drop Cygwin, it's obsolete

1 files changed, 3 insertions, 63 deletions

diff --git a/action.yml b/action.yml
index 511433d..4d7f606 100644
--- a/action.yml
+++ b/action.yml
@@ -10,18 +10,10 @@ inputs:
     description: Target platform
     required: false
     default: x64
-  cygwin:
-    description: Install Cygwin packages
-    required: false
-    default: 0
   cc:
     description: Set up cc/clang/c++/clang++ executables
     required: false
     default: 1
-  hardlinks:
-    description: On Cygwin, replace executable symlinks with hardlinks
-    required: false
-    default: 0
 
 outputs:
   clang:
@@ -39,8 +31,7 @@ runs:
         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_host) -Option Constant
+        New-Variable windows_host -Value ($os -eq 'Windows') -Option Constant
 
         New-Variable version -Value ('${{ inputs.version }}') -Option Constant
         New-Variable latest -Value ($version -eq 'latest') -Option Constant
@@ -64,9 +55,6 @@ runs:
             if ($script:linux_host) {
                 sudo apt-get update
                 sudo DEBIAN_FRONTEND=noninteractive apt-get install -yq --no-install-recommends $Packages
-            } elseif ($script:cygwin_host) {
-                $choco = Locate-Choco
-                & $choco install $Packages -y --no-progress --source=cygwin
             } elseif ($script:windows_host) {
                 $choco = Locate-Choco
                 & $choco upgrade $Packages -y --no-progress --allow-downgrade
@@ -141,21 +129,6 @@ runs:
             $packages = $pkg_clang,$pkg_llvm,$pkg_gxx
 
             Install-Package $packages
-        } elseif ($cygwin_host) {
-            if (!$x64) {
-                echo @'
-        ::warning ::
-        32-bit-targeting Clang is unavailable on 64-bit Cygwin.
-        Please use 32-bit Cygwin instead.
-        If you _are_ using 32-bit Cygwin, please ignore this message.
-        '@
-            }
-
-            # IDK why, but without libiconv-devel, even a "Hello, world!"
-            # C++ app cannot be compiled as of December 2020. Also, libstdc++
-            # is required; it's simpler to install gcc-g++ for all the
-            # dependencies.
-            Install-Package clang gcc-g++ libiconv-devel llvm
         } elseif ($windows_host) {
             Install-Package llvm
 
@@ -173,8 +146,7 @@ runs:
         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_host) -Option Constant
+        New-Variable windows_host -Value ($os -eq 'Windows') -Option Constant
 
         New-Variable cc -Value ('${{ inputs.cc }}' -eq '1') -Option Constant
 
@@ -192,12 +164,10 @@ runs:
             $exe_path = (Get-Command $Exe).Path
             $link_dir = if ($script:windows_host) { Split-Path $exe_path } else { '/usr/local/bin' }
             $link_name = if ($script:windows_host) { "$LinkName.exe" } else { $LinkName }
-            $link_path = if ($script:cygwin_host) { "$link_dir/$link_name" } else { Join-Path $link_dir $link_name }
+            $link_path = Join-Path $link_dir $link_name
             echo "Creating link $link_path -> $exe_path"
             if ($script:linux_host) {
                 sudo ln -f -s $exe_path $link_path
-            } elseif ($script:cygwin_host) {
-                ln.exe -f -s $exe_path $link_path
             } elseif ($script:windows_host) {
                 New-Item -ItemType HardLink -Path $link_path -Value $exe_path -Force | Out-Null
             }
@@ -215,36 +185,6 @@ runs:
         }
       shell: pwsh
 
-    - run: |
-        New-Variable cygwin_host -Value ('${{ inputs.cygwin }}' -eq '1') -Option Constant
-        New-Variable hardlinks -Value ('${{ inputs.hardlinks }}' -eq '1') -Option Constant
-
-        if ($cygwin_host -and $hardlinks) {
-            # clang/clang++ are Cygwin symlinks, pointing to clang-X.exe. It's
-            # convenient to make proper executables instead so that they can be
-            # called from Windows' command prompt.
-            echo @'
-        while IFS= read -d '' -r link_path; do
-            dest_path="$( readlink --canonicalize-existing -- "$link_path" )"
-            dest_ext=".${dest_path##*.}"
-            [ "$dest_ext" == ".$dest_path" ] && dest_ext=
-            link_ext=".${link_path##*.}"
-            [ "$link_ext" == ".$link_path" ] && link_ext=
-            echo "Removing symlink $link_path" && rm -f -- "$link_path"
-            [ "$link_ext" != "$dest_ext" ] && echo "${PATHEXT//\;/
-        }" | grep -q --ignore-case --line-regexp -F -- "$dest_ext" && link_path="$link_path$dest_ext"
-            echo "Creating hardlink $link_path -> $dest_path" && ln -- "$dest_path" "$link_path"
-        done < <( find /usr/local/bin /usr/bin \
-                       -type l '-(' \
-                       -path '/usr/bin/clang*' -o \
-                       -path '/usr/bin/llvm*' -o \
-                       -path /usr/local/bin/cc -o \
-                       -path /usr/local/bin/c++ \
-                       '-)' -print0 )
-        '@ | & bash.exe --login -o errexit -o nounset -o pipefail -o igncr
-        }
-      shell: pwsh
-
 branding:
   icon: star
   color: green