Verstack Local
841a95c56a
Save the tested release workflows, RAM media processing, program discovery, FLIRT library, and shared-object maintenance. Add Git exclusions, file attributes, and instructions for a later push using a forwarded SSH agent.
32 lines
1.3 KiB
Python
32 lines
1.3 KiB
Python
"""RAM-only scratch policy shared by standalone validation tools."""
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import os
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import pathlib
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import re
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import shutil
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def ram_workspace(config):
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path = pathlib.Path(config.get('workspace', '/tmp/verstack-workspace')).resolve()
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path.mkdir(parents=True, exist_ok=True)
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mounts = []
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for line in pathlib.Path('/proc/self/mountinfo').read_text().splitlines():
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fields, filesystem = line.split(' - ', 1)
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point = pathlib.Path(re.sub(r'\\([0-7]{3})', lambda m: chr(int(m[1], 8)), fields.split()[4]))
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if path.is_relative_to(point):
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mounts.append((len(point.parts), filesystem.split()[0]))
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if not mounts or max(mounts)[1] not in ('tmpfs', 'ramfs'):
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raise ValueError('validation workspace must be on tmpfs/ramfs; no disk fallback')
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budget = int(config.get('workspace_bytes', 8 * 1024**3))
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if budget <= 0 or budget > shutil.disk_usage(path).free:
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raise ValueError('insufficient free RAM workspace for configured workspace_bytes')
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return path, budget
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def scratch_environment(root):
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root = pathlib.Path(root).resolve()
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scratch = root / 'tmp'
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scratch.mkdir(exist_ok=True)
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return {**os.environ, 'TMPDIR': str(scratch), 'TMP': str(scratch),
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'TEMP': str(scratch), 'XDG_CACHE_HOME': str(root / 'cache'),
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'PYTHONDONTWRITEBYTECODE': '1'}
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