Nelze vybrat více než 25 témat Téma musí začínat písmenem nebo číslem, může obsahovat pomlčky („-“) a může být dlouhé až 35 znaků.

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  1. import json
  2. import sys
  3. from contextlib import contextmanager
  4. from pathlib import Path
  5. from typing import Iterator
  6. import distro
  7. import json5
  8. from . import paths
  9. @contextmanager
  10. def fixup_toolchain(json_file: Path) -> Iterator[Path]:
  11. """
  12. Augment the toolchain at the given path by adding 'ccache' or -fuse-ld=lld,
  13. if those tools are available on the system. Yields a new toolchain file
  14. based on 'json_file'
  15. """
  16. data = json5.loads(json_file.read_text())
  17. # Check if we can add ccache
  18. ccache = paths.find_exe('ccache')
  19. if ccache:
  20. print('Found ccache:', ccache)
  21. data['compiler_launcher'] = [str(ccache)]
  22. # Check for lld for use with GCC/Clang
  23. if paths.find_exe('ld.lld') and data.get('compiler_id') in ('gnu', 'clang'):
  24. print('Linking with `-fuse-ld=lld`')
  25. data.setdefault('link_flags', []).append('-fuse-ld=lld')
  26. # Save the new toolchain data
  27. with paths.new_tempdir() as tdir:
  28. new_json = tdir / json_file.name
  29. new_json.write_text(json.dumps(data))
  30. yield new_json
  31. def get_default_test_toolchain() -> Path:
  32. """
  33. Get the default toolchain that should be used for dev and test based on the
  34. host platform.
  35. """
  36. if distro.id() == 'alpine':
  37. # Alpine Linux cannot use the full audit mode, as asan and ubsan do not
  38. # work with musl
  39. return paths.TOOLS_DIR / 'gcc-9-test.jsonc'
  40. if sys.platform == 'win32':
  41. return paths.TOOLS_DIR / 'msvc-audit.jsonc'
  42. if sys.platform in 'linux':
  43. return paths.TOOLS_DIR / 'gcc-9-audit.jsonc'
  44. if sys.platform == 'darwin':
  45. return paths.TOOLS_DIR / 'gcc-9-audit-macos.jsonc'
  46. raise RuntimeError(f'Unable to determine the default toolchain (sys.platform is {sys.platform!r})')
  47. def get_default_toolchain() -> Path:
  48. """
  49. Get the default toolchain that should be used to generate the release executable
  50. based on the host platform.
  51. """
  52. if sys.platform == 'win32':
  53. return paths.TOOLS_DIR / 'msvc-rel.jsonc'
  54. if sys.platform == 'linux':
  55. return paths.TOOLS_DIR / 'gcc-9-rel.jsonc'
  56. if sys.platform == 'darwin':
  57. return paths.TOOLS_DIR / 'gcc-9-rel-macos.jsonc'
  58. raise RuntimeError(f'Unable to determine the default toolchain (sys.platform is {sys.platform!r})')