simplify usage of homebrew on CI macos-11. (#1234)

homebrew installs are taking an extreme amount of time on macos-11,
with the following message:
  Warning: You are using macOS 11.
  We (and Apple) do not provide support for this old version.
  It is expected behaviour that some formulae will fail to build in this old version.
  It is expected behaviour that Homebrew will be buggy and slow.
To alleviate this pain skip the installation of jing and all it's
dependencies on macos-11.

diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index 31ad8ecedd8896fd0bf26d90e070f463e6d54e6a..cdd796ec11deb99b0f82e8e18488501ec82567e0 100644 (file)
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -75,7 +75,10 @@ jobs:
         # brew update # skip update for now to avoid link issues AND many slow dependency upGRADES.
         brew install ninja
         brew install docbook docbook-xsl fop gnu-sed
-        brew install jing-trang
+        # brew install is taking forever on macos-11, skip jing-trang and all it's dependencies.
+        if [ "${{ matrix.os }}" != "macos-11" ]; then
+          brew install jing-trang
+        fi
 
     - name: Script
       env: