3 files changed, 25 insertions, 4 deletions
diff --git a/src/git.rs b/src/git.rs
index d83d2b6..7ad919f 100644
--- a/src/git.rs
+++ b/src/git.rs
@@ -1,6 +1,15 @@
+use thiserror;
+
 use std::path::Path;
 
 
+#[derive(Debug, thiserror::Error)]
+pub enum Error {
+    #[error("git error")]
+    Git(#[from] git2::Error),
+}
+
+
 /// Mirror a repository.
 ///
 /// Works like:
@@ -12,7 +21,7 @@ pub fn mirror<P: AsRef<Path>>(
     url: &str,
     path: P,
     description: Option<&str>,
-) -> Result<(), Box<dyn std::error::Error>> {
+) -> Result<(), Error> {
     let mut repo_init_options = git2::RepositoryInitOptions::new();
     repo_init_options.bare(true);
 
@@ -51,7 +60,7 @@ pub fn mirror<P: AsRef<Path>>(
 /// ```
 pub fn update<P: AsRef<Path>>(
     path: P,
-) -> Result<(), Box<dyn std::error::Error>> {
+) -> Result<(), Error> {
     let repo = git2::Repository::open_bare(path)?;
 
     for remote_opt in &repo.remotes()? {
diff --git a/src/github.rs b/src/github.rs
index 8c853da..0b20abd 100644
--- a/src/github.rs
+++ b/src/github.rs
@@ -1,5 +1,6 @@
 use reqwest::blocking::ClientBuilder;
 use serde::Deserialize;
+use thiserror;
 
 
 const USER_AGENT: &'static str = concat!(
@@ -9,6 +10,16 @@ const USER_AGENT: &'static str = concat!(
 );
 
 
+#[derive(Debug, thiserror::Error)]
+pub enum Error {
+    #[error("request error")]
+    Http(#[from] reqwest::Error),
+
+    #[error("request header error")]
+    Header(#[from] reqwest::header::InvalidHeaderValue),
+}
+
+
 #[derive(Debug, Deserialize)]
 pub struct Repo {
     pub id: i64,
@@ -21,7 +32,7 @@ pub struct Repo {
 }
 
 
-pub fn fetch_repos() -> Result<Vec<Repo>, Box<dyn std::error::Error>> {
+pub fn fetch_repos() -> Result<Vec<Repo>, Error> {
     let mut headers = reqwest::header::HeaderMap::new();
     headers.insert("Accept", "application/vnd.github.v3+json".parse()?);
 
diff --git a/src/main.rs b/src/main.rs
index 162c743..ffda552 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,3 +1,4 @@
+use anyhow;
 use sqlx;
 use tokio;
 
@@ -80,7 +81,7 @@ async fn main() {
 }
 
 
-fn mirror(repo: &github::Repo) -> Result<(), Box<dyn std::error::Error>> {
+fn mirror(repo: &github::Repo) -> anyhow::Result<()> {
     // mirror database
     // update description
     // copy cgitrc