ci: adding missing requirements for generating legacy ckpt (#19353)

.github/workflows/_legacy-checkpoints.yml

@@ -42,7 +42,7 @@ on:
         type: boolean
 
 env:
-  legacy_dir: "tests/legacy"
+  LEGACY_FOLDER: "tests/legacy"
   TORCH_URL: "https://download.pytorch.org/whl/cpu/torch_stable.html"
 
 defaults:
@@ -91,11 +91,11 @@ jobs:
         run: python -c "import pytorch_lightning as pl; print(f'pl-version={pl.__version__}')" >> $GITHUB_OUTPUT || echo pl-version='' >> $GITHUB_OUTPUT
 
       - name: Generate checkpoints
-        working-directory: ${{ env.legacy_dir }}
+        working-directory: ${{ env.LEGACY_FOLDER }}
         run: bash generate_checkpoints.sh ${{ inputs.pl_version }}
       - name: Rename local to actual version
         if: inputs.upload_local
-        working-directory: ${{ env.legacy_dir }}
+        working-directory: ${{ env.LEGACY_FOLDER }}
         run: mv checkpoints/local checkpoints/${{ steps.decide-version.outputs.pl-version }}
 
       - name: "Determine: Keep artifact & DryRun"
@@ -107,12 +107,12 @@ jobs:
         uses: actions/upload-artifact@v3
         with:
           name: checkpoints-${{ github.sha }}
-          path: ${{ env.legacy_dir }}/checkpoints/
+          path: ${{ env.LEGACY_FOLDER }}/checkpoints/
           retention-days: ${{ env.KEEP_DAYS }}
 
       - run: pip install -r requirements/ci.txt
       - name: Upload checkpoints to S3
-        working-directory: ${{ env.legacy_dir }}
+        working-directory: ${{ env.LEGACY_FOLDER }}
         env:
           AWS_ACCESS_KEY_ID: ${{ secrets.AWS_PUB_ACCESS_KEY }}
           AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_PUB_SECRET_KEY }}
@@ -134,7 +134,7 @@ jobs:
           ref: master
 
       - name: Append a new version to legacy checkpoint list
-        working-directory: ${{ env.legacy_dir }}
+        working-directory: ${{ env.LEGACY_FOLDER }}
         run: echo ${PL_VERSION} >> back-compatible-versions.txt
 
       - name: Create Pull Request

.github/workflows/ci-checkpoints.yml

@@ -1,4 +1,4 @@
-name: Validate legacy ckpts
+name: Generate legacy ckpts
 
 on:
   push:
@@ -8,8 +8,10 @@ on:
     types: [opened, reopened, ready_for_review, synchronize] # added `ready_for_review` since draft is skipped
     paths:
       - ".github/workflows/ci-checkpoints.yml"
-      - ".github/workflows/_legacy-checkpoints.yml.yml"
+      - ".github/workflows/_legacy-checkpoints.yml"
       - "requirements/ci.txt"
+      - "requirements/pytorch/*.txt"
+      - "tests/legacy/*"
 
 jobs:
   try-legacy-checkpoints:

tests/legacy/generate_checkpoints.sh

@@ -6,11 +6,12 @@
 #    bash generate_checkpoints.sh
 set -e
 
-LEGACY_PATH=$(cd $(dirname $0); pwd -P)
-ENV_PATH=$LEGACY_PATH/vEnv
-export PYTHONPATH=$(dirname $LEGACY_PATH)  # for `import tests_pytorch`
-printf "LEGACY_PATH: $LEGACY_PATH"
+LEGACY_FOLDER=$(cd $(dirname $0); pwd -P)
+printf "LEGACY_FOLDER: $LEGACY_FOLDER"
+TESTS_FOLDER=$(dirname $LEGACY_FOLDER)
+ENV_PATH=$LEGACY_FOLDER/vEnv
 printf "ENV_PATH: $ENV_PATH"
+export PYTHONPATH=$TESTS_FOLDER  # for `import tests_pytorch`
 printf "PYTHONPATH: $PYTHONPATH"
 rm -rf $ENV_PATH
 
@@ -19,11 +20,11 @@ function create_and_save_checkpoint {
   python -m pip --version
   python -m pip list
 
-  python $LEGACY_PATH/simple_classif_training.py $pl_ver
+  python $LEGACY_FOLDER/simple_classif_training.py $pl_ver
 
-  cp $LEGACY_PATH/simple_classif_training.py $LEGACY_PATH/checkpoints/$pl_ver
-  mv $LEGACY_PATH/checkpoints/$pl_ver/lightning_logs/version_0/checkpoints/*.ckpt $LEGACY_PATH/checkpoints/$pl_ver/
-  rm -rf $LEGACY_PATH/checkpoints/$pl_ver/lightning_logs
+  cp $LEGACY_FOLDER/simple_classif_training.py $LEGACY_FOLDER/checkpoints/$pl_ver
+  mv $LEGACY_FOLDER/checkpoints/$pl_ver/lightning_logs/version_0/checkpoints/*.ckpt $LEGACY_FOLDER/checkpoints/$pl_ver/
+  rm -rf $LEGACY_FOLDER/checkpoints/$pl_ver/lightning_logs
 }
 
 # iterate over all arguments assuming that each argument is version
@@ -35,9 +36,12 @@ do
   python -m venv $ENV_PATH
   source $ENV_PATH/bin/activate
 
-  python -m pip install "pytorch_lightning==$pl_ver" -r $LEGACY_PATH/requirements.txt -f https://download.pytorch.org/whl/cpu/torch_stable.html
+  python -m pip install "pytorch_lightning==$pl_ver" \
+    -r $LEGACY_FOLDER/requirements.txt \
+    -r "$(dirname $TESTS_FOLDER)/requirements/pytorch/test.txt" \
+    -f https://download.pytorch.org/whl/cpu/torch_stable.html
 
-  rm -rf $LEGACY_PATH/checkpoints/$pl_ver
+  rm -rf $LEGACY_FOLDER/checkpoints/$pl_ver
   create_and_save_checkpoint
 
   deactivate
@@ -48,7 +52,10 @@ done
 if [[ -z "$@" ]]; then
   printf "\n\n processing local version\n"
 
-  python -m pip install -r $LEGACY_PATH/requirements.txt
+  python -m pip install \
+    -r $LEGACY_FOLDER/requirements.txt \
+    -r "$(dirname $TESTS_FOLDER)/requirements/pytorch/test.txt" \
+    -f https://download.pytorch.org/whl/cpu/torch_stable.html
   pl_ver="local"
   create_and_save_checkpoint
 fi

tests/legacy/requirements.txt

@@ -1,2 +0,0 @@
-torchmetrics  # necessary because old PL versions don't have it as dependency
-scikit-learn