CI: skip qt, cairo, gobject related installs on OSX on travis

tacaswell · tacaswell · commit b86725ad215b · 2020-09-14T17:57:43.000-04:00
On 2020-09-12 pyqt5 replaced their wheels to have a minimum OSX
version of 10.13 which caused us to fallback to trying to build pyqt5
from the tar.gz.  This in turn failed (because we do not have any of
the qt development libraries installed and even if we did it would
take a while).  We have always been installing pyside2 from wheels,
but an older version (5.13.2) that has a fatal-to-us bug.  However
the previously published pyqt5 wheels were, despite being labeled as
10.12 actually complied against 10.13 and failed to import.  This
cause our test suite to decide that we did not have a valid qt binding
and skip the qt tests.  Now that pyqt5 is (correctly) not installing
we are falling back to pyside2 and hitting the bug in pyside2 (it is
reported to fixed in the next release 5.14.0 but that only has wheels
for 10.13).

PyGObject, pycairo, and cariocffi also do not install on OSX 10.12

This skips trying to install pycairo, pygobjoct, pyqt5, and pyside2 on
OSX on travis because they all fail to install on OSX 10.12.  It will
make our CI marginally faster and does not move the status quo of what
we were actually testing.
diff --git a/.travis.yml b/.travis.yml
@@ -133,19 +133,28 @@ install:
     # install was successful by trying to import the toolkit (sometimes, the
     # install appears to be successful but shared libraries cannot be loaded at
     # runtime, so an actual import is a better check).
-    python -mpip install --upgrade pycairo cairocffi>=0.8
-    python -mpip install --upgrade PyGObject &&
-      python -c 'import gi; gi.require_version("Gtk", "3.0"); from gi.repository import Gtk' &&
-      echo 'PyGObject is available' ||
-      echo 'PyGObject is not available'
-    python -mpip install --upgrade pyqt5 &&
-      python -c 'import PyQt5.QtCore' &&
-      echo 'PyQt5 is available' ||
-      echo 'PyQt5 is not available'
-    python -mpip install --upgrade pyside2 &&
-      python -c 'import PySide2.QtCore' &&
-      echo 'PySide2 is available' ||
-      echo 'PySide2 is not available'
+
+    # PyGObject, pycairo, and cariocffi do not install on OSX 10.12
+
+    # There are not functioning wheels available for OSX 10.12 (as of
+    # Sept 2020) for either pyqt5 (there are only wheels for 10.13+)
+    # or pyside2 (the latest version (5.13.2) with 10.12 wheels has a
+    # fatal to us bug, it was fixed in 5.14.0 which has 10.13 wheels)
+    if [[ $TRAVIS_OS_NAME != 'osx' ]]; then
+       python -mpip install --upgrade pycairo cairocffi>=0.8
+       python -mpip install --upgrade PyGObject &&
+         python -c 'import gi; gi.require_version("Gtk", "3.0"); from gi.repository import Gtk' &&
+         echo 'PyGObject is available' ||
+         echo 'PyGObject is not available'
+       python -mpip install --upgrade pyqt5 &&
+         python -c 'import PyQt5.QtCore' &&
+         echo 'PyQt5 is available' ||
+         echo 'PyQt5 is not available'
+       python -mpip install --upgrade pyside2 &&
+         python -c 'import PySide2.QtCore' &&
+         echo 'PySide2 is available' ||
+         echo 'PySide2 is not available'
+    fi
     python -mpip install --upgrade \
       -f https://extras.wxpython.org/wxPython4/extras/linux/gtk3/ubuntu-16.04 \
       wxPython &&
