Proof of concept

1 files changed, 28 insertions, 0 deletions

diff --git a/src/diff_thread/mod.rs b/src/diff_thread/mod.rs
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+// SPDX-License-Identifier: EUPL-1.2
+// SPDX-FileCopyrightText: 2021 Alyssa Ross <hi@alyssa.is>
+
+//! libgit2's diffing API gives us a callback whenever a file diff is ready, but
+//! that's not very convenient for Rust code, because it can't be used as an
+//! iterator.  So we run the diff in a thread, and send the diff information we need
+//! to the main thread over a channel.  When the main thread is processing diff
+//! information too slowly, we block the diff thread until the main thread catches
+//! up.
+
+mod server;
+mod client;
+
+pub use client::DiffThread;
+
+use std::path::PathBuf;
+
+use git2::{Repository, Diff, Delta};
+
+pub trait MakeDiff: Send + 'static {
+    fn make_diff(self, _: &Repository) -> Result<Diff, git2::Error>;
+}
+
+/// `new_path` isn't included because it's not currently used in git-girf.
+pub struct FileDiff {
+    pub status: Delta,
+    pub old_path: Option<PathBuf>,
+}