forked from 99designs/gqlgen
/
resolver.go
100 lines (86 loc) · 2.32 KB
/
resolver.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
package config
import (
"fmt"
"go/types"
"path/filepath"
"strings"
"github.com/99designs/gqlgen/internal/code"
)
type ResolverConfig struct {
Filename string `yaml:"filename,omitempty"`
FilenameTemplate string `yaml:"filename_template,omitempty"`
Package string `yaml:"package,omitempty"`
Type string `yaml:"type,omitempty"`
Layout ResolverLayout `yaml:"layout,omitempty"`
DirName string `yaml:"dir"`
}
type ResolverLayout string
var (
LayoutSingleFile ResolverLayout = "single-file"
LayoutFollowSchema ResolverLayout = "follow-schema"
)
func (r *ResolverConfig) Check() error {
if r.Layout == "" {
r.Layout = LayoutSingleFile
}
if r.Type == "" {
r.Type = "Resolver"
}
switch r.Layout {
case LayoutSingleFile:
if r.Filename == "" {
return fmt.Errorf("filename must be specified with layout=%s", r.Layout)
}
if !strings.HasSuffix(r.Filename, ".go") {
return fmt.Errorf("filename should be path to a go source file with layout=%s", r.Layout)
}
r.Filename = abs(r.Filename)
case LayoutFollowSchema:
if r.DirName == "" {
return fmt.Errorf("dirname must be specified with layout=%s", r.Layout)
}
r.DirName = abs(r.DirName)
if r.Filename == "" {
r.Filename = filepath.Join(r.DirName, "resolver.go")
} else {
r.Filename = abs(r.Filename)
}
default:
return fmt.Errorf("invalid layout %s. must be %s or %s", r.Layout, LayoutSingleFile, LayoutFollowSchema)
}
if strings.ContainsAny(r.Package, "./\\") {
return fmt.Errorf("package should be the output package name only, do not include the output filename")
}
if r.Package == "" && r.Dir() != "" {
r.Package = code.NameForDir(r.Dir())
}
return nil
}
func (r *ResolverConfig) ImportPath() string {
if r.Dir() == "" {
return ""
}
return code.ImportPathForDir(r.Dir())
}
func (r *ResolverConfig) Dir() string {
switch r.Layout {
case LayoutSingleFile:
if r.Filename == "" {
return ""
}
return filepath.Dir(r.Filename)
case LayoutFollowSchema:
return r.DirName
default:
panic("invalid layout " + r.Layout)
}
}
func (r *ResolverConfig) Pkg() *types.Package {
if r.Dir() == "" {
return nil
}
return types.NewPackage(r.ImportPath(), r.Package)
}
func (r *ResolverConfig) IsDefined() bool {
return r.Filename != "" || r.DirName != ""
}