🚑 Don't panic when adding a feed/page for the first time

Fixes #151

CHANGELOG.md

@@ -4,6 +4,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.7.1] - 2020-12-21
+### Fixed
+- Fixed bug that caused Amfora to crash when subscribing to a page (#151)
+
+
 ## [1.7.0] - 2020-12-20
 ### Added
 - **Subscriptions** to feeds and page changes (#61)

amfora.go

@@ -11,7 +11,7 @@ import (
 )
 
 var (
-	version = "v1.7.0"
+	version = "v1.7.1"
 	commit  = "unknown"
 	builtBy = "unknown"
 )

subscriptions/subscriptions.go

@@ -60,9 +60,12 @@ func Init() error {
 	} else if !os.IsNotExist(err) {
 		// There's an error opening the file, but it's not bc is doesn't exist
 		return fmt.Errorf("open subscriptions.json error: %w", err)
-	} else {
-		// File does not exist, initialize maps
+	}
+
+	if data.Feeds == nil {
 		data.Feeds = make(map[string]*gofeed.Feed)
+	}
+	if data.Pages == nil {
 		data.Pages = make(map[string]*pageJSON)
 	}