Cache pip downloads in CI

Signed-off-by: Philippe Ombredanne <pombredanne@nexb.com>

Author: pombredanne

etc/ci/azure-posix.yml

@@ -5,6 +5,7 @@ parameters:
     test_suites: {}
     python_architecture: x64
 
+
 jobs:
     - job: ${{ parameters.job_name }}
 
@@ -29,6 +30,12 @@ jobs:
                     architecture: '${{ parameters.python_architecture }}'
                 displayName: '${{ pyver }} - Install Python'
 
+              - task: Cache@2
+                inputs:
+                    key: 'pipcache | "$(Agent.OS)" | ${{ pyver }}'
+                    path: $(PIP_CACHE_DIR)
+                    displayName: Cache pip downloaded packages
+
               - script: |
                     python${{ pyver }} --version
                     echo "python${{ pyver }}" > PYTHON_EXECUTABLE

etc/ci/azure-win.yml

@@ -5,6 +5,7 @@ parameters:
     test_suites: {}
     python_architecture: x64
 
+
 jobs:
     - job: ${{ parameters.job_name }}
 
@@ -29,6 +30,12 @@ jobs:
                     architecture: '${{ parameters.python_architecture }}'
                 displayName: '${{ pyver }} - Install Python'
 
+              - task: Cache@2
+                inputs:
+                    key: 'pipcache | "$(Agent.OS)" | ${{ pyver }}'
+                    path: $(PIP_CACHE_DIR)
+                    displayName: Cache pip downloaded packages
+
               - script: |
                    python --version
                    echo | set /p=python> PYTHON_EXECUTABLE