private void saveCache(String path, ListingCache cache)
{
if (!flags.HasFlag(Options.Nocache))
{
if (flags.HasFlag(Options.Verbose))
{
Console.WriteLine($"Saving cache to {path}");
}
String cacheJSON = JsonConvert.SerializeObject(cache);
File.WriteAllText(path, cacheJSON);
}
}
/// <summary>
/// Call before using the cache dictionary to ensure it is up to date
/// </summary>
/// <returns></returns>
public ListingCache getCache()
{
ListingCache cache;
DirectoryInfo pathInfo = new DirectoryInfo(cachePath);
Action <ListingCache> cacheUpdate = (c) => {
// Gets the latest cache from github
if (flags.HasFlag(Options.Verbose))
{
Console.WriteLine("Updating cache in memory from Github...");
}
c.Update(
Listing.FromJson(
WebFetch.fetch(apiURL)
)
);
if (flags.HasFlag(Options.Verbose))
{
Console.WriteLine("Cache updated!");
}
};
if (File.Exists(pathInfo.FullName))
{
// Load cache from file
cache = JsonConvert.DeserializeObject <ListingCache>(File.ReadAllText(pathInfo.FullName));
cache.flags = flags;
// Get info branch info from Github
Branch master = Branch.FromJson(WebFetch.fetch(branchURL));
if (flags.HasFlag(Options.Verbose))
{
Console.WriteLine($"Cache successfully loaded from {pathInfo.FullName}");
}
// Get the latest commits timestamp
DateTimeOffset lastCommitDate = master.Commit.Commit.Author.Date;
// Check the timestamp
// Could probably get by just checking the last changed time on the file instead of from cache timestamp?
if (DateTimeOffset.Compare(lastCommitDate, cache.TimeStamp) <= 0)
{
if (flags.HasFlag(Options.Verbose))
{
Console.WriteLine($"Cache is outdated.");
}
cacheUpdate(cache);
saveCache(pathInfo.FullName, cache);
}
else if (flags.HasFlag(Options.Verbose))
{
Console.WriteLine($"Cache up to date with Github, no updates needed.");
}
}
else
{
// Cache file doesn't exist, so create it and (if we're allowed) save it
// and (if we're allowed) save it to ~/.getignore.cache
if (flags.HasFlag(Options.Verbose))
{
Console.WriteLine($"No cache found, creating in memory...");
}
cache = new ListingCache(flags);
cacheUpdate(cache);
saveCache(pathInfo.FullName, cache);
}
return(cache);
}
