gix_protocol/fetch/arguments/
blocking_io.rs

1use std::io::Write;
2
3use gix_transport::{client, client::TransportV2Ext};
4
5use crate::{fetch::Arguments, Command};
6
7impl Arguments {
8    /// Send fetch arguments to the server, and indicate this is the end of negotiations only if `add_done_argument` is present.
9    pub fn send<'a, T: client::Transport + 'a>(
10        &mut self,
11        transport: &'a mut T,
12        add_done_argument: bool,
13    ) -> Result<Box<dyn client::ExtendedBufRead<'a> + Unpin + 'a>, client::Error> {
14        if self.haves.is_empty() {
15            assert!(add_done_argument, "If there are no haves, is_done must be true.");
16        }
17        match self.version {
18            gix_transport::Protocol::V0 | gix_transport::Protocol::V1 => {
19                let (on_into_read, retained_state) = self.prepare_v1(
20                    transport.connection_persists_across_multiple_requests(),
21                    add_done_argument,
22                )?;
23                let mut line_writer = transport.request(
24                    client::WriteMode::OneLfTerminatedLinePerWriteCall,
25                    on_into_read,
26                    self.trace,
27                )?;
28                let had_args = !self.args.is_empty();
29                for arg in self.args.drain(..) {
30                    line_writer.write_all(&arg)?;
31                }
32                if had_args {
33                    line_writer.write_message(client::MessageKind::Flush)?;
34                }
35                for line in self.haves.drain(..) {
36                    line_writer.write_all(&line)?;
37                }
38                if let Some(next_args) = retained_state {
39                    self.args = next_args;
40                }
41                Ok(line_writer.into_read()?)
42            }
43            gix_transport::Protocol::V2 => {
44                let retained_state = self.args.clone();
45                self.args.append(&mut self.haves);
46                if add_done_argument {
47                    self.args.push("done".into());
48                }
49                transport.invoke(
50                    Command::Fetch.as_str(),
51                    self.features.iter().filter(|(_, v)| v.is_some()).cloned(),
52                    Some(std::mem::replace(&mut self.args, retained_state).into_iter()),
53                    self.trace,
54                )
55            }
56        }
57    }
58}
gix_protocol/fetch/arguments/blocking_io.rs

gix_protocol/fetch/arguments/
blocking_io.rs
