WIP: Native MinGW toolchain

.github/scripts/build-package.sh

@@ -21,12 +21,18 @@ ARGUMENTS="--syncdeps \
     $([ "$CLEAN_BUILD" = 1 ] && echo "--cleanbuild" || echo "") \
     $([ "$INSTALL_PACKAGE" = 1 ] && echo "--install" || echo "")"
 
-ccache -svv  || true
+echo "::group::Ccache statistics before build"
+    ccache -svv  || true
+echo "::endgroup::"
 
-if [[ "$PACKAGE_REPOSITORY" == *MINGW* ]]; then
-    makepkg-mingw $ARGUMENTS
-else
-    makepkg $ARGUMENTS
-fi
+echo "::group::Build package"
+    if [[ "$PACKAGE_REPOSITORY" == *MINGW* ]]; then
+        makepkg-mingw $ARGUMENTS
+    else
+        makepkg $ARGUMENTS
+    fi
+echo "::endgroup::"
 
-ccache -svv || true
+echo "::group::Ccache statistics after build"
+    ccache -svv || true
+echo "::endgroup::"

.github/scripts/create-repository.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+set -e # exit on error
+set -x # echo on
+set -o pipefail # fail of any command in pipeline is an error
+
+echo "::group::Create MSYS2 packages repository"
+  mkdir -p repository/msys/x86_64
+  mv -f mingw-w64-cross-*.pkg.* repository/msys/x86_64/
+  pushd repository/msys/x86_64
+    repo-add woarm64-cross.db.tar.gz *.pkg.*
+  popd
+
+  mkdir -p repository/mingw/aarch64
+  mv -f mingw-w64-aarch64-*.pkg.* repository/mingw/aarch64/
+  pushd repository/mingw/aarch64
+    repo-add woarm64-native.db.tar.gz *.pkg.*
+  popd
+echo "::endgroup::"

.github/scripts/download-artifacts.sh

@@ -5,9 +5,11 @@ set -x # echo on
 set -o pipefail # fail of any command in pipeline is an error
 
 RUN_ID=$1
-NEEDS=`echo "$2" | /mingw64/bin/jq 'keys|join(" ")' | sed 's/"//g'`
 
-for NEED in $NEEDS; do
-    echo "Downloading $NEED artifact."
-    /mingw64/bin/gh run download $RUN_ID -n $NEED
+for ARG in "${@:2}"; do
+    NEEDS=`echo "$ARG" | /mingw64/bin/jq 'keys|join(" ")' | sed 's/"//g'`
+    for NEED in $NEEDS; do
+        echo "Downloading $NEED artifact."
+        /mingw64/bin/gh run download $RUN_ID -n $NEED
+    done
 done

.github/scripts/enable-ccache.sh

@@ -6,11 +6,14 @@ set -o pipefail # fail of any command in pipeline is an error
 
 DIR="`dirname ${BASH_SOURCE[0]}`/../.."
 DIR=`realpath $DIR`
+CCACHE_DIR=$DIR/ccache
 if [[ -n "$GITHUB_WORKSPACE" ]]; then
-  echo "CCACHE_DIR=$DIR/ccache" >> "$GITHUB_ENV"
+  echo "CCACHE_DIR=$CCACHE_DIR" >> "$GITHUB_ENV"
   echo timestamp=$(date -u --iso-8601=seconds) >> "$GITHUB_OUTPUT"
 fi
 
+mkdir -p $CCACHE_DIR
+
 pushd /
   echo "::group::/etc/makepkg.conf"
     patch -p1 -b -i "$DIR/patches/ccache/0001-makepkg.patch"
@@ -22,3 +25,15 @@ pushd /
     cat /etc/makepkg_mingw.conf
   echo "::endgroup::"
 popd
+
+pacman -S --noconfirm ccache
+
+pushd /usr/lib/ccache/bin
+  echo "::group::Add aarch64 toolchain to ccache"
+    export MSYS=winsymlinks
+    ln -sf /usr/bin/ccache aarch64-w64-mingw32-c++
+    ln -sf /usr/bin/ccache aarch64-w64-mingw32-g++
+    ln -sf /usr/bin/ccache aarch64-w64-mingw32-gcc
+    ln -sf /usr/bin/true makeinfo
+  echo "::endgroup::"
+popd

.github/scripts/pacman-workaround.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+
+set -e # exit on error
+set -x # echo on
+set -o pipefail # fail of any command in pipeline is an error
+
+if [ -z "$GITHUB_WORKSPACE" ]; then
+  DIR=`pwd`
+else
+  DIR=`cygpath "$GITHUB_WORKSPACE"`
+fi
+
+echo "::group::Pacman hang workaround"
+  while ! timeout -k 15s 10s pacman -U --noconfirm "$DIR/patches/pacman/pacman-6.1.0-4-x86_64.pkg.tar.zst"
+  do
+    echo "Command failed, retrying..."
+  done
+echo "::endgroup::"
+
+echo "::group::Install patch"
+  pacman -S --noconfirm patch
+echo "::endgroup::"
+
+pushd /
+  echo "::group::Pin pacman packages"
+    patch -p1 -b -i "$DIR/patches/pacman/0001-pin-packages.patch"
+  echo "::endgroup::"
+
+  echo "::group::/etc/pacman.conf"
+    cat /etc/pacman.conf
+  echo "::endgroup::"
+popd

