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Commit96da5ae

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ci: addupdate-appcast script (#171)
Third PR for#47.Adds a script to update an existing `appcast.xml`.This will be called in CI to update the appcast before uploading it back to our feed URL (`releases.coder.com/...`). It's currently not used anywhere.Invoked like:```swift run update-appcast -i appcast.xml -s CoderDesktop.pkg.sig -v 0.5.1 -o appcast.xml -d ${{ github.event.release.body }}```To update an appcast that looks like:<details><summary>appcast.xml</summary>```xml<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss xmlns:sparkle="http://www.andymatuschak.org/xml-namespaces/sparkle" version="2.0"> <channel> <title>Coder Desktop</title> <item> <title>v0.5.1</title> <description><![CDATA[<h2>What's Changed</h2><ul><li>fix: don't create http client if signed out by@ethanndickson in <a href="https://github.com/coder/coder-deskt%E2%80%A6r-desktop-macos/pull/170">https://github.com/coder/coder-deskt…r-desktop-macos/pull/170</a></li></ul><p><strong>Full Changelog</strong>: <a href="https://github.com/coder/coder-desktop-macos/compare/v0.5.0...v0.5.1">https://github.com/coder/coder-desktop-macos/compare/v0.5.0...v0.5.1</a></p>]]></description> <pubDate>Thu, 29 May 2025 06:08:56 +0000</pubDate> <sparkle:channel>stable</sparkle:channel> <sparkle:version>0.5.1</sparkle:version> <sparkle:fullReleaseNotesLink>https://github.com/coder/coder-desktop-macos/releases</sparkle:fullReleaseNotesLink> <sparkle:minimumSystemVersion>14.0.0</sparkle:minimumSystemVersion> <enclosure url="https://github.com/coder/coder-desktop-macos/releases/download/v0.5.1/Coder-Desktop.pkg" type="application/octet-stream" sparkle:installationType="package" sparkle:edSignature="NkyCj7Lzpw95P0N95SQHiBCjDLZYVukbRR3aOjGZAuL5Dc+I//DfTCRFCxoQNhA38uu/CCAR8v9E4SgMkDdmAA==" length="39630183"></enclosure> </item> <item> <title>Preview</title> <pubDate>Thu, 29 May 2025 06:08:08 +0000</pubDate> <sparkle:channel>preview</sparkle:channel> <sparkle:version>0.5.0.3</sparkle:version> <sparkle:fullReleaseNotesLink>https://github.com/coder/coder-desktop-macos/releases</sparkle:fullReleaseNotesLink> <sparkle:minimumSystemVersion>14.0.0</sparkle:minimumSystemVersion> <enclosure url="https://github.com/coder/coder-desktop-macos/releases/download/preview/Coder-Desktop.pkg" type="application/octet-stream" sparkle:installationType="package" sparkle:edSignature="L0cFeyoy+D/Zgm3eXok87SKmgIUka8m2b+g7UWPReF4UhFUb4RlDsZ5PxXKd5MrtsaODGUz2iRMWraO7aQg+DA==" length="39630898"></enclosure> </item> </channel></rss>```</details>Producing a notification like:<img width="620" alt="image" src="https://github.com/user-attachments/assets/acae89d6-5d39-4464-bf60-7beac66af9c7" />
1 parent65f4619 commit96da5ae

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‎.gitignore

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@@ -291,7 +291,7 @@ xcuserdata
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**/xcshareddata/WorkspaceSettings.xcsettings
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### VSCode & Sweetpad ###
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.vscode/**
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**/.vscode/**
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buildServer.json
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# End of https://www.toptal.com/developers/gitignore/api/xcode,jetbrains,macos,direnv,swift,swiftpm,objective-c

‎.swiftlint.yml

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# TODO: Remove this once the grpc-swift-protobuf generator adds a lint disable comment
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excluded:
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-"**/*.pb.swift"
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-"**/*.grpc.swift"
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-"**/*.grpc.swift"
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-"**/.build/"

‎scripts/update-appcast/.swiftlint.yml

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disabled_rules:
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-todo
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-trailing_comma

