/
release_iter.go
137 lines (113 loc) · 2.95 KB
/
release_iter.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
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
package client
import (
"context"
"io"
"math/big"
"github.com/ethereum/go-ethereum/accounts/abi/bind"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto"
"github.com/valist-io/valist/core/types"
)
// ReleaseTagIterator is used to iterate release tags.
type ReleaseTagIterator struct {
client *Client
orgID common.Hash
repoName string
tags []string
page *big.Int
limit *big.Int
}
// ListReleaseTags returns an iterator for retrieving all release tags from the repo with the given repoName and orgID.
func (client *Client) ListReleaseTags(orgID common.Hash, repoName string) types.ReleaseTagIterator {
return &ReleaseTagIterator{
client: client,
orgID: orgID,
repoName: repoName,
page: big.NewInt(1),
limit: big.NewInt(10),
}
}
func (it *ReleaseTagIterator) paginate(ctx context.Context) error {
if len(it.tags) != 0 {
return nil
}
selector := crypto.Keccak256Hash(it.orgID[:], []byte(it.repoName))
callopts := bind.CallOpts{
Context: ctx,
From: it.client.signer.Account().Address,
}
tags, err := it.client.valist.GetReleaseTags(&callopts, selector, it.page, it.limit)
if err != nil {
return err
}
it.tags = tags
it.page.Add(it.page, big.NewInt(1))
return nil
}
// Next returns the next tag in the iterator.
func (it *ReleaseTagIterator) Next(ctx context.Context) (string, error) {
if err := it.paginate(ctx); err != nil {
return "", err
}
if it.tags[0] == "" {
return "", io.EOF
}
tag := it.tags[0]
it.tags = it.tags[1:]
return tag, nil
}
// ForEach calls the given callback for each release tag.
func (it *ReleaseTagIterator) ForEach(ctx context.Context, cb func(string)) error {
for {
tag, err := it.Next(ctx)
if err == io.EOF {
return nil
}
if err != nil {
return err
}
cb(tag)
}
}
// ReleaseIterator is used to iterate releases.
type ReleaseIterator struct {
client *Client
orgID common.Hash
repoName string
tags types.ReleaseTagIterator
}
// ListReleases returns an iterator for retrieving all releases from the repo with the given repoName and orgID.
func (client *Client) ListReleases(orgID common.Hash, repoName string) types.ReleaseIterator {
return &ReleaseIterator{
client: client,
orgID: orgID,
repoName: repoName,
tags: client.ListReleaseTags(orgID, repoName),
}
}
// Next returns the next release from the iterator.
// Returns EOF when no releases are left.
func (it *ReleaseIterator) Next(ctx context.Context) (*types.Release, error) {
tag, err := it.tags.Next(ctx)
if err != nil {
return nil, err
}
release, err := it.client.GetRelease(ctx, it.orgID, it.repoName, tag)
if err != nil {
return nil, err
}
return release, nil
}
// ForEach calls the given callback for each release.
func (it *ReleaseIterator) ForEach(ctx context.Context, cb func(*types.Release)) error {
for {
release, err := it.Next(ctx)
if err == io.EOF {
return nil
}
if err != nil {
return err
}
cb(release)
}
}