Mathieu David
commit
598e0b1eef
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@ -4,7 +4,7 @@ version = "0.0.1"
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authors = ["Mathieu David <mathieudavid@mathieudavid.org>"]
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[dependencies]
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getopts = "*"
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clap = "*"
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handlebars = "*"
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rustc-serialize = "*"
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pulldown-cmark = "*"
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228
src/main.rs
228
src/main.rs
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@ -1,178 +1,76 @@
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extern crate mdbook;
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extern crate getopts;
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#[macro_use]
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extern crate clap;
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use std::env;
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use std::error::Error;
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use std::io::{self, Write};
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use std::path::{Path, PathBuf};
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use clap::{App, ArgMatches, SubCommand};
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use mdbook::MDBook;
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const NAME: &'static str = "mdbook";
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const VERSION: &'static str = "0.0.1";
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#[derive(Clone)]
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struct Subcommand {
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name: &'static str,
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help: &'static str,
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exec: fn(args: Vec<String>)
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}
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// All subcommands
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static SUBCOMMANDS: &'static [Subcommand] = &[
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Subcommand{ name: "init", help: " Create boilerplate structure and files in the directory", exec: init },
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Subcommand{ name: "build", help: "Build the book from the markdown files", exec: build },
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Subcommand{ name: "watch", help: "Watch the files for changes", exec: watch },
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];
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fn main() {
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let args: Vec<String> = env::args().collect();
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let mut subcommand: Option<Subcommand> = None;
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// Create a list of valid arguments and sub-commands
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let matches = App::new(NAME)
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.about("Create a book in form of a static website from markdown files")
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.author("Mathieu David <mathieudavid@mathieudavid.org>")
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// Get the version from our Cargo.toml using clap's crate_version!() macro
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.version(&*format!("v{}", crate_version!()))
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.subcommand_required(true)
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.after_help("For more information about a specific command, try `mdbook <command> --help`")
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.subcommand(SubCommand::with_name("init")
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.about("Create boilerplate structure and files in the directory")
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// the {n} denotes a newline which will properly aligned in all help
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// messages
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.arg_from_usage("[dir] 'A directory for your book{n}(Defaults to Current Directory when ommitted)'"))
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.subcommand(SubCommand::with_name("build")
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.about("Build the book from the markdown files")
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.arg_from_usage("[dir] 'A directory for your book{n}(Defaults to Current Directory when ommitted)'"))
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.subcommand(SubCommand::with_name("watch")
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.about("Watch the files for changes"))
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.get_matches();
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if args.len() > 1 {
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// Check if one of the subcommands match
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for command in SUBCOMMANDS {
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if args[1] == command.name {
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subcommand = Some(command.clone());
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}
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// Check which subcomamnd the user ran...
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let res = match matches.subcommand() {
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("init", Some(sub_matches)) => init(sub_matches),
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("build", Some(sub_matches)) => build(sub_matches),
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("watch", _) => unimplemented!(),
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(_, _) => unreachable!()
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};
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if let Err(e) = res {
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writeln!(&mut io::stderr(), "Error: {}", e).ok();
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}
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}
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fn init(args: &ArgMatches) -> Result<(), Box<Error>> {
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let book_dir = get_book_dir(args);
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let book = MDBook::new(&book_dir);
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book.init()
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}
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fn build(args: &ArgMatches) -> Result<(), Box<Error>> {
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let book_dir = get_book_dir(args);
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let mut book = MDBook::new(&book_dir);
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book.build()
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}
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fn get_book_dir(args: &ArgMatches) -> PathBuf {
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if let Some(dir) = args.value_of("dir") {
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// Check if path is relative from current dir, or absolute...
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let p = Path::new(dir);
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if p.is_relative() {
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env::current_dir().unwrap().join(dir)
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} else {
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p.to_path_buf()
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}
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}
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match subcommand {
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None => no_subcommand(args),
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Some(command) => (command.exec)(args),
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}
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}
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fn no_subcommand(args: Vec<String>) {
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let mut opts = getopts::Options::new();
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opts.optflag("h", "help", "display this help and exit");
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opts.optflag("", "version", "output version information and exit");
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let usage = opts.usage("Create a book in form of a static website from markdown files");
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let matches = match opts.parse(&args[1..]) {
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Ok(m) => m,
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Err(e) => {
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println!("{}", e);
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println!("Try `{} --help` for more information", NAME);
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return;
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},
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};
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if matches.opt_present("version") {
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println!("{} {}", NAME, VERSION);
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} else {
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if !matches.opt_present("version") && args.len() > 0 {
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print!("Try again, `{0}", NAME);
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for index in 1..args.len() {
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print!(" {}", args[index]);
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}
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print!("` is not a valid command... ");
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println!("\n");
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}
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help(&usage);
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}
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}
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fn help(usage: &String) {
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println!("{0} {1} \n", NAME, VERSION);
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println!("Usage:");
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println!(" {0} <command> [<args>...]\n {0} [options]\n", NAME);
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println!("{0}", usage);
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println!("Commands:");
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for subcommand in SUBCOMMANDS {
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println!(" {0} {1}", subcommand.name, subcommand.help);
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}
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println!("");
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println!("For more information about a specific command, try `mdbook <command> --help`");
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}
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fn init(args: Vec<String>) {
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let mut opts = getopts::Options::new();
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opts.optflag("h", "help", "display this help and exit");
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let usage = opts.usage("Creates a skeleton structure and some boilerplate files to start with");
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let matches = match opts.parse(&args[1..]) {
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Ok(m) => m,
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Err(e) => {
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println!("{}", e);
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println!("Try `{} --help` for more information", NAME);
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return;
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},
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};
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if matches.opt_present("help") {
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println!("{}", usage);
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return;
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}
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let dir = if args.len() <= 2 {
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std::env::current_dir().unwrap()
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} else {
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std::env::current_dir().unwrap().join(&args[2])
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};
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let book = MDBook::new(&dir);
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if let Err(e) = book.init() {
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println!("Error: {}", e);
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}
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}
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fn build(args: Vec<String>) {
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let mut opts = getopts::Options::new();
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opts.optflag("h", "help", "display this help and exit");
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let usage = opts.usage("Build the book from the markdown files");
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let matches = match opts.parse(&args[1..]) {
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Ok(m) => m,
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Err(e) => {
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println!("{}", e);
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println!("Try `{} --help` for more information", NAME);
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return;
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},
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};
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if matches.opt_present("help") {
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println!("{}", usage);
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}
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let dir = if args.len() <= 2 {
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std::env::current_dir().unwrap()
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} else {
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std::env::current_dir().unwrap().join(&args[2])
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};
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let mut book = MDBook::new(&dir);
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if let Err(e) = book.build() {
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println!("Error: {}", e);
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}
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}
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fn watch(args: Vec<String>) {
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let mut opts = getopts::Options::new();
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opts.optflag("h", "help", "display this help and exit");
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let usage = opts.usage("Watch the files for changes");
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let matches = match opts.parse(&args[1..]) {
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Ok(m) => m,
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Err(e) => {
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println!("{}", e);
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println!("Try `{} --help` for more information", NAME);
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return;
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},
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};
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if matches.opt_present("help") {
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println!("{}", usage);
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env::current_dir().unwrap()
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}
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}
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