mirrored from https://chromium.googlesource.com/infra/luci/luci-go
-
Notifications
You must be signed in to change notification settings - Fork 43
/
calc_pin.go
45 lines (39 loc) · 1.36 KB
/
calc_pin.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
// Copyright 2018 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 reader
import (
"context"
api "go.chromium.org/luci/cipd/api/cipd/v1"
"go.chromium.org/luci/cipd/client/cipd/pkg"
"go.chromium.org/luci/cipd/common"
)
type noopCloserSrc struct {
pkg.Source
}
func (noopCloserSrc) Close(ctx context.Context, corrupt bool) error { return nil }
// CalculatePin returns a pin that represents the package.
//
// It reads the package name from the manifest inside, and calculates package's
// hash to get instance ID.
func CalculatePin(ctx context.Context, src pkg.Source, algo api.HashAlgo) (common.Pin, error) {
inst, err := OpenInstance(ctx, noopCloserSrc{src}, OpenInstanceOpts{
VerificationMode: CalculateHash,
HashAlgo: algo,
})
if err != nil {
return common.Pin{}, err
}
defer inst.Close(ctx, false)
return inst.Pin(), nil
}