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Omit OPENEXR_IMAGES_TAG from test image url if empty #1560

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Sep 19, 2023
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Omit OPENEXR_IMAGES_TAG from test image url if empty #1560

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8 changes: 6 additions & 2 deletions src/test/bin/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -16,8 +16,12 @@ if(BUILD_TESTING)

set(OPENEXR_IMAGES_TAG "v1.0" CACHE STRING "Bin test image repo tag")

set(images_url ${OPENEXR_IMAGES_REPO}/${OPENEXR_IMAGES_TAG})

if ("${OPENEXR_IMAGES_TAG}" STREQUAL "")
set(images_url ${OPENEXR_IMAGES_REPO})
else()
set(images_url ${OPENEXR_IMAGES_REPO}/${OPENEXR_IMAGES_TAG})
endif()

set(images
TestImages/GrayRampsHorizontal.exr
LuminanceChroma/Garden.exr
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24 changes: 24 additions & 0 deletions website/install.rst
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Expand Up @@ -329,6 +329,30 @@ shared object is produced.
``OPENEXR_DEFLATE_TAG``. This means do *not* use any existing
installation of ``libdeflate``.

Test Images Dependency
~~~~~~~~~~~~~~~~~~~~~~

The OpenEXR test suite relies on images from the `online test image
gallery
<https://github.com/AcademySoftwareFoundation/openexr-images>`_, which CMake
automatically downloads during configuration. You can provide an
alternate location for the test images via the ``OPENEXR_IMAGES_REPO``
and ``OPENEXR_IMAGES_TAG`` variables.

* ``OPENEXR_IMAGES_REPO`` and ``OPENEXR_IMAGES_TAG``

The images repo to auto-fetch for the test suite, and the tag to
sync it to. The default repo is
``https://github.com/AcademySoftwareFoundation/openexr-images.git``
and the tag is ``v1.0``.

Note that you can void downloading images by specifying a repo on the
local filesystem via a ``file:`` url:

.. code-block::

cmake -DOPENEXR_IMAGES_REPO=file:///my/clone/of/openexr-images -DOPENEXR_IMAGES_TAG=""

Namespace Options
~~~~~~~~~~~~~~~~~

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