ci: windows: Merge windows VS and mingw images

There's a lot of redundant data in the two images, and the image storage
costs are starting to be noticable; so merge these images.

Author: nbyavuz

.cirrus.yml

@@ -122,12 +122,7 @@ task:
     - env:
         PACKERFILE: packer/windows.pkr.hcl
         SCRIPTS: scripts/windows*
-
-      matrix:
-        - env:
-            TASK_NAME: windows-ci-vs-2019
-        - env:
-            TASK_NAME: windows-ci-mingw64
+        TASK_NAME: windows-ci
 
   env:
     IMAGE_NAME: ${PREFIX}-${TASK_NAME}
@@ -377,15 +372,15 @@ task:
 task:
   name: 'Testing VM Image: ${PREFIX}-${IMAGE_NAME}'
   env:
-    IMAGE_NAME: windows-ci-vs-2019
+    IMAGE_NAME: windows-ci
   depends_on:
     - vmbuild-${IMAGE_NAME}
   compute_engine_instance:
     image_project: $GCP_PROJECT
     image: family/${PREFIX}-${IMAGE_NAME}
     platform: windows
 
-  test_script:
+  test_vs_script:
     - ver
     - set
     - where perl
@@ -395,21 +390,7 @@ task:
     - bison --version
     - flex --version
 
-
-task:
-  name: 'Testing VM Image: ${PREFIX}-${IMAGE_NAME}'
-  env:
-    IMAGE_NAME: windows-ci-mingw64
-  depends_on:
-    - vmbuild-${IMAGE_NAME}
-  compute_engine_instance:
-    image_project: $GCP_PROJECT
-    image: family/${PREFIX}-${IMAGE_NAME}
-    platform: windows
-
-  test_script:
-    - ver
-    - set
+  test_mingw_script:
     - C:\msys64\usr\bin\bash.exe -lc 'where perl'
     - C:\msys64\usr\bin\bash.exe -lc 'perl --version'
     - C:\msys64\usr\bin\bash.exe -lc 'bison --version'

packer/windows.pkr.hcl

@@ -27,23 +27,9 @@ locals {
 
   windows_gcp_images = [
     {
-      task_name = "windows-ci-vs-2019"
-    },
-    {
-      task_name = "windows-ci-mingw64"
-    },
-    {
-      task_name = "windows_ci_vs_2019"
-    },
-    {
-      task_name = "windows_ci_mingw64"
+      task_name = "windows-ci"
     },
   ]
-
-  only = {
-    vs_2019 = ["googlecompute.windows-ci-vs-2019"],
-    mingw64 = ["googlecompute.windows-ci-mingw64"],
-  }
 }
 
 source "googlecompute" "windows" {
@@ -165,13 +151,11 @@ build {
       # this could be reduntant
       "$env:MSYSTEM = 'UCRT64'",
     ]
-    only = local.only.mingw64
   }
 
   provisioner "powershell" {
     execute_command = var.execute_command
     script = "scripts/windows_install_mingw64.ps1"
-    only = local.only.mingw64
   }
 
   # Change default console code page (0) with Windows code page (65001) to get rid of warnings in postgres tests
@@ -181,7 +165,6 @@ build {
       "$ErrorActionPreference = 'Stop'",
       "chcp 65001"
     ]
-    only = local.only.mingw64
   }
 
   # MSYS2 might spawn processes that will stay around in the background forever.
@@ -192,27 +175,23 @@ build {
       "$ErrorActionPreference = 'Stop'",
       "taskkill /F /FI \"MODULES eq msys-2.0.dll\""
     ]
-    only = local.only.mingw64
   }
   ### end of mingw installations
 
   ### vs-2019 installations
   provisioner "powershell" {
     execute_command = var.execute_command
     script = "scripts/windows_install_winflexbison.ps1"
-    only = local.only.vs_2019
   }
 
   provisioner "powershell" {
     execute_command = var.execute_command
     script = "scripts/windows_install_pg_deps.ps1"
-    only = local.only.vs_2019
   }
 
   provisioner "powershell" {
     execute_command = var.execute_command
     script = "scripts/windows_install_vs_2019.ps1"
-    only = local.only.vs_2019
   }
   ### end of vs-2019 installations
 }