Update .appveyor.yml to force platform-specific wheel

Because the MSYS people keep messing with their keys in ways that are not backwards-compatible and don't allow easy updating, the keyring and its installation method are also updated.

Author: RedFantom

.appveyor.yml

@@ -4,16 +4,19 @@ environment:
 build: off
 install:
   - set PATH=C:\msys64\usr\bin;%PATH%
-  # Load PGP Keys for Msys64
-  - bash -lc "curl -O http://repo.msys2.org/msys/x86_64/msys2-keyring-r21.b39fb11-1-any.pkg.tar.xz"
-  - bash -lc "curl -O http://repo.msys2.org/msys/x86_64/msys2-keyring-r21.b39fb11-1-any.pkg.tar.xz.sig"
-  - bash -lc "pacman-key --verify msys2-keyring-r21.b39fb11-1-any.pkg.tar.xz.sig"
-  - bash -lc "pacman -U --noconfirm --config <(echo) msys2-keyring-r21.b39fb11-1-any.pkg.tar.xz"
-  # Kill gpg-agent due to bug in MSYS
-  - TaskKill /IM gpg-agent.exe /F
   # Download and unpack zstd for win64 to unpack MSYS packages
   - appveyor DownloadFile https://github.com/facebook/zstd/releases/download/v1.4.8/zstd-v1.4.8-win64.zip
   - 7z e zstd-v1.4.8-win64.zip -ozstd -y
+  # Load PGP Keys for Msys64
+  - appveyor DownloadFile https://repo.msys2.org/msys/x86_64/msys2-keyring-1~20210213-2-any.pkg.tar.zst
+  - appveyor DownloadFile https://repo.msys2.org/msys/x86_64/msys2-keyring-1~20210213-2-any.pkg.tar.zst.sig
+  - dir
+  - zstd\zstd.exe -d msys2-keyring-1~20210213-2-any.pkg.tar.zst
+  - bash -lc "cd /c/projects/python-tksvg; ls -l; pacman -U --noconfirm --config <(echo) msys2-keyring-1~20210213-2-any.pkg.tar"
+  # Verify signature AFTER updating the keyring because MSYS messes with keys too much
+  - bash -lc "cd /c/projects/python-tksvg; ls -l; pacman-key --verify msys2-keyring-1~20210213-2-any.pkg.tar.zst.sig"
+  # Kill gpg-agent due to bug in MSYS
+  - START /wait taskkill /f /im gpg-agent.exe
   # Download and install zstd for MSYS due to bug in MSYS
   - appveyor DownloadFile http://repo.msys2.org/mingw/x86_64/mingw-w64-x86_64-zstd-1.4.8-2-any.pkg.tar.zst
   - zstd\zstd.exe -d mingw-w64-x86_64-zstd-1.4.8-2-any.pkg.tar.zst
@@ -22,7 +25,6 @@ install:
   - bash -lc "cd /c/projects/python-tksvg; ls -l; pacman --noconfirm -U mingw-w64-x86_64-zstd-1.4.8-2-any.pkg.tar.gz"
   # Download and install pacman for MSYS due to bug in MSYS
   - appveyor DownloadFile http://repo.msys2.org/msys/x86_64/pacman-5.2.2-9-x86_64.pkg.tar.zst
-  - 7z e zstd-v1.4.8-win64.zip -ozstd -y
   - zstd\zstd.exe -d pacman-5.2.2-9-x86_64.pkg.tar.zst
   - dir
   - 7z a -tgzip pacman-5.2.2-9-x86_64.pkg.tar.gz pacman-5.2.2-9-x86_64.pkg.tar
@@ -42,9 +44,9 @@ install:
   - 7z e Dependencies_x64_Release.zip -odeps -y
   # Add %PYTHON% to the path for libffi-7.dll
   - set PATH=%PYTHON%;C:\msys64\mingw64\lib;%PATH%
+  - "%PYTHON%\\python.exe -m pip install -U pip setuptools wheel"
 build_script:
-  - "%PYTHON%\\python.exe setup.py build bdist_wheel"
-  - "%PYTHON%\\python.exe setup.py install"
+  - "%PYTHON%\\python.exe setup.py build bdist_wheel --plat-name win_amd64"
   # Simplify PATH so as to test binary distribution
   - set PATH=C:\WINDOWS\system32;C:\WINDOWS
 test_script: