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using System;
using System.IO;
using System.Net;
using System.Linq;
using System.Threading;
using System.Xml.Linq;
namespace macdoc
{
public class AppleDocHandler
{
public class AppleDocInformation
{
public Version Version { get; set; }
public string ID { get; set; }
public DateTime UpdateDate { get; set; }
public string DownloadUrl { get; set; }
}
readonly string[] searchPaths = new[] {
"/Applications/Xcode.app/Contents/Developer/Documentation/DocSets/",
"/Library/Developer/Shared/Documentation/DocSets/",
"/Developer/Platforms/iPhoneOS.platform/Developer/Documentation/DocSets/"
};
const string MonodocLibPath = "/Library/Frameworks/Mono.framework/External/monodoc/";
const string MonoTouchLibPath = "/Developer/MonoTouch/usr/lib/mono/2.1/monotouch.dll";
public const string Ios5AtomFeed = "https://developer.apple.com/rss/com.apple.adc.documentation.AppleiPhone5_0.atom";
public const string Ios6AtomFeed = "https://developer.apple.com/rss/com.apple.adc.documentation.AppleiPhone6.0.atom";
public const string MacLionAtomFeed = "http://developer.apple.com/rss/com.apple.adc.documentation.AppleLion.atom";
public const string MacMountainLionFeed = "https://developer.apple.com/rss/com.apple.adc.documentation.AppleOSX10_8.atom";
readonly XNamespace docsetNamespace = "http://developer.apple.com/rss/docset_extensions";
readonly XNamespace atomNamespace = "http://www.w3.org/2005/Atom";
readonly string baseApplicationPath;
XDocument appleFeed;
public AppleDocHandler (string baseApplicationPath)
{
this.baseApplicationPath = baseApplicationPath;
}
// We load the atom field that contains a timeline of the modifications down to documentation by Apple
XDocument LoadAppleFeed (string feedUrl)
{
if (appleFeed != null)
return appleFeed;
WebClient wc = new WebClient ();
var feed = wc.DownloadString (feedUrl);
return appleFeed = XDocument.Parse (feed);
}
// This method transforms the Atom XML data into a POCO for the the most recent item of the feed
AppleDocInformation GetLatestAppleDocInformation (XDocument feed)
{
var latestEntry = feed.Descendants (atomNamespace + "entry").LastOrDefault ();
if (latestEntry == null)
return null;
var infos = new AppleDocInformation () {
Version = CloneFillWithZeros (new Version (latestEntry.Element (docsetNamespace + "version").Value)),
ID = latestEntry.Element (docsetNamespace + "identifier").Value,
UpdateDate = DateTime.Parse (latestEntry.Element (atomNamespace + "updated").Value),
DownloadUrl = latestEntry.Element (atomNamespace + "link").Attribute ("href").Value
};
return infos;
}
// This method read the Info.plist available in all Apple .docset to get the version of the bundle
Version GetAppleDocVersion (string directory)
{
var plist = Path.Combine (directory, "Contents", "Info.plist");
if (!File.Exists (plist))
return null;
var doc = XDocument.Load (plist);
var version = doc.Descendants ("key")
.First (k => k.Value.Equals ("CFBundleVersion", StringComparison.Ordinal))
.ElementsAfterSelf ()
.First ()
.Value;
return CloneFillWithZeros (new Version (version));
}
// This method checks that an iOS documentation set is installed on the user machine
// and also checks if it's the latest available
bool CheckAppleDocAvailabilityAndFreshness (AppleDocInformation infos)
{
var path = searchPaths
.Select (p => Path.Combine (p, infos.ID + ".docset"))
.FirstOrDefault (p => Directory.Exists (p));
if (path == null)
return false;
var installedVersion = GetAppleDocVersion (path);
return installedVersion >= infos.Version;
}
// atom feed is one of the Apple documentation feed, iOS and Lion are given in const form above
// returns true if the documentation was updated, false otherwise. The progressDelegate parameter
// is given the completion percentage
public bool CheckAppleDocFreshness (string atomFeed, out AppleDocInformation infos)
{
var feed = LoadAppleFeed (atomFeed);
infos = GetLatestAppleDocInformation (feed);
var needRefresh = !CheckAppleDocAvailabilityAndFreshness (infos);
return needRefresh;
}
public bool CheckMergedDocumentationFreshness (AppleDocInformation infos, Product product)
{
var statusFile = Path.Combine (baseApplicationPath, "macdoc");
if (!Directory.Exists (statusFile)) {
try {
Directory.CreateDirectory (statusFile);
} catch {}
return true;
}
statusFile = Path.Combine (statusFile, product == Product.MonoMac ? "merge.mac.status" : "merge.status");
if (!File.Exists (statusFile))
return true;
if (!string.IsNullOrEmpty (Environment.GetEnvironmentVariable ("APPLEDOCWIZARD_FORCE_MERGE")))
return true;
var mergedVersion = CloneFillWithZeros (new Version (File.ReadAllText (statusFile)));
return mergedVersion != infos.Version;
}
static Version CloneFillWithZeros (Version v)
{
if (v == null)
return null;
int major = v.Major == -1 ? 0 : v.Major;
int minor = v.Minor == -1 ? 0 : v.Minor;
int build = v.Build == -1 ? 0 : v.Build;
int revision = v.Revision == -1 ? 0 : v.Revision;
return new Version (major, minor, build, revision);
}
}
}
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