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#!/bin/bash
# Copyright 2016 The Bazel Authors. All rights reserved.
#
# Licensed 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.
set -eu
if [ "${1-}" == "help" ]; then
cat <<EOF
Usage:
$0 [port]
Builds docs and starts a web server serving docs on localhost:port
Default port is 12345.
$0 <target directory> [<serving prefix>]
Builds docs as static web pages in <target directory>.
Replaces absolute paths in the resulting HTML with <serving prefix>,
or, if it is not specified, with <target directory>.
EOF
exit 0
fi
if [[ "${1-}" == [0-9]* ]]; then
readonly PORT=$1
readonly TARGET=''
else
readonly PORT=${1-12345}
readonly TARGET=${1-}
fi
readonly WORKING_DIR=$(mktemp -d)
readonly SERVING_PREFIX=${2-$TARGET}
function check {
which $1 > /dev/null || (echo "$1 not installed. Please install $1."; exit 1)
}
function build_and_serve {
bazel build //site:jekyll-tree.tar
rm -rf $WORKING_DIR/*
tar -xf bazel-genfiles/site/jekyll-tree.tar -C $WORKING_DIR
pkill -9 jekyll || true
if [ -z "$TARGET" ]; then
echo "Serving bazel.io site at port $PORT"
jekyll serve --detach --quiet --port $PORT --source $WORKING_DIR
else
TMP_TARGET=$(mktemp -d)
jekyll build --source $WORKING_DIR --destination "$TMP_TARGET"
REPLACEMENT=$(echo $SERVING_PREFIX | sed s/\\//\\\\\\//g)
find $TMP_TARGET -name '*.html' | xargs sed -i s/href=\\\"\\//href=\"$REPLACEMENT\\//g
find $TMP_TARGET -name '*.html' | xargs sed -i s/src=\\\"\\//src=\"$REPLACEMENT\\//g
cp -R $TMP_TARGET/* $TARGET
echo "Static pages copied to $TARGET"
echo "Should be served from $SERVING_PREFIX"
fi
}
function main {
check jekyll
old_version="Jekyll 0.11.2"
if expr match "$(jekyll --version)" "$old_version"; then
# The ancient version that apt-get has.
echo "ERROR: Running with an old version of Jekyll, update " \
"to 2.5.3 with \`sudo gem install jekyll -v 2.5.3\`"
exit 1
fi
build_and_serve
echo "Type q to quit, r to rebuild docs and restart jekyll"
while true; do
read -n 1 -s user_input
if [ "$user_input" == "q" ]; then
echo "Quitting"
exit 0
elif [ "$user_input" == "r" ]; then
echo "Rebuilding docs and restarting jekyll"
build_and_serve
echo "Rebuilt docs and restarted jekyll"
fi
done
}
function cleanup {
rm -rf $WORKING_DIR
pkill -9 jekyll
}
trap cleanup EXIT
main
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