From 27c8454350b467dd4413231caca66f364e014ff4 Mon Sep 17 00:00:00 2001
From: Lasse Bjerre <lasse@lgb.dk>
Date: Sun, 27 Jun 2021 21:39:44 +0200
Subject: [PATCH] Trim spaces + option to ignore empty

---
 config.example.json | 3 ++-
 monitor/monitor.go  | 8 +++++++-
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/config.example.json b/config.example.json
index 2f0b2cb..2236cf6 100644
--- a/config.example.json
+++ b/config.example.json
@@ -12,7 +12,8 @@
 				"type": "css",
 				"paths": ["#content > dl > dt:nth-child(3)", "#content > dl > dt:nth-child(5)"]
 			},
-			"filters": ["perfection", "success"]
+			"filters": ["perfection", "success"],
+			"ignoreEmpty": true
 		}
 	],
 	"notifiers": {
diff --git a/monitor/monitor.go b/monitor/monitor.go
index 1ad7161..c3e91cb 100644
--- a/monitor/monitor.go
+++ b/monitor/monitor.go
@@ -59,6 +59,7 @@ type Monitor struct {
 	Interval        time.Duration `json:"interval"`
 	Selector        Selector      `json:"selector,omitempty"`
 	Filters         Filters       `json:"filters,omitempty"`
+	IgnoreEmpty     bool          `json:"ignoreEmpty,omitempty"`
 	notifierService NotifierService
 	started         bool
 	doneChannel     chan bool
@@ -226,6 +227,11 @@ func (m *Monitor) check() {
 		return
 	}
 
+	if m.IgnoreEmpty && processedContent == "" {
+		log.Print("Content is empty, ignoring...")
+		return
+	}
+
 	storageContent := m.storage.GetContent(m.id)
 
 	if compareContent(storageContent, processedContent) {
@@ -266,7 +272,7 @@ func processContent(content io.ReadCloser, selector Selector, filters Filters) (
 		selectorContent = processFilters(filters, selectorContent)
 	}
 
-	return selectorContent, nil
+	return strings.TrimSpace(selectorContent), nil
 }
 
 func processFilters(filters Filters, content string) string {