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Fix stability of reproducible tarballs from git repos #4517

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merged 2 commits into from
Apr 26, 2024
Merged

Fix stability of reproducible tarballs from git repos #4517

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4fd2c83
reset file timestamps in reproducible archives to unix epoch zero
lexming Apr 25, 2024
c588c78
omit irrelevant file permissions in reproducible archives
lexming Apr 25, 2024
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10 changes: 5 additions & 5 deletions easybuild/tools/filetools.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2680,13 +2680,13 @@ def get_source_tarball_from_git(filename, target_dir, git_config):
tar_cmd = [
# print names of all files and folders excluding .git directory
'find', repo_name, '-name ".git"', '-prune', '-o', '-print0',
# reset access and modification timestamps
'-exec', 'touch', '-t 197001010100', '{}', r'\;', '|',
# reset access and modification timestamps to epoch 0
'-exec', 'touch', '--date=@0', '{}', r'\;', '|',
# sort file list
'LC_ALL=C', 'sort', '--zero-terminated', '|',
# create tarball in GNU format with ownership reset
'tar', '--create', '--no-recursion', '--owner=0', '--group=0', '--numeric-owner', '--format=gnu',
'--null', '--files-from', '-', '|',
# create tarball in GNU format with ownership and permissions reset
'tar', '--create', '--no-recursion', '--owner=0', '--group=0', '--numeric-owner', '--mode="go+u,go-w"',
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'--format=gnu', '--null', '--files-from', '-', '|',
# compress tarball with gzip without original file name and timestamp
'gzip', '--no-name', '>', archive_path
]
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