docs: build docs for specific tags (Lightning-AI#17055)

Co-authored-by: Adrian Wälchli <[email protected]>

.github/workflows/docs-build.yml

@@ -177,4 +177,4 @@ jobs:
       # Uploading docs to GCS, so they can be served on lightning.ai
       - name: Upload docs/${{ matrix.pkg-name }}/release to GCS 🪣
         if: startsWith(github.ref, 'refs/tags/')
-        run: gsutil -m rsync -d -R docs/build/html/ gs://lightning-docs-${{ matrix.pkg-name }}/${{  github.ref_name }}"
+        run: gsutil -m rsync -d -R docs/build/html/ gs://lightning-docs-${{ matrix.pkg-name }}/${{  github.ref_name }}

.gitignore

@@ -7,6 +7,8 @@ lightning_logs/
 .vscode/
 
 # Documentations
+docs/venv*/
+docs/build*/
 docs/source-app/generated
 docs/source-app/*/generated
 docs/source-pytorch/api

docs/generate_docs_for_tags.sh

@@ -0,0 +1,59 @@
+#!/bin/bash
+# Usage:
+# 1. Generate docs with one or more specified versions:
+#    $ export PACKAGE_NAME=app
+#    $ bash docs/generate_docs_for_tags.sh 1.9.3 1.9.2 1.9.1 1.9.0
+#    OR
+#    $ PACKAGE_NAME=pytorch bash docs/generate_docs_for_tags.sh 1.8.6 1.8.5 1.8.4 1.8.3 1.8.2 1.8.1 1.8.0
+set -e
+
+PATH_ROOT=~/Desktop/builds
+PATH_ENV=$PATH_ROOT/venv-docs-$PACKAGE_NAME
+# export PACKAGE_NAME=app
+export FREEZE_REQUIREMENTS=1
+
+echo PATH_ROOT: $PATH_ROOT
+echo PATH_ENV: $PATH_ENV
+echo PYTHONPATH: $PYTHONPATH
+
+function build_docs {
+  python --version
+  pip --version
+
+  pip install -q setuptools wheel python-multipart
+	pip install -e . -q -r requirements/$PACKAGE_NAME/docs.txt \
+	  -f ../pypi -f https://download.pytorch.org/whl/cpu/torch_stable.html
+  pip list
+
+	cd docs/source-$PACKAGE_NAME
+	make html --jobs=$(nproc)
+	# make html SPHINXOPTS="-W --keep-going" --jobs=$(nproc)
+	cd ../..
+
+  mkdir -p $PATH_ROOT/docs-${PACKAGE_NAME}
+  mv docs/build/html $PATH_ROOT/docs-${PACKAGE_NAME}/$tag
+}
+
+# iterate over all arguments assuming that each argument is version
+for tag in "$@"
+do
+  echo processing version: $tag
+
+  # Don't install/update anything before activating venv
+  # to avoid breaking any existing environment.
+  python -m venv $PATH_ENV
+  source $PATH_ENV/bin/activate
+
+  cd $PATH_ROOT
+  git clone --single-branch --branch $tag --depth 1 --recurse-submodules \
+    https://github.com/Lightning-AI/lightning.git
+  cd lightning
+
+  build_docs > "$PATH_ROOT/building-${PACKAGE_NAME}_${tag}.log"
+
+  cd ..
+  rm -rf lightning
+
+  deactivate
+  rm -rf $PATH_ENV
+done

docs/source-pytorch/past_versions.rst

@@ -15,34 +15,35 @@ TO help you with keeping up to spead, check :doc:`Migration guide <./upgrade/mig
      - Upgrade guide
 
    * - `1.9 <https://github.com/Lightning-AI/lightning/releases/tag/1.9.0>`_
-     - `Stability and additional improvements <https://pytorch-lightning.readthedocs.io/en/1.9.3>`_
-     - `1.9.0 <https://pytorch-lightning.readthedocs.io/en/1.9.0>`_,
-       `1.9.1 <https://pytorch-lightning.readthedocs.io/en/1.9.1>`_,
-       `1.9.2 <https://pytorch-lightning.readthedocs.io/en/1.9.2>`_,
-       `1.9.3 <https://pytorch-lightning.readthedocs.io/en/1.9.3>`_
+     - `Stability and additional improvements <https://lightning.ai/docs/pytorch/1.9.3>`_
+     - `1.9.0 <https://lightning.ai/docs/pytorch/1.9.0>`_,
+       `1.9.1 <https://lightning.ai/docs/pytorch/1.9.1>`_,
+       `1.9.2 <https://lightning.ai/docs/pytorch/1.9.2>`_,
+       `1.9.3 <https://lightning.ai/docs/pytorch/1.9.3>`_,
+       `1.9.4 <https://lightning.ai/docs/pytorch/1.9.4>`_
      - :doc:`from 1.9 to 2.0 <upgrade/from_1_9>`
 
