1 // Copyright 2016 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
16 use std::path::{Path, PathBuf};
18 use clap::{App, ArgMatches, SubCommand, AppSettings};
21 use mdbook::errors::Result;
24 let d_message = "-d, --dest-dir=[dest-dir]
25 'The output directory for your book{n}(Defaults to ./book when omitted)'";
26 let dir_message = "[dir]
27 'A directory for your book{n}(Defaults to Current Directory when omitted)'";
29 let matches = App::new("rustbook")
30 .about("Build a book with mdBook")
31 .author("Steve Klabnik <steve@steveklabnik.com>")
32 .version(&*format!("v{}", crate_version!()))
33 .setting(AppSettings::SubcommandRequired)
34 .subcommand(SubCommand::with_name("build")
35 .about("Build the book from the markdown files")
36 .arg_from_usage(d_message)
37 .arg_from_usage(dir_message))
40 // Check which subcomamnd the user ran...
41 let res = match matches.subcommand() {
42 ("build", Some(sub_matches)) => build(sub_matches),
43 (_, _) => unreachable!(),
47 eprintln!("Error: {}", e);
49 for cause in e.iter().skip(1) {
50 eprintln!("\tCaused By: {}", cause);
53 ::std::process::exit(101);
56 // Build command implementation
57 pub fn build(args: &ArgMatches) -> Result<()> {
58 let book_dir = get_book_dir(args);
59 let mut book = MDBook::load(&book_dir)?;
61 // Set this to allow us to catch bugs in advance.
62 book.config.build.create_missing = false;
64 if let Some(dest_dir) = args.value_of("dest-dir") {
65 book.config.build.build_dir = PathBuf::from(dest_dir);
73 fn get_book_dir(args: &ArgMatches) -> PathBuf {
74 if let Some(dir) = args.value_of("dir") {
75 // Check if path is relative from current dir, or absolute...
76 let p = Path::new(dir);
78 env::current_dir().unwrap().join(dir)
83 env::current_dir().unwrap()