image: update mkosi and use package directory feature

bazel/mkosi/mkosi_image.bzl

@@ -1,6 +1,5 @@
 """ Bazel rule for building mkosi images. """
 
-load("@aspect_bazel_lib//lib:paths.bzl", "relative_file")
 load("@bazel_skylib//lib:paths.bzl", "paths")
 
 def _mkosi_image_impl(ctx):
@@ -9,7 +8,6 @@ def _mkosi_image_impl(ctx):
     outputs = []
     tools = []
     workdir = ctx.file.mkosi_conf.dirname
-    config_rel = lambda target: relative_file(target, ctx.file.mkosi_conf.path)
     env = {}
     args.add("-C", workdir)
     if ctx.attr.distribution:
@@ -19,24 +17,24 @@ def _mkosi_image_impl(ctx):
     if ctx.attr.output:
         args.add("--output", ctx.attr.output)
     args.add_all(ctx.attr.packages, before_each = "--package")
-    for package_file in ctx.files.package_files:
+    for package_dir in ctx.files.package_directories:
-        args.add("--package", config_rel(package_file.path))
+        args.add("--package-directory", package_dir.path)
     if len(ctx.files.local_mirror) > 0:
-        env["LOCAL_MIRROR"] = config_rel(ctx.files.local_mirror[0].dirname)
+        env["LOCAL_MIRROR"] = ctx.files.local_mirror[0].dirname
     for tree in ctx.files.base_trees:
-        args.add("--base-tree", config_rel(tree.path))
+        args.add("--base-tree", tree.path)
     for tree in ctx.files.skeleton_trees:
-        args.add("--skeleton-tree", config_rel(tree.path))
+        args.add("--skeleton-tree", tree.path)
     for tree in ctx.files.package_manager_trees:
-        args.add("--package-manager_tree", config_rel(tree.path))
+        args.add("--package-manager-tree", tree.path)
     for tree in ctx.files.extra_trees:
-        args.add("--extra-tree", config_rel(tree.path))
+        args.add("--extra-tree", tree.path)
     for initrd in ctx.files.initrds:
         inputs.append(initrd)
-        args.add("--initrd", config_rel(initrd.path))
+        args.add("--initrd", initrd.path)
     inputs.extend(ctx.files.mkosi_conf)
     inputs.extend(ctx.files.srcs[:])
-    inputs.extend(ctx.files.package_files[:])
+    inputs.extend(ctx.files.package_directories[:])
     inputs.extend(ctx.files.base_trees[:])
     inputs.extend(ctx.files.skeleton_trees[:])
     inputs.extend(ctx.files.package_manager_trees[:])
@@ -59,9 +57,9 @@ def _mkosi_image_impl(ctx):
             if output.is_directory and out_dir.path.startswith(output.path + "/"):
                 fail("output directory {} is nested within output directory {}; outputs cannot be nested within each other!".format(out_dir.path, output.path))
         outputs.append(out_dir)
-        args.add("--output-dir", config_rel(out_dir.path))
+        args.add("--output-dir", out_dir.path)
     else:
-        args.add("--output-dir", config_rel(paths.join(ctx.bin_dir.path, ctx.label.package)))
+        args.add("--output-dir", paths.join(ctx.bin_dir.path, ctx.label.package))
     args.add_all(ctx.attr.extra_args)
     for key, value in ctx.attr.env.items():
         args.add("--environment", "{}={}".format(key, value))
@@ -126,7 +124,7 @@ mkosi_image = rule(
         "out_dir": attr.string(),
         "output": attr.string(),
         "outs": attr.output_list(),
-        "package_files": attr.label_list(allow_files = True),
+        "package_directories": attr.label_list(allow_files = True),
         "package_manager_trees": attr.label_list(allow_files = True),
         "packages": attr.string_list(),
         "seed": attr.string(),

bazel/mkosi/mkosi_wrapper.sh.in

@@ -4,7 +4,24 @@ shopt -s inherit_errexit
 
 export PATH=/run/wrappers/bin:/run/current-system/sw/bin:/bin:/usr/bin:/usr/local/bin
 VERSION_ARG=""
-args=("$@")
+args=()
+
+while [[ $# -gt 0 ]]; do
+  key="$1"
+  case $key in
+  --*-tree | --initrd | --package-directory | --output-dir)
+    # absolutize any file paths
+    shift # past the key and to the value
+    value="$1"
+    args+=("${key}" "$(realpath "${value}")")
+    shift # past the value
+    ;;
+  *)
+    args+=("$1")
+    shift
+    ;;
+  esac
+done
 
