Set up IMAP connections while fetching and filtering feeds

1 files changed, 17 insertions, 9 deletions

diff --git a/main.go b/main.go
index 86a6ddf..26582b7 100644
--- a/main.go
+++ b/main.go
@@ -101,24 +101,32 @@ func run() error {
 		return nil
 	}
 
-	if success := state.Fetch(); success == 0 {
-		return fmt.Errorf("No successful feed fetch.")
-	}
-
-	state.Filter()
-
+	imapErr := make(chan error, 1)
 	var c *imap.Client
 	if !dryRun && !buildCache {
-		if c, err = imap.Connect(cfg.Target); err != nil {
-			return err
-		}
+		go func() {
+			var err error
+			c, err = imap.Connect(cfg.Target)
+			imapErr <- err
+		}()
 
 		defer c.Disconnect()
 	}
 
+	if success := state.Fetch(); success == 0 {
+		return fmt.Errorf("No successful feed fetch.")
+	}
+
+	state.Filter()
+
 	if buildCache {
 		state.Foreach(cache.CachedFeed.Commit)
 	} else {
+		if !dryRun {
+			if err = <-imapErr; err != nil {
+				return err
+			}
+		}
 		state.ForeachGo(func(f cache.CachedFeed) {
 			processFeed(f, c, dryRun)
 		})