Attempt multi-os build

.drone.yml

@@ -17,7 +17,8 @@ steps:
   when:
     status:
     - success
-- name: Build binary
+- name: Build binary (Linux)
+  depends_on: Clone skopeo source repository
   image: bv11-cr01.bessems.eu/proxy/library/golang
   commands:
   - apt-get update && apt-get install -y go-md2man
@@ -36,3 +37,25 @@ steps:
     GIT_APIKEY:
       from_secret: git_apikey
     GIT_USERNAME: djpbessems
+- name: Build binary (Windows)
+  depends_on: Clone skopeo source repository
+  image: bv11-cr01.bessems.eu/proxy/library/golang
+  commands:
+  - apt-get update && apt-get install -y go-md2man
+  - |
+    GOOS=windows \
+    make \
+      BUILDTAGS=containers_image_openpgp \
+      GO_DYN_FLAGS=
+  - ls bin
+  # - bin/skopeo --version
+  # - |
+  #   curl \
+  #     --header "Authorization: token $GIT_APIKEY" \
+  #     --upload-file bin/skopeo \
+  #     https://code.spamasaurus.com/api/packages/$GIT_USERNAME/generic/skopeo/$SKOPEO_VERSION/skopeo
+  environment:
+    CGO_ENABLED: 0
+    GIT_APIKEY:
+      from_secret: git_apikey
+    GIT_USERNAME: djpbessems