Mark the image files for copying.

src/context/dependency_manager.rs

@@ -3,6 +3,8 @@ use std::path::PathBuf;
 
 use crate::error::CustomError;
 
+use super::dependency::Dependency;
+
 pub(crate) type RefDependencyManager = std::sync::Arc<std::sync::Mutex<DependencyManager>>;
 
 #[derive(Debug)]
@@ -11,12 +13,15 @@ pub(crate) struct DependencyManager {
     ///
     /// The last entry is the current file being processed. This can be used for handling relative-path links.
     file_stack: Vec<PathBuf>,
+
+    dependencies: Vec<Dependency>,
 }
 
 impl DependencyManager {
     pub(crate) fn new() -> Self {
         DependencyManager {
             file_stack: Vec::new(),
+            dependencies: Vec::new(),
         }
     }
 
@@ -43,4 +48,14 @@ impl DependencyManager {
             .parent()
             .ok_or("Current file was not in a directory")?)
     }
+
+    pub(crate) fn mark_file_for_copying<P>(&mut self, path: P) -> Result<(), CustomError>
+    where
+        P: Into<PathBuf>,
+    {
+        self.dependencies.push(Dependency::StaticFile {
+            absolute_path: path.into(),
+        });
+        Ok(())
+    }
 }

src/context/mod.rs

@@ -11,6 +11,7 @@ mod clock;
 mod code;
 mod comment;
 mod comment_block;
+mod dependency;
 mod dependency_manager;
 mod diary_sexp;
 mod document_element;