Auto-detect MimeType based on file extension

1 files changed, 57 insertions, 0 deletions

diff --git a/misctools/mime.js b/misctools/mime.js
new file mode 100644
index 000000000..74f9773e7
--- /dev/null
+++ b/misctools/mime.js
@@ -0,0 +1,57 @@
+const json = await (
+  await fetch("https://raw.githubusercontent.com/jshttp/mime-db/master/db.json")
+).json();
+
+json["application/javascript"].extensions.push(
+  `ts`,
+  `tsx`,
+  `mts`,
+  `mtsx`,
+  `cts`,
+  `cjs`,
+  `mjs`,
+  `js`
+);
+
+delete json["application/node"];
+delete json["application/deno"];
+delete json["application/wasm"];
+
+var categories = new Set();
+var all = "pub const all = struct {";
+for (let key of Object.keys(json).sort()) {
+  const [category] = key.split("/");
+  categories.add(category);
+  all += `pub const @"${key}": MimeType = MimeType{.category = .@"${category}", .value = "${key}"};\n`;
+}
+
+const withExtensions = [
+  ...new Set([
+    ...Object.keys(json)
+      .filter((key) => {
+        return !!json[key]?.extensions?.length;
+      })
+      .flatMap((mime) => {
+        return [...new Set([...json[mime].extensions])].map((ext) => {
+          return [`.{.@"${ext}", all.@"${mime}"}`];
+        });
+      })
+      .sort(),
+  ]),
+];
+
+all += "\n";
+
+all += `  pub const extensions = ComptimeStringMap(MimeType, .{
+${withExtensions.join(",\n")},
+});
+};`;
+
+all += "\n";
+
+// all += `pub const Category = enum {
+//     ${[...categories].map((a) => `@"${a}"`).join(", \n")}
+// };
+// `;
+
+console.log(all);