 if [[ -n ${VERSION_FILE+x} ]]; then
   VERSION_ARG="--environment=IMAGE_VERSION=$(cat "${VERSION_FILE}")"
@@ -14,14 +31,12 @@ fi
 if [[ -n ${LOCAL_MIRROR+x} ]]; then
   LOCAL_MIRROR=$(realpath "${LOCAL_MIRROR}")
   reposdir=$(mktemp -d)
-  cat > "${reposdir}/mkosi.repo" << EOF
+  # putting an empty repo file under /etc/yum.repos.d/mkosi.repo
-[local-mirror]
+  # will make mkosi use only package directories
-name=local-mirror
+  # and not try to fetch packages from the network
-baseurl=file://${LOCAL_MIRROR}
+  touch "${reposdir}/mkosi.repo"
-enabled=1
-gpgcheck=0
-EOF
   args+=("--package-manager-tree=${reposdir}:/etc/yum.repos.d")
+  args+=("--package-directory" "${LOCAL_MIRROR}")
 fi
 
 exec @@MKOSI@@ "${args[@]}" build

flake.nix

@@ -28,17 +28,11 @@
       callPackage = pkgsUnstable.callPackage;
 
       mkosiDev = (pkgsUnstable.mkosi.overrideAttrs (oldAttrs: rec {
-        # TODO(malt3): remove patch once merged and released upstream (systemd/mkosi#2163)
-        src = pkgsUnstable.fetchFromGitHub {
-          owner = "systemd";
-          repo = "mkosi";
-          rev = "abf22cdc6ccb13f2cd84679ede77231455ec6813";
-          hash = "sha256-njtYWSXSLMcn6AtGfAeL/ncZQ6g+Vgpe7EaKLkzAOl4=";
-        };
         propagatedBuildInputs = oldAttrs.propagatedBuildInputs ++ (with pkgsUnstable;  [
           # package management
           dnf5
           rpm
+          createrepo_c
 
           # filesystem tools
           squashfsTools # mksquashfs
@@ -50,6 +44,10 @@
           cpio # cpio
           zstd # zstd
           xz # xz
+
+          # utils
+          gnused # sed
+          gnugrep # grep
         ]);
       }));
 

image/base/BUILD.bazel

@@ -1,4 +1,3 @@
-load("@aspect_bazel_lib//lib:copy_file.bzl", "copy_file")
 load("@aspect_bazel_lib//lib:copy_to_directory.bzl", "copy_to_directory")
 load("@rules_pkg//:pkg.bzl", "pkg_tar")
 load("//bazel/mkosi:mkosi_image.bzl", "mkosi_image")
@@ -27,25 +26,6 @@ copy_to_directory(
     replace_prefixes = {"file": ""},
 )
 
-[
-    copy_file(
-        name = name,
-        src = "@" + name + "//file",
-        out = name + ".rpm",
-        allow_symlink = True,
-    )
-    for name in [
-        "kernel_lts",
-        "kernel_core_lts",
-        "kernel_modules_lts",
-        "kernel_modules_core_lts",
-        "kernel_mainline",
-        "kernel_core_mainline",
-        "kernel_modules_mainline",
-        "kernel_modules_core_mainline",
-    ]
-]
-
 [
     mkosi_image(
         name = "base_" + kernel_variant,
@@ -71,11 +51,8 @@ copy_to_directory(
         local_mirror = ["@mkosi_rpms//:repo"],
         mkosi_conf = "mkosi.conf",
         output = kernel_variant,
-        package_files = [
+        package_directories = [
-            ":kernel_" + kernel_variant,
+            ":rpms_" + kernel_variant,
-            ":kernel_core_" + kernel_variant,
-            ":kernel_modules_" + kernel_variant,
-            ":kernel_modules_core_" + kernel_variant,
         ],
         tags = [
             "manual",

image/base/mkosi.conf

@@ -15,6 +15,9 @@ Packages=systemd
          dbus
          udev
          util-linux
+         kernel
+         kernel-core
+         kernel-modules
 
 # nvme / disk / udev tools
 Packages=nvme-cli