[gtk: 1/3] ci: Add MSVC build

[Matthias Clasen <matthiasc src gnome org>]

commit d8f44c06e8cd417b4a0d1861f06ea68c49cb0fbd
Author: Xavier Claessens <xavier claessens collabora com>
Date:   Thu Apr 29 11:09:04 2021 -0400

    ci: Add MSVC build
    
    This script is copied from glib CI.

 .gitlab-ci.yml           | 16 ++++++++++++++++
 .gitlab-ci/test-msvc.bat | 14 ++++++++++++++
 2 files changed, 30 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 59dc2e6fec..5ded2c02f2 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -172,6 +172,22 @@ macos:
     paths:
       - "${CI_PROJECT_DIR}/_build/meson-logs"
 
+vs2017-x64:
+  extends: .only-default
+  # TODO: Uncomment this when ready to merge.
+  #only:
+  #  - branches@GNOME/gtk
+  stage: build
+  tags:
+    - win32-ps
+  needs: []
+  script:
+    - .gitlab-ci/test-msvc.bat
+  artifacts:
+    when: always
+    paths:
+      - "${CI_PROJECT_DIR}/_build/meson-logs"
+
 .flatpak-defaults:
   image: $FLATPAK_IMAGE
   stage: flatpak
diff --git a/.gitlab-ci/test-msvc.bat b/.gitlab-ci/test-msvc.bat
new file mode 100644
index 0000000000..294e9480df
--- /dev/null
+++ b/.gitlab-ci/test-msvc.bat
@@ -0,0 +1,14 @@
+@echo on
+:: vcvarsall.bat sets various env vars like PATH, INCLUDE, LIB, LIBPATH for the
+:: specified build architecture
+call "C:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\VC\Auxiliary\Build\vcvarsall.bat" x64
+@echo on
+
+:: FIXME: make warnings fatal
+pip3 install --upgrade --user meson==0.56.2  || goto :error
+meson _build || goto :error
+ninja -C _build || goto :error
+
+goto :EOF
+:error
+exit /b 1