ci: Use released version to build v*-doc branches

QuLogic · QuLogic · commit dce55e2857a6 · 2021-12-08T16:38:58.000-05:00
diff --git a/.circleci/config.yml b/.circleci/config.yml
@@ -104,7 +104,15 @@ commands:
     steps:
       - run:
           name: Install Matplotlib
-          command: python -m pip install --user -ve .
+          command: |
+            if [[ "$CIRCLE_BRANCH" == v*-doc ]]; then
+              # The v*-doc branches must build against the specified release.
+              version=${CIRCLE_BRANCH%-doc}
+              version=${version#v}
+              python -m pip install matplotlib==${version}
+            else
+              python -m pip install --user -ve .
+            fi
       - save_cache:
           key: build-deps-1
           paths:
