private static string FormatText(string message, string filePath, int lineNumber, string memberName)
{
const int sourceColumnMaxWidth = 23;
EnsureArgument.NotNull(message, nameof(message));
EnsureArgument.NotNull(filePath, nameof(filePath));
EnsureArgument.PositiveOrZero(lineNumber, nameof(lineNumber));
EnsureArgument.NotNull(memberName, nameof(memberName));
// Source column format is file:line
string source = $"{filePath}:{lineNumber}";
if (source.Length > sourceColumnMaxWidth)
{
int idx = 0;
int maxlen = sourceColumnMaxWidth - 3;
int srclen = source.Length;
while (idx >= 0 && (srclen - idx) > maxlen)
{
idx = source.IndexOf('\\', idx + 1);
}
// If we cannot find a path separator which allows the path to be long enough, just truncate the file name
if (idx < 0)
{
idx = srclen - maxlen;
}
source = "..." + source.Substring(idx);
}
// Git's trace format is "{timestamp,-15} {source,-23} trace: {details}"
string text = $"{DateTime.Now:HH:mm:ss.ffffff} {source,-23} trace: [{memberName}] {message}";
return(text);
}
