sync 1.1.4 >> feature 1.2 [full merge, no squash]

.drone.yml

@@ -39,6 +39,14 @@ steps:
     # when Image has defined CUDa version we can switch to this package spec "nvidia-dali-cuda${CUDA_VERSION%%.*}0"
     - pip install --extra-index-url https://developer.download.nvidia.com/compute/redist nvidia-dali-cuda100 --upgrade-strategy only-if-needed
     - pip list
+    # todo: remove unzip install after new nigtly docker is created
+    - apt-get update -qq
+    - apt-get install -y --no-install-recommends unzip
+    # get legacy checkpoints
+    - wget https://pl-public-data.s3.amazonaws.com/legacy/checkpoints.zip -P legacy/
+    - unzip -o legacy/checkpoints.zip -d legacy/
+    - ls -l legacy/checkpoints/
+    # testing...
     - python -m coverage run --source pytorch_lightning -m pytest pytorch_lightning tests -v --durations=25 # --flake8
     # Running special tests
     - sh tests/special_tests.sh

.github/BECOMING_A_CORE_CONTRIBUTOR.md

@@ -1,14 +1,14 @@
 # How to become a core contributor
 
-Thanks for your interest in joining the Lightning team! We’re a rapidly growing project which is poised to become the go-to framework for DL researchers! 
-We're currently recruiting for a team of 5 core maintainers. 
+Thanks for your interest in joining the Lightning team! We’re a rapidly growing project which is poised to become the go-to framework for DL researchers!
+We're currently recruiting for a team of 5 core maintainers.
 
 As a core maintainer you will have a strong say in the direction of the project. Big changes will require a majority of maintainers to agree.
 
-### Code of conduct  
+### Code of conduct
 First and foremost, you'll be evaluated against [these core values](https://github.com/PyTorchLightning/pytorch-lightning/blob/master/.github/CONTRIBUTING.md). Any code we commit or feature we add needs to align with those core values.
 
-### The bar for joining the team   
+### The bar for joining the team
 Lightning is being used to solve really hard problems at the top AI labs in the world. As such, the bar for adding team members is extremely high. Candidates must have solid engineering skills, have a good eye for user experience, and must be a power user of Lightning and PyTorch.
 
 With that said, the Lightning team will be diverse and a reflection of an inclusive AI community. You don't have to be an engineer to contribute! Scientists with great usability intuition and PyTorch ninja skills are welcomed!
@@ -36,26 +36,26 @@ Pleasant/helpful tone.
 - Code is NOT overly engineered or hard to read
 - Ask yourself, could a non-engineer understand what’s happening here?
 - Make sure new tests are written
-- Is this NECESSARY for Lightning? There are some PRs which are just purely about adding engineering complexity which have no place in Lightning. 
+- Is this NECESSARY for Lightning? There are some PRs which are just purely about adding engineering complexity which have no place in Lightning.
 Guidance
 - Some other PRs are for people who are wanting to get involved and add something unnecessary. We do want their help though! So don’t approve the PR, but direct them to a Github issue that they might be interested in helping with instead!
-- To be considered for core contributor, please review 10 PRs and help the authors land it on master. Once you've finished the review, ping me 
+- To be considered for core contributor, please review 10 PRs and help the authors land it on master. Once you've finished the review, ping me
 for a sanity check. At the end of 10 PRs if your PR reviews are inline with expectations described above, then you can merge PRs on your own going forward,
 otherwise we'll do a few more until we're both comfortable :)
 
 #### Project directions
 There are some big decisions which the project must make. For these I expect core contributors to have something meaningful to add if it’s their area of expertise.
 
 #### Diversity
-Lightning should reflect the broader community it serves. As such we should have scientists/researchers from 
-different fields contributing!   
+Lightning should reflect the broader community it serves. As such we should have scientists/researchers from
+different fields contributing!
 
 The first 5 core contributors will fit this profile. Thus if you overlap strongly with experiences and expertise as someone else on the team, you might have to wait until the next set of contributors are added.
 
 #### Summary: Requirements to apply
 The goal is to be inline with expectations for solving issues by the last one so you can do them on your own. If not, I might ask you to solve a few more specific ones.
 
-- Solve 10+ Github issues. 
+- Solve 10+ Github issues.
 - Create 5+ meaningful PRs which solves some reported issue - bug,
 - Perform 10+ PR reviews from other contributors.
 

.github/ISSUE_TEMPLATE/documentation.md

@@ -12,7 +12,7 @@ assignees: ''
 For typos and doc fixes, please go ahead and:
 
 1. Create an issue.
-2. Fix the typo.   
+2. Fix the typo.
 3. Submit a PR.
 
 Thanks!

