[FIX] test_lint: check for duplicate entries in POT files

X-original-commit: 4e29fbada592e887459dabee71708c6d0dd01715

addons/l10n_ch/i18n/l10n_ch.pot

@@ -559,6 +559,7 @@ msgstr ""
 msgid "type: [(name, amount, base, formated amount, formated base)]"
 msgstr ""
 
+#. module: l10n_ch
 #: code:addons/l10n_ch/models/account_invoice.py:179
 #, python-format
 msgid "Cannot generate the QR-bill. Please check you have configured the address of your company and debtor. If you are using a QR-IBAN, also check the invoice's payment reference is a QR reference."

odoo/addons/test_lint/tests/__init__.py

@@ -1,4 +1,5 @@
 from . import test_pylint
+from . import test_pofile
 from . import test_ecmascript
 from . import test_markers
 from . import test_onchange_domains

odoo/addons/test_lint/tests/test_pofile.py

@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from collections import Counter
+
+from odoo.modules import get_modules, get_resource_path
+from odoo.tests.common import TransactionCase
+from odoo.tools.translate import TranslationFileReader
+
+
+class PotLinter(TransactionCase):
+    def test_pot_duplicate_entries(self):
+        def format(entry):
+            # TranslationFileReader only returns those three types
+            if entry['type'] == 'model':
+                return ('model', entry['name'], entry['imd_name'])
+            elif entry['type'] == 'model_terms':
+                return ('model_terms', entry['name'], entry['imd_name'], entry['src'])
+            elif entry['type'] == 'code':
+                return ('code', entry['src'])
+
+        # retrieve all modules, and their corresponding POT file
+        for module in get_modules():
+            filename = get_resource_path(module, 'i18n', module + '.pot')
+            if not filename:
+                continue
+            counts = Counter(map(format, TranslationFileReader(filename)))
+            duplicates = [key for key, count in counts.items() if count > 1]
+            self.assertFalse(duplicates, "Duplicate entries found in %s" % filename)