mirror of
https://github.com/NixOS/nixpkgs.git
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4f0dadbf38
After final improvements to the official formatter implementation,
this commit now performs the first treewide reformat of Nix files using it.
This is part of the implementation of RFC 166.
Only "inactive" files are reformatted, meaning only files that
aren't being touched by any PR with activity in the past 2 months.
This is to avoid conflicts for PRs that might soon be merged.
Later we can do a full treewide reformat to get the rest,
which should not cause as many conflicts.
A CI check has already been running for some time to ensure that new and
already-formatted files are formatted, so the files being reformatted here
should also stay formatted.
This commit was automatically created and can be verified using
nix-build a08b3a4d19.tar.gz \
--argstr baseRev b32a094368
result/bin/apply-formatting $NIXPKGS_PATH
118 lines
3.2 KiB
Nix
118 lines
3.2 KiB
Nix
{
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pkgs,
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lib,
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stdenv,
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}:
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/*
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Create a systemd portable service image
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https://systemd.io/PORTABLE_SERVICES/
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Example:
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pkgs.portableService {
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pname = "demo";
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version = "1.0";
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units = [ demo-service demo-socket ];
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}
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*/
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{
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# The name and version of the portable service. The resulting image will be
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# created in result/$pname_$version.raw
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pname,
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version,
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# Units is a list of derivations for systemd unit files. Those files will be
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# copied to /etc/systemd/system in the resulting image. Note that the unit
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# names must be prefixed with the name of the portable service.
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units,
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# Basic info about the portable service image, used for the generated
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# /etc/os-release
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description ? null,
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homepage ? null,
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# A list of attribute sets {object, symlink}. Symlinks will be created
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# in the root filesystem of the image to objects in the nix store.
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symlinks ? [ ],
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# A list of additional derivations to be included in the image as-is.
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contents ? [ ],
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# mksquashfs options
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squashfsTools ? pkgs.squashfsTools,
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squash-compression ? "xz -Xdict-size 100%",
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squash-block-size ? "1M",
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}:
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let
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filterNull = lib.filterAttrs (_: v: v != null);
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envFileGenerator = lib.generators.toKeyValue { };
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rootFsScaffold =
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let
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os-release-params = {
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PORTABLE_ID = pname;
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PORTABLE_PRETTY_NAME = description;
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HOME_URL = homepage;
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ID = "nixos";
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PRETTY_NAME = "NixOS";
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BUILD_ID = "rolling";
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};
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os-release = pkgs.writeText "os-release" (envFileGenerator (filterNull os-release-params));
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in
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stdenv.mkDerivation {
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pname = "root-fs-scaffold";
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inherit version;
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buildCommand =
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''
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# scaffold a file system layout
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mkdir -p $out/etc/systemd/system $out/proc $out/sys $out/dev $out/run \
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$out/tmp $out/var/tmp $out/var/lib $out/var/cache $out/var/log
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# empty files to mount over with host's version
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touch $out/etc/resolv.conf $out/etc/machine-id
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# required for portable services
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cp ${os-release} $out/etc/os-release
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''
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# units **must** be copied to /etc/systemd/system/
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+ (lib.concatMapStringsSep "\n" (u: "cp ${u} $out/etc/systemd/system/${u.name};") units)
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+ (lib.concatMapStringsSep "\n" (
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{ object, symlink }:
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''
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mkdir -p $(dirname $out/${symlink});
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ln -s ${object} $out/${symlink};
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''
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) symlinks);
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};
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in
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assert lib.assertMsg (lib.all (
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u: lib.hasPrefix pname u.name
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) units) "Unit names must be prefixed with the service name";
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stdenv.mkDerivation {
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pname = "${pname}-img";
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inherit version;
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nativeBuildInputs = [ squashfsTools ];
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closureInfo = pkgs.closureInfo { rootPaths = [ rootFsScaffold ] ++ contents; };
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buildCommand = ''
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mkdir -p nix/store
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for i in $(< $closureInfo/store-paths); do
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cp -a "$i" "''${i:1}"
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done
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mkdir -p $out
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# the '.raw' suffix is mandatory by the portable service spec
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mksquashfs nix ${rootFsScaffold}/* $out/"${pname}_${version}.raw" \
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-quiet -noappend \
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-exit-on-error \
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-keep-as-directory \
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-all-root -root-mode 755 \
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-b ${squash-block-size} -comp ${squash-compression}
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'';
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}
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