Extract git commands to own module

src/git.rs

@@ -0,0 +1,79 @@
+//! Execute git binary commands.
+
+use std::{
+    error, fmt, io,
+    path::Path,
+    process::{Command, Output},
+};
+
+use log::trace;
+
+#[derive(Debug)]
+pub enum Error {
+    Io(io::Error),
+    Command(Command, Output),
+}
+
+impl fmt::Display for Error {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Error::Io(e) => e.fmt(f),
+            Error::Command(command, output) => {
+                write!(f, "Command exited with {}", output.status)?;
+                write!(f, "COMMAND: {command:?}")?;
+                if !output.stdout.is_empty() {
+                    let stdout = String::from_utf8_lossy(&output.stdout);
+                    write!(f, "STDOUT:\n{}", stdout.trim_end())?;
+                }
+                if !output.stderr.is_empty() {
+                    let stderr = String::from_utf8_lossy(&output.stderr);
+                    write!(f, "STDERR:\n{}", stderr.trim_end())?;
+                }
+                Ok(())
+            }
+        }
+    }
+}
+
+impl error::Error for Error {}
+
+impl From<io::Error> for Error {
+    fn from(value: io::Error) -> Self {
+        Self::Io(value)
+    }
+}
+
+fn run(mut command: Command) -> Result<Output, Error> {
+    let output = command.output()?;
+    if output.status.success() {
+        trace!("Command exited with {}", output.status);
+        trace!("COMMAND: {command:?}");
+        if !output.stdout.is_empty() {
+            let stdout = String::from_utf8_lossy(&output.stdout);
+            trace!("STDOUT:\n{}", stdout.trim_end());
+        }
+        if !output.stderr.is_empty() {
+            let stderr = String::from_utf8_lossy(&output.stderr);
+            trace!("STDERR:\n{}", stderr.trim_end());
+        }
+        Ok(output)
+    } else {
+        Err(Error::Command(command, output))
+    }
+}
+
+pub fn fetch(path: &Path, url: &str, refspecs: &[String]) -> Result<(), Error> {
+    let mut command = Command::new("git");
+    command
+        .arg("fetch")
+        .arg("-C")
+        .arg(path)
+        .arg("--prune")
+        .arg("--")
+        .arg(url);
+    for refspec in refspecs {
+        command.arg(refspec);
+    }
+    run(command)?;
+    Ok(())
+}

src/main.rs

@@ -4,6 +4,7 @@
 
 mod args;
 mod config;
+mod git;
 mod id;
 mod server;
 mod shared;

src/server/recurring/fetch.rs

@@ -1,51 +1,17 @@
 //! Update repo refs using the `git` binary.
 
-use std::process::Command;
-
-use gix::bstr::ByteSlice;
 use log::{info, warn};
 
-use crate::{config::ServerConfig, server::Repo, somehow};
-
-fn fetch(repo: Repo, url: &str, refspecs: &[String]) -> somehow::Result<()> {
-    info!("Fetching refs from {url}");
-
-    let mut command = Command::new("git");
-    command
-        .arg("fetch")
-        .arg("-C")
-        .arg(repo.0.path())
-        .arg("--prune")
-        .arg("--")
-        .arg(url);
-    for refspec in refspecs {
-        command.arg(refspec);
-    }
-
-    let output = command.output()?;
-    if output.status.success() {
-    } else {
-        warn!(
-            "Error fetching refs:\n\
-            {command:?} exited with code {}\n\
-            STDOUT:\n{}\n\
-            STDERR:\n{}",
-            output.status,
-            output.stdout.to_str_lossy(),
-            output.stderr.to_str_lossy()
-        );
-    }
-
-    Ok(())
-}
+use crate::{config::ServerConfig, git, server::Repo, somehow};
 
 async fn inner(repo: Repo, url: &'static str, refspecs: &'static [String]) -> somehow::Result<()> {
-    tokio::task::spawn_blocking(move || fetch(repo, url, refspecs)).await??;
+    tokio::task::spawn_blocking(move || git::fetch(repo.0.path(), url, refspecs)).await??;
     Ok(())
 }
 
 pub(super) async fn update(config: &'static ServerConfig, repo: Repo) {
     if let Some(url) = &config.repo_fetch_url {
+        info!("Fetching refs from {url}");
         if let Err(e) = inner(repo, url, &config.repo_fetch_refspecs).await {
             warn!("Error fetching refs:\n{e:?}");
         }

src/server/recurring/queue.rs

@@ -5,7 +5,6 @@ use time::OffsetDateTime;
 use crate::somehow;
 
 async fn inner(db: &SqlitePool) -> somehow::Result<()> {
-    debug!("Updating queue");
     let mut tx = db.begin().await?;
     let conn = tx.acquire().await?;
 
@@ -40,6 +39,7 @@ async fn inner(db: &SqlitePool) -> somehow::Result<()> {
 }
 
 pub(super) async fn update(db: &SqlitePool) {
+    debug!("Updating queue");
     if let Err(e) = inner(db).await {
         warn!("Error updating queue:\n{e:?}");
     }

src/server/recurring/repo.rs

@@ -235,7 +235,6 @@ async fn update_commit_tracked_status(conn: &mut SqliteConnection) -> somehow::R
 }
 
 pub async fn inner(db: &SqlitePool, repo: Repo) -> somehow::Result<()> {
-    debug!("Updating repo data");
     let thread_local_repo = repo.0.to_thread_local();
     let mut tx = db.begin().await?;
     let conn = tx.acquire().await?;
@@ -290,6 +289,7 @@ pub async fn inner(db: &SqlitePool, repo: Repo) -> somehow::Result<()> {
 }
 
 pub(super) async fn update(db: &SqlitePool, repo: Repo) {
+    debug!("Updating repo data");
     if let Err(e) = inner(db, repo).await {
         warn!("Error updating repo data:\n{e:?}");
     }