| #!/bin/bash |
| # |
| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you under the Apache License, Version 2.0 (the |
| # "License"); you may not use this file except in compliance |
| # with the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, |
| # software distributed under the License is distributed on an |
| # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| # KIND, either express or implied. See the License for the |
| # specific language governing permissions and limitations |
| # under the License. |
| |
| # Script which downloads and builds the thirdparty dependencies |
| # only if necessary. |
| # |
| # In a git repo, this uses git checksum information on the thirdparty |
| # tree. Otherwise, it uses a 'stamp file' approach. |
| |
| set -e |
| set -o pipefail |
| |
| TP_DIR=$(dirname $BASH_SOURCE) |
| cd $TP_DIR |
| |
| NEEDS_BUILD= |
| |
| IS_IN_GIT=$(test -d ../.git && echo true || :) |
| |
| if [ -n "$IS_IN_GIT" ]; then |
| # Determine whether this subtree in the git repo has changed since thirdparty |
| # was last built |
| |
| CUR_THIRDPARTY_HASH=$(cd .. && git ls-tree -d HEAD thirdparty | awk '{print $3}') |
| LAST_BUILD_HASH=$(cat .build-hash || :) |
| if [ "$CUR_THIRDPARTY_HASH" != "$LAST_BUILD_HASH" ]; then |
| echo "Rebuilding thirdparty: the repository has changed since thirdparty was last built." |
| echo "Old git hash: $LAST_BUILD_HASH" |
| echo "New build hash: $CUR_THIRDPARTY_HASH" |
| NEEDS_BUILD=1 |
| else |
| # Determine whether the developer has any local changes |
| if ! ( git diff --quiet . && git diff --cached --quiet . ) ; then |
| echo "Rebuilding thirdparty: There are local changes in the repository." |
| NEEDS_BUILD=1 |
| else |
| echo Not rebuilding thirdparty. No changes since last build. |
| fi |
| fi |
| else |
| # If we aren't inside running inside a git repository (e.g. we are |
| # part of a source distribution tarball) then we can't use git to find |
| # out whether the build is clean. Instead, use a .build-stamp file, and |
| # see if any files inside this directory have been modified since then. |
| if [ -f .build-stamp ]; then |
| CHANGED_FILE_COUNT=$(find . -cnewer .build-stamp | wc -l) |
| echo "$CHANGED_FILE_COUNT file(s) been modified since thirdparty was last built." |
| if [ $CHANGED_FILE_COUNT -gt 0 ]; then |
| echo "Rebuilding." |
| echo NEEDS_BUILD=1 |
| fi |
| else |
| echo "It appears that thirdparty was never built. Building." |
| NEEDS_BUILD=1 |
| fi |
| fi |
| |
| if [ -z "$NEEDS_BUILD" ]; then |
| exit 0 |
| fi |
| |
| rm -f .build-hash .build-stamp |
| ./download-thirdparty.sh |
| ./build-thirdparty.sh |
| |
| if [ -n "$IS_IN_GIT" ]; then |
| echo $CUR_THIRDPARTY_HASH > .build-hash |
| else |
| touch .build-stamp |
| fi |