refactor: remove eval-time impurities from chromium extensions

- Remove builtins.fetchurl-based version checking from lib.nix
- Move each extension into its own directory with default.nix + metadata.nix
- Add extensions/metadata.nix to compile all update metadata into a list
- Generate update checks via a standalone shell script in updates/

2 files changed, 26 insertions, 0 deletions

diff --git a/modules/web/chromium/extensions/searxng-home/default.nix b/modules/web/chromium/extensions/searxng-home/default.nix
new file mode 100644
index 0000000..e7ec05d
--- /dev/null
+++ b/modules/web/chromium/extensions/searxng-home/default.nix
@@ -0,0 +1,18 @@
+{
+  extLib,
+  ...
+}:
+let
+  meta = import ./metadata.nix;
+in
+{
+  inherit (meta) pname version;
+  id = "gmkjafoflhifgcnmpomcoakhahmepfkc";
+  drv = extLib.fetchUnpackedExtension {
+    inherit (meta) pname version;
+    url = "https://github.com/${meta.owner}/${meta.repo}/releases/download/v${meta.version}/chrome-v${meta.version}.zip";
+    hash = "sha256-fbXxtjTa8GKxylc5JS3GVj/oC+xCI5VJkE3bBpA2CbY=";
+    isCrx = false;
+    extensionKey = "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2cDXvyOi1QgsWlC8LnwyXIV7EZ6yWLKvKCNBn8DPD4DwJgw221wqo6R9p/qnsnqAuveZrV/ApRq6MdzAclkWTGKyCJCRdJGBG/XM3BVfMBkuLXaLrvpFf8p/mDcAP37yOh0Z45XMTr55Y9ifnNH6Wu+3zAaASJlkBuGZ5ygbcUYcomcKjs7qfqxqY8Qe9ovIuLOQely+X9i+Qa6bZ0GJUTgXiKHckgY/43l+H+gs9V91he8qaSubzWPqwbYk8aWhTmjQTeR0vfUP+1/XBESt4u4NGxHsuk+ZwwbL6ThYRbzgj/UbvVGVQsanhIwODdJte51XanEo475Woal31++uxwIDAQAB";
+  };
+}
diff --git a/modules/web/chromium/extensions/searxng-home/metadata.nix b/modules/web/chromium/extensions/searxng-home/metadata.nix
new file mode 100644
index 0000000..0b232f2
--- /dev/null
+++ b/modules/web/chromium/extensions/searxng-home/metadata.nix
@@ -0,0 +1,8 @@
+{
+  pname = "searxng-home";
+  owner = "arpitchakladar";
+  repo = "searxng-home";
+  version = "0.2.0";
+  updateType = "release";
+  tagPrefix = "v";
+}