public void Inflate(PersistentCache persistentCache)
{
var knownSegments = new HashSet <string>();
var parallelTasks = new List <Task>();
foreach (var distributionName in LessRegistry.CssDistributions.Keys)
{
foreach (var item in LessAggregation.EnumerateAllItems(_sourcePath, distributionName))
{
LessAggregation.CheckLessDuplicates(item);
foreach (var segment in item.Segments)
{
if (knownSegments.Contains(segment.Key))
{
continue;
}
knownSegments.Add(segment.Key);
parallelTasks.Add(new Task(delegate()
{
var paths = segment.LessFiles.Select(i => Path.Combine(_sourcePath, i));
var bag = persistentCache.Get(new[] { "css", segment.Key }, paths, delegate()
{
if (distributionName == LessRegistry.CSS_DISTRIBUTION_DEFAULT)
{
CheckUnusedLessConsts(paths);
}
var css = LessAggregation.CompileLessPaths(paths);
css = ImageInliner.InlineImages(css, _sourcePath);
css = CssHelper.StripCommentsOnly(css);
return(new Dictionary <string, string> {
{ "_", css }
});
});
_SegmentCache[segment.Key] = bag["_"];
}));
}
}
}
foreach (var t in parallelTasks)
{
t.Start();
if (Utils.IsDocker())
{
// limit CPU usage in Docker builds
t.Wait();
}
}
Task.WaitAll(parallelTasks.ToArray());
}
static void CheckUnusedLessConsts(IEnumerable <string> paths)
{
var lessContent = new StringBuilder();
foreach (var path in paths)
{
lessContent.AppendLine(LessAggregation.InlineImports(path));
}
var lessContentWithoutComments = CssHelper.StripCommentsOnly(lessContent.ToString());
var matches = Regex.Matches(lessContentWithoutComments, @"@\{?(\w[\w-]*)\}?", RegexOptions.Multiline);
var counts = new Dictionary <string, int>();
var cssConst = new[] { "charset", "font-face", "import", "media", "page" };
var multiWidgetConsts = FindMultiWidgetConsts(lessContentWithoutComments);
foreach (Match match in matches)
{
var text = match.Groups[1].Value;
if (cssConst.Contains(text))
{
continue;
}
if (!counts.ContainsKey(text))
{
counts[text] = 1;
}
else
{
counts[text]++;
}
}
var failures = counts
.Where(entry => entry.Value == 1)
.Where(entry => !multiWidgetConsts.Contains(StripFirstWord(entry.Key)))
.ToArray();
if (failures.Length > 0)
{
foreach (var entry in failures)
{
Console.WriteLine("Warning: " + entry.Key + " is unused");
}
throw new Exception("Unused LESS consts were found");
}
}