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use std::env; use std::ffi::OsString; use std::path::{Path, PathBuf}; use clap::{App, SubCommand, AppSettings}; use serde::Serialize; pub mod project; pub mod default_project; pub mod music; pub mod parser; pub mod book; pub mod render; pub mod watch; pub mod cli; pub mod util; pub mod error; use crate::project::Project; use crate::watch::{Watch, WatchEvent}; use crate::error::*; #[derive(Serialize, Clone, Debug)] pub struct ProgramMeta { name: &'static str, version: &'static str, description: &'static str, homepage: &'static str, authors: &'static str, } pub const PROGRAM_META: ProgramMeta = ProgramMeta { name: env!("CARGO_PKG_NAME"), version: env!("CARGO_PKG_VERSION"), description: env!("CARGO_PKG_DESCRIPTION"), homepage: env!("CARGO_PKG_HOMEPAGE"), authors: env!("CARGO_PKG_AUTHORS"), }; fn get_cwd() -> Result<PathBuf> { let cwd = env::current_dir().context("Could not read current directory")?; ensure!( cwd.as_path().to_str().is_some(), format!("Path is not valid unicode: '{}'", cwd.display()) ); Ok(cwd) } pub fn bard_init() -> Result<()> { let cwd = get_cwd()?; cli::status("Initialize", &format!("new project at {}", cwd.display())); Project::init(&cwd).context("Could not initialize a new project")?; cli::success("Done!"); Ok(()) } pub fn bard_make_at(path: &Path) -> Result<Project> { Project::new(path) .and_then(|project| { project.render()?; Ok(project) }) .context("Could not make project") } pub fn bard_make() -> Result<Project> { let cwd = get_cwd()?; let project = bard_make_at(&cwd)?; cli::success("Done!"); Ok(project) } pub fn bard_watch() -> Result<()> { let cwd = get_cwd()?; let (mut watch, cancellation) = Watch::new()?; let _ = ctrlc::set_handler(move || { cancellation.cancel(); }); loop { let project = bard_make_at(&cwd)?; eprintln!(""); cli::status("Watching", "for changes in the project ..."); match watch.watch(&project)? { WatchEvent::Path(path) => { cli::status( "", &format!("Modification detected at '{}' ...", path.display()), ); } WatchEvent::Pathless => cli::status("", "Modification detected ..."), WatchEvent::Cancel => break, } } Ok(()) } pub fn bard(args: &[OsString]) -> Result<()> { let args = App::new("bard") .version("0.3") .author("Vojtech Kral <vojtech@kral.hk>") .about("bard: Songbook compiler") .setting(AppSettings::VersionlessSubcommands) .setting(AppSettings::ArgRequiredElseHelp) .subcommand( SubCommand::with_name("init") .about("Initialize and empty project with default settings"), ) .subcommand( SubCommand::with_name("make") .about("Process the current project and generate output files"), ) .subcommand(SubCommand::with_name("watch").about( "Watch the current project and its input files for changes, and re-make the project \ each time there's a change", )) .get_matches_from(args.iter()); if let Some(_args) = args.subcommand_matches("init") { bard_init()?; } else if let Some(_args) = args.subcommand_matches("make") { bard_make()?; } else if let Some(_args) = args.subcommand_matches("watch") { bard_watch()?; } Ok(()) }