From c392bba1960c38b5054989a07af2b31d659666a5 Mon Sep 17 00:00:00 2001
From: Oliver Walters <oliver.henry.walters@gmail.com>
Date: Mon, 18 Jan 2021 19:13:52 +1100
Subject: [PATCH] Add script to calculate translation stats

---
 InvenTree/script/translation_stats.py | 68 +++++++++++++++++++++++++++
 tasks.py                              |  4 ++
 2 files changed, 72 insertions(+)
 create mode 100644 InvenTree/script/translation_stats.py

diff --git a/InvenTree/script/translation_stats.py b/InvenTree/script/translation_stats.py
new file mode 100644
index 0000000000..0ba969479b
--- /dev/null
+++ b/InvenTree/script/translation_stats.py
@@ -0,0 +1,68 @@
+"""
+This script calculates translation coverage for various languages
+"""
+
+import os
+
+
+def calculate_coverage(filename):
+    """
+    Calculate translation coverage for a .po file
+    """
+
+    with open(filename, 'r') as f:
+        lines = f.readlines()
+
+    lines_count = 0
+    lines_covered = 0
+    lines_uncovered = 0
+
+    for line in lines:
+
+        if line.startswith("msgid "):
+            lines_count += 1
+
+        elif line.startswith("msgstr"):
+            if line.startswith('msgstr ""') or line.startswith("msgstr ''"):
+                lines_uncovered += 1
+            else:
+                lines_covered += 1
+
+    # Return stats for the file
+    return (lines_count, lines_covered, lines_uncovered)
+
+
+if __name__ == '__main__':
+
+    MY_DIR = os.path.dirname(os.path.realpath(__file__))
+    LC_DIR = os.path.abspath(os.path.join(MY_DIR, '..', 'locale'))
+
+    locales = {}
+
+    print("InvenTree translation coverage:")
+
+    for locale in os.listdir(LC_DIR):
+        path = os.path.join(LC_DIR, locale)
+        if os.path.exists(path) and os.path.isdir(path):
+
+            locale_file = os.path.join(path, 'LC_MESSAGES', 'django.po')
+
+            if os.path.exists(locale_file) and os.path.isfile(locale_file):
+                locales[locale] = locale_file
+
+    print("-" * 16)
+
+    for locale in locales.keys():
+        locale_file = locales[locale]
+        stats = calculate_coverage(locale_file)
+
+        (total, covered, uncovered) = stats
+
+        if total > 0:
+            percentage = int(covered / total * 100)
+        else:
+            percentage = 0
+
+        print(f"| {locale.ljust(4, ' ')} : {str(percentage).rjust(4, ' ')}% |")
+    
+    print("-" * 16)
diff --git a/tasks.py b/tasks.py
index 69c53b83d4..77604eaf3a 100644
--- a/tasks.py
+++ b/tasks.py
@@ -186,6 +186,10 @@ def translate(c):
     manage(c, "makemessages -e py -e html -e js")
     manage(c, "compilemessages")
 
+    path = os.path.join('InvenTree', 'script', 'translation_stats.py')
+
+    c.run(f'python {path}')
+
 @task
 def style(c):
     """