matplotlib · jkseppan · Aug 2, 2020 · Jul 31, 2020 · Jul 31, 2020 · Jul 31, 2020
diff --git a/.travis.yml b/.travis.yml
@@ -87,6 +87,7 @@ matrix:
      env:
        - PRE=--pre
    - os: osx
+      osx_image: xcode9
      language: generic  # https://github.com/travis-ci/travis-ci/issues/2312
      only: master
      cache:
@@ -101,26 +102,15 @@ matrix:
  allow_failures:
    - python: "nightly"

-before_install: |
+before_install:
+- |
+  # Install libraries and set up ccache
  case "$TRAVIS_OS_NAME" in
  linux)
    export PATH=/usr/lib/ccache:$PATH
    ;;
  osx)
-    set -e
-    ci/silence brew update
-    brew uninstall numpy gdal postgis
-    brew unlink python@2
-    brew install python || brew upgrade python
-    brew install ffmpeg imagemagick mplayer ccache
-    hash -r
-    which python
-    python --version
-    set +e
-    # We could install ghostscript and inkscape here to test svg and pdf
-    # but this makes the test time really long.
-    # brew install ghostscript inkscape
-    export PATH=/usr/local/opt/python/libexec/bin:/usr/local/opt/ccache/libexec:$PATH
+    ci/osx-deps
    ;;
  esac

@@ -169,7 +159,7 @@ install:
      export CPPFLAGS=--coverage
    fi
  - |
-    python -mpip install -ve .  # Install Matplotlib.
+    python -mpip install -e .  # Install Matplotlib.
  - |
    if [[ $TRAVIS_OS_NAME != 'osx' ]]; then
      unset CPPFLAGS

diff --git a/ci/osx-deps b/ci/osx-deps
@@ -0,0 +1,77 @@
+#!/bin/bash
+
+set -euo pipefail
+
+fold_start() {
+    key=$1
+    title=$2
+    echo -e "travis_fold:start:$key\e[2K"
+    echo -e "travis_time:start:$key\e[2K"
+    tick="$(date +%s)"
+    echo "$title"
+}
+
+fold_end() {
+    key=$1
+    tock="$(date +%s)"
+    nano=000000000
+    echo -e "travis_time:end:$key:start=$tick$nano,finish=$tock$nano,duration=$((tock - tick))$nano\e[2K"
+    echo -e "travis_fold:end:$key\e[2K"
+}
+
+fold_start Python "Install Python 3.8 from python.org"
+curl -O https://www.python.org/ftp/python/3.8.5/python-3.8.5-macosx10.9.pkg
+sudo installer -package python-3.8.5-macosx10.9.pkg -target /
+sudo ln -s /usr/local/bin/python3 /usr/local/bin/python
+hash -r
+fold_end Python
+
+fold_start Qt4.8 "Install Qt 4.8 from qt.io"
+curl -O https://download.qt.io/archive/qt/4.8/4.8.7/qt-opensource-mac-4.8.7.dmg
+hdiutil attach qt-opensource-mac-4.8.7.dmg
+sudo installer -package '/Volumes/Qt 4.8.7/packages/Qt_headers.pkg' -target /
+sudo installer -package '/Volumes/Qt 4.8.7/packages/Qt_imports.pkg' -target /
+sudo installer -package '/Volumes/Qt 4.8.7/packages/Qt_libraries.pkg' -target /
+hdiutil detach '/Volumes/Qt 4.8.7'
+fold_end Qt4.8
+
+fold_start ccache 'Install ccache (compile it ourselves)'
+curl -O -L https://github.com/ccache/ccache/releases/download/v3.7.11/ccache-3.7.11.tar.xz
+tar xf ccache-3.7.11.tar.xz
+pushd ccache-3.7.11
+./configure --prefix=/usr/local
+make
+make install
+popd
+for compiler in clang clang++ cc gcc c++ g++; do
+  ln -sf ccache /usr/local/bin/$compiler
+done
+fold_end ccache
+
+fold_start pkg-config 'Install pkg-config (compile it ourselves)'
+curl -O -L https://dl.bintray.com/homebrew/mirror/pkg-config-0.29.2.tar.gz
+tar xf pkg-config-0.29.2.tar.gz
+pushd pkg-config-0.29.2
+./configure --disable-debug --prefix=/usr/local --disable-host-tool \
+            --with-internal-glib --with-pc-path=/usr/local/lib/pkgconfig:/usr/local/share/pkgconfig:/usr/local/pkgconfig \
+            --with-system-include-path=/usr/include
+make
+make install
+popd
+fold_end pkg-config
+
+fold_start libpng 'Install libpng (compile it ourselves)'
+curl -O -L https://downloads.sourceforge.net/libpng/libpng-1.6.37.tar.xz
+tar xf libpng-1.6.37.tar.xz
+pushd libpng-1.6.37
+./configure --disable-dependency-tracking --disable-silent-rules --prefix=/usr/local
+make
+make install
+popd
+fold_end libpng
+
+fold_start freetype 'Install freetype (just unpack into the build directory)'
+curl -O -L https://download.savannah.gnu.org/releases/freetype/freetype-2.6.1.tar.gz
+mkdir -p build
+tar -x -C build -f freetype-2.6.1.tar.gz
+fold_end freetype
diff --git a/lib/matplotlib/tests/test_backend_qt.py b/lib/matplotlib/tests/test_backend_qt.py
@@ -9,6 +9,12 @@
 import pytest


+try:
+    from matplotlib.backends.qt_compat import QtGui
+except ImportError:
+    pytestmark = pytest.mark.skip('No usable Qt5 bindings')
+
+
 @pytest.fixture
 def qt_core(request):
    backend, = request.node.get_closest_marker('backend').args

diff --git a/lib/matplotlib/tests/test_backends_interactive.py b/lib/matplotlib/tests/test_backends_interactive.py
@@ -18,6 +18,12 @@
 # versions so we don't fail on missing backends.

 def _get_testable_interactive_backends():
+    try:
+        from matplotlib.backends.qt_compat import QtGui  # noqa
+        have_qt5 = True
+    except ImportError:
+        have_qt5 = False
+
    backends = []
    for deps, backend in [
            (["cairo", "gi"], "gtk3agg"),
@@ -39,6 +45,8 @@ def _get_testable_interactive_backends():
            reason = "{} cannot be imported".format(", ".join(missing))
        elif backend == 'macosx' and os.environ.get('TF_BUILD'):
            reason = "macosx backend fails on Azure"
+        elif 'qt5' in backend and not have_qt5:
+            reason = "no usable Qt5 bindings"
        if reason:
            backend = pytest.param(
                backend,