From 206588bc29108819d6fb678b6fee67817bc3c4cb Mon Sep 17 00:00:00 2001
From: Egor Tensin <Egor.Tensin@gmail.com>
Date: Sat, 28 Nov 2020 02:08:51 +0300
Subject: refactoring

---
 action.yml | 108 +++++++++++++++++++++++++++++--------------------------------
 1 file changed, 52 insertions(+), 56 deletions(-)

diff --git a/action.yml b/action.yml
index f3de1ca..21d2e1e 100644
--- a/action.yml
+++ b/action.yml
@@ -34,18 +34,20 @@ runs:
   steps:
     - id: setup
       run: |
-        $x64 = '${{ inputs.platform }}' -eq 'x64'
-        $cygwin = '${{ inputs.cygwin }}' -eq '1'
-        $static_workaround = '${{ inputs.static }}' -eq '1'
+        New-Variable os -Value '${{ runner.os }}' -Option Constant
+
+        New-Variable linux_host -Value ($os -eq 'Linux') -Option Constant
+        New-Variable cygwin_host -Value ('${{ inputs.cygwin }}' -eq '1') -Option Constant
+        New-Variable windows_host -Value ($os -eq 'Windows' -and !$cygwin) -Option Constant
+
+        New-Variable x64 -Value ('${{ inputs.platform }}' -eq 'x64') -Option Constant
+        New-Variable static_workaround -Value ('${{ inputs.static }}' -eq '1') -Option Constant
 
         $prefix32 = 'i686-w64-mingw32'
         $prefix64 = 'x86_64-w64-mingw32'
         $prefix = if ($x64) { $prefix64 } else { $prefix32 }
 
-        if ('${{ runner.os }}' -eq 'Linux') {
-            # -------------------------------------------------------------
-            # Ubuntu
-            # -------------------------------------------------------------
+        if ($linux_host) {
             sudo apt install mingw-w64
 
             # Make the compilers use the POSIX threading model, whatever that
@@ -65,57 +67,51 @@ runs:
                     "/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 $cygwin_lib 'libwinpthread.dll.a')
-                }
+        } elseif ($cygwin_host) {
+            $cygwin_pkg = if ($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 $cygwin_lib 'libwinpthread.dll.a')
+            }
+        } elseif ($windows_host) {
+            $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 {
-                # -------------------------------------------------------------
-                # 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')
-                }
+                # 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')
             }
+        } else {
+            throw "Sorry, installing MinGW is unsupported on $os"
         }
 
         $gcc = $prefix + '-gcc'
-- 
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