From cd6a2f78f127dbbfd04a4ea14bac415da9a1404d Mon Sep 17 00:00:00 2001
From: Eric Huss <eric@huss.org>
Date: Tue, 18 May 2021 20:47:25 -0700
Subject: [PATCH 1/2] Use git CLI to fetch a repo.

---
 src/git.rs | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/src/git.rs b/src/git.rs
index 5545142..443084c 100644
--- a/src/git.rs
+++ b/src/git.rs
@@ -7,7 +7,7 @@ use std::env;
 use std::path::Path;
 
 use chrono::{TimeZone, Utc};
-use failure::{bail, Error};
+use failure::{bail, Error, ResultExt};
 use git2::build::RepoBuilder;
 use git2::{Commit as Git2Commit, Repository};
 use log::debug;
@@ -34,13 +34,20 @@ fn lookup_rev<'rev>(repo: &'rev Repository, rev: &str) -> Result<Git2Commit<'rev
 
 fn get_repo() -> Result<Repository, Error> {
     fn open(repo: &Path) -> Result<Repository, Error> {
+        eprintln!("refreshing repository at {:?}", repo);
+        // This uses the CLI because libgit2 is quite slow to fetch a large repository.
+        let status = std::process::Command::new("git")
+            .arg("fetch")
+            .current_dir(repo)
+            .status()
+            .context(format!(
+                "expected `git` command-line executable to be installed"
+            ))?;
+        if !status.success() {
+            bail!("git fetch failed exit status {}", status);
+        }
         eprintln!("opening existing repository at {:?}", repo);
         let repo = Repository::open(repo)?;
-        {
-            eprintln!("refreshing repository");
-            let mut remote = repo.remote_anonymous(RUST_SRC_URL)?;
-            remote.fetch(&["master"], None, None)?;
-        }
         Ok(repo)
     }
 

From 0f9331913cf1d895942f674f7b722212d40c027b Mon Sep 17 00:00:00 2001
From: Eric Huss <eric@huss.org>
Date: Sat, 2 Oct 2021 15:30:30 -0700
Subject: [PATCH 2/2] Make sure to fetch the correct remote.

---
 src/git.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/git.rs b/src/git.rs
index 443084c..88af527 100644
--- a/src/git.rs
+++ b/src/git.rs
@@ -38,6 +38,7 @@ fn get_repo() -> Result<Repository, Error> {
         // This uses the CLI because libgit2 is quite slow to fetch a large repository.
         let status = std::process::Command::new("git")
             .arg("fetch")
+            .arg(RUST_SRC_URL)
             .current_dir(repo)
             .status()
             .context(format!(