Fix bug creating cache dir

internal/scraper.go

@@ -3,6 +3,7 @@ package internal
 import (
 	"fmt"
 	"io/ioutil"
+	"os"
 	"path/filepath"
 	"regexp"
 
@@ -52,7 +53,14 @@ func Scrape(conf *Config, url string) (*Entry, error) {
 		HTMLContent: article.Content,
 	}
 
-	fn := filepath.Join(conf.Data, cacheDir, fmt.Sprintf("%s.json", entry.Hash()))
+	p := filepath.Join(conf.Data, cacheDir)
+	if err := os.MkdirAll(p, 0755); err != nil {
+		log.WithError(err).Error("error creating cache directory")
+		return nil, fmt.Errorf("error creating cache directory: %w", err)
+	}
+
+	fn := filepath.Join(p, fmt.Sprintf("%s.json", entry.Hash()))
+
 	data, err := entry.Bytes()
 	if err != nil {
 		log.WithError(err).Error("error serializing entry")