Use the hashicorp/go-getter to download files
* removed packer.Cache and references since packer.Cache is never used except in the download step. The download step now uses the new func packer.CachePath(targetPath) for this, the behavior is the same.
* removed download code from packer that was reimplemented into the go-getter library: progress bar, http download restart, checksuming from file, skip already downloaded files, symlinking, make a download cancellable by context.
* on windows if packer is running without symlinking rights and we are getting a local file, the file will be copied instead to avoid errors.
* added unit tests for step_download that are now CI tested on windows, mac & linux.
* files are now downloaded under cache dir `sha1(filename + "?checksum=" + checksum) + file_extension`
* since the output dir is based on the source url and the checksum, when the checksum fails, the file is auto deleted.
* a download file is protected and locked by a file lock,
* updated docs
* updated go modules and vendors
2019-03-13 07:11:58 -04:00
|
|
|
// Copyright 2016, Google Inc.
|
|
|
|
|
// All rights reserved.
|
|
|
|
|
//
|
|
|
|
|
// Redistribution and use in source and binary forms, with or without
|
|
|
|
|
// modification, are permitted provided that the following conditions are
|
|
|
|
|
// met:
|
|
|
|
|
//
|
|
|
|
|
// * Redistributions of source code must retain the above copyright
|
|
|
|
|
// notice, this list of conditions and the following disclaimer.
|
|
|
|
|
// * Redistributions in binary form must reproduce the above
|
|
|
|
|
// copyright notice, this list of conditions and the following disclaimer
|
|
|
|
|
// in the documentation and/or other materials provided with the
|
|
|
|
|
// distribution.
|
|
|
|
|
// * Neither the name of Google Inc. nor the names of its
|
|
|
|
|
// contributors may be used to endorse or promote products derived from
|
|
|
|
|
// this software without specific prior written permission.
|
|
|
|
|
//
|
|
|
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
|
|
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
|
|
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
|
|
|
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
|
|
|
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
|
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
|
|
|
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
|
|
|
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
|
|
|
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
|
|
|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
|
|
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
|
|
|
|
|
|
// Package gax contains a set of modules which aid the development of APIs
|
|
|
|
|
// for clients and servers based on gRPC and Google API conventions.
|
|
|
|
|
//
|
|
|
|
|
// Application code will rarely need to use this library directly.
|
|
|
|
|
// However, code generated automatically from API definition files can use it
|
|
|
|
|
// to simplify code generation and to provide more convenient and idiomatic API surfaces.
|
|
|
|
|
package gax
|
|
|
|
|
|
|
|
|
|
// Version specifies the gax-go version being used.
|
2019-09-06 05:59:23 -04:00
|
|
|
const Version = "2.0.4"
|