1 files changed, 42 insertions, 0 deletions
diff --git a/cli/cache/http_cache/common.rs b/cli/cache/http_cache/common.rs
new file mode 100644
index 000000000..690412293
--- /dev/null
+++ b/cli/cache/http_cache/common.rs
@@ -0,0 +1,42 @@
+// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
+
+use std::path::Path;
+
+use deno_core::url::Url;
+
+pub fn base_url_to_filename_parts(
+  url: &Url,
+  port_separator: &str,
+) -> Option<Vec<String>> {
+  let mut out = Vec::with_capacity(2);
+
+  let scheme = url.scheme();
+  out.push(scheme.to_string());
+
+  match scheme {
+    "http" | "https" => {
+      let host = url.host_str().unwrap();
+      let host_port = match url.port() {
+        // underscores are not allowed in domains, so adding one here is fine
+        Some(port) => format!("{host}{port_separator}{port}"),
+        None => host.to_string(),
+      };
+      out.push(host_port);
+    }
+    "data" | "blob" => (),
+    scheme => {
+      log::debug!("Don't know how to create cache name for scheme: {}", scheme);
+      return None;
+    }
+  };
+
+  Some(out)
+}
+
+pub fn read_file_bytes(path: &Path) -> std::io::Result<Option<Vec<u8>>> {
+  match std::fs::read(path) {
+    Ok(s) => Ok(Some(s)),
+    Err(err) if err.kind() == std::io::ErrorKind::NotFound => Ok(None),
+    Err(err) => Err(err),
+  }
+}