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#![warn(rust_2018_idioms)]
use std::env;
use std::process;
use getopts::Options;
use git2::Repository;
use git_todo::Todos;
fn main() {
let args: Vec<String> = env::args().collect();
let mut opts = Options::new();
let matches = match opts.parse(&args[1..]) {
Ok(m) => m,
Err(e) => {
eprintln(&e);
process::exit(exitcode::NOINPUT);
},
};
let repo = match Repository::open(".") {
Ok(r) => r,
Err(e) => {
eprintln(&format!("unable to open repository: {}", e));
process::exit(exitcode::NOINPUT);
},
};
let todos = Todos { repo: &repo };
let tree = if matches.free.is_empty() {
match todos.master_tree() {
Ok(t) => t,
Err(e) => {
eprintln(&e);
process::exit(exitcode::USAGE);
},
}
} else {
// TODO: error if more than one ref given
let refname = &matches.free[0];
let object = match repo.revparse_single(&refname) {
Ok(object) => object,
Err(e) => {
eprintln(&e);
process::exit(exitcode::USAGE);
},
};
match object.peel_to_tree() {
Ok(t) => t,
Err(e) => {
eprintln(&e);
process::exit(exitcode::USAGE);
},
}
};
match todos.write_since(tree, &mut std::io::stdout()) {
Err(e) => {
eprintln(&e);
process::exit(exitcode::UNAVAILABLE);
},
_ => (),
};
}
/// Print to standard error with a program-specific prefix.
fn eprintln<D: std::fmt::Display>(error: &D) {
eprintln!("error: {}", error);
}
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