From e6c218bce9ae80810a095032b2c11e64b0dc2620 Mon Sep 17 00:00:00 2001
From: Vicki McKay <aureate.tongues@gmail.com>
Date: Mon, 25 Nov 2024 17:29:29 +1100
Subject: [PATCH 1/3] Create GradleEscape extension for #1876

---
 src/briefcase/integrations/cookiecutter.py    | 22 ++++++++++++
 .../cookiecutter/test_GradleEscape.py         | 34 +++++++++++++++++++
 2 files changed, 56 insertions(+)
 create mode 100644 tests/integrations/cookiecutter/test_GradleEscape.py

diff --git a/src/briefcase/integrations/cookiecutter.py b/src/briefcase/integrations/cookiecutter.py
index 8367b94c7..2d53bee32 100644
--- a/src/briefcase/integrations/cookiecutter.py
+++ b/src/briefcase/integrations/cookiecutter.py
@@ -77,6 +77,28 @@ def escape_non_ascii(obj):
         environment.filters["escape_non_ascii"] = escape_non_ascii
 
 
+class GradleEscape(Extension):
+    """Jinja2 extension to escape strings for Gradle as well."""
+
+    def __init__(self, environment):
+        """Initialize the extension with the given environment."""
+        super().__init__(environment)
+
+        def escape_gradle(obj):
+            """Escapes single quotes."""
+            return obj.replace("'", "")
+
+        def escape_non_ascii(obj):
+            """Quotes obj if non ascii characters are present."""
+            if obj.isascii():
+                return obj
+            else:
+                return '"' + obj + '"'
+
+        environment.filters["escape_gradle"] = escape_gradle
+        environment.filters["escape_non_ascii"] = escape_non_ascii
+
+
 class PListExtension(Extension):
     """Jinja2 extension for generating plist values."""
 
diff --git a/tests/integrations/cookiecutter/test_GradleEscape.py b/tests/integrations/cookiecutter/test_GradleEscape.py
new file mode 100644
index 000000000..374d563e9
--- /dev/null
+++ b/tests/integrations/cookiecutter/test_GradleEscape.py
@@ -0,0 +1,34 @@
+from unittest.mock import MagicMock
+
+import pytest
+
+from briefcase.integrations.cookiecutter import GradleEscape
+
+
+@pytest.mark.parametrize(
+    "value, expected",
+    [
+        ("Hello World", "Hello World"),
+        ("Hello ' World", "Hello \\' World"),
+        # ("Hello \\ World", "Hello \\\\ World"),
+    ],
+)
+def test_escape_gradle(value, expected):
+    env = MagicMock()
+    env.filters = {}
+    GradleEscape(env)
+    assert env.filters["escape_gradle"](value) == expected
+
+
+@pytest.mark.parametrize(
+    "value, expected",
+    [
+        ("helloworld", "helloworld"),
+        ("helloworldı", '"helloworldı"'),
+    ],
+)
+def test_escape_non_ascii(value, expected):
+    env = MagicMock()
+    env.filters = {}
+    GradleEscape(env)
+    assert env.filters["escape_non_ascii"](value) == expected

From 65311be459af6caa99dc8c0620e3444510041267 Mon Sep 17 00:00:00 2001
From: Vicki McKay <aureate.tongues@gmail.com>
Date: Tue, 26 Nov 2024 11:29:36 +1100
Subject: [PATCH 2/3] Include backslash escape, fix number of backslashes in
 single quote escape

---
 src/briefcase/integrations/cookiecutter.py           | 4 ++--
 tests/integrations/cookiecutter/test_GradleEscape.py | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/briefcase/integrations/cookiecutter.py b/src/briefcase/integrations/cookiecutter.py
index 2d53bee32..d691b2892 100644
--- a/src/briefcase/integrations/cookiecutter.py
+++ b/src/briefcase/integrations/cookiecutter.py
@@ -85,8 +85,8 @@ def __init__(self, environment):
         super().__init__(environment)
 
         def escape_gradle(obj):
-            """Escapes single quotes."""
-            return obj.replace("'", "")
+            """Escapes single quotes and backslashes."""
+            return obj.replace("\\", "\\\\").replace("'", "\\'")
 
         def escape_non_ascii(obj):
             """Quotes obj if non ascii characters are present."""
diff --git a/tests/integrations/cookiecutter/test_GradleEscape.py b/tests/integrations/cookiecutter/test_GradleEscape.py
index 374d563e9..105ea28c5 100644
--- a/tests/integrations/cookiecutter/test_GradleEscape.py
+++ b/tests/integrations/cookiecutter/test_GradleEscape.py
@@ -10,7 +10,7 @@
     [
         ("Hello World", "Hello World"),
         ("Hello ' World", "Hello \\' World"),
-        # ("Hello \\ World", "Hello \\\\ World"),
+        ("Hello \\ World", "Hello \\\\ World"),
     ],
 )
 def test_escape_gradle(value, expected):

From e44e2b1fb983c16e409b0df5eb69ad81fca8d810 Mon Sep 17 00:00:00 2001
From: Vicki McKay <aureate.tongues@gmail.com>
Date: Tue, 26 Nov 2024 11:34:53 +1100
Subject: [PATCH 3/3] Add release note

---
 changes/1876.bugfix.txt | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 changes/1876.bugfix.txt

diff --git a/changes/1876.bugfix.txt b/changes/1876.bugfix.txt
new file mode 100644
index 000000000..ab1386abd
--- /dev/null
+++ b/changes/1876.bugfix.txt
@@ -0,0 +1 @@
+Added escape template for Gradle which handles single quotes.