Fallback if toml file parsing failed (#246)

.github/workflows/test.yml

@@ -200,3 +200,15 @@ jobs:
             exit 1
           fi
         shell: bash
+
+  test-malformed-pyproject-file-fallback:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install using malformed pyproject.toml
+        id: setup-uv
+        uses: ./
+        with:
+          pyproject-file: "__tests__/fixtures/malformed-pyproject-toml-project/pyproject.toml"
+      - run: uv sync
+        working-directory: __tests__/fixtures/uv-project

__tests__/fixtures/malformed-pyproject-toml-project/.python-version

@@ -0,0 +1 @@
+3.11

__tests__/fixtures/malformed-pyproject-toml-project/hello.py

@@ -0,0 +1,6 @@
+def main():
+    print("Hello from malformed-pyproject-toml-project!")
+
+
+if __name__ == "__main__":
+    main()

__tests__/fixtures/malformed-pyproject-toml-project/pyproject.toml

@@ -0,0 +1,9 @@
+[project]
+name = "malformed-pyproject-toml-project"
+version = "0.1.0"
+description = "Add your description here"
+readme = "README.md"
+requires-python = ">=3.11"
+dependencies = []
+
+[malformed-toml

src/utils/pyproject.ts

@@ -9,7 +9,14 @@ export function getUvVersionFromConfigFile(
     core.warning(`Could not find file: ${filePath}`);
     return undefined;
   }
-  let requiredVersion = getRequiredVersion(filePath);
+  let requiredVersion: string | undefined;
+  try {
+    requiredVersion = getRequiredVersion(filePath);
+  } catch (err) {
+    const message = (err as Error).message;
+    core.warning(`Error while parsing ${filePath}: ${message}`);
+    return undefined;
+  }
 
   if (requiredVersion?.startsWith("==")) {
     requiredVersion = requiredVersion.slice(2);