forked from anz-bank/sysl
/
cmd_export.go
115 lines (105 loc) · 3.13 KB
/
cmd_export.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
package command
import (
"fmt"
"os"
"path/filepath"
"strings"
"github.com/Joshcarp/sysl/pkg/exporter"
sysl "github.com/Joshcarp/sysl/pkg/sysl"
"github.com/sirupsen/logrus"
"github.com/spf13/afero"
"gopkg.in/alecthomas/kingpin.v2"
)
type exportCmd struct {
appName string
out string
mode string
format string
}
const (
swaggerMode = "swagger"
jsonMode = "json"
yamlMode = "yaml"
)
func (p *exportCmd) Name() string { return "export" }
func (p *exportCmd) MaxSyslModule() int { return 1 }
func (p *exportCmd) Configure(app *kingpin.Application) *kingpin.CmdClause {
cmd := app.Command(p.Name(), "Export sysl to external types. Supported types: Swagger")
cmd.Flag("app-name", "name of the sysl app defined in sysl model."+
" if there are multiple apps defined in sysl model,"+
" swagger will be generated only for the given app").Short('a').StringVar(&p.appName)
cmd.Flag("format", "format of export, supported options; swagger").Default("swagger").Short('f').StringVar(&p.mode)
cmd.Flag("output", "output filepath.format(yaml | json) (default: %(appname).yaml)").Default(
"%(appname).yaml").Short('o').StringVar(&p.out)
EnsureFlagsNonEmpty(cmd)
return cmd
}
func (p *exportCmd) writeSwaggerForApp(
fs afero.Fs,
filename string,
syslApp *sysl.Application,
logger *logrus.Logger,
) error {
var output []byte
if p.mode == swaggerMode {
swaggerExporter := exporter.MakeSwaggerExporter(syslApp, logger)
err := swaggerExporter.GenerateSwagger()
if err != nil {
logger.Warnf("Error generating swagger for the application %s", err)
return err
}
output, err = swaggerExporter.SerializeOutput(p.format)
if err != nil {
return err
}
} else {
return fmt.Errorf("unsupported export format")
}
dir, err := filepath.Abs(filepath.Dir(filename))
if err != nil {
return err
}
if _, err := os.Stat(dir); os.IsNotExist(err) {
logger.Debugf("Target folder does not exist %s", err)
if err = os.Mkdir(dir, 0755); err != nil {
logger.Errorf("Error creating target folder; check permission")
return err
}
}
err = afero.WriteFile(fs, filename, output, os.ModePerm)
if err != nil {
return err
}
return nil
}
func (p *exportCmd) Execute(args ExecuteArgs) error {
err := p.determineOperationMode(p.out)
if err != nil {
return err
}
if strings.Contains(p.out, "%(appname)") {
for appName, syslApp := range args.Modules[0].GetApps() {
outputFileName := MakeFormatParser(p.out).LabelApp(appName, "", syslApp.GetAttrs())
err := p.writeSwaggerForApp(args.Filesystem, outputFileName, syslApp, args.Logger)
if err != nil {
return err
}
}
return nil
} else if syslApp, syslAppFound := args.Modules[0].GetApps()[p.appName]; syslAppFound {
return p.writeSwaggerForApp(args.Filesystem, p.out, syslApp, args.Logger)
}
return fmt.Errorf("app not found in the Sysl file")
}
func (p *exportCmd) determineOperationMode(filename string) error {
fileExtn := strings.TrimLeft(filepath.Ext(filepath.Base(filename)), ".")
switch fileExtn {
case jsonMode:
p.format = jsonMode
case yamlMode:
p.format = yamlMode
default:
return fmt.Errorf("invalid output file format %s", fileExtn)
}
return nil
}