forked from raystack/stencil
/
diff.go
156 lines (138 loc) · 4.35 KB
/
diff.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
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
package cmd
import (
"context"
"encoding/json"
"fmt"
"github.com/MakeNowJust/heredoc"
"github.com/goto/salt/printer"
stencilv1beta1 "github.com/goto/stencil/proto/v1beta1"
"github.com/spf13/cobra"
"github.com/yudai/gojsondiff"
"github.com/yudai/gojsondiff/formatter"
"google.golang.org/protobuf/encoding/protojson"
"google.golang.org/protobuf/proto"
"google.golang.org/protobuf/reflect/protodesc"
"google.golang.org/protobuf/reflect/protoreflect"
"google.golang.org/protobuf/types/descriptorpb"
)
func diffSchemaCmd(cdk *CDK) *cobra.Command {
var fullname string
var namespace string
var earlierVersion int32
var laterVersion int32
var schemaFetcher = func(req *stencilv1beta1.GetSchemaRequest, client stencilv1beta1.StencilServiceClient) ([]byte, error) {
res, err := client.GetSchema(context.Background(), req)
if err != nil {
return nil, err
}
return res.Data, nil
}
var protoSchemaFetcher = func(req *stencilv1beta1.GetSchemaRequest, client stencilv1beta1.StencilServiceClient) ([]byte, error) {
if fullname == "" {
return nil, fmt.Errorf("fullname flag is mandator for FORMAT_PROTO")
}
res, err := client.GetSchema(context.Background(), req)
if err != nil {
return nil, err
}
fds := &descriptorpb.FileDescriptorSet{}
if err := proto.Unmarshal(res.Data, fds); err != nil {
return nil, fmt.Errorf("descriptor set file is not valid. %w", err)
}
files, err := protodesc.NewFiles(fds)
if err != nil {
return nil, fmt.Errorf("file is not fully contained descriptor file. hint: generate file descriptorset with --include_imports option. %w", err)
}
desc, err := files.FindDescriptorByName(protoreflect.FullName(fullname))
if err != nil {
return nil, fmt.Errorf("unable to find message. %w", err)
}
mDesc, ok := desc.(protoreflect.MessageDescriptor)
if !ok {
return nil, fmt.Errorf("not a message desc")
}
jsonByte, err := protojson.Marshal(protodesc.ToDescriptorProto(mDesc))
if err != nil {
return nil, fmt.Errorf("fail to convert json. %w", err)
}
return jsonByte, nil
}
cmd := &cobra.Command{
Use: "diff",
Short: "Diff(s) of two schema versions",
Args: cobra.ExactArgs(1),
Example: heredoc.Doc(`
$ stencil schema diff booking -n=goto --later-version=2 --earlier-version=1 --fullname=<fullname>
`),
RunE: func(cmd *cobra.Command, args []string) error {
spinner := printer.Spin("")
defer spinner.Stop()
schemaID := args[0]
metaReq := stencilv1beta1.GetSchemaMetadataRequest{
NamespaceId: namespace,
SchemaId: schemaID,
}
eReq := &stencilv1beta1.GetSchemaRequest{
NamespaceId: namespace,
SchemaId: schemaID,
VersionId: earlierVersion,
}
lReq := &stencilv1beta1.GetSchemaRequest{
NamespaceId: namespace,
SchemaId: schemaID,
VersionId: laterVersion,
}
client, cancel, err := createClient(cmd, cdk)
if err != nil {
return err
}
defer cancel()
meta, err := client.GetSchemaMetadata(context.Background(), &metaReq)
if err != nil {
return err
}
var getSchema = schemaFetcher
if meta.Format == *stencilv1beta1.Schema_FORMAT_PROTOBUF.Enum() {
getSchema = protoSchemaFetcher
}
eJson, err := getSchema(eReq, client)
if err != nil {
return err
}
lJson, err := getSchema(lReq, client)
if err != nil {
return err
}
d, err := gojsondiff.New().Compare(eJson, lJson)
if err != nil {
return err
}
var placeholder map[string]interface{}
json.Unmarshal(eJson, &placeholder)
config := formatter.AsciiFormatterConfig{
ShowArrayIndex: true,
Coloring: true,
}
formatter := formatter.NewAsciiFormatter(placeholder, config)
diffString, err := formatter.Format(d)
if err != nil {
return err
}
spinner.Stop()
if !d.Modified() {
fmt.Print("No diff!")
return nil
}
fmt.Print(diffString)
return nil
},
}
cmd.Flags().StringVarP(&namespace, "namespace", "n", "", "Parent namespace ID")
cmd.MarkFlagRequired("namespace")
cmd.Flags().Int32Var(&earlierVersion, "earlier-version", 0, "Earlier version of the schema")
cmd.MarkFlagRequired("earlier-version")
cmd.Flags().Int32Var(&laterVersion, "later-version", 0, "Later version of the schema")
cmd.MarkFlagRequired("later-version")
cmd.Flags().StringVar(&fullname, "fullname", "", "Only applicable for FORMAT_PROTO. fullname of proto schema eg: goto.common.v1.Version")
return cmd
}