/
parse-by-file.go
232 lines (186 loc) · 5.14 KB
/
parse-by-file.go
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package gomodifytags
import (
"fmt"
"os"
"strings"
)
func newDefaultConfig() *config {
return &config{
file: "", //Filename to be parsed
line: "", //Line number of the field or a range of line. i.e: 4 or 4,
structName: "", //Struct name to be processed
fieldName: "", //Field name to be processed
fieldSeparator: "|",
offset: 0, //Byte offset of the cursor position inside a struct.Can be anwhere from the comment until closing bracket
all: false, //Select all structs to be processed
output: "source", //Output format. By default it's the whole file. Options: [source, json]
write: false, //Write result to (source) file instead of stdout
clear: false, //Clear all tags
clearOption: false, //Clear all tag options
transform: "snakecase", //Transform adds a transform rule when adding tags. Current options: [snakecase, camelcase, lispcase, pascalcase, keep]
sort: false, //Sort sorts the tags in increasing order according to the key name
override: false, //Override current tags when adding tags
skipUnexportedFields: false, //Skip unexported fields
}
}
func OverrideJSON_File(fileName string, structName string, fieldName string, jsonName string, withOmitEmpty bool) error {
cfg := newDefaultConfig()
cfg.file = fileName
cfg.structName = structName
cfg.fieldName = fieldName
cfg.write = true
cfg.override = true
cfg.skipUnexportedFields = true
var flagModified bool
var flagAddTags, flagAddOptions, flagRemoveTags, flagRemoveOptions string
flagAddTags = "json:" + jsonName
if withOmitEmpty {
flagAddOptions = "json=omitempty"
}
/* override original function realMain */
if flagModified {
cfg.modified = os.Stdin
}
if flagAddTags != "" {
cfg.add = strings.Split(flagAddTags, ",")
}
if flagAddOptions != "" {
cfg.addOptions = strings.Split(flagAddOptions, ",")
}
if flagRemoveTags != "" {
cfg.remove = strings.Split(flagRemoveTags, ",")
}
if flagRemoveOptions != "" {
cfg.removeOptions = strings.Split(flagRemoveOptions, ",")
}
err := cfg.validate()
if err != nil {
return err
}
node, err := cfg.parse()
if err != nil {
return err
}
start, end, err := cfg.findSelection(node)
if err != nil {
return err
}
rewrittenNode, errs := cfg.rewrite(node, start, end)
if errs != nil {
if _, ok := errs.(*rewriteErrors); !ok {
return errs
}
}
out, err := cfg.format(rewrittenNode, errs)
if err != nil {
return err
}
if !cfg.write {
fmt.Println(out)
}
return nil
}
func AddValidate_File(fileName string, structName string, fieldName string, validationRuleTag []string) error {
cfg := newDefaultConfig()
cfg.file = fileName
cfg.structName = structName
cfg.fieldName = fieldName
cfg.write = true
var flagModified bool
var flagAddTags, flagAddOptions, flagRemoveTags, flagRemoveOptions string
flagAddTags = "validate:" + strings.Join(validationRuleTag, "|")
/* override original function realMain */
if flagModified {
cfg.modified = os.Stdin
}
if flagAddTags != "" {
cfg.add = strings.Split(flagAddTags, ",")
}
if flagAddOptions != "" {
cfg.addOptions = strings.Split(flagAddOptions, ",")
}
if flagRemoveTags != "" {
cfg.remove = strings.Split(flagRemoveTags, ",")
}
if flagRemoveOptions != "" {
cfg.removeOptions = strings.Split(flagRemoveOptions, ",")
}
err := cfg.validate()
if err != nil {
return err
}
node, err := cfg.parse()
if err != nil {
return err
}
start, end, err := cfg.findSelection(node)
if err != nil {
return err
}
rewrittenNode, errs := cfg.rewrite(node, start, end)
if errs != nil {
if _, ok := errs.(*rewriteErrors); !ok {
return errs
}
}
out, err := cfg.format(rewrittenNode, errs)
if err != nil {
return err
}
if !cfg.write {
fmt.Println(out)
}
return nil
}
func AddDefault_File(fileName string, structName string, fieldName string, defaultValue string) error {
cfg := newDefaultConfig()
cfg.file = fileName
cfg.structName = structName
cfg.fieldName = fieldName
cfg.write = true
var flagModified bool
var flagAddTags, flagAddOptions, flagRemoveTags, flagRemoveOptions string
flagAddTags = "default:" + defaultValue
/* override original function realMain */
if flagModified {
cfg.modified = os.Stdin
}
if flagAddTags != "" {
cfg.add = strings.Split(flagAddTags, ",")
}
if flagAddOptions != "" {
cfg.addOptions = strings.Split(flagAddOptions, ",")
}
if flagRemoveTags != "" {
cfg.remove = strings.Split(flagRemoveTags, ",")
}
if flagRemoveOptions != "" {
cfg.removeOptions = strings.Split(flagRemoveOptions, ",")
}
err := cfg.validate()
if err != nil {
return err
}
node, err := cfg.parse()
if err != nil {
return err
}
start, end, err := cfg.findSelection(node)
if err != nil {
return err
}
rewrittenNode, errs := cfg.rewrite(node, start, end)
if errs != nil {
if _, ok := errs.(*rewriteErrors); !ok {
return errs
}
}
out, err := cfg.format(rewrittenNode, errs)
if err != nil {
return err
}
if !cfg.write {
fmt.Println(out)
}
return nil
}