Fix update for feeds where all articles have the same URL. Closes #3

CHANGELOG.md

@@ -0,0 +1,57 @@
+# Changelog
+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 does NOT adhere to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+
+## [Unreleased]
+
+
+## [0.9.3] - 2019-03-14
+### Added
+- Changelog
+- UI: Show body tag in article tooltip if abstract tag is empty
+
+### Fixed
+- 'Update all feeds' will shows unread items count properly during update
+- Fixed update for feeds where all article URLs point to the same resource (issue: #3)
+
+
+## [0.9.2] - 2019-03-07
+### Added
+- Limit number of articles that are displayed in feed menu (issue: #2)
+
+### Fixed
+- Cmd+Q in preferences will close the window instead of quitting the application
+- Crash when libxml2 encountered and set an error
+- libxml2 will ignore lower ascii characters (0x00–0x1F)
+
+
+## [0.9.1] - 2019-02-14
+### Added
+- Mark single article as un/read (hold down option key and click on article)
+
+### Fixed
+- Mouse click on 'Done' button, while entering a new feed URL, will start download properly
+- Use guid url if link is not set (issue: #1)
+- Issue with feeds not being detected if XML tags start after 4kb
+- Support uppercase schemes (e.g., 'FEED:')
+- UI: Hide 'Next update in -25yrs'
+- UI: Show alert after click on 'Fix Cache'
+
+### Changed
+- Auto increment build number
+- Removed static images for group icon, default feed icon, and warning icon
+- Remove html tags from abstract on save (not on display)
+
+
+## [0.9] - 2019-02-11
+Initial release
+
+
+[Unreleased]: https://github.com/relikd/baRSS/compare/v0.9.2...HEAD
+[0.9.3]: https://github.com/relikd/baRSS/compare/v0.9.2...v0.9.3
+[0.9.2]: https://github.com/relikd/baRSS/compare/v0.9.1...v0.9.2
+[0.9.1]: https://github.com/relikd/baRSS/compare/v0.9...v0.9.1
+[0.9]: https://github.com/relikd/baRSS/compare/e1f36514a8aa2d5fb9a575b6eb19adc2ce4a04d9...v0.9

baRSS.xcodeproj/project.pbxproj

@@ -106,6 +106,7 @@
 		546FC4462118A8E6007CC3A3 /* Preferences.xib */ = {isa = PBXFileReference; lastKnownFileType = file.xib; path = Preferences.xib; sourceTree = "<group>"; };
 		5477D34C21233C62002BA27F /* FeedGroup+Ext.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "FeedGroup+Ext.h"; sourceTree = "<group>"; };
 		5477D34D21233C62002BA27F /* FeedGroup+Ext.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = "FeedGroup+Ext.m"; sourceTree = "<group>"; };
+		54892F1D2235285700271CBA /* CHANGELOG.md */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = net.daringfireball.markdown; path = CHANGELOG.md; sourceTree = "<group>"; };
 		5496B50F214D6275003ED4ED /* UserPrefs.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = UserPrefs.h; sourceTree = "<group>"; };
 		5496B510214D6275003ED4ED /* UserPrefs.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = UserPrefs.m; sourceTree = "<group>"; };
 		54A07A7D220E04CF00082C51 /* NSFetchRequest+Ext.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "NSFetchRequest+Ext.h"; sourceTree = "<group>"; };
@@ -251,6 +252,7 @@
 			isa = PBXGroup;
 			children = (
 				540CD14821C094A2004AB594 /* README.md */,
+				54892F1D2235285700271CBA /* CHANGELOG.md */,
 				54ACC27E21061B3B0020715F /* baRSS */,
 				54CC042D2162532800A48795 /* baRSS-Helper */,
 				54ACC27D21061B3B0020715F /* Products */,

baRSS/Core Data/Feed+Ext.m

@@ -92,9 +92,9 @@
 		self.group.name = obj.title;
 	
