Switch to using CustomError because a boxed StdError is not Send.

src/blog_post/definition.rs

@@ -1,5 +1,13 @@
+use std::path::Path;
+use std::path::PathBuf;
+
+use tokio::task::JoinHandle;
+use walkdir::WalkDir;
+
+use crate::error::CustomError;
+
 #[derive(Debug)]
-struct BlogPost {
+pub(crate) struct BlogPost {
     id: String,
 }
 
@@ -7,11 +15,8 @@ impl BlogPost {
     pub(crate) async fn load_blog_post<P: AsRef<Path>, R: AsRef<Path>>(
         root_dir: R,
         post_dir: P,
-    ) -> Result<BlogPost, Box<dyn std::error::Error>> {
-        async fn inner(
-            root_dir: &Path,
-            post_dir: &Path,
-        ) -> Result<BlogPost, Box<dyn std::error::Error>> {
+    ) -> Result<BlogPost, CustomError> {
+        async fn inner(root_dir: &Path, post_dir: &Path) -> Result<BlogPost, CustomError> {
             let org_files = {
                 let mut ret = Vec::new();
                 let org_files_iter = get_org_files(post_dir)?;
@@ -23,7 +28,8 @@ impl BlogPost {
             let parsed_org_files = {
                 let mut ret = Vec::new();
                 for (path, contents) in org_files.iter() {
-                    let parsed = organic::parser::parse_file(contents.as_str(), Some(path))?;
+                    let parsed = organic::parser::parse_file(contents.as_str(), Some(path))
+                        .map_err(|_| CustomError::Static("Failed to parse org-mode document."))?;
                     ret.push((path, contents, parsed));
                 }
                 ret
@@ -37,6 +43,11 @@ impl BlogPost {
     }
 }
 
+async fn read_file(path: PathBuf) -> std::io::Result<(PathBuf, String)> {
+    let contents = tokio::fs::read_to_string(&path).await?;
+    Ok((path, contents))
+}
+
 fn get_org_files<P: AsRef<Path>>(
     root_dir: P,
 ) -> Result<impl Iterator<Item = JoinHandle<std::io::Result<(PathBuf, String)>>>, walkdir::Error> {

src/blog_post/mod.rs

@@ -0,0 +1,2 @@
+mod definition;
+pub(crate) use definition::BlogPost;