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unpack_strategy/dmg: fix permissions when needed.

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`ditto` behaves weirdly when the EUID is different from the UID. This
fix ensures that the BOM file is written with the correct permissions
in this case.
This commit is contained in:
Mike McQuaid 2024-04-01 09:49:10 +01:00
parent 8a59266e92
commit 0bbfa434cf
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1 changed files with 9 additions and 1 deletions
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10
Library/Homebrew/unpack_strategy/dmg.rb
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@ -147,8 +147,16 @@ module UnpackStrategy
verbose:
end
bomfile_path = T.must(bomfile.path)
# Ditto will try to write as the UID, not the EUID and the Tempfile has 0700 permissions.
if Process.euid != Process.uid
FileUtils.chown(nil, Process.gid, bomfile_path)
FileUtils.chmod "g+rw", bomfile_path
end
system_command!("ditto",
args: ["--bom", bomfile.path, "--", path, unpack_dir],
args: ["--bom", bomfile_path, "--", path, unpack_dir],
verbose:)
FileUtils.chmod "u+w", Pathname.glob(unpack_dir/"**/*", File::FNM_DOTMATCH).reject(&:symlink?)