.github/ISSUE_TEMPLATE/how-to-question.md

@@ -9,18 +9,18 @@ assignees: ''
 
 ## ❓ Questions and Help
 
-### Before asking: 
+### Before asking:
 1. Try to find answers to your questions in [the Lightning Forum!](https://forums.pytorchlightning.ai/)
-2. Search for similar [issues](https://github.com/PyTorchLightning/pytorch-lightning/issues).   
-3. Search the [docs](https://pytorch-lightning.readthedocs.io/en/latest/).    
+2. Search for similar [issues](https://github.com/PyTorchLightning/pytorch-lightning/issues).
+3. Search the [docs](https://pytorch-lightning.readthedocs.io/en/latest/).
 
 <!-- If you still can't find what you need: -->
 
 #### What is your question?
 
 #### Code
 
-<!-- Please paste a code snippet if your question requires it! -->   
+<!-- Please paste a code snippet if your question requires it! -->
 
 #### What have you tried?
 

.github/workflows/ci_dockers.yml

@@ -2,11 +2,21 @@ name: CI build Docker
 # https://www.docker.com/blog/first-docker-github-action-is-here
 # https://github.com/docker/build-push-action
 # see: https://help.github.com/en/actions/reference/events-that-trigger-workflows
-on:  # Trigger the workflow on push or pull request, but only for the master branch
+on: # Trigger the workflow on push or pull request, but only for the master branch
   push:
-    branches: [master, "release/*"]  # include release branches like release/1.0.x
+    branches: [master, "release/*"] # include release branches like release/1.0.x
   pull_request:
     branches: [master, "release/*"]
+    paths:
+      - "dockers/**"
+      - "!dockers/README.md"
+      - "requirements/*.txt"
+      - "environment.yml"
+      - "requirements.txt"
+      - ".github/workflows/ci_dockers.yml"
+      - ".github/workflows/events-nightly.yml"
+      - ".github/workflows/release-docker.yml"
+      - "setup.py"
 
 jobs:
   build-PL:
@@ -55,7 +65,6 @@ jobs:
           build-args: |
             PYTHON_VERSION=${{ matrix.python_version }}
             XLA_VERSION=${{ matrix.xla_version }}
-          cache-from: pytorchlightning/pytorch_lightning:base-xla-py${{ matrix.python_version }}-torch${{ matrix.xla_version }}
           file: dockers/base-xla/Dockerfile
           push: false
         timeout-minutes: 50
@@ -96,7 +105,6 @@ jobs:
             PYTHON_VERSION=${{ matrix.python_version }}
             PYTORCH_VERSION=${{ matrix.pytorch_version }}
             CUDA_VERSION=${{ steps.extend.outputs.CUDA }}
-          cache-from: pytorchlightning/pytorch_lightning:base-cuda-py${{ matrix.python_version }}-torch${{ matrix.pytorch_version }}
           file: dockers/base-cuda/Dockerfile
           push: false
         timeout-minutes: 50
@@ -139,7 +147,6 @@ jobs:
             PYTORCH_VERSION=${{ matrix.pytorch_version }}
             PYTORCH_CHANNEL=${{ steps.extend.outputs.CHANNEL }}
             CUDA_VERSION=${{ steps.extend.outputs.CUDA }}
-          cache-from: pytorchlightning/pytorch_lightning:base-conda-py${{ matrix.python_version }}-torch${{ matrix.pytorch_version }}
           file: dockers/base-conda/Dockerfile
           push: false
         timeout-minutes: 50

.github/workflows/ci_pkg-install.yml

@@ -3,7 +3,7 @@ name: Install pkg
 # see: https://help.github.com/en/actions/reference/events-that-trigger-workflows
 on:  # Trigger the workflow on push or pull request, but only for the master branch
   push:
-    branches: [master, "release/*"]  # include release branches like release/1.0.x
+    branches: [master, "release/*"]
   pull_request:
     branches: [master, "release/*"]
 
@@ -27,13 +27,13 @@ jobs:
 
       - name: Prepare env
         run: |
-          pip install check-manifest "twine>=3.2"
+          pip install check-manifest "twine==3.2" setuptools wheel
 
       - name: Create package
         run: |
           check-manifest
           # python setup.py check --metadata --strict
-          python setup.py sdist
+          python setup.py sdist bdist_wheel
 
       - name: Check package
         run: |
@@ -46,12 +46,18 @@ jobs:
           # this is just a hotfix because of Win cannot install it directly
           pip install -r requirements.txt --find-links https://download.pytorch.org/whl/cpu/torch_stable.html
 
-      - name: Install package
+      - name: Install | Uninstall package - archive
+        run: |
+          # install as archive
+          pip install dist/*.tar.gz
+          cd ..
+          python -c "import pytorch_lightning as pl ; print(pl.__version__)"
+          pip uninstall -y pytorch-lightning
+
+      - name: Install | Uninstall package - wheel
         run: |
-          # pip install virtualenv
-          # virtualenv vEnv --system-site-packages
-          # source vEnv/bin/activate
-          pip install dist/*
-          cd .. & python -c "import pytorch_lightning as pl ; print(pl.__version__)"
-          # deactivate
-          # rm -rf vEnv
+          # install as wheel
+          pip install dist/*.whl
+          cd ..
+          python -c "import pytorch_lightning as pl ; print(pl.__version__)"
+          pip uninstall -y pytorch-lightning

