Ensure files are promptly closed by booktopipeline

1 files changed, 4 insertions, 0 deletions

diff --git a/cmd/booktopipeline/main.go b/cmd/booktopipeline/main.go
index 6d9f146..6e10475 100644
--- a/cmd/booktopipeline/main.go
+++ b/cmd/booktopipeline/main.go
@@ -127,6 +127,10 @@ func main() {
 		if err != nil {
 			log.Fatalln("Failed to upload", path, err)
 		}
+		// Explicitly close here rather than wait for the defer, so we
+		// don't end up with too many open files which can cause os.Open
+		// to fail.
+		file.Close()
 	}
 
 	verboselog.Println("Sending message", bookname, "to queue", qurl)