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What happens if I push all of nixpkgs
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Nix
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120let # Some metadata on various compression programs, relevant to naming # the initramfs file and, if applicable, generating a u-boot image # from it. compressors = import ./initrd-compressor-meta.nix; # Get the basename of the actual compression program from the whole # compression command, for the purpose of guessing the u-boot # compression type and filename extension. compressorName = fullCommand: builtins.elemAt (builtins.match "([^ ]*/)?([^ ]+).*" fullCommand) 1;in{ stdenvNoCC, cpio, ubootTools, lib, pkgsBuildHost, makeInitrdNGTool, binutils, runCommand, # Name of the derivation (not of the resulting file!) name ? "initrd",
# Program used to compress the cpio archive; use "cat" for no compression. # This can also be a function which takes a package set and returns the path to the compressor, # such as `pkgs: "${pkgs.lzop}/bin/lzop"`. compressor ? "gzip", _compressorFunction ? if lib.isFunction compressor then compressor else if !builtins.hasContext compressor && builtins.hasAttr compressor compressors then compressors.${compressor}.executable else _: compressor, _compressorExecutable ? _compressorFunction pkgsBuildHost, _compressorName ? compressorName _compressorExecutable, _compressorMeta ? compressors.${_compressorName} or { },
# List of arguments to pass to the compressor program, or null to use its defaults compressorArgs ? null, _compressorArgsReal ? if compressorArgs == null then _compressorMeta.defaultArgs or [ ] else compressorArgs,
# Filename extension to use for the compressed initramfs. This is # included for clarity, but $out/initrd will always be a symlink to # the final image. # If this isn't guessed, you may want to complete the metadata above and send a PR :) extension ? _compressorMeta.extension or (throw "Unrecognised compressor ${_compressorName}, please specify filename extension"),
# List of { source = path_or_derivation; target = "/path"; } # The paths are copied into the initramfs in their nix store path # form, then linked at the root according to `target`. contents,
# List of uncompressed cpio files to prepend to the initramfs. This # can be used to add files in specified paths without them becoming # symlinks to store paths. prepend ? [ ],
# Whether to wrap the initramfs in a u-boot image. makeUInitrd ? stdenvNoCC.hostPlatform.linux-kernel.target == "uImage",
# If generating a u-boot image, the architecture to use. The default # guess may not align with u-boot's nomenclature correctly, so it can # be overridden. # See https://gitlab.denx.de/u-boot/u-boot/-/blob/9bfb567e5f1bfe7de8eb41f8c6d00f49d2b9a426/common/image.c#L81-106 for a list. uInitrdArch ? stdenvNoCC.hostPlatform.ubootArch,
# The name of the compression, as recognised by u-boot. # See https://gitlab.denx.de/u-boot/u-boot/-/blob/9bfb567e5f1bfe7de8eb41f8c6d00f49d2b9a426/common/image.c#L195-204 for a list. # If this isn't guessed, you may want to complete the metadata above and send a PR :) uInitrdCompression ? _compressorMeta.ubootName or (throw "Unrecognised compressor ${_compressorName}, please specify uInitrdCompression"),}:runCommand name ({ compress = "${_compressorExecutable} ${lib.escapeShellArgs _compressorArgsReal}"; passthru = { compressorExecutableFunction = _compressorFunction; compressorArgs = _compressorArgsReal; };
inherit extension makeUInitrd uInitrdArch prepend ; ${if makeUInitrd then "uInitrdCompression" else null} = uInitrdCompression;
passAsFile = [ "contents" ]; contents = builtins.toJSON contents;
nativeBuildInputs = [ makeInitrdNGTool cpio ] ++ lib.optional makeUInitrd ubootTools; }) '' mkdir -p ./root/var/empty make-initrd-ng "$contentsPath" ./root mkdir "$out" (cd root && find . -exec touch -h -d '@1' '{}' +) for PREP in $prepend; do cat $PREP >> $out/initrd done (cd root && find . -print0 | sort -z | cpio --quiet -o -H newc -R +0:+0 --reproducible --null | eval -- $compress >> "$out/initrd")
if [ -n "$makeUInitrd" ]; then mkimage -A "$uInitrdArch" -O linux -T ramdisk -C "$uInitrdCompression" -d "$out/initrd" $out/initrd.img # Compatibility symlink ln -sf "initrd.img" "$out/initrd" else ln -s "initrd" "$out/initrd$extension" fi ''