.github/scripts/setup-mingwarm64.sh

@@ -0,0 +1,39 @@
+#!/bin/bash
+
+set -e # exit on error
+set -x # echo on
+set -o pipefail # fail of any command in pipeline is an error
+
+if [ -z "$GITHUB_WORKSPACE" ]; then
+  DIR=`pwd`
+else
+  DIR=`cygpath "$GITHUB_WORKSPACE"`
+fi
+
+echo "::group::Install patch"
+  pacman -S --noconfirm patch
+echo "::endgroup::"
+
+pushd /
+  echo "::group::Patch MSYS2 environment"
+    patch -p1 -b -i "$DIR/patches/makepkg/0001-mingwarm64.patch"
+    if [[ "$CROSS_BUILD" = "1" ]]; then
+      patch -p1 -b -i "$DIR/patches/makepkg/0002-mingwarm64-cross-build.patch"
+    fi
+    if [[ "$DEBUG_BUILD" = "1" ]]; then
+      patch -p1 -b -i "$DIR/patches/makepkg/0003-enable-debug.patch"
+    fi
+  echo "::endgroup::"
+
+  echo "::group::/etc/makepkg_mingw.conf"
+    cat /etc/makepkg_mingw.conf
+  echo "::endgroup::"
+
+  echo "::group::/etc/profile"
+    cat /etc/profile
+  echo "::endgroup::"
+
+  echo "::group::/usr/share/makepkg/tidy/strip.sh"
+    cat /usr/share/makepkg/tidy/strip.sh
+  echo "::endgroup::"
+popd

.github/scripts/setup-repository.sh

@@ -13,7 +13,7 @@ pushd /
   echo "::endgroup::"
 
   echo "::group::Add WoArm64 repository"
-    patch -p1 -b -i "$DIR/patches/pacman/0001-add-woarm64-repository.patch"
+    patch -p1 -b -i "$DIR/patches/pacman/0002-add-woarm64-repositories.patch"
   echo "::endgroup::"
 
   echo "::group::Update packages database"

.github/workflows/build-package.yml

@@ -6,13 +6,6 @@ on:
       package_name:
         description: "Package name to build"
         type: string
-      needs:
-        description: "Parent workflow job dependencies"
-        type: string
-      dependencies:
-        description: "Install additional dependencies"
-        type: string
-        default: ""
       packages_repository:
         description: "MSYS2 packages repository to build from"
         type: string
@@ -21,37 +14,114 @@ on:
         description: "MSYS2 packages branch to build from"
         type: string
         default: "woarm64"
+      runner_arch:
+        description: "Architecture to build on"
+        type: string
+        default: "x86_64"
+      needs:
+        description: "Parent workflow job dependencies"
+        type: string
+      dependencies:
+        description: "Install additional dependencies"
+        type: string
+        default: ""
 
 defaults:
   run:
     shell: msys2 {0}
 
 env:
   GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+  CROSS_BUILD: ${{ inputs.runner_arch == 'aarch64' && '1' || '0' }}
+  CLEAN_BUILD: 1
 
 jobs:
   build:
     name: Build ${{ inputs.package_name }}
-    runs-on: windows-latest
+    runs-on: >-
+      ${{ fromJson(inputs.runner_arch == 'aarch64'
+        && '["Windows", "ARM64", "Blackhex"]'
+        || '["windows-latest"]') }}
 
     steps:
-      - uses: msys2/setup-msys2@v2
+      - name: Kill hanging processes
+        if: ${{ inputs.runner_arch == 'aarch64' }}
+        shell: powershell
+        run: |
+          tasklist
+          taskkill /F /FI 'MODULES eq msys-2.0.dll'
+          tasklist
+          Set-Location "${{ github.workspace }}"
+          Remove-Item -Recurse -Force -ErrorAction SilentlyContinue -Path packages
+          exit 0
+
+      - name: Fix Git long paths
+        if: ${{ inputs.runner_arch == 'aarch64' }}
+        shell: powershell
+        run: |
+          git config --global core.longpaths true
+
+      - name: Fix $PATH
+        if: ${{ inputs.runner_arch == 'aarch64' }}
+        shell: powershell
+        run: |
+          Write-Output "GITHUB_PATH: $env:GITHUB_PATH"
+          Write-Output "C:\Program Files\Git\usr\bin\" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
+
+      - uses: Windows-on-ARM-Experiments/setup-msys2@main
+        timeout-minutes: 10
         with:
-          msystem: ${{ contains(inputs.packages_repository, 'MINGW') && 'MINGW64' || 'MSYS' }}
-          update: true
-          cache: true
+          msystem: >-
+            ${{ contains(inputs.packages_repository, 'MINGW')
+              && ((inputs.runner_arch == 'aarch64') && 'MINGWARM64' || 'MINGW64')
+              || 'MSYS' }}
+          update: ${{ inputs.runner_arch == 'x86_64' }}
+          cache: ${{ inputs.runner_arch == 'x86_64' }}
 
