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file_extractor.go
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/
file_extractor.go
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package fileextractor
import (
"io/ioutil"
"log"
"os"
"path/filepath"
"regexp"
"strings"
)
type FileExtractor struct {
founds map[string]string
}
type ExtractParams struct {
SearchPath string
Excludes []string
Expression string
}
func (l *FileExtractor) Extract(params ExtractParams) ([]string, error) {
l.founds = map[string]string{}
err := filepath.Walk(params.SearchPath,
func(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
if strings.HasSuffix(path, ".go") &&
!strings.HasSuffix(path, "_test.go") &&
!strings.HasSuffix(path, "_gen.go") &&
!strings.HasSuffix(path, "generated.go") {
l.extractFormFile(path, params.Expression)
}
return err
})
if err != nil {
return nil, err
}
var foundsSlice []string
for key := range l.founds {
foundsSlice = append(foundsSlice, key)
}
return foundsSlice, err
}
func (l *FileExtractor) extractFormFile(pathToread string, expression string) {
fileContent, err := l.readFile(pathToread)
if err != nil {
log.Fatal(err)
}
reg := *regexp.MustCompile(expression)
res := reg.FindAllStringSubmatch(fileContent, -1)
for i := range res {
l.founds[res[i][1]] = ""
}
}
func (l *FileExtractor) readFile(pathToread string) (string, error) {
file, err := os.Open(pathToread)
if err != nil {
log.Fatal(err)
return "", err
}
defer file.Close()
srcbuf, err := ioutil.ReadAll(file)
if err != nil {
log.Fatal(err)
return "", err
}
return string(srcbuf), nil
}
func NewFileExtractor() *FileExtractor {
return &FileExtractor{}
}