Merge branch 'master' into index_chunksize

.github/PULL_REQUEST_TEMPLATE.md

@@ -20,7 +20,9 @@ detail.  Why is this change required?  What problem does it solve?-->
 
 <!-- Note that some of these check boxes may not apply to all pull requests -->
 
-- [ ] Code passes flake8 checker
+- [ ] pass `flake8 yt/`
+- [ ] pass `isort -rc . --check-only`
+- [ ] pass `black --check yt/`
 - [ ] New features are documented, with docstrings and narrative docs
 - [ ] Adds a test for any bugs fixed. Adds tests for new features.
 

.github/config.yml

@@ -0,0 +1,24 @@
+# Configuration for new-issue-welcome - https://github.com/behaviorbot/new-issue-welcome
+
+# Comment to be posted to on first time issues
+newIssueWelcomeComment: >
+  Hi, and welcome to yt!  Thanks for opening your first issue.  We have an issue
+  template that helps us to gather relevant information to help diagnosing and
+  fixing the issue.
+
+# Configuration for new-pr-welcome - https://github.com/behaviorbot/new-pr-welcome
+
+# Comment to be posted to on PRs from first time contributors in your repository
+newPRWelcomeComment: >
+  Hi!  Welcome, and thanks for opening this pull request.  We have some guidelines for
+  new pull requests, and soon you'll hear back about the results of our tests and
+  continuous integration checks.  Thank you for your contribution!
+
+# Configuration for first-pr-merge - https://github.com/behaviorbot/first-pr-merge
+
+# Comment to be posted to on pull requests merged by a first time user
+firstPRMergeComment: >
+  Hooray!  Congratulations on your first merged pull request!  We hope we keep
+  seeing you around!  :fireworks:
+
+# It is recommend to include as many gifs and emojis as possible

.github/mergeable.yml

@@ -0,0 +1,13 @@
+# config file for mergeable: https://github.com/mergeability/mergeable
+version: 2
+mergeable:
+  - when: pull_request.*
+    validate:
+      - do: title
+        must_exclude:
+          regex: ^\[?WIP\b
+          message: "WIP pull requests can't be merged."
+      - do: label
+        must_include:
+          regex: 'bug|enhancement|new feature|docs|infrastructure'
+          message: "Please label this pull request with one of: bug, enhancement, new feature, docs or infrastructure."

.gitignore

@@ -55,10 +55,10 @@ yt/utilities/lib/interpolators.c
 yt/utilities/lib/kdtree.c
 yt/utilities/lib/lenses.c
 yt/utilities/lib/line_integral_convolution.c
-yt/utilities/lib/mesh_construction.cpp
-yt/utilities/lib/mesh_intersection.cpp
-yt/utilities/lib/mesh_samplers.cpp
-yt/utilities/lib/mesh_traversal.cpp
+yt/utilities/lib/embree_mesh/mesh_construction.cpp
+yt/utilities/lib/embree_mesh/mesh_intersection.cpp
+yt/utilities/lib/embree_mesh/mesh_samplers.cpp
+yt/utilities/lib/embree_mesh/mesh_traversal.cpp
 yt/utilities/lib/mesh_triangulation.c
 yt/utilities/lib/mesh_utilities.c
 yt/utilities/lib/pixelization_routines.cpp
@@ -92,6 +92,10 @@ yt/utilities/lib/image_samplers.c
 tests/results/*
 doc/build/*
 doc/source/reference/api/generated/*
+doc/source/reference/api/yt*
+doc/cheatsheet.aux
+doc/cheatsheet.log
+doc/cheatsheet.pdf
 doc/_temp/*
 doc/source/quickstart/.ipynb_checkpoints/
 dist

.travis.yml

@@ -82,6 +82,11 @@ jobs:
       python: 3.6
       script: flake8 yt/
 
+    - stage: Lint
+      python: 3.6
+      script: isort --check-only -rc yt/
+      script: black --check yt/
+
     - stage: tests
       name: "Python: 3.6 Minimal Dependency Unit Tests"
       python: 3.6