From 7a6c54c76ecdf48b34c663a3a2dc9d187e80c0f6 Mon Sep 17 00:00:00 2001
From: Knarkzel <knarkzel@gmail.com>
Date: Tue, 15 Nov 2022 15:17:21 +0100
Subject: [PATCH] Initial commit

---
 README.md             |  9 +++++
 devkitppc/default.nix | 80 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 89 insertions(+)
 create mode 100644 README.md
 create mode 100644 devkitppc/default.nix

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..8399e17
--- /dev/null
+++ b/README.md
@@ -0,0 +1,9 @@
+# devkitnix
+
+Collection of Nix-compatible build scripts for devkitpro. To install toolchain,
+use following:
+
+```
+cd <toolchain>
+nix-build .
+```
diff --git a/devkitppc/default.nix b/devkitppc/default.nix
new file mode 100644
index 0000000..2845a62
--- /dev/null
+++ b/devkitppc/default.nix
@@ -0,0 +1,80 @@
+{pkgs ? import <nixpkgs> {}}:
+with pkgs; rec {
+  devkitppc-img = dockerTools.pullImage {
+    imageName = "devkitpro/devkitppc";
+    imageDigest = "sha256:77ed88cb417e057fa805e12a8ce1eab8865fe35a761cde7be00315d5c6cba288";
+    sha256 = "LLFLDSPJ/tCRBLj0f9q34b5GVHnHudFCgkb7ppMm8VI=";
+    finalImageName = "devkitpro/devkitppc";
+    finalImageTag = "20200704";
+  };
+
+  # based on <nixpkgs/nixos/modules/virtualisation/docker-preloader.nix>
+  extractDocker = image: dir:
+    pkgs.vmTools.runInLinuxVM (
+      pkgs.runCommand "docker-preload-image" {
+        buildInputs = [
+          docker
+          e2fsprogs
+          utillinux
+          curl
+          kmod
+        ];
+        memSize = 8 * 1024;
+      }
+        
+      ''
+        modprobe overlay
+
+        # from https://github.com/tianon/cgroupfs-mount/blob/master/cgroupfs-mount
+        mount -t tmpfs -o uid=0,gid=0,mode=0755 cgroup /sys/fs/cgroup
+        cd /sys/fs/cgroup
+        for sys in $(awk '!/^#/ { if ($4 == 1) print $1 }' /proc/cgroups); do
+          mkdir -p $sys
+          if ! mountpoint -q $sys; then
+            if ! mount -n -t cgroup -o $sys cgroup $sys; then
+              rmdir $sys || true
+            fi
+          fi
+        done
+
+        dockerd -H tcp://127.0.0.1:5555 -H unix:///var/run/docker.sock &
+
+        until $(curl --output /dev/null --silent --connect-timeout 2 http://127.0.0.1:5555); do
+          printf '.'
+          sleep 1
+        done
+
+        echo load image
+        docker load -i ${image}
+
+        echo run image
+        docker run ${image.destNameTag} tar -C '${toString dir}' -c . | tar -xv --no-same-owner -C $out || true
+
+        echo end
+        kill %1
+      ''
+    );
+
+  devkitpro = stdenv.mkDerivation {
+    name = "devkitpro";
+    src = extractDocker devkitppc-img "/opt/devkitpro";
+    nativeBuildInputs = [
+      autoPatchelfHook
+    ];
+    buildInputs = [
+      stdenv.cc.cc
+      openssl
+      zlib
+      libarchive
+      ncurses5
+      expat
+      tlf
+    ];
+    buildPhase = "true";
+    installPhase = ''
+      mkdir -p $out
+      cp -r $src/{devkitPPC,libogc,examples,portlibs,tools,wut} $out
+      rm -rf $out/pacman
+    '';
+  };
+}