public static async Task <CompilerOptions> Parse(string lessFilePath, string lessContent = null)
{
if (!File.Exists(lessFilePath) || ProjectMap.ShouldIgnore(lessFilePath))
{
return(null);
}
lessContent = lessContent ?? await VsHelpers.ReadFileAsync(lessFilePath);
var options = new CompilerOptions(lessFilePath);
// Compile
if (Path.GetFileName(lessFilePath).StartsWith("_", StringComparison.Ordinal) ||
lessContent.IndexOf("no-compile", StringComparison.OrdinalIgnoreCase) > -1)
{
options.Compile = false;
}
// Minify
if (lessContent.IndexOf("no-minify", StringComparison.OrdinalIgnoreCase) > -1)
{
options.Minify = false;
}
// Arguments
Match argsMatch = _regex.Match(lessContent, 0, Math.Min(500, lessContent.Length));
if (argsMatch.Success)
{
string inFile = Path.GetFileName(options.InputFilePath);
options.Arguments = $"\"{inFile}\" {argsMatch.Groups["args"].Value.TrimEnd('*', '/').Trim()}";
}
// Source map
options.SourceMap = options.Arguments.IndexOf("--source-map", StringComparison.OrdinalIgnoreCase) > -1;
// OutputFileName
Match outMatch = _outFile.Match(options.Arguments);
if (argsMatch.Success && outMatch.Success)
{
string relative = outMatch.Groups["out"].Value.Replace("/", "\\");
options.OutputFilePath = Path.Combine(Path.GetDirectoryName(lessFilePath), relative);
}
else
{
options.OutputFilePath = Path.ChangeExtension(lessFilePath, ".css");
if (argsMatch.Success)
{
options.Arguments += $" \"{Path.GetFileName(options.OutputFilePath)}\"";
}
}
// Trim the argument list
options.Arguments = options.Arguments.Trim();
return(options);
}
private async Task AddFile(string lessFilePath)
{
if (LessFiles.Keys.Any(c => c.InputFilePath == lessFilePath))
{
return;
}
string lessContent = await VsHelpers.ReadFileAsync(lessFilePath);
CompilerOptions options = await CompilerOptions.Parse(lessFilePath, lessContent);
LessFiles.Add(options, new List <CompilerOptions>());
await AddOption(options, lessContent);
}