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feat: allow stack url overrides using BUILDPACK_VENDOR_URL env var (#643)

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This is useful if you'd like to customize python binaries without forking the entire buildpack.

Similar functionality was implemented in https://github.com/heroku/heroku-buildpack-ruby/pull/238
This commit is contained in:
Jose Diaz-Gonzalez
2018-03-02 07:15:23 -05:00
committed by Kenneth Reitz
parent 9468ec2630
commit e15f68944a
6 changed files with 16 additions and 7 deletions
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bin/compile
+6
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@@ -33,6 +33,12 @@ ENV_DIR=$3
export BUILD_DIR CACHE_DIR ENV_DIR
VENDOR_URL="https://lang-python.s3.amazonaws.com/$STACK"
if [[ -n ${BUILDPACK_VENDOR_URL:-} ]]; then
VENDOR_URL="$BUILDPACK_VENDOR_URL"
fi
export VENDOR_URL
# Python defaults
DEFAULT_PYTHON_VERSION="python-3.6.4"
LATEST_3="python-3.6.4"
bin/steps/cryptography
+1 -1
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@@ -15,7 +15,7 @@ if [[ "$STACK" == "heroku-16" ]]; then
fi
# The location of the pre-compiled libffi binary.
VENDORED_LIBFFI="https://lang-python.s3.amazonaws.com/$STACK/libraries/vendor/libffi.tar.gz"
VENDORED_LIBFFI="${VENDOR_URL}/libraries/vendor/libffi.tar.gz"
PKG_CONFIG_PATH="/app/.heroku/vendor/lib/pkgconfig:$PKG_CONFIG_PATH"
bin/steps/gdal
+1 -1
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@@ -10,7 +10,7 @@
# This script is invoked by [`bin/compile`](/).
# The location of the pre-compiled cryptography binary.
VENDORED_GDAL="https://lang-python.s3.amazonaws.com/$STACK/libraries/vendor/gdal.tar.gz"
VENDORED_GDAL="${VENDOR_URL}/libraries/vendor/gdal.tar.gz"
PKG_CONFIG_PATH="/app/.heroku/vendor/lib/pkgconfig:$PKG_CONFIG_PATH"
bin/steps/geo-libs
+3 -3
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@@ -10,9 +10,9 @@
# This script is invoked by [`bin/compile`](/).
# The location of the pre-compiled cryptography binary.
VENDORED_GDAL="https://lang-python.s3.amazonaws.com/$STACK/libraries/vendor/gdal.tar.gz"
VENDORED_GEOS="https://lang-python.s3.amazonaws.com/$STACK/libraries/vendor/geos.tar.gz"
VENDORED_PROJ="https://lang-python.s3.amazonaws.com/$STACK/libraries/vendor/proj.tar.gz"
VENDORED_GDAL="${VENDOR_URL}/libraries/vendor/gdal.tar.gz"
VENDORED_GEOS="${VENDOR_URL}/libraries/vendor/geos.tar.gz"
VENDORED_PROJ="${VENDOR_URL}/libraries/vendor/proj.tar.gz"
PKG_CONFIG_PATH="/app/.heroku/vendor/lib/pkgconfig:$PKG_CONFIG_PATH"
bin/steps/pylibmc
+1 -1
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@@ -15,7 +15,7 @@ if [[ "$STACK" == "heroku-16" ]]; then
fi
# The location of the pre-compiled libmemcached binary.
VENDORED_MEMCACHED="https://lang-python.s3.amazonaws.com/$STACK/libraries/vendor/libmemcache.tar.gz"
VENDORED_MEMCACHED="${VENDOR_URL}/libraries/vendor/libmemcache.tar.gz"
# Syntax sugar.
# shellcheck source=bin/utils
bin/steps/python
+4 -1
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@@ -4,6 +4,9 @@ set +e
runtime-fixer runtime.txt
PYTHON_VERSION=$(cat runtime.txt)
# The location of the pre-compiled python binary.
VENDORED_PYTHON="${VENDOR_URL}/runtimes/$PYTHON_VERSION.tar.gz"
if [[ $PYTHON_VERSION =~ ^python-2 ]]; then
if [[ "$PYTHON_VERSION" != "$LATEST_2" ]]; then
puts-warn "The latest version of Python 2 is $LATEST_2 (you are using $PYTHON_VERSION, which is unsupported)."
@@ -41,7 +44,7 @@ if [ ! "$SKIP_INSTALL" ]; then
mcount "version.python.$PYTHON_VERSION"
if ! curl "https://lang-python.s3.amazonaws.com/$STACK/runtimes/$PYTHON_VERSION.tar.gz" -s | tar zxv -C .heroku/python &> /dev/null; then
if ! curl "${VENDORED_PYTHON}" -s | tar zxv -C .heroku/python &> /dev/null; then
puts-warn "Requested runtime ($PYTHON_VERSION) is not available for this stack ($STACK)."
puts-warn "Aborting. More info: https://devcenter.heroku.com/articles/python-support"
exit 1