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use crate::get_book_dir;
use clap::{arg, ArgMatches, Command as ClapCommand};
use mdbook::config;
use mdbook::errors::Result;
use mdbook::MDBook;
use std::io;
use std::io::Write;
use std::process::Command;
// Create clap subcommand arguments
pub fn make_subcommand() -> ClapCommand {
ClapCommand::new("init")
.about("Creates the boilerplate structure and files for a new book")
.arg(
arg!([dir]
"Directory to create the book in\n\
(Defaults to the current directory when omitted)"
)
.value_parser(clap::value_parser!(std::path::PathBuf)),
)
.arg(arg!(--theme "Copies the default theme into your source folder"))
.arg(arg!(--force "Skips confirmation prompts"))
.arg(arg!(--title <title> "Sets the book title"))
.arg(
arg!(--ignore <ignore> "Creates a VCS ignore file (i.e. .gitignore)")
.value_parser(["none", "git"]),
)
}
// Init command implementation
pub fn execute(args: &ArgMatches) -> Result<()> {
let book_dir = get_book_dir(args);
let mut builder = MDBook::init(&book_dir);
let mut config = config::Config::default();
// If flag `--theme` is present, copy theme to src
if args.get_flag("theme") {
let theme_dir = book_dir.join("theme");
println!();
println!("Copying the default theme to {}", theme_dir.display());
// Skip this if `--force` is present
if !args.get_flag("force") && theme_dir.exists() {
println!("This could potentially overwrite files already present in that directory.");
print!("\nAre you sure you want to continue? (y/n) ");
// Read answer from user and exit if it's not 'yes'
if confirm() {
builder.copy_theme(true);
}
} else {
builder.copy_theme(true);
}
}
if let Some(ignore) = args.get_one::<String>("ignore").map(|s| s.as_str()) {
match ignore {
"git" => builder.create_gitignore(true),
_ => builder.create_gitignore(false),
};
} else if !args.get_flag("force") {
println!("\nDo you want a .gitignore to be created? (y/n)");
if confirm() {
builder.create_gitignore(true);
}
}
config.book.title = if args.contains_id("title") {
args.get_one::<String>("title").map(String::from)
} else if args.get_flag("force") {
None
} else {
request_book_title()
};
if let Some(author) = get_author_name() {
debug!("Obtained user name from gitconfig: {:?}", author);
config.book.authors.push(author);
builder.with_config(config);
}
builder.build()?;
println!("\nAll done, no errors...");
Ok(())
}
/// Obtains author name from git config file by running the `git config` command.
fn get_author_name() -> Option<String> {
let output = Command::new("git")
.args(["config", "--get", "user.name"])
.output()
.ok()?;
if output.status.success() {
Some(String::from_utf8_lossy(&output.stdout).trim().to_owned())
} else {
None
}
}
/// Request book title from user and return if provided.
fn request_book_title() -> Option<String> {
println!("What title would you like to give the book? ");
io::stdout().flush().unwrap();
let mut resp = String::new();
io::stdin().read_line(&mut resp).unwrap();
let resp = resp.trim();
if resp.is_empty() {
None
} else {
Some(resp.into())
}
}
// Simple function for user confirmation
fn confirm() -> bool {
io::stdout().flush().unwrap();
let mut s = String::new();
io::stdin().read_line(&mut s).ok();
matches!(s.trim(), "Y" | "y" | "yes" | "Yes")
}
|
