On 11/19/25 03:18, Demi Marie Obenour wrote:
> diff --git a/release/combined/eosimages.nix b/release/combined/eosimages.nix
> index 0ac4c48374e7098a2b91f61fc07cebb2042ffbdc..9921d9bcc89cc38271f83a970815f1060b3780e0 100644
> --- a/release/combined/eosimages.nix
> +++ b/release/combined/eosimages.nix
> @@ -12,11 +12,12 @@ runCommand "eosimages.img" {
>    unsafeDiscardReferences = { out = true; };
>    dontFixup = true;
>  } ''
> +  set -euo pipefail
>    mkdir dir
>    cd dir
> -  ln -s $image $imageName
> -  sha256sum $imageName > $imageName.sha256
> -  tar -chf $NIX_BUILD_TOP/eosimages.tar *
> -  tar2ext4 -i $NIX_BUILD_TOP/eosimages.tar -o $out
> -  e2label $out eosimages
> +  ln -s -- "$image" "$imageName"
> +  gzip -9 < "$image" > "$imageName.gz"
> +  sha256sum -- "$imageName.gz" > "$imageName.gz.sha256"
> +  tar -ch -- "$imageName.gz" "$imageName.gz.sha256" | tar2ext4 -o "$out"
> +  e2label "$out" eosimages
>  '') (_: {})

The use of gzip -9 makes the image build *very* slow.  Compression
alone took about 45 minutes on a laptop.  Should this be configurable?
For an actual release shipped to users, this isn't a big deal, but
for development work it's really bad.  XZ is also supported and is
also slow.
-- 
Sincerely,
Demi Marie Obenour (she/her/hers)