Fix checksum fetching when we have prerelease

Signed-off-by: Jun Zhang <[email protected]>

Author: junaire

solc_select/solc_select.py

@@ -319,7 +319,7 @@ def get_soliditylang_checksums(version: str) -> Tuple[str, Optional[str]]:
     response = session.get(list_url)
     response.raise_for_status()
     builds = response.json()["builds"]
-    matches = list(filter(lambda b: b["version"] == version, builds))
+    matches = list(filter(lambda b: b["version"] == version and "prerelease" not in b, builds))
 
     if not matches or not matches[0]["sha256"]:
         raise argparse.ArgumentTypeError(

tests/test_compiler_versions.py

@@ -101,6 +101,12 @@ def test_solc_080(self, test_contracts_dir, isolated_solc_data):
             f"solc080_fail_compile did not fail as expected. Output: {result.stdout}"
         )
 
+    def test_solc_0831_if_contains_prerelease(self, test_contracts_dir, isolated_solc_data):
+        """Test Solidity 0.8.31 compilation behavior."""
+        # Switch to 0.8.31
+        result = run_command("solc-select use 0.8.31 --always-install", check=False)
+        assert result.returncode == 0, f"Failed to switch to 0.8.31: {result.stdout}"
+
 
 class TestVersionSwitching:
     """Test version switching functionality."""