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similarity_id.go
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/
similarity_id.go
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package similarity
import (
"crypto/sha256"
"encoding/hex"
"path/filepath"
"strings"
"github.com/rs/zerolog/log"
)
// ComputeSimilarityID This function receives four string parameters and computes a sha256 hash
func ComputeSimilarityID(basePaths []string, filePath, queryID, searchKey, searchValue string) (*string, error) {
basePath := ""
for _, path := range basePaths {
if strings.Contains(filepath.ToSlash(filePath), filepath.ToSlash(path)) {
basePath = filepath.ToSlash(path)
break
}
}
standardizedPath, err := standardizeToRelativePath(basePath, filePath)
if err != nil {
log.Debug().Msgf("Error while standardizing path: %s", err)
}
var stringNode = standardizedPath + queryID + searchKey + searchValue
hashSum := sha256.Sum256([]byte(stringNode))
similarity := hex.EncodeToString(hashSum[:])
return &similarity, nil
}
func standardizeToRelativePath(basePath, path string) (string, error) {
cleanPath := filepath.Clean(path)
standardPath := filepath.ToSlash(cleanPath)
basePath = filepath.ToSlash(basePath)
relativeStandardPath, err := filepath.Rel(basePath, standardPath)
if err != nil {
return "", err
}
return filepath.ToSlash(relativeStandardPath), nil
}