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
|
package cmd
import (
"bytes"
"fmt"
"io/ioutil"
"os"
"strings"
"github.com/99designs/gqlgen/api"
"github.com/99designs/gqlgen/plugin/servergen"
"github.com/99designs/gqlgen/codegen/config"
"github.com/pkg/errors"
"github.com/urfave/cli"
yaml "gopkg.in/yaml.v2"
)
var configComment = `
# .gqlgen.yml example
#
# Refer to https://gqlgen.com/config/
# for detailed .gqlgen.yml documentation.
`
var schemaDefault = `
# GraphQL schema example
#
# https://gqlgen.com/getting-started/
type Todo {
id: ID!
text: String!
done: Boolean!
user: User!
}
type User {
id: ID!
name: String!
}
type Query {
todos: [Todo!]!
}
input NewTodo {
text: String!
userId: String!
}
type Mutation {
createTodo(input: NewTodo!): Todo!
}
`
var initCmd = cli.Command{
Name: "init",
Usage: "create a new gqlgen project",
Flags: []cli.Flag{
cli.BoolFlag{Name: "verbose, v", Usage: "show logs"},
cli.StringFlag{Name: "config, c", Usage: "the config filename"},
cli.StringFlag{Name: "server", Usage: "where to write the server stub to", Value: "server/server.go"},
cli.StringFlag{Name: "schema", Usage: "where to write the schema stub to", Value: "schema.graphql"},
},
Action: func(ctx *cli.Context) {
initSchema(ctx.String("schema"))
config := initConfig(ctx)
GenerateGraphServer(config, ctx.String("server"))
},
}
func GenerateGraphServer(cfg *config.Config, serverFilename string) {
err := api.Generate(cfg, api.AddPlugin(servergen.New(serverFilename)))
if err != nil {
fmt.Fprintln(os.Stderr, err.Error())
}
fmt.Fprintf(os.Stdout, "Exec \"go run ./%s\" to start GraphQL server\n", serverFilename)
}
func initConfig(ctx *cli.Context) *config.Config {
var cfg *config.Config
var err error
configFilename := ctx.String("config")
if configFilename != "" {
cfg, err = config.LoadConfig(configFilename)
} else {
cfg, err = config.LoadConfigFromDefaultLocations()
}
if cfg != nil {
fmt.Fprintf(os.Stderr, "init failed: a configuration file already exists\n")
os.Exit(1)
}
if !os.IsNotExist(errors.Cause(err)) {
fmt.Fprintln(os.Stderr, err.Error())
os.Exit(1)
}
if configFilename == "" {
configFilename = "gqlgen.yml"
}
cfg = config.DefaultConfig()
cfg.Resolver = config.PackageConfig{
Filename: "resolver.go",
Type: "Resolver",
}
var buf bytes.Buffer
buf.WriteString(strings.TrimSpace(configComment))
buf.WriteString("\n\n")
var b []byte
b, err = yaml.Marshal(cfg)
if err != nil {
fmt.Fprintln(os.Stderr, "unable to marshal yaml: "+err.Error())
os.Exit(1)
}
buf.Write(b)
err = ioutil.WriteFile(configFilename, buf.Bytes(), 0644)
if err != nil {
fmt.Fprintln(os.Stderr, "unable to write cfg file: "+err.Error())
os.Exit(1)
}
return cfg
}
func initSchema(schemaFilename string) {
_, err := os.Stat(schemaFilename)
if !os.IsNotExist(err) {
return
}
err = ioutil.WriteFile(schemaFilename, []byte(strings.TrimSpace(schemaDefault)), 0644)
if err != nil {
fmt.Fprintln(os.Stderr, "unable to write schema file: "+err.Error())
os.Exit(1)
}
}
|
