mirror of
https://github.com/kennethreitz/heroku-buildpack-python.git
synced 2026-06-05 23:10:16 +00:00
Terence Lee
221722fb27
With inspiration from @KevinBrolly, this patch uses the stack image SQLite3 package but also still providing the dev headers and binary that users may still be using today. The benefit is that we won't need to rebuild all the python binaries for this to take affect. We can just stop shipping SQLite3 from future binaries. In addition, we don't need to worry about what version and when to update SQLite3 and maintaining the packages ourselves. This also includes updates to Python 2.7.15 and Python 3.6.6 so they can rebuilt with the stack image dev headers instead of building our own vendored SQLite3.
90 lines
3.3 KiB
Bash
Executable File
90 lines
3.3 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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fi
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else
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if [[ $PYTHON_VERSION =~ ^python-3.7 ]] && [[ "$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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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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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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