/
open.go
54 lines (43 loc) · 1013 Bytes
/
open.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
package cmd
import (
"errors"
"flag"
"fmt"
"os"
)
type openCmd struct {
parent *flag.FlagSet
cmd *flag.FlagSet
archDiagramPath *string
}
func NewOpenCmd(parent *flag.FlagSet) (*openCmd, error) {
nCmd := &openCmd{
parent: parent,
}
nCmd.cmd = flag.NewFlagSet("normal", flag.ExitOnError)
nCmd.archDiagramPath = nCmd.cmd.String("p", "", fmt.Sprintf(
"[required] target arch diagram path \n(e.g. %s)", "dddplayer/arch.dot"))
err := nCmd.cmd.Parse(parent.Args()[1:])
if err != nil {
return nil, err
}
return nCmd, nil
}
func (oc *openCmd) Usage() {
oc.cmd.Usage()
}
func (oc *openCmd) Run() error {
if *oc.archDiagramPath == "" {
oc.cmd.Usage()
return errors.New("please specify a target arch diagram path")
}
_, err := os.Stat(*oc.archDiagramPath)
if os.IsNotExist(err) {
return fmt.Errorf("file %s does not exist", *oc.archDiagramPath)
}
dotStr, err := os.ReadFile(*oc.archDiagramPath)
if err != nil {
return err
}
return open(string(dotStr))
}