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Don't process OPML file if it hasn't changed since it was last produced. Issue #1428

This commit is contained in:
Maurice Parker 2019-12-10 14:10:07 -07:00
parent 358f386c4b
commit b8ef6c7549
3 changed files with 20 additions and 12 deletions
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4
Frameworks/Account/Account.swift
View File

@ -1161,10 +1161,10 @@ extension Account: OPMLRepresentable {
public func OPMLString(indentLevel: Int, strictConformance: Bool) -> String {
var s = ""
for feed in topLevelWebFeeds {
for feed in topLevelWebFeeds.sorted(by: { $0.nameForDisplay < $1.nameForDisplay }) {
s += feed.OPMLString(indentLevel: indentLevel + 1, strictConformance: strictConformance)
}
for folder in folders! {
for folder in folders!.sorted(by: { $0.nameForDisplay < $1.nameForDisplay }) {
s += folder.OPMLString(indentLevel: indentLevel + 1, strictConformance: strictConformance)
}
return s

2
Frameworks/Account/Folder.swift
View File

@ -189,7 +189,7 @@ extension Folder: OPMLRepresentable {
var hasAtLeastOneChild = false
for feed in topLevelWebFeeds {
for feed in topLevelWebFeeds.sorted(by: { $0.nameForDisplay < $1.nameForDisplay }) {
s += feed.OPMLString(indentLevel: indentLevel + 1, strictConformance: strictConformance)
hasAtLeastOneChild = true
}

24
Frameworks/Account/OPMLFile.swift
View File

@ -49,7 +49,17 @@ final class OPMLFile {
private extension OPMLFile {
func loadCallback() {
guard let opmlItems = parsedOPMLItems() else { return }
guard let fileData = opmlFileData() else {
return
}
// Don't rebuild the account if the OPML hasn't changed since the last save
guard let opml = String(data: fileData, encoding: .utf8), opml != opmlDocument() else {
return
}
guard let opmlItems = parsedOPMLItems(fileData: fileData) else { return }
BatchUpdate.shared.perform {
account.topLevelWebFeeds.removeAll()
account.loadOPMLItems(opmlItems, parentFolder: nil)
@ -77,8 +87,7 @@ private extension OPMLFile {
}
}
func parsedOPMLItems() -> [RSOPMLItem]? {
func opmlFileData() -> Data? {
var fileData: Data? = nil
let errorPointer: NSErrorPointer = nil
let fileCoordinator = NSFileCoordinator(filePresenter: managedFile)
@ -98,11 +107,11 @@ private extension OPMLFile {
os_log(.error, log: log, "OPML read from disk coordination failed: %@.", error.localizedDescription)
}
guard let opmlData = fileData else {
return nil
}
return fileData
}
let parserData = ParserData(url: fileURL.absoluteString, data: opmlData)
func parsedOPMLItems(fileData: Data) -> [RSOPMLItem]? {
let parserData = ParserData(url: fileURL.absoluteString, data: fileData)
var opmlDocument: RSOPMLDocument?
do {
@ -113,7 +122,6 @@ private extension OPMLFile {
}
return opmlDocument?.children
}
func opmlDocument() -> String {