.github/workflows/ci_test-base.yml

@@ -3,7 +3,7 @@ name: CI basic testing
 # see: https://help.github.com/en/actions/reference/events-that-trigger-workflows
 on:  # Trigger the workflow on push or pull request, but only for the master branch
   push:
-    branches: [master, "release/*"]  # include release branches like release/1.0.x
+    branches: [master, "release/*"]
   pull_request:
     branches: [master, "release/*"]
 

.github/workflows/ci_test-conda.yml

@@ -3,7 +3,7 @@ name: PyTorch & Conda
 # see: https://help.github.com/en/actions/reference/events-that-trigger-workflows
 on:  # Trigger the workflow on push or pull request, but only for the master branch
   push:
-    branches: [master, "release/*"]  # include release branches like release/1.0.x
+    branches: [master, "release/*"]
   pull_request:
     branches: [master, "release/*"]
 
@@ -34,10 +34,21 @@ jobs:
       # todo this probably does not work with docker images, rather cache dockers
       uses: actions/cache@v2
       with:
-        path: Datasets # This path is specific to Ubuntu
-        # Look to see if there is a cache hit for the corresponding requirements file
+        path: Datasets
         key: pl-dataset
 
+    - name: Pull checkpoints from S3
+      # todo: consider adding coma caching, but ATM all models have less then 100KB
+      run: |
+        # todo: remove unzip install after new nigtly docker is created
+        apt-get update -qq
+        apt-get install -y --no-install-recommends unzip
+        # enter legacy and update checkpoints from S3
+        cd legacy
+        curl https://pl-public-data.s3.amazonaws.com/legacy/checkpoints.zip --output checkpoints.zip
+        unzip -o checkpoints.zip
+        ls -l checkpoints/
+
     - name: Tests
       run: |
         # NOTE: run coverage on tests does not propagare faler status for Win, https://github.com/nedbat/coveragepy/issues/1003

.github/workflows/ci_test-full.yml

@@ -3,7 +3,7 @@ name: CI complete testing
 # see: https://help.github.com/en/actions/reference/events-that-trigger-workflows
 on:  # Trigger the workflow on push or pull request, but only for the master branch
   push:
-    branches: [master, "release/*"]  # include release branches like release/1.0.x
+    branches: [master, "release/*"]
   pull_request:
     branches: [master, "release/*"]
 
@@ -87,6 +87,16 @@ jobs:
         restore-keys: |
           ${{ runner.os }}-pip-py${{ matrix.python-version }}-${{ matrix.requires }}-
 
+    - name: Pull checkpoints from S3
+      # todo: consider adding some caching, but ATM all models have less then 100KB
+      run: |
+        cd legacy
+        # wget is simpler but does not work on Windows
+        python -c "from urllib.request import urlretrieve ; urlretrieve('https://pl-public-data.s3.amazonaws.com/legacy/checkpoints.zip', 'checkpoints.zip')"
+        ls -l .
+        unzip -o checkpoints.zip
+        ls -l checkpoints/
+
     - name: Install dependencies
       env:
         # MAKEFLAGS: "-j2"
@@ -119,8 +129,7 @@ jobs:
     - name: Cache datasets
       uses: actions/cache@v2
       with:
-        path: Datasets # This path is specific to Ubuntu
-        # Look to see if there is a cache hit for the corresponding requirements file
+        path: Datasets
         key: pl-dataset
 
     - name: Tests

.github/workflows/ci_test-tpu.yml

@@ -2,7 +2,7 @@ name: TPU tests
 
 on:
   push:
-    branches: [master, "release/*"]  # include release branches like release/1.0.x
+    branches: [master, "release/*"]
 # TODO: temporal disable TPU testing until we find way how to pass credentials to forked PRs
 #  pull_request:
 #    branches:

.github/workflows/code-formatting.yml

@@ -2,7 +2,7 @@ name: "Check Code Format"
 
 on:  # Trigger the workflow on push or pull request, but only for the master branch
   push:
-    branches: [master, "release/*"]  # include release branches like release/1.0.x
+    branches: [master, "release/*"]
   pull_request:
     branches: [master, "release/*"]
 

.github/workflows/docs-checks.yml

@@ -3,7 +3,7 @@ name: "Docs check"
 
 on:  # Trigger the workflow on push or pull request, but only for the master branch
   push:
-    branches: [master, "release/*"]  # include release branches like release/1.0.x
+    branches: [master, "release/*"]
   pull_request:
     branches: [master, "release/*"]
 
@@ -109,4 +109,3 @@ jobs:
           path: docs/build/html/
         # Use always() to always run this step to publish test results when there are test failures
         if: success()
-