       - name: Checkout repository
         uses: actions/checkout@v4
 
-      - name: Install dependencies
+      - name: Checkout ${{ inputs.packages_repository }} repository
+        uses: actions/checkout@v4
+        with:
+          repository: ${{ inputs.packages_repository }}
+          ref: ${{ inputs.packages_branch }}
+          sparse-checkout: ${{ inputs.package_name }}
+          path: ${{ github.workspace }}/packages
+
+      - name: Pacman hang workaround
+        if: ${{ inputs.runner_arch == 'aarch64' }}
+        run: |
+          `cygpath "${{ github.workspace }}"`/.github/scripts/pacman-workaround.sh
+
+      - name: First MSYS2 update
+        if: ${{ inputs.runner_arch == 'aarch64' }}
+        shell: powershell
+        run: |
+          msys2 -c 'pacman -Syuu --noconfirm'
+          exit 0
+
+      - name: Second MSYS2 update
+        if: ${{ inputs.runner_arch == 'aarch64' }}
+        shell: powershell
+        run: |
+          msys2 -c 'pacman -Syuu --noconfirm'
+
+      - name: Setup packages repository
+        if: ${{ inputs.runner_arch == 'aarch64' }}
         run: |
+          `cygpath "${{ github.workspace }}"`/.github/scripts/setup-repository.sh
+
+      - name: Install dependencies
+        run: >-
           pacman -S --noconfirm \
             git \
             mingw-w64-x86_64-github-cli \
             mingw-w64-x86_64-jq \
             base-devel \
-            ${{ contains(inputs.packages_repository, 'MINGW') && 'mingw-w64-cross-gcc mingw-w64-x86_64-ccache' || ' ccache' }} \
+            ${{ contains(inputs.packages_repository, 'MINGW')
+               && 'mingw-w64-cross-mingwarm64-gcc mingw-w64-cross-mingwarm64-windows-default-manifest mingw-w64-x86_64-gcc-libs'
+               || '' }} \
             ${{ inputs.dependencies }}
 
       - name: Download artifacts
@@ -69,51 +139,46 @@ jobs:
         run: |
           `cygpath "${{ github.workspace }}"`/.github/scripts/pthread-headers-hack-before.sh
 
-      - name: Checkout ${{ inputs.packages_repository }} repository
-        uses: actions/checkout@v4
-        with:
-          repository: ${{ inputs.packages_repository }}
-          ref: ${{ inputs.packages_branch }}
-          sparse-checkout: ${{ inputs.package_name }}
-          path: ${{ github.workspace }}/packages
+      - name: Setup MINGWARM64 environment
+        if: ${{ inputs.runner_arch == 'aarch64' }}
+        run: |
+          `cygpath "${{ github.workspace }}"`/.github/scripts/setup-mingwarm64.sh
 
       - name: Enable Ccache
         id: enable-ccache
         run: |
           `cygpath "${{ github.workspace }}"`/.github/scripts/enable-ccache.sh
 
       - name: Restore Ccache
-        uses:  actions/cache/restore@v4
+        uses: actions/cache/restore@v4
         with:
           path: ${{ github.workspace }}/ccache
-          key: main-ccache-${{ steps.enable-ccache.outputs.timestamp }}
-          restore-keys: main-ccache-
+          key: ${{ inputs.package_name }}-ccache-${{ steps.enable-ccache.outputs.timestamp }}
+          restore-keys: ${{ inputs.package_name }}-
 
       - name: Build ${{ inputs.package_name }}
         working-directory: ${{ github.workspace }}/packages/${{ inputs.package_name }}
         run: |
-          ccache -svv  || true
           `cygpath "${{ github.workspace }}"`/.github/scripts/build-package.sh ${{ inputs.packages_repository }}
-          ccache -svv || true
 
       - name: Save Ccache
         if: always()
-        uses:  actions/cache/save@v4
+        uses: actions/cache/save@v4
         with:
           path: ${{ github.workspace }}/ccache
-          key: main-ccache-${{ steps.enable-ccache.outputs.timestamp }}
+          key: ${{ inputs.package_name }}-ccache-${{ steps.enable-ccache.outputs.timestamp }}
 
       - name: Upload ${{ inputs.package_name }}
         uses: actions/upload-artifact@v4
         with:
           name: ${{ inputs.package_name }}
-          retention-days: 1
+          retention-days: 7
           path: ${{ github.workspace }}/packages/${{ inputs.package_name }}/*.pkg.tar.zst
 
       - name: Upload build folder
         if: failure()
         uses: actions/upload-artifact@v4
         with:
           name: ${{ inputs.package_name }}-build
-          retention-days: 1
+          retention-days: 3
           path: ${{ github.workspace }}/packages/${{ inputs.package_name }}/src