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swag-json.go
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swag-json.go
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package generate
import (
"bufio"
"bytes"
"encoding/json"
"fmt"
"os"
"strings"
"github.com/spf13/cobra"
"github.com/zhufuyi/sponge/pkg/gofile"
)
// ConvertSwagJSONCommand convert 64-bit fields type string to integer
func ConvertSwagJSONCommand(parentName string) *cobra.Command {
var (
jsonFile string
isSort bool
)
cmd := &cobra.Command{
Use: "swagger",
Short: "Convert 64-bit fields type string to integer",
Long: fmt.Sprintf(`convert 64-bit fields type string to integer
Examples:
# convent file docs/apis.swagger.json.
sponge %s swagger
# convent file test/swagger.json
sponge %s swagger --file=test/swagger.json
# convent file docs/apis.swagger.json and sort json key.
sponge %s swagger --is-sort
`, parentName, parentName, parentName),
SilenceErrors: true,
SilenceUsage: true,
RunE: func(cmd *cobra.Command, args []string) error {
var err error
if isSort {
err = handlerJSONFormatTypeWithSortKey(jsonFile)
} else {
err = handlerJSONFormatType(jsonFile)
}
if err != nil {
return err
}
fmt.Printf("convert json file successfully, out = %s\n", jsonFile)
return nil
},
}
cmd.Flags().BoolVarP(&isSort, "is-sort", "s", false, "formatting json, json's fields are sorted in ascending")
cmd.Flags().StringVarP(&jsonFile, "file", "f", "docs/apis.swagger.json", "input json file")
return cmd
}
func handlerJSONFormatType(jsonFilePath string) error {
newData, err := convertStringToInteger(jsonFilePath)
if err != nil {
return err
}
return saveJSONFile(newData, jsonFilePath)
}
func handlerJSONFormatTypeWithSortKey(jsonFilePath string) error {
data, err := formatJSON(jsonFilePath)
if err != nil {
return err
}
newData, err := convertStringToIntegerWithSortKey(data)
if err != nil {
return err
}
return saveJSONFile(newData, jsonFilePath)
}
func convertStringToInteger(jsonFilePath string) ([]byte, error) {
f, err := os.Open(jsonFilePath)
if err != nil {
return nil, err
}
defer func() {
_ = f.Close()
}()
scanner := bufio.NewScanner(f)
contents := []string{}
for scanner.Scan() {
line := scanner.Text()
if strings.Contains(line, `"format": "uint64"`) || strings.Contains(line, `"format": "int64"`) {
l := len(contents)
previousLine := contents[l-1]
if len(contents) > 0 && strings.Contains(previousLine, `"type": "string"`) {
contents[l-1] = strings.ReplaceAll(previousLine, `"type": "string"`, `"type": "integer"`)
}
}
contents = append(contents, line+"\n")
}
if err := scanner.Err(); err != nil {
return nil, err
}
newData := []byte{}
for _, v := range contents {
newData = append(newData, []byte(v)...)
}
return newData, nil
}
func formatJSON(jsonFilePath string) ([]byte, error) {
content, err := os.ReadFile(jsonFilePath)
if err != nil {
return nil, err
}
var data interface{}
err = json.Unmarshal(content, &data)
if err != nil {
return nil, err
}
indentedJSON, err := json.MarshalIndent(data, "", " ")
if err != nil {
return nil, err
}
return indentedJSON, nil
}
func convertStringToIntegerWithSortKey(data []byte) ([]byte, error) {
scanner := bufio.NewScanner(bytes.NewReader(data))
contents := []string{}
for scanner.Scan() {
line := scanner.Text()
if len(contents) > 0 && strings.Contains(line, `"type": "string"`) {
l := len(contents)
previousLine := contents[l-1]
if strings.Contains(previousLine, `"format": "uint64"`) || strings.Contains(previousLine, `"format": "int64"`) {
if tmpLine := strings.ReplaceAll(line, `"type": "string"`, `"type": "integer"`); line != tmpLine {
line = tmpLine
}
}
}
contents = append(contents, line+"\n")
}
if err := scanner.Err(); err != nil {
return nil, err
}
newData := []byte{}
for _, v := range contents {
newData = append(newData, []byte(v)...)
}
return newData, nil
}
func saveJSONFile(data []byte, jsonFilePath string) error {
if gofile.IsExists(jsonFilePath) {
tmpFile := jsonFilePath + ".tmp"
err := os.WriteFile(tmpFile, data, 0666)
if err != nil {
return err
}
return os.Rename(tmpFile, jsonFilePath)
}
dir := gofile.GetFileDir(jsonFilePath)
_ = os.MkdirAll(dir, 0766)
return os.WriteFile(jsonFilePath, data, 0666)
}