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installer.py: Use Copy on Write for tmp

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Credit to @flagersgit for suggestion
This commit is contained in:
Mykola Grymalyuk
2022-07-02 13:31:50 -06:00
parent b7b3f19fa0
commit fdb82b8e13
1 changed files with 2 additions and 2 deletions
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4
resources/installer.py
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@@ -354,8 +354,8 @@ def generate_installer_creation_script(tmp_location, installer_path, disk):
if (Path(file) / Path("Contents/Resources/createinstallmedia")).exists():
subprocess.run(["rm", "-rf", file])
# Copy installer to tmp
subprocess.run(["cp", "-R", installer_path, tmp_location])
# Copy installer to tmp (use CoW to avoid extra disk writes)
subprocess.run(["cp", "-cR", installer_path, tmp_location])
# Adjust installer_path to point to the copied installer
installer_path = Path(tmp_location) / Path(Path(installer_path).name)