1 files changed, 45 insertions, 0 deletions
diff --git a/crates/shirabe/src/package/archiver/archivable_files_filter.rs b/crates/shirabe/src/package/archiver/archivable_files_filter.rs
index 890513a..a267cf1 100644
--- a/crates/shirabe/src/package/archiver/archivable_files_filter.rs
+++ b/crates/shirabe/src/package/archiver/archivable_files_filter.rs
@@ -1 +1,46 @@
 //! ref: composer/src/Composer/Package/Archiver/ArchivableFilesFilter.php
+
+use std::path::PathBuf;
+use shirabe_php_shim::PharData;
+
+pub struct ArchivableFilesFilter {
+    inner: Box<dyn Iterator<Item = PathBuf>>,
+    dirs: Vec<String>,
+}
+
+impl ArchivableFilesFilter {
+    pub fn new(inner: Box<dyn Iterator<Item = PathBuf>>) -> Self {
+        Self {
+            inner,
+            dirs: Vec::new(),
+        }
+    }
+
+    fn accept(&mut self, file: &PathBuf) -> bool {
+        if file.is_dir() {
+            self.dirs.push(file.to_string_lossy().into_owned());
+            return false;
+        }
+        true
+    }
+
+    pub fn add_empty_dir(&self, phar: &PharData, sources: &str) {
+        for filepath in &self.dirs {
+            let localname = filepath.replace(&format!("{}/", sources), "");
+            phar.add_empty_dir(&localname);
+        }
+    }
+}
+
+impl Iterator for ArchivableFilesFilter {
+    type Item = PathBuf;
+
+    fn next(&mut self) -> Option<PathBuf> {
+        loop {
+            let file = self.inner.next()?;
+            if self.accept(&file) {
+                return Some(file);
+            }
+        }
+    }
+}