| // Copyright 2015 The LUCI Authors. |
| // |
| // 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. |
| |
| package cipd |
| |
| import ( |
| "context" |
| "hash" |
| "os" |
| |
| "go.chromium.org/luci/common/errors" |
| |
| "go.chromium.org/luci/cipd/client/cipd/fs" |
| "go.chromium.org/luci/cipd/common" |
| "go.chromium.org/luci/cipd/common/cipderr" |
| ) |
| |
| func (c *clientImpl) installClient(ctx context.Context, fs fs.FileSystem, h hash.Hash, fetchURL, destination, hexDigest string) error { |
| return fs.EnsureFile(ctx, destination, func(of *os.File) error { |
| // TODO(iannucci): worry about owner/group/permissions? |
| if err := c.storage.download(ctx, fetchURL, of, h); err != nil { |
| return err |
| } |
| if got := common.HexDigest(h); got != hexDigest { |
| return errors.Reason("client binary file hash mismatch: expecting %q, got %q", hexDigest, got).Tag(cipderr.HashMismatch).Err() |
| } |
| return nil |
| }) |
| } |
