radicle-heartwood-lfs/radicle-cli/src/commands/fetch.rs

144 lines
4.0 KiB
Rust

#![allow(clippy::or_fun_call)]
use std::ffi::OsString;
use std::path::Path;
use anyhow::{anyhow, Context};
use radicle::identity::doc::Id;
use radicle::node;
use radicle::node::{FetchResult, FetchResults, Handle as _, Node};
use radicle::prelude::*;
use crate::terminal as term;
use crate::terminal::args::{Args, Error, Help};
pub const HELP: Help = Help {
name: "fetch",
description: "Fetch repository refs from the network",
version: env!("CARGO_PKG_VERSION"),
usage: r#"
Usage
rad fetch <rid> [<option>...]
By default, this command will fetch from all connected seeds.
To instead specify a seed, use the `--seed <nid>` option.
Options
--seed <nid> Fetch seed a specific connected peer
--force, -f Fetch even if the repository isn't tracked
--help Print help
"#,
};
#[derive(Debug)]
pub struct Options {
rid: Option<Id>,
seed: Option<NodeId>,
#[allow(dead_code)]
force: bool,
}
impl Args for Options {
fn from_args(args: Vec<OsString>) -> anyhow::Result<(Self, Vec<OsString>)> {
use lexopt::prelude::*;
let mut parser = lexopt::Parser::from_args(args);
let mut rid: Option<Id> = None;
let mut seed: Option<NodeId> = None;
let mut force = false;
while let Some(arg) = parser.next()? {
match arg {
Long("force") | Short('f') => {
force = true;
}
Long("seed") => {
let val = parser.value()?;
let val = term::args::nid(&val)?;
seed = Some(val);
}
Long("help") => {
return Err(Error::Help.into());
}
Value(val) if rid.is_none() => {
let val = term::args::rid(&val)?;
rid = Some(val);
}
_ => return Err(anyhow!(arg.unexpected())),
}
}
Ok((Options { rid, seed, force }, vec![]))
}
}
pub fn run(options: Options, ctx: impl term::Context) -> anyhow::Result<()> {
let profile = ctx.profile()?;
let mut node = radicle::Node::new(profile.socket());
let rid = match options.rid {
Some(rid) => rid,
None => {
let (_, rid) = radicle::rad::repo(Path::new("."))
.context("Current directory is not a Radicle project")?;
rid
}
};
// TODO(cloudhead): Check that we're tracking the repo, and if not, and `--force` is not
// used, abort with error.
let results = if let Some(seed) = options.seed {
let result = fetch_from(rid, &seed, &mut node)?;
FetchResults::from(vec![(seed, result)])
} else {
fetch(rid, &mut node)?
};
let success = results.success().count();
let failed = results.failed().count();
if success == 0 {
term::error(format!("Failed to fetch repository from {failed} seed(s)"));
} else {
term::success!("Fetched repository from {success} seed(s)");
}
Ok(())
}
pub fn fetch(rid: Id, node: &mut Node) -> Result<FetchResults, node::Error> {
// Get seeds. This consults the local routing table only.
let mut seeds = node.seeds(rid)?;
let mut results = FetchResults::default();
if seeds.has_connections() {
// Fetch from all seeds.
for seed in seeds.connected() {
let result = fetch_from(rid, seed, node)?;
results.push(*seed, result);
}
}
Ok(results)
}
pub fn fetch_from(rid: Id, seed: &NodeId, node: &mut Node) -> Result<FetchResult, node::Error> {
let spinner = term::spinner(format!(
"Fetching {} from {}..",
term::format::tertiary(rid),
term::format::tertiary(term::format::node(seed))
));
let result = node.fetch(rid, *seed)?;
match &result {
FetchResult::Success { .. } => {
spinner.finish();
}
FetchResult::Failed { reason } => {
spinner.error(reason);
}
}
Ok(result)
}