch.rs

@@ -1,15 +1,13 @@
-extern crate notify;
-
-use self::notify::Watcher;
+use crate::{get_book_dir, open};
 use clap::{App, ArgMatches, SubCommand};
 use mdbook::errors::Result;
 use mdbook::utils;
 use mdbook::MDBook;
+use notify::Watcher;
 use std::path::{Path, PathBuf};
 use std::sync::mpsc::channel;
 use std::thread::sleep;
 use std::time::Duration;
-use {get_book_dir, open};
 
 // Create clap subcommand arguments
 pub fn make_subcommand<'a, 'b>() -> App<'a, 'b> {
@@ -55,8 +53,8 @@ pub fn trigger_on_change<F>(book: &MDBook, closure: F)
 where
     F: Fn(Vec<PathBuf>, &Path),
 {
-    use self::notify::DebouncedEvent::*;
-    use self::notify::RecursiveMode::*;
+    use notify::DebouncedEvent::*;
+    use notify::RecursiveMode::*;
 
     // Create a channel to receive the events.
     let (tx, rx) = channel();

src/config.rs

@@ -9,9 +9,7 @@
 //! # Examples
 //!
 //! ```rust
-//! # extern crate mdbook;
 //! # use mdbook::errors::*;
-//! # extern crate toml;
 //! use std::path::PathBuf;
 //! use std::str::FromStr;
 //! use mdbook::Config;
@@ -52,7 +50,6 @@
 #![deny(missing_docs)]
 
 use serde::{Deserialize, Deserializer, Serialize, Serializer};
-use serde_json;
 use std::env;
 use std::fs::File;
 use std::io::Read;
@@ -64,7 +61,7 @@ use toml_query::delete::TomlValueDeleteExt;
 use toml_query::insert::TomlValueInsertExt;
 use toml_query::read::TomlValueReadExt;
 
-use errors::*;
+use crate::errors::*;
 
 /// The overall configuration object for MDBook, essentially an in-memory
 /// representation of `book.toml`.

src/lib.rs

@@ -85,24 +85,14 @@
 
 #[macro_use]
 extern crate error_chain;
-extern crate handlebars;
-extern crate itertools;
 #[macro_use]
 extern crate lazy_static;
 #[macro_use]
 extern crate log;
-extern crate memchr;
-extern crate pulldown_cmark;
-extern crate regex;
-extern crate serde;
 #[macro_use]
 extern crate serde_derive;
 #[macro_use]
 extern crate serde_json;
-extern crate shlex;
-extern crate tempfile;
-extern crate toml;
-extern crate toml_query;
 
 #[cfg(test)]
 #[macro_use]
@@ -121,10 +111,10 @@ pub mod utils;
 /// compatibility checks.
 pub const MDBOOK_VERSION: &str = env!("CARGO_PKG_VERSION");
 
-pub use book::BookItem;
-pub use book::MDBook;
-pub use config::Config;
-pub use renderer::Renderer;
+pub use crate::book::BookItem;
+pub use crate::book::MDBook;
+pub use crate::config::Config;
+pub use crate::renderer::Renderer;
 
 /// The error types used through out this crate.
 pub mod errors {

src/main.rs

@@ -1,12 +1,7 @@
-extern crate chrono;
 #[macro_use]
 extern crate clap;
-extern crate env_logger;
-extern crate error_chain;
 #[macro_use]
 extern crate log;
-extern crate mdbook;
-extern crate open;
 
 use chrono::Local;
 use clap::{App, AppSettings, ArgMatches};

src/preprocess/cmd.rs

@@ -1,7 +1,6 @@
 use super::{Preprocessor, PreprocessorContext};
-use book::Book;
-use errors::*;
-use serde_json;
+use crate::book::Book;
+use crate::errors::*;
 use shlex::Shlex;
 use std::io::{self, Read, Write};
 use std::process::{Child, Command, Stdio};
@@ -168,8 +167,8 @@ impl Preprocessor for CmdPreprocessor {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use crate::MDBook;
     use std::path::Path;
-    use MDBook;
 
     fn book_example() -> MDBook {
         let example = Path::new(env!("CARGO_MANIFEST_DIR")).join("book-example");

src/preprocess/index.rs

@@ -1,10 +1,10 @@
 use regex::Regex;
 use std::path::Path;
 
-use errors::*;
+use crate::errors::*;
 
 use super::{Preprocessor, PreprocessorContext};
-use book::{Book, BookItem};
+use crate::book::{Book, BookItem};
 
 /// A preprocessor for converting file name `README.md` to `index.md` since
 /// `README.md` is the de facto index file in markdown-based documentation.

src/preprocess/links.rs

@@ -1,12 +1,12 @@
-use errors::*;
+use crate::errors::*;
+use crate::utils::fs::file_to_string;
+use crate::utils::take_lines;
 use regex::{CaptureMatches, Captures, Regex};
 use std::ops::{Range, RangeFrom, RangeFull, RangeTo};
 use std::path::{Path, PathBuf};
-use utils::fs::file_to_string;
-use utils::take_lines;
 
 use super::{Preprocessor, PreprocessorContext};
-use book::{Book, BookItem};
+use crate::book::{Book, BookItem};
 
 const ESCAPE_CHAR: char = '\\';
 const MAX_LINK_NESTED_DEPTH: usize = 10;

src/preprocess/mod.rs

@@ -8,9 +8,9 @@ mod cmd;
 mod index;
 mod links;
 
-use book::Book;
-use config::Config;
-use errors::*;
+use crate::book::Book;
+use crate::config::Config;
+use crate::errors::*;
 
 use std::path::PathBuf;
 
@@ -37,7 +37,7 @@ impl PreprocessorContext {
             root,
             config,
             renderer,
-            mdbook_version: ::MDBOOK_VERSION.to_string(),
+            mdbook_version: crate::MDBOOK_VERSION.to_string(),
             __non_exhaustive: (),
         }
     }