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mdbook-toc/src/main.rs
2018-07-19 18:10:08 +02:00

65 lines
1.6 KiB
Rust

extern crate env_logger;
extern crate mdbook;
extern crate mdbook_toc;
extern crate clap;
use mdbook::MDBook;
use mdbook::errors::Result;
use mdbook_toc::Toc;
use clap::{App, ArgMatches};
use std::env;
use std::process;
use std::path::{Path, PathBuf};
fn get_book_dir(args: &ArgMatches) -> PathBuf {
if let Some(dir) = args.value_of("dir") {
// Check if path is relative from current dir, or absolute...
let p = Path::new(dir);
if p.is_relative() {
env::current_dir().unwrap().join(dir)
} else {
p.to_path_buf()
}
} else {
env::current_dir().expect("Unable to determine the current directory")
}
}
pub fn make_app<'a, 'b>() -> App<'a, 'b> {
App::new("mdbook-toc")
.about("Build the book from the markdown files with ToC support")
.arg_from_usage(
"-d, --dest-dir=[dest-dir] 'The output directory for your book{n}(Defaults to ./book \
when omitted)'",
)
.arg_from_usage(
"[dir] 'A directory for your book{n}(Defaults to Current Directory when omitted)'",
)
}
pub fn execute(args: &ArgMatches) -> Result<()> {
let book_dir = get_book_dir(args);
let mut book = MDBook::load(&book_dir)?;
if let Some(dest_dir) = args.value_of("dest-dir") {
book.config.build.build_dir = PathBuf::from(dest_dir);
}
book.with_preprecessor(Toc);
book.build()?;
Ok(())
}
fn main() {
env_logger::init();
let app = make_app();
let matches = app.get_matches();
if let Err(e) = execute(&matches) {
eprintln!("{}", e);
process::exit(1);
}
}