‎scripts/update-appcast/Package.swift

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// swift-tools-version: 6.0
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// The swift-tools-version declares the minimum version of Swift required to build this package.
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import PackageDescription
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letpackage=Package(
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name:"update-appcast",
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platforms:[
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.macOS(.v15),
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],
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dependencies:[
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.package(url:"https://github.com/apple/swift-argument-parser", from:"1.3.0"),
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.package(url:"https://github.com/loopwerk/Parsley", from:"0.5.0"),
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],
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targets:[
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.executableTarget(
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name:"update-appcast", dependencies:[
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.product(name:"ArgumentParser",package:"swift-argument-parser"),
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.product(name:"Parsley",package:"Parsley"),
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]
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),
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]
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)
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import ArgumentParser
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import Foundation
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import RegexBuilder
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#if canImport(FoundationXML)
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import FoundationXML
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#endif
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import Parsley
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/// UpdateAppcast
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/// -------------
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/// Replaces an existing `<item>` for the **stable** or **preview** channel
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/// in a Sparkle RSS feed with one containing the new version, signature, and
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/// length attributes. The feed will always contain one item for each channel.
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/// Whether the passed version is a stable or preview version is determined by the
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/// number of components in the version string:
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/// - Stable: `X.Y.Z`
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/// - Preview: `X.Y.Z.N`
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/// `N` is the build number - the number of commits since the last stable release.
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@main
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structUpdateAppcast:AsyncParsableCommand{
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staticletconfiguration=CommandConfiguration(
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abstract:"Updates a Sparkle appcast with a new release entry."
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)
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@Option(name:.shortAndLong, help:"Path to the appcast file to be updated.")
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varinput:String
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@Option(
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name:.shortAndLong,
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help:"""
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Path to the signature file generated for the release binary.
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Signature files are generated by `Sparkle/bin/sign_update
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"""
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)
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varsignature:String
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@Option(name:.shortAndLong, help:"The project version (X.Y.Z for stable builds, X.Y.Z.N for preview builds).")
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varversion:String
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@Option(name:.shortAndLong, help:"A description of the release written in GFM.")
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vardescription:String?
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@Option(name:.shortAndLong, help:"Path where the updated appcast should be written.")
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varoutput:String
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mutatingfunc validate()throws{
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guardFileManager.default.fileExists(atPath: signature)else{
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throwValidationError("No file exists at path\(signature).")
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}
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guardFileManager.default.fileExists(atPath: input)else{
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throwValidationError("No file exists at path\(input).")
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}
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}
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// swiftlint:disable:next function_body_length
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mutatingfunc run()asyncthrows{
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letchannel:UpdateChannel=isStable(version: version)?.stable:.preview
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letsigLine=tryString(contentsOfFile: signature, encoding:.utf8)
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.trimmingCharacters(in:.whitespacesAndNewlines)
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guardlet match= sigLine.firstMatch(of: signatureRegex)else{
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throwRuntimeError("Unable to parse signature file:\(sigLine)")
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}
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letedSignature= match.output.1
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guardlet length= match.output.2else{
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throwRuntimeError("Unable to parse length from signature file.")
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}
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letxmlData=tryData(contentsOf:URL(fileURLWithPath: input))
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letdoc=tryXMLDocument(data: xmlData, options:.nodePrettyPrint)
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guardlet channelElem=try doc.nodes(forXPath:"/rss/channel").firstas?XMLElementelse{
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throwRuntimeError("<channel> element not found in appcast.")
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}
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guardlet insertionIndex=(channelElem.children??[])
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.enumerated()
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.first(where:{ _, nodein
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guardlet item= nodeas?XMLElement,
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item.name=="item",
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item.elements(forName:"sparkle:channel")
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.first?.stringValue== channel.rawValue
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else{returnfalse}
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returntrue
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})?.offset
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else{
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throwRuntimeError("No existing item found for channel\(channel.rawValue).")
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}
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// Delete the existing item
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channelElem.removeChild(at: insertionIndex)
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letitem=XMLElement(name:"item")
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switch channel{
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case.stable:
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item.addChild(XMLElement(name:"title", stringValue:"v\(version)"))
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case.preview:
