initial commit

1 files changed, 133 insertions, 0 deletions

diff --git a/action.yml b/action.yml
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+++ b/action.yml
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+name: Install MinGW
+description: Install MinGW-w64
+
+inputs:
+  platform:
+    description: Target platform
+    required: false
+    default: x64
+  cygwin:
+    description: Install inside Cygwin
+    required: false
+    default: 0
+  static:
+    description: Enable static linking workaround
+    required: False
+    default: 1
+
+outputs:
+  prefix:
+    description: Cross-compilation toolchain prefix
+    value: '${{ steps.setup.outputs.prefix }}'
+  gcc:
+    description: gcc binary name
+    value: '${{ steps.setup.outputs.gcc }}'
+  gxx:
+    description: g++ binary name
+    value: '${{ steps.setup.outputs.gxx }}'
+  windres:
+    description: windres binary name
+    value: '${{ steps.setup.outputs.windres }}'
+
+runs:
+  using: composite
+  steps:
+    - id: setup
+      run: |
+        $x64 = '${{ inputs.platform }}' -eq 'x64'
+        $cygwin = '${{ inputs.cygwin }}' -eq '1'
+        $static_workaround = '${{ inputs.static }}' -eq '1'
+
+        $prefix32 = 'i686-w64-mingw32'
+        $prefix64 = 'x86_64-w64-mingw32'
+        $prefix = if ($x64) { $prefix64 } else { $prefix32 }
+
+        if ('${{ runner.os }}' -eq 'Linux') {
+            # -------------------------------------------------------------
+            # Ubuntu
+            # -------------------------------------------------------------
+            sudo apt install mingw-w64
+
+            # Make the compilers use the POSIX threading model, whatever that
+            # is.  Without it, the stuff from <mutex>/<thread>/etc. doesn't
+            # compile.  Of course, it makes the binaries depend on
+            # libwinpthread-1.dll, but what you gonna do?
+
+            sudo update-alternatives --set "$prefix32-gcc" "/usr/bin/$prefix32-gcc-posix"
+            sudo update-alternatives --set "$prefix32-g++" "/usr/bin/$prefix32-g++-posix"
+            sudo update-alternatives --set "$prefix64-gcc" "/usr/bin/$prefix64-gcc-posix"
+            sudo update-alternatives --set "$prefix64-g++" "/usr/bin/$prefix64-g++-posix"
+
+            if ($static_workaround) {
+                sudo rm `
+                    "/usr/$prefix32/lib/libpthread.dll.a" `
+                    "/usr/$prefix32/lib/libwinpthread.dll.a" `
+                    "/usr/$prefix64/lib/libpthread.dll.a" `
+                    "/usr/$prefix64/lib/libwinpthread.dll.a"
+            }
+        } elseif ('${{ runner.os }}' -eq 'Windows') {
+            if ($cygwin) {
+                # -------------------------------------------------------------
+                # Cygwin
+                # -------------------------------------------------------------
+                $cygwin_pkg = if ($x64) { 'mingw64-x86_64-gcc-g++' } else { 'mingw64-i686-gcc-g++' }
+                choco.exe install -y --no-progress --source=cygwin $cygwin_pkg
+
+                if ($static_workaround) {
+                    $cygwin_lib = Join-Path C: tools cygwin usr $prefix sys-root mingw lib
+                    Remove-Item (Join-Path $cygwin_lib 'libpthread.dll.a')
+                    Remove-Item (Join-Path $cygwin_lib 'libwinpthread.dll.a')
+                }
+            } else {
+                # -------------------------------------------------------------
+                # Windows
+                # -------------------------------------------------------------
+                $mingw32 = 'mingw32'
+                $mingw64 = 'mingw64'
+                $mingw = if ($x64) { $mingw64 } else { $mingw32 }
+
+                $mingw_install = Join-Path C: ProgramData chocolatey lib mingw tools install
+
+                $mingw32_root = Join-Path $mingw_install $mingw32
+                $mingw64_root = Join-Path $mingw_install $mingw64
+                $mingw_root = Join-Path $mingw_install $mingw
+
+                $mingw32_bin = Join-Path $mingw32_root bin
+                $mingw64_bin = Join-Path $mingw64_root bin
+                $mingw_bin = Join-Path $mingw_root bin
+
+                $mingw_lib = Join-Path $mingw_root $prefix lib
+
+                if ($x64) {
+                    # Assuming the 64-bit version is installed.  If 32-bit
+                    # version is installed, we won't detect that.  But it's not
+                    # _that_ important, and we save a lot of time.
+                    choco.exe install -y --no-progress mingw
+                    echo $mingw64_bin >> $env:GITHUB_PATH
+                } else {
+                    # Assuming the 64-bit version is installed.
+                    choco.exe uninstall -y --no-progress mingw
+                    choco.exe install -y --no-progress --x86 mingw
+                    echo $mingw32_bin >> $env:GITHUB_PATH
+                }
+
+                if ($static_workaround) {
+                    Remove-Item (Join-Path $mingw_lib 'libpthread.dll.a')
+                    Remove-Item (Join-Path $mingw_lib 'libwinpthread.dll.a')
+                }
+            }
+        }
+
+        $gcc = $prefix + '-gcc'
+        $gxx = $prefix + '-g++'
+        $windres = $prefix = '-windres'
+
+        echo "::set-output name=prefix::$prefix"
+        echo "::set-output name=gcc::$gcc"
+        echo "::set-output name=gxx::$gxx"
+        echo "::set-output name=windres::$windres"
+      shell: pwsh
+
+branding:
+  icon: star
+  color: green