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https://github.com/carbon-language/carbon-lang.git
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17897bb05d
e.g. for failures like https://github.com/carbon-language/carbon-lang/actions/runs/22418738440/job/64911093548 We work around this similarly in run_bazel.py already; this is mirroring over some of the logic (sharing would require work on Python's set up). Assisted-by: Google Antigravity with Gemini 3 Flash --------- Co-authored-by: Chandler Carruth <chandlerc@gmail.com>
83 lines
2.8 KiB
Python
Executable File
83 lines
2.8 KiB
Python
Executable File
#!/usr/bin/env python3
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"""Checks various LLVM tool symlinks behave as expected."""
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__copyright__ = """
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Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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Exceptions. See /LICENSE for license information.
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SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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"""
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import os
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import sys
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import time
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import unittest
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from bazel_tools.tools.python.runfiles import runfiles
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from bazel_integration_test.py import test_base
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class BazelExampleTest(test_base.TestBase):
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def setUp(self) -> None:
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test_base.TestBase.setUp(self)
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self.runfiles = runfiles.Create()
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self.install_module = self.runfiles.Rlocation(
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"carbon/toolchain/install/prefix/lib/carbon"
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)
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self.startup_flags = [
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"--ignore_all_rc_files",
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"--batch",
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]
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self.flags = [
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f"--override_module=carbon_toolchain={self.install_module}"
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]
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def _run_bazel(self, command: list[str]) -> str:
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"""Runs bazel with retry logic for transient errors."""
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for attempt in range(5):
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exit_code, stdout, stderr = self.RunBazel(
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self.startup_flags + command + self.flags
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)
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# Several error codes are reliably permanent, break immediately.
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# `1` -- The build failed.
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# `2` -- Command line or environment problem.
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# `3` -- Tests failed or timed out, we don't retry at this layer
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# on execution timeout.
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# `4` -- Test command but no tests found.
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# `8` -- Explicitly interrupted build.
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#
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# Note that `36` is documented as "likely permanent", but we retry
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# it as most of our transient failures actually produce that error
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# code.
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perm_error = (1, 2, 3, 4, 8)
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if exit_code in perm_error:
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break
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for line in stderr:
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print(line, file=sys.stderr)
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if exit_code == 0:
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return stdout
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# Retry transient errors with a brief delay.
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print(f"Attempt {attempt + 1} failed with exit code {exit_code}")
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time.sleep(attempt)
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self.AssertExitCode(exit_code, 0, stderr)
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def test_compile_lib(self) -> None:
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# TODO: Can remove this in favor of always running `test_run` if we can
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# make linking a binary sufficiently efficient.
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self._run_bazel(["build", "//:example_lib"])
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@unittest.skipUnless(
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"CARBON_BAZEL_TEST_FULL" in os.environ,
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"Skipping expensive test step for minimal testing",
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)
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def test_run(self) -> None:
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stdout = self._run_bazel(["run", "//:example"])
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self.assertEqual(stdout, ["Hello World!"])
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if __name__ == "__main__":
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unittest.main()
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