    * - `1.8 <https://github.com/Lightning-AI/lightning/releases/tag/1.8.0>`_
-     - `Colossal-AI Strategy, Commands and Secrets for Apps, FSDP Improvements and More! <https://pytorch-lightning.readthedocs.io/en/1.8.6>`_
-     - `1.8.0 <https://pytorch-lightning.readthedocs.io/en/1.8.0>`_,
-       `1.8.1 <https://pytorch-lightning.readthedocs.io/en/1.8.1>`_,
-       `1.8.2 <https://pytorch-lightning.readthedocs.io/en/1.8.2>`_,
-       `1.8.3 <https://pytorch-lightning.readthedocs.io/en/1.8.3>`_,
-       `1.8.4 <https://pytorch-lightning.readthedocs.io/en/1.8.4>`_,
-       `1.8.5 <https://pytorch-lightning.readthedocs.io/en/1.8.5>`_,
-       `1.8.6 <https://pytorch-lightning.readthedocs.io/en/1.8.6>`_
+     - `Colossal-AI Strategy, Commands and Secrets for Apps, FSDP Improvements and More! <https://lightning.ai/docs/pytorch/1.8.6>`_
+     - `1.8.0 <https://lightning.ai/docs/pytorch/1.8.0>`_,
+       `1.8.1 <https://lightning.ai/docs/pytorch/1.8.1>`_,
+       `1.8.2 <https://lightning.ai/docs/pytorch/1.8.2>`_,
+       `1.8.3 <https://lightning.ai/docs/pytorch/1.8.3>`_,
+       `1.8.4 <https://lightning.ai/docs/pytorch/1.8.4>`_,
+       `1.8.5 <https://lightning.ai/docs/pytorch/1.8.5>`_,
+       `1.8.6 <https://lightning.ai/docs/pytorch/1.8.6>`_
      - :doc:`from 1.8 to 2.0 <upgrade/from_1_8>`
 
    * - `1.7 <https://github.com/Lightning-AI/lightning/releases/tag/1.7.0>`_
-     - `Apple Silicon support, Native FSDP, Collaborative training, and multi-GPU support with Jupyter notebooks <https://pytorch-lightning.readthedocs.io/en/1.7.7>`_
-     - `1.7.0 <https://pytorch-lightning.readthedocs.io/en/1.7.0>`_,
-       `1.7.1 <https://pytorch-lightning.readthedocs.io/en/1.7.1>`_,
-       `1.7.2 <https://pytorch-lightning.readthedocs.io/en/1.7.2>`_,
-       `1.7.3 <https://pytorch-lightning.readthedocs.io/en/1.7.3>`_,
-       `1.7.4 <https://pytorch-lightning.readthedocs.io/en/1.7.4>`_,
-       `1.7.5 <https://pytorch-lightning.readthedocs.io/en/1.7.5>`_,
-       `1.7.6 <https://pytorch-lightning.readthedocs.io/en/1.7.6>`_,
-       `1.7.7 <https://pytorch-lightning.readthedocs.io/en/1.7.7>`_
+     - `Apple Silicon support, Native FSDP, Collaborative training, and multi-GPU support with Jupyter notebooks <https://lightning.ai/docs/pytorch/1.7.7>`_
+     - `1.7.0 <https://lightning.ai/docs/pytorch/1.7.0>`_,
+       `1.7.1 <https://lightning.ai/docs/pytorch/1.7.1>`_,
+       `1.7.2 <https://lightning.ai/docs/pytorch/1.7.2>`_,
+       `1.7.3 <https://lightning.ai/docs/pytorch/1.7.3>`_,
+       `1.7.4 <https://lightning.ai/docs/pytorch/1.7.4>`_,
+       `1.7.5 <https://lightning.ai/docs/pytorch/1.7.5>`_,
+       `1.7.6 <https://lightning.ai/docs/pytorch/1.7.6>`_,
+       `1.7.7 <https://lightning.ai/docs/pytorch/1.7.7>`_
      - :doc:`from 1.7 to 2.0 <upgrade/from_1_7>`
 
    * - `1.6 <https://github.com/Lightning-AI/lightning/releases/tag/1.6.0>`_