Add venv cache to make pipelines faster

bitbucket-pipelines.yml

@@ -9,11 +9,10 @@ pipelines:
             services:
               - postgres
             caches:
-              - pip
-              - cypress
+              - vbvpip
             script:
               - source ./env/bitbucket/prepare_for_test.sh
-              - pip3 install -r server/requirements/requirements-dev.txt
+              - pip install -r server/requirements/requirements-dev.txt
               - git-crypt status -e | sort > git-crypt-encrypted-files-check.txt && diff git-crypt-encrypted-files.txt git-crypt-encrypted-files-check.txt
               - trufflehog --exclude_paths trufflehog-exclude-patterns.txt --allow trufflehog-allow.json --entropy=True --max_depth=100 .
               - ./server/run_tests_coverage.sh
@@ -28,11 +27,13 @@ pipelines:
               - cypress/**/*.mp4
             caches:
               - node
-              - pip
+              - vbvpip
               - cypress
             script:
               - source ./env/bitbucket/prepare_for_test.sh
-              - pip3 install -r server/requirements/requirements-dev.txt
+              - python -m venv vbvvenv
+              - source vbvvenv/bin/activate
+              - pip install -r server/requirements/requirements-dev.txt
               - npm install
               - ./prepare_server_cypress.sh --start-background
               - npm run cypress:ci
@@ -69,6 +70,7 @@ pipelines:
 definitions:
   caches:
     cypress: /root/.cache/Cypress
+    vbvpip: /opt/atlassian/pipelines/agent/build/vbvvenv/
   services:
     postgres:
       image: postgres

env/bitbucket/prepare_for_test.sh

@@ -8,3 +8,7 @@ export PG_USER="postgres"
 export PG_PORT=5432
 
 export OPENSSL_CONF=/etc/ssl/
+
+python -m venv vbvvenv
+source vbvvenv/bin/activate
+export PATH="$PWD/vbvvenv/bin:$PATH"