 	// Add and remove articles
-	NSMutableSet<NSString*> *urls = [[self.articles valueForKeyPath:@"link"] mutableCopy];
-	NSInteger diff = [self addMissingArticles:obj updateLinks:urls]; // will remove links in 'urls' that should be kept
-	diff -= [self deleteArticlesWithLink:urls]; // remove old, outdated articles
+	NSMutableSet<FeedArticle*> *oldSet = [self.articles mutableCopy];
+	NSInteger diff = [self addMissingArticles:obj withOldSet:oldSet]; // will remove items that should be kept
+	diff -= [self deleteArticlesWithOldSet:oldSet]; // remove old, outdated articles
 	// Get new total article count and post unread-count-change notification
 	if (flag && diff != 0) {
 		[[NSNotificationCenter defaultCenter] postNotificationName:kNotificationTotalUnreadCountChanged object:@(diff)];
@@ -108,9 +108,10 @@
  New articles should be in ascending order without any gaps in between.
  If new article is disjunct from the article before, assume a deleted article re-appeared and mark it as read.
  
- @param urls Input will be used to identify new articles. Output will contain URLs that aren't present in the feed anymore.
+ @param oldSet Input will be used to identify new articles.
+               Output contains articles that aren't present in the feed anymore and should be deleted.
  */
-- (NSInteger)addMissingArticles:(RSParsedFeed*)obj updateLinks:(NSMutableSet<NSString*>*)urls {
+- (NSInteger)addMissingArticles:(RSParsedFeed*)obj withOldSet:(NSMutableSet<FeedArticle*>*)oldSet {
 	NSInteger newOnes = 0;
 	int32_t currentIndex = [[self.articles valueForKeyPath:@"@min.sortIndex"] intValue];
 	FeedArticle *lastInserted = nil;
@@ -118,10 +119,10 @@
 	
 	for (RSParsedArticle *article in [obj.articles reverseObjectEnumerator]) {
 		// reverse enumeration ensures correct article order
-		if ([urls containsObject:article.link]) {
-			[urls removeObject:article.link];
-			FeedArticle *storedArticle = [self findArticleWithLink:article.link]; // TODO: use two synced arrays?
-			if (storedArticle && storedArticle.sortIndex != currentIndex) {
+		FeedArticle *storedArticle = [self findArticle:article inSet:oldSet];
+		if (storedArticle) {
+			[oldSet removeObject:storedArticle];
+			if (storedArticle.sortIndex != currentIndex) {
 				storedArticle.sortIndex = currentIndex;
 			}
 			hasGapBetweenNewArticles = YES;
@@ -146,26 +147,19 @@
 }
 
 /**
- Delete all items where @c link matches one of the URLs in the @c NSSet.
+ Delete all articles from core data, that are still in the oldSet.
  */
-- (NSUInteger)deleteArticlesWithLink:(NSMutableSet<NSString*>*)urls {
-	if (!urls || urls.count == 0)
+- (NSUInteger)deleteArticlesWithOldSet:(NSMutableSet<FeedArticle*>*)oldSet {
+	if (!oldSet || oldSet.count == 0)
 		return 0;
 	NSUInteger c = 0;
-	for (FeedArticle *fa in self.articles) {
-		if ([urls containsObject:fa.link]) {
-			[urls removeObject:fa.link];
+	for (FeedArticle *fa in oldSet) {
 		if (fa.unread) ++c;
 		// TODO: keep unread articles?
 		[self.managedObjectContext deleteObject:fa];
-			if (urls.count == 0)
-				break;
-		}
-	}
-	NSSet<FeedArticle*> *delArticles = [self.managedObjectContext deletedObjects];
-	if (delArticles.count > 0) {
-		[self removeArticles:delArticles];
 	}
+	if (oldSet.count > 0)
+		[self removeArticles:oldSet];
 	return c;
 }
 
@@ -183,12 +177,18 @@
 }
 
 /**
- Iterate over all Articles and return the one where @c .link matches. Or @c nil if no matching article found.
+ Iterate over oldSet and return the one where @c link and @c guid matches. Or @c nil if no matching article found.
  */
-- (FeedArticle*)findArticleWithLink:(NSString*)url {
-	for (FeedArticle *a in self.articles) {
-		if ([a.link isEqualToString:url])
-			return a;
+- (FeedArticle*)findArticle:(RSParsedArticle*)article inSet:(NSSet<FeedArticle*>*)oldSet {
+	NSString *searchLink = article.link;
+	NSString *searchGuid = article.guid;
+	BOOL linkIsNil = (searchLink == nil);
+	BOOL guidIsNil = (searchGuid == nil);
+	for (FeedArticle *old in oldSet) {
+		if ((linkIsNil && old.link == nil) || [old.link isEqualToString:searchLink]) {
+			if ((guidIsNil && old.guid == nil) || [old.guid isEqualToString:searchGuid])
+				return old;
+		}
 	}
 	return nil;
 }

