From 70caca9ca036828995cc9200e6b4d1b09993a301 Mon Sep 17 00:00:00 2001
From: Mirror <voice@magicalmirro.red>
Date: Mon, 22 Feb 2021 22:30:34 +0300
Subject: [PATCH] Try to not overwrite existing files

---
 pixiv/downloader.go | 29 +++++++++++++++++------------
 1 file changed, 17 insertions(+), 12 deletions(-)

diff --git a/pixiv/downloader.go b/pixiv/downloader.go
index d2ac912..356979b 100644
--- a/pixiv/downloader.go
+++ b/pixiv/downloader.go
@@ -51,21 +51,26 @@ func (p *Pixiv) downloadIllust(i Illust) (err error) {
 		if err != nil {
 			return err
 		}
-		outfile, err := os.Create(file.directory + file.filename)
-		if err != nil {
-			return err
-		}
-		defer outfile.Close()
-		//log.Printf("Downloading %s to %s", file.url, outfile.Name())
-		err = p.downloadTo(file.url, outfile)
-		if err != nil {
-			return err
-		}
-		if p.setxattr {
-			err = syscall.Setxattr(outfile.Name(), "user.xdg.tags", []byte(i.TagsString()), 0)
+		if _, err = os.Stat(file.directory + file.filename); os.IsNotExist(err) {
+			outfile, err := os.Create(file.directory + file.filename)
 			if err != nil {
 				return err
 			}
+			defer outfile.Close()
+			//log.Printf("Downloading %s to %s", file.url, outfile.Name())
+			err = p.downloadTo(file.url, outfile)
+			if err != nil {
+				return err
+			}
+			if p.setxattr {
+				err = syscall.Setxattr(outfile.Name(), "user.xdg.tags", []byte(i.TagsString()), 0)
+				if err != nil {
+					return err
+				}
+			}
+		} else {
+			err = nil
+			continue
 		}
 	}
 	return