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nixpkgs/pkgs/tools/filesystems/squashfs
Arnout Engelen 0aeba64fb2
squashfs: use -no-hardlinks for reproducible squashfs images (#114454)
the nix store may contain hardlinks: derivations may output them
directly, or users may be using store optimization which automatically
hardlinks identical files in the nix store.

The presence of these links are intended to be a 'transparent'
optimization. However, when creating a squashfs image, the image
will be different depending on whether hard links were present
on the filesystem, leading to reproducibility problems.

By passing '-no-hardlinks' to mksquashfs the files are stored
as duplicates in the squashfs image. Since squashfs has support
for duplicate files this does not lead to a larger image.

For more details see
https://github.com/NixOS/nixpkgs/issues/114331
2021-02-28 18:03:50 +00:00
..
0001-Mksquashfs-add-no-hardlinks-option.patch squashfs: use -no-hardlinks for reproducible squashfs images (#114454) 2021-02-28 18:03:50 +00:00
4k-align.patch
darwin.patch
default.nix squashfs: use -no-hardlinks for reproducible squashfs images (#114454) 2021-02-28 18:03:50 +00:00