RF: automatically update to latest tag

.travis.yml

@@ -2,6 +2,7 @@ language:
   - objective-c
 
 env:
+  global: LATEST_TAG=1
   matrix:
     - VERSION=2.7.7
     - VERSION=3.3.5
@@ -12,8 +13,10 @@ install:
     - get_python_environment macpython $VERSION venv
     - pip install delocate
     - cd Pillow
-    # Needs patch for python3 / homebrew detection
-    - patch -p1 < ../pillow.patch
+    - if [ -n "$LATEST_TAG" ]; then
+      git fetch --tags ;
+      git checkout `git describe --abbrev=0 --tags` ;
+      fi
     - python setup.py bdist_wheel
     - delocate-wheel dist/*.whl
     - rename_wheels dist/*.whl

README.rst

@@ -1,26 +1,38 @@
-####################
-Pillow wheel builder
-####################
+########################
+Pillow OSX wheel builder
+########################
 
-Repository to build OSX wheels for Pillow.
+Repository to build Pillow wheels.
+
+By default, this repo builds the most recent tagged version of the Pillow
+repo. If you want to build a specific version, unset ``LATEST_TAG`` in the
+``.travis.yml`` file, and update the Pillow submodule to the version you
+want to build.
 
 To update:
 
-* Update Pillow with version you want to build:
+* Update Pillow submodule with version you want to build:
 
-    * cd Pillow && git pull && git checkout DESIRED_TAG
-    * cd .. && git add Pillow
+    * cd Pillow
+    * git pull && git checkout DESIRED_TAG
+    * cd ..
+    * git add Pillow
+    * git commit
 
-where "DESIRED_TAG" is a Pillow git tag like "2.4.0".
+* Check minimum numpy versions to build against in ``.travis.yml`` file.  You
+  need to build against the earliest numpy that Pillow is compatible with;
+  see `forward, backward numpy compatibility
+  <http://stackoverflow.com/questions/17709641/valueerror-numpy-dtype-has-the-wrong-size-try-recompiling/18369312#18369312>`_
 
 The wheels get uploaded to a `rackspace container
 <http://a365fff413fe338398b6-1c8a9b3114517dc5fe17b7c3f8c63a43.r19.cf2.rackcdn.com>`_
-to which I have the password.  The password is encrypted to this exact repo in
-the ``.travis.yml`` file, so the upload won't work for you from another repo.
-Either contact me to get set up, or use another upload service such as github -
-see for example Jonathan Helmus' `sckit-image wheels builder
-<https://github.com/jjhelmus/scikit-image-ci-wheel-builder>`_
+pointed to by http://wheels.scipy-image.org.  The credentials for this container
+are encrypted to this specific repo in the ``.travis.yml`` file, so the upload
+won't work for you from another repo.  Either contact me to get set up, or
+use another upload service such as github - see for example Jonathan Helmus'
+`sckit-image wheels builder
+<https://github.com/jjhelmus/Pillow-ci-wheel-builder>`_
 
-I got the rackspace password from Olivier Grisel - we might be able to share
+I got the rackspace credentials from Olivier Grisel - we might be able to share
 this account across projects - again - please contact me or Olivier if you'd
 like this to happen.