fde4572764
We can now support file:// URIs in source-repositories files and other places, by ignoring curl's inability to determine an HTTP status code for them. Change-Id: Ie226ce05ecb912b23cedc73fd7ba53c0b9c0fe35
63 lines
2.0 KiB
Bash
Executable File
63 lines
2.0 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
# Copyright 2012 Hewlett-Packard Development Company, L.P.
|
|
# All Rights Reserved.
|
|
# Copyright 2013 Red Hat, Inc.
|
|
#
|
|
# 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 -e
|
|
|
|
# Download a URL to a local cache
|
|
# e.g. cache-url http://.../foo ~/.cache/image-create/foo
|
|
|
|
url=$1
|
|
dest=$2
|
|
|
|
mkdir -p $(dirname $dest)
|
|
tmp=$(mktemp $(dirname $dest)/.download.XXXXXXXX)
|
|
|
|
if [ -f $dest -a -s $dest ] ; then
|
|
time_cond="-z $dest"
|
|
success="Server copy has changed. Using server version of $url"
|
|
else
|
|
success="Downloaded and cached $url for the first time"
|
|
fi
|
|
|
|
rcode=$(curl -L -o $tmp -w '%{http_code}' $url $time_cond)
|
|
if [ "$rcode" == "200" -o "${url:0:7}" == "file://" ] ; then
|
|
# In cases where servers ignore the Modified time,
|
|
# curl cancels the download, outputs a 200 and leaves
|
|
# the output file untouched, we don't want this empty file.
|
|
if [ -n "$time_cond" -a ! -s $tmp ] ; then
|
|
echo "Ignoring empty file returned by curl. Using locally cached $url"
|
|
rm -f $tmp
|
|
else
|
|
echo $success
|
|
mv $tmp $dest
|
|
fi
|
|
# 213 is the response to a ftp MDTM command, curl outputs a 213 as the status
|
|
# if the url redirected to a ftp server and Not-Modified
|
|
elif [ "$rcode" = "304" -o "$rcode" = "213" ] ; then
|
|
echo "Server copy has not changed. Using locally cached $url"
|
|
rm -f $tmp
|
|
else
|
|
echo "Server returned an unexpected response code. [$rcode]"
|
|
rm -f $tmp
|
|
# expose some error codes so the calling process might know what happened
|
|
if [ "$rcode" = "404" ] ; then
|
|
exit 44
|
|
fi
|
|
exit 1
|
|
fi
|