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Improve UX when clearing cache due to the stack changing (#442)

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* Test that the cache is invalidated when the stack changes

* Improve UX when clearing cache due to the stack changing

Now outputs a message informing that the cache was cleared, and
clears the cache first to avoid a redundant message about removing
an old Python version.
This commit is contained in:
Ed Morley
2017-08-08 03:23:23 +02:00
committed by Kenneth Reitz
parent f74d4db8c5
commit c029e44dc8
2 changed files with 14 additions and 7 deletions
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bin/steps/python
+5 -7
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@@ -4,7 +4,11 @@ set +e
runtime-fixer runtime.txt
PYTHON_VERSION=$(cat runtime.txt)
# Install Python.
if [[ "$STACK" != "$CACHED_PYTHON_STACK" ]]; then
puts-step "Stack has changed from $CACHED_PYTHON_STACK to $STACK, clearing cache"
rm -fr .heroku/python-stack .heroku/python-version .heroku/python .heroku/vendor
fi
if [ -f .heroku/python-version ]; then
if [ ! "$(cat .heroku/python-version)" = "$PYTHON_VERSION" ]; then
puts-step "Found $(cat .heroku/python-version), removing"
@@ -14,12 +18,6 @@ if [ -f .heroku/python-version ]; then
fi
fi
if [ ! "$STACK" = "$CACHED_PYTHON_STACK" ]; then
rm -fr .heroku/python .heroku/python-stack .heroku/vendor
unset SKIP_INSTALL
fi
if [ ! "$SKIP_INSTALL" ]; then
puts-step "Installing $PYTHON_VERSION"