private static IEnumerable<string> ReadCvsIgnoreFile(FileContent file)
{
var content = file.Data.ToString();
int start = 0;
bool seenEscape = false;
for (int i = 0; i < content.Length; i++)
{
if (content[i] == '\\')
{
seenEscape = !seenEscape;
}
else
{
if (Char.IsWhiteSpace(content[i]))
{
if (!seenEscape)
{
// end of filename
if (start < i)
yield return content.Substring(start, i - start);
start = i + 1;
}
}
seenEscape = false;
}
}
if (start < content.Length)
yield return content.Substring(start);
}
public static FileContent Rewrite(FileContent file)
{
string newFilename;
var lastSlash = file.Name.LastIndexOf('/');
if (lastSlash >= 0)
newFilename = file.Name.Remove(lastSlash + 1) + ".gitignore";
else
newFilename = ".gitignore";
if (file.IsDead)
{
return FileContent.CreateDeadFile(newFilename);
}
else
{
var lines = from i in ReadCvsIgnoreFile(file)
where i.Length > 0
select TranslateEntry(i);
var newContent = lines.Aggregate(
new StringBuilder(),
(buf, line) => buf.AppendFormat("{0}{1}", line, Environment.NewLine),
buf => buf.ToString());
var bytes = Encoding.UTF8.GetBytes(newContent);
return new FileContent(newFilename, new FileContentData(bytes));
}
}
private static void UpdateCache(string cachedPath, FileContent contents)
{
if (contents.Data.Length > int.MaxValue)
throw new NotSupportedException("Cannot currently cope with files larger than 2 GB");
Directory.CreateDirectory(Path.GetDirectoryName(cachedPath));
var tempFile = cachedPath + ".tmp";
try
{
// create temp file in case we're interrupted
using (var stream = new FileStream(tempFile, FileMode.CreateNew))
{
stream.Write(contents.Data.Data, 0, (int)contents.Data.Length);
}
File.Move(tempFile, cachedPath);
}
finally
{
try { File.Delete(tempFile); } catch { }
}
}
public static bool IsIgnoreFile(FileContent file)
{
return String.Equals(Path.GetFileName(file.Name), ".cvsignore", StringComparison.OrdinalIgnoreCase);
}
public static bool IsIgnoreFile(FileContent file)
{
return(String.Equals(Path.GetFileName(file.Name), ".cvsignore", StringComparison.OrdinalIgnoreCase));
}