mirror of
https://github.com/kennethreitz/heroku-buildpack-python.git
synced 2026-06-05 23:10:16 +00:00
Casey Faist
109 lines
4.1 KiB
Bash
Executable File
109 lines
4.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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set +e
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runtime-fixer runtime.txt
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PYTHON_VERSION=$(cat runtime.txt)
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# The location of the pre-compiled python binary.
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VENDORED_PYTHON="${VENDOR_URL}/runtimes/$PYTHON_VERSION.tar.gz"
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if [[ $PYTHON_VERSION =~ ^python-2 ]]; then
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if [[ "$PYTHON_VERSION" != "$LATEST_2" ]]; then
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puts-warn "The latest version of Python 2 is $LATEST_2 (you are using $PYTHON_VERSION, which is unsupported)."
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puts-warn "We recommend upgrading by specifying the latest version ($LATEST_2)."
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echo " Learn More: https://devcenter.heroku.com/articles/python-runtimes"
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else
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echo " Using supported version of Python 2 ($PYTHON_VERSION)"
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fi
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else
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if [[ $PYTHON_VERSION =~ ^python-3 ]]; then
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if [[ $PYTHON_VERSION =~ ^python-3.7 ]]; then
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if [[ "$PYTHON_VERSION" != "$LATEST_37" ]]; then
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puts-warn "The latest version of Python 3.7 is $LATEST_37 (you are using $PYTHON_VERSION, which is unsupported)."
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puts-warn "We recommend upgrading by specifying the latest version ($LATEST_37)."
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echo " Learn More: https://devcenter.heroku.com/articles/python-runtimes"
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else
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echo " Using supported version of Python 3.7 ($PYTHON_VERSION)"
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fi
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else
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if [[ $PYTHON_VERSION =~ ^python-3.6 ]]; then
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if [[ "$PYTHON_VERSION" != "$LATEST_36" ]]; then
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puts-warn "The latest version of Python 3.6 is $LATEST_36 (you are using $PYTHON_VERSION, which is unsupported)."
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puts-warn "We recommend upgrading by specifying the latest version ($LATEST_36)."
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echo " Learn More: https://devcenter.heroku.com/articles/python-runtimes"
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else
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echo " Using supported version of Python 3.6 ($PYTHON_VERSION)"
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fi
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else
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puts-warn "Heroku supports runtime versions $LATEST_37, $LATEST_36 and $LATEST_2."
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puts-warn "You are using $PYTHON_VERSION, which is unsupported."
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puts-warn "We recommend upgrading by specifying the default supported version ($LATEST_36)."
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echo " Learn More: https://devcenter.heroku.com/articles/python-runtimes"
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fi
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fi
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fi
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fi
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if [[ "$STACK" != "$CACHED_PYTHON_STACK" ]]; then
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puts-step "Stack has changed from $CACHED_PYTHON_STACK to $STACK, clearing cache"
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rm -fr .heroku/python-stack .heroku/python-version .heroku/python .heroku/vendor .heroku/python .heroku/python-sqlite3-version
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fi
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# need to clear the cache for first time installing SQLite3,
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# since the version is changing and could lead to runtime errors
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# with compiled extensions.
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if [ -d .heroku/python ] && [ ! -f .heroku/python-sqlite3-version ] && python_sqlite3_check "$PYTHON_VERSION"; then
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puts-step "Need to update SQLite3, clearing cache"
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rm -fr .heroku/python-stack .heroku/python-version .heroku/python .heroku/vendor
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fi
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if [ -f .heroku/python-version ]; then
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if [ ! "$(cat .heroku/python-version)" = "$PYTHON_VERSION" ]; then
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puts-step "Found $(cat .heroku/python-version), removing"
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rm -fr .heroku/python
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else
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SKIP_INSTALL=1
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fi
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fi
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if [ ! "$SKIP_INSTALL" ]; then
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puts-step "Installing $PYTHON_VERSION"
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# Prepare destination directory.
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mkdir -p .heroku/python
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mcount "version.python.$PYTHON_VERSION"
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if ! curl "${VENDORED_PYTHON}" -s | tar zxv -C .heroku/python &> /dev/null; then
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puts-warn "Requested runtime ($PYTHON_VERSION) is not available for this stack ($STACK)."
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puts-warn "Aborting. More info: https://devcenter.heroku.com/articles/python-support"
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exit 1
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fi
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# Record for future reference.
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echo "$PYTHON_VERSION" > .heroku/python-version
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echo "$STACK" > .heroku/python-stack
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FRESH_PYTHON=true
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hash -r
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fi
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# If Pip isn't up to date:
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if [ "$FRESH_PYTHON" ] || [[ ! $(pip --version) == *$PIP_UPDATE* ]]; then
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puts-step "Installing pip"
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# Remove old installations.
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rm -fr /app/.heroku/python/lib/python*/site-packages/pip-*
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rm -fr /app/.heroku/python/lib/python*/site-packages/setuptools-*
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/app/.heroku/python/bin/python "$ROOT_DIR/vendor/get-pip.py" pip=="$PIP_UPDATE" &> /dev/null
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/app/.heroku/python/bin/pip install "$ROOT_DIR/vendor/setuptools-39.0.1-py2.py3-none-any.whl" &> /dev/null
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fi
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set -e
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hash -r
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