Appveyor: test all imagetypes in imagecomp tests only once

jankatins · jankatins · commit 833f903e5226 · 2016-07-03T17:14:57.000+02:00
This is mainly because the additional tests (which are otherwise skipped)
increase the runtime of one test run (we have 4) from  13min to 30mins and
thereby increasing one complete Appveyor run from 40min to 2 hours. With this
change, we only have 30+3*13min.

The py27 test was chosen because up it made the most problems during this
Appveyor/Windows fixing round...
diff --git a/appveyor.yml b/appveyor.yml
@@ -23,21 +23,25 @@ environment:
       CONDA_PY: "27"
       CONDA_NPY: "18"
       PYTHON_VERSION: "2.7"
+      TEST_ALL_IMAGES: "no"
       CONDA_INSTALL_LOCN: "C:\\Miniconda"
     - TARGET_ARCH: "x64"
       CONDA_PY: "27"
       CONDA_NPY: "18"
       PYTHON_VERSION: "2.7"
+      TEST_ALL_IMAGES: "yes" # only once, pick the one which made the most problems
       CONDA_INSTALL_LOCN: "C:\\Miniconda-x64"
     - TARGET_ARCH: "x64"
       CONDA_PY: "34"
       CONDA_NPY: "110"
       PYTHON_VERSION: "3.4"
+      TEST_ALL_IMAGES: "no"
       CONDA_INSTALL_LOCN: "C:\\Miniconda3-x64"
     - TARGET_ARCH: "x64"
       CONDA_PY: "35"
       CONDA_NPY: "110"
       PYTHON_VERSION: "3.5"
+      TEST_ALL_IMAGES: "no"
       CONDA_INSTALL_LOCN: "C:\\Miniconda35-x64"
 
 # We always use a 64-bit machine, but can build x86 distributions
@@ -121,10 +125,10 @@ test_script:
   - cmd: conda install -q -c menpo ffmpeg # a repackaged version
   # This install sometimes failed randomly :-(
   #- cmd: choco install imagemagick
-  - cmd: choco install inkscape
-  - set "PATH=%PATH%;C:\Program Files\Inkscape\inkscape.com"
-  - dir "C:\Program Files\Inkscape\"
-
+  # only install inkscape during one test run as it increases the runtime of one
+  # test run from 13 min -> 30 min
+  - cmd: if x%TEST_ALL_IMAGES% == xyes; choco install inkscape
+  - cmd: if x%TEST_ALL_IMAGES% == xyes; set "PATH=%PATH%;C:\Program Files\Inkscape\inkscape.com"
   # Test import of tkagg backend
   - python -c "import matplotlib as m; m.use('tkagg'); import matplotlib.pyplot as plt; print(plt.get_backend())"
   # tests