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item.addChild(XMLElement(name:"title", stringValue:"Preview"))
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}
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iflet description{
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letdescription= description.replacingOccurrences(of:#"\r\n"#, with:"\n")
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letdescriptionDoc:Document
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do{
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descriptionDoc=tryParsley.parse(description)
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}catch{
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throwRuntimeError("Failed to parse GFM description:\(error)")
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}
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// <description><![CDATA[ …HTML… ]]></description>
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letdescriptionElement=XMLElement(name:"description")
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letcdata=XMLNode(kind:.text, options:.nodeIsCDATA)
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lethtml= descriptionDoc.body
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cdata.stringValue= html
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descriptionElement.addChild(cdata)
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item.addChild(descriptionElement)
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}
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item.addChild(XMLElement(name:"pubDate", stringValue:rfc822Date()))
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item.addChild(XMLElement(name:"sparkle:channel", stringValue: channel.rawValue))
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item.addChild(XMLElement(name:"sparkle:version", stringValue: version))
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item.addChild(XMLElement(
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name:"sparkle:fullReleaseNotesLink",
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stringValue:"https://github.com/coder/coder-desktop-macos/releases"
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))
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item.addChild(XMLElement(
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name:"sparkle:minimumSystemVersion",
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stringValue:"14.0.0"
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))
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letenclosure=XMLElement(name:"enclosure")
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func addEnclosureAttr(_ name:String, _ value:String){
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// Force-casting is the intended API usage.
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// swiftlint:disable:next force_cast
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enclosure.addAttribute(XMLNode.attribute(withName: name, stringValue: value)as!XMLNode)
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}
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addEnclosureAttr("url",downloadURL(for: version, channel: channel))
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addEnclosureAttr("type","application/octet-stream")
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addEnclosureAttr("sparkle:installationType","package")
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addEnclosureAttr("sparkle:edSignature", edSignature)
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addEnclosureAttr("length",String(length))
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item.addChild(enclosure)
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channelElem.insertChild(item, at: insertionIndex)
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letoutputStr= doc.xmlString(options:[.nodePrettyPrint])+"\n"
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try outputStr.write(to:URL(fileURLWithPath: output), atomically:true, encoding:.utf8)
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}
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privatefunc isStable(version:String)->Bool{
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// A version is a release version if it has three components (X.Y.Z)
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guardlet match= version.firstMatch(of: versionRegex)else{returnfalse}
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return match.output.4==nil
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}
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privatefunc downloadURL(for version:String, channel:UpdateChannel)->String{
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switch channel{
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case.stable:"https://github.com/coder/coder-desktop-macos/releases/download/v\(version)/Coder-Desktop.pkg"
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case.preview:"https://github.com/coder/coder-desktop-macos/releases/download/preview/Coder-Desktop.pkg"
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}
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}
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privatefunc rfc822Date(date:Date=Date())->String{
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letfmt=DateFormatter()
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fmt.locale=Locale(identifier:"en_US_POSIX")
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fmt.timeZone=TimeZone(secondsFromGMT:0)
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fmt.dateFormat="EEE, dd MMM yyyy HH:mm:ss Z"
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return fmt.string(from: date)
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}
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}
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enumUpdateChannel:String{case stable, preview}
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structRuntimeError:Error,CustomStringConvertible{
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varmessage:String
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vardescription:String{ message}
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init(_ message:String){self.message= message}
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}
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extensionRegex:@retroactive@uncheckedSendable{}
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// Matches CFBundleVersion format: X.Y.Z or X.Y.Z.N
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letversionRegex=Regex{
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Anchor.startOfLine
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Capture{
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OneOrMore(.digit)
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} transform:{Int($0)!}
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"."
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Capture{
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OneOrMore(.digit)
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} transform:{Int($0)!}
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"."
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Capture{
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OneOrMore(.digit)
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} transform:{Int($0)!}
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Optionally{
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Capture{
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"."
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OneOrMore(.digit)
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} transform:{Int($0.dropFirst())!}
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}
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Anchor.endOfLine
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}
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letsignatureRegex=Regex{
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"sparkle:edSignature=\""
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Capture{
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OneOrMore(.reluctant){
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NegativeLookahead{"\""}
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CharacterClass.any
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}
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} transform:{String($0)}
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"\""
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OneOrMore(.whitespace)
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"length=\""
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Capture{
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OneOrMore(.digit)
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} transform:{Int64($0)}
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"\""
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}

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