CI: Dereference EXTRA_PIP_FLAGS

Author: effigies

.github/workflows/test.yml

@@ -33,7 +33,7 @@ jobs:
             python-version: 3.8
             architecture: x64
             install: archive
-            pip-flags: $PRE_PIP_FLAGS
+            pip-flags: PRE_PIP_FLAGS
         exclude:
           - os: ubuntu-latest
             architecture: x86
@@ -46,8 +46,7 @@ jobs:
       INSTALL_TYPE: ${{ matrix.install }}
       CHECK_TYPE: 'test'
       EXTRA_PIP_FLAGS: ${{ matrix.pip-flags }}
-      NIGHTLY_WHEELS: 'https://pypi.anaconda.org/scipy-wheels-nightly/simple'
-      PRE_PIP_FLAGS: '--pre --extra-index-url $NIGHTLY_WHEELS'
+      PRE_PIP_FLAGS: '--pre --extra-index-url https://pypi.anaconda.org/scipy-wheels-nightly/simple'
 
     steps:
       - uses: actions/checkout@v2

tools/ci/install.sh

@@ -13,6 +13,10 @@ echo EXTRA_PIP_FLAGS = $EXTRA_PIP_FLAGS
 
 set -x
 
+if [ -n "$EXTRA_PIP_FLAGS" ]; then
+    EXTRA_PIP_FLAGS=${!EXTRA_PIP_FLAGS}
+fi
+
 if [ "$INSTALL_TYPE" == "setup" ]; then
     python setup.py install
 else

tools/ci/install_dependencies.sh

@@ -12,9 +12,13 @@ echo DEPENDS = $DEPENDS
 
 set -x
 
+if [ -n "$EXTRA_PIP_FLAGS" ]; then
+    EXTRA_PIP_FLAGS=${!EXTRA_PIP_FLAGS}
+fi
+
 if [ -n "$DEPENDS" ]; then
-    pip install $EXTRA_PIP_FLAGS $DEPENDS
-    pip install $EXTRA_PIP_FLAGS $OPTIONAL_DEPENDS || true
+    pip install ${EXTRA_PIP_FLAGS} $DEPENDS
+    pip install ${EXTRA_PIP_FLAGS} $OPTIONAL_DEPENDS || true
 fi
 
 set +eux