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/*
* libgit2 "clone" example
*
* Written by the libgit2 contributors
*
* To the extent possible under law, the author(s) have dedicated all copyright
* and related and neighboring rights to this software to the public domain
* worldwide. This software is distributed without any warranty.
*
* You should have received a copy of the CC0 Public Domain Dedication along
* with this software. If not, see
* <http://creativecommons.org/publicdomain/zero/1.0/>.
*/
#![deny(warnings)]
use git2::build::{CheckoutBuilder, RepoBuilder};
use git2::{FetchOptions, Progress, RemoteCallbacks};
use std::cell::RefCell;
use std::io::{self, Write};
use std::path::{Path, PathBuf};
use structopt::StructOpt;
#[derive(StructOpt)]
struct Args {
#[structopt(name = "url")]
arg_url: String,
#[structopt(name = "path")]
arg_path: String,
}
struct State {
progress: Option<Progress<'static>>,
total: usize,
current: usize,
path: Option<PathBuf>,
newline: bool,
}
fn print(state: &mut State) {
let stats = state.progress.as_ref().unwrap();
let network_pct = (100 * stats.received_objects()) / stats.total_objects();
let index_pct = (100 * stats.indexed_objects()) / stats.total_objects();
let co_pct = if state.total > 0 {
(100 * state.current) / state.total
} else {
0
};
let kbytes = stats.received_bytes() / 1024;
if stats.received_objects() == stats.total_objects() {
if !state.newline {
println!();
state.newline = true;
}
print!(
"Resolving deltas {}/{}\r",
stats.indexed_deltas(),
stats.total_deltas()
);
} else {
print!(
"net {:3}% ({:4} kb, {:5}/{:5}) / idx {:3}% ({:5}/{:5}) \
/ chk {:3}% ({:4}/{:4}) {}\r",
network_pct,
kbytes,
stats.received_objects(),
stats.total_objects(),
index_pct,
stats.indexed_objects(),
stats.total_objects(),
co_pct,
state.current,
state.total,
state
.path
.as_ref()
.map(|s| s.to_string_lossy().into_owned())
.unwrap_or_default()
)
}
io::stdout().flush().unwrap();
}
fn run(args: &Args) -> Result<(), git2::Error> {
let state = RefCell::new(State {
progress: None,
total: 0,
current: 0,
path: None,
newline: false,
});
let mut cb = RemoteCallbacks::new();
cb.transfer_progress(|stats| {
let mut state = state.borrow_mut();
state.progress = Some(stats.to_owned());
print(&mut *state);
true
});
let mut co = CheckoutBuilder::new();
co.progress(|path, cur, total| {
let mut state = state.borrow_mut();
state.path = path.map(|p| p.to_path_buf());
state.current = cur;
state.total = total;
print(&mut *state);
});
let mut fo = FetchOptions::new();
fo.remote_callbacks(cb);
RepoBuilder::new()
.fetch_options(fo)
.with_checkout(co)
.clone(&args.arg_url, Path::new(&args.arg_path))?;
println!();
Ok(())
}
fn main() {
let args = Args::from_args();
match run(&args) {
Ok(()) => {}
Err(e) => println!("error: {}", e),
}
}
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