From 02e0cd8717983976ef1fc8d796755edded01b67e Mon Sep 17 00:00:00 2001
From: "mr. m" <91018726+mr-cheffy@users.noreply.github.com>
Date: Fri, 19 Dec 2025 16:13:28 +0100
Subject: [PATCH] feat: Apply a language code map for certain locales,
 p=#11669, c=scripts

---
 locales/language-maps              |  1 +
 package.json                       |  2 +-
 scripts/copy_language_pack.py      | 21 ++++++++++++++++++++-
 scripts/download-language-packs.sh | 14 ++++++++++++--
 4 files changed, 34 insertions(+), 4 deletions(-)
 create mode 100644 locales/language-maps

diff --git a/locales/language-maps b/locales/language-maps
new file mode 100644
index 000000000..e12f62b15
--- /dev/null
+++ b/locales/language-maps
@@ -0,0 +1 @@
+nb:nb-NO
\ No newline at end of file
diff --git a/package.json b/package.json
index 963e0b0b2..43347ed83 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "sync:raw": "surfer update",
     "sync:rc": "python3 scripts/update_ff.py --rc",
     "sync:l10n": "python3 scripts/update_ff.py --just-l10n",
-    "pretty": "prettier . --write --cache && autopep8 -r --in-place scripts/ src/",
+    "pretty": "prettier . --write --cache && autopep8 -r --in-place scripts/ src/ --exclude */tests/*",
     "lint": "npx eslint src/ && prettier . --check --cache",
     "lint:fix": "npm run pretty && npx eslint src/ --fix",
     "prepare": "husky",
diff --git a/scripts/copy_language_pack.py b/scripts/copy_language_pack.py
index eb471b0bf..857cc55d8 100644
--- a/scripts/copy_language_pack.py
+++ b/scripts/copy_language_pack.py
@@ -10,13 +10,32 @@ import sys
 BROWSER_LOCALES = "engine/browser/locales"
 
 
+def get_language_code(lang_id: str) -> str:
+  """
+  Retrieves the language code from the language-maps file.
+
+  :param lang_id: Language identifier (e.g., 'nb', 'fr', etc.)
+  :return: Corresponding language code (e.g., 'nb-NO', 'fr-FR', etc.)
+  """
+  language_maps_path = os.path.join("locales", "language-maps")
+  if not os.path.exists(language_maps_path):
+    return lang_id  # Return the original if the file doesn't exist
+
+  with open(language_maps_path, "r", encoding="utf-8") as f:
+    for line in f:
+      if line.startswith(f"{lang_id}:"):
+        return line.split(":", 1)[1].strip()
+  return lang_id  # Return the original if no mapping is found
+
+
 def copy_browser_locales(lang_id: str):
   """
   Copies language pack files to the specified browser locale directory.
 
   :param lang_id: Language identifier (e.g., 'en-US', 'fr', etc.)
   """
-  lang_path = os.path.join(BROWSER_LOCALES, lang_id)
+  lang_code = get_language_code(lang_id)
+  lang_path = os.path.join(BROWSER_LOCALES, lang_code)
 
   # Create the directory for the language pack if it doesn't exist
   os.makedirs(lang_path, exist_ok=True)
diff --git a/scripts/download-language-packs.sh b/scripts/download-language-packs.sh
index d14b78164..aa4633ef7 100644
--- a/scripts/download-language-packs.sh
+++ b/scripts/download-language-packs.sh
@@ -39,10 +39,20 @@ fi
 
 set -e
 
-update_language() {
+get_code_for_language() {
+  # Get the language code from locales/language-maps
   langId=$1
+  code=$(grep "^$langId:" ./locales/language-maps | cut -d':' -f2)
+  if [ -z "$code" ]; then
+    code=$langId
+  fi
+  echo $code
+}
+
+update_language() {
+  langId=$(get_code_for_language $1)
   cd ./locales
-  cd $langId
+  cd $1
 
   echo "Updating $langId"
   # move the contents from ../firefox-l10n/$langId to ./locales/$langId