Read the org files inside the writer directory.

Cargo.lock

@@ -514,4 +514,5 @@ dependencies = [
  "serde",
  "tokio",
  "toml",
+ "walkdir",
 ]

Cargo.toml

@@ -14,3 +14,4 @@ serde = { version = "1.0.189", default-features = false, features = ["std", "der
 tokio = { version = "1.30.0", default-features = false, features = ["rt", "rt-multi-thread", "fs", "io-util"] }
 # display, parse | indexmap, preserve_order
 toml = "0.8.2"
+walkdir = "2.4.0"

src/command/build/runner.rs

@@ -1,7 +1,42 @@
+use std::path::Path;
+use std::path::PathBuf;
+
 use crate::cli::parameters::BuildArgs;
 use crate::config::Config;
+use tokio::task::JoinHandle;
+use walkdir::WalkDir;
 
 pub(crate) async fn build_site(args: BuildArgs) -> Result<(), Box<dyn std::error::Error>> {
-    let _config = Config::load_from_file(args.config).await?;
+    let config = Config::load_from_file(args.config).await?;
+    let org_files = get_org_files(config.get_root_directory())?;
+
     Ok(())
 }
+
+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> {
+    let org_files = WalkDir::new(root_dir)
+        .into_iter()
+        .filter(|e| match e {
+            Ok(dir_entry) => {
+                dir_entry.file_type().is_file()
+                    && Path::new(dir_entry.file_name())
+                        .extension()
+                        .map(|ext| ext.to_ascii_lowercase() == "org")
+                        .unwrap_or(false)
+            }
+            Err(_) => true,
+        })
+        .collect::<Result<Vec<_>, _>>()?;
+    let org_files = org_files
+        .into_iter()
+        .map(walkdir::DirEntry::into_path)
+        .map(|path| tokio::spawn(read_file(path)));
+    Ok(org_files)
+}

src/config/full.rs

@@ -44,4 +44,11 @@ impl Config {
             .await?;
         Ok(())
     }
+
+    pub(crate) fn get_root_directory(&self) -> &Path {
+        &self
+            .config_path
+            .parent()
+            .expect("Config file must exist inside a directory.")
+    }
 }