baRSS/Core Data/FeedArticle+Ext.m

@@ -67,7 +67,7 @@
 	item.title = [self shortArticleName];
 	item.enabled = (self.link.length > 0);
 	item.state = (self.unread && [UserPrefs defaultYES:@"feedTickMark"] ? NSControlStateValueOn : NSControlStateValueOff);
-	item.toolTip = self.abstract;
+	item.toolTip = (self.abstract ? self.abstract : self.body); // fall back to body (html)
 	item.representedObject = self.objectID;
 	item.target = [self class];
 	item.action = @selector(didClickOnMenuItem:);

baRSS/Core Data/FeedMeta+Ext.m

@@ -34,7 +34,9 @@
 		self.errorCount = 0;
 	int16_t n = self.errorCount + 1; // always increment errorCount (can be used to indicate bad feeds)
 	// TODO: remove logging
+#ifdef DEBUG
 	NSLog(@"ERROR: Feed download failed: %@ (errorCount: %d)", self.url, n);
+#endif
 	if ([self.scheduled timeIntervalSinceNow] > 30) // forced, early update. Scheduled is still in the futute.
 		return; // Keep error counter low. Not enough time has passed (e.g., temporary server outage)
 	NSTimeInterval retryWaitTime = pow(2, (n > 13 ? 13 : n)) * 60; // 2^N (between: 2 minutes and 5.7 days)

baRSS/Helper/FeedDownload.m

@@ -123,7 +123,9 @@ static BOOL _nextUpdateIsForced = NO;
  Called when schedule timer runs out (earliest @c .schedule date). Or if forced by user request.
  */
 + (void)updateTimerCallback {
+#ifdef DEBUG
 	NSLog(@"fired");
+#endif
 	BOOL updateAll = _nextUpdateIsForced;
 	_nextUpdateIsForced = NO;
 	
@@ -303,7 +305,7 @@ static BOOL _nextUpdateIsForced = NO;
 				needsNotification = YES;
 			}
 		}
-		[StoreCoordinator saveContext:moc andParent:NO];
+		[StoreCoordinator saveContext:moc andParent:YES];
 		if (needsNotification)
 			[[NSNotificationCenter defaultCenter] postNotificationName:kNotificationFeedUpdated object:oid];
 		if (block) block(success);
@@ -400,7 +402,7 @@ static BOOL _nextUpdateIsForced = NO;
 	[self downloadFavicon:faviconURL finished:^(NSImage *img) {
 		Feed *f = [moc objectWithID:oid];
 		if (f && [f setIconImage:img]) {
-			[StoreCoordinator saveContext:moc andParent:NO];
+			[StoreCoordinator saveContext:moc andParent:YES];
 			[[NSNotificationCenter defaultCenter] postNotificationName:kNotificationFeedIconUpdated object:oid];
 		}
 		if (block) block();

baRSS/Info.plist

@@ -17,7 +17,7 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>0.9.2</string>
+	<string>0.9.3</string>
 	<key>CFBundleURLTypes</key>
 	<array>
 		<dict>
@@ -32,7 +32,7 @@
 		</dict>
 	</array>
 	<key>CFBundleVersion</key>
-	<string>1122</string>
+	<string>1153</string>
 	<key>LSMinimumSystemVersion</key>
 	<string>$(MACOSX_DEPLOYMENT_TARGET)</string>
 	<key>LSUIElement</key>

baRSS/Status Bar Menu/BarMenu.m

@@ -154,6 +154,7 @@
 		[self.unreadMap updateAllCounts:updated forPath:feed.indexPath];
 		// 2. rebuild articles menu if it is open
 		if (item.submenu.isFeedMenu) { // menu item is visible
+			item.image = [feed iconImage16];
 			item.enabled = (feed.articles.count > 0);
 			if (item.submenu.numberOfItems > 0) { // replace articles menu
 				[item.submenu removeAllItems];