/// <summary>
/// Read all the text of a file in one go, same as File.ReadAllText expect it's truly a read only function
/// </summary>
public static string ReadAllText(string path, Encoding encoding = null)
{
try {
using (var fileStream = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)) {
using (var textReader = new StreamReader(fileStream, encoding ?? TextEncodingDetect.GetFileEncoding(path))) {
return(textReader.ReadToEnd());
}
}
} catch (Exception e) {
throw new Exception($"Can not read the file {path.PrettyQuote()}.", e);
}
}
/// <summary>
/// Reads all the line of either the filePath (if the file exists) or from byte array dataResources,
/// Apply the action toApplyOnEachLine to each line
/// Uses encoding as the Encoding to read the file or convert the byte array to a string
/// Uses the char # as a comment in the file
/// </summary>
public static bool ForEachLine(string filePath, byte[] dataResources, Action <int, string> toApplyOnEachLine, Encoding encoding = null, Action <Exception> onException = null)
{
encoding = encoding ?? TextEncodingDetect.GetFileEncoding(filePath);
var wentOk = true;
try {
SubForEachLine(filePath, dataResources, toApplyOnEachLine, encoding);
} catch (Exception e) {
wentOk = false;
onException?.Invoke(e);
// read default file, if it fails then we can't do much but to throw an exception anyway...
if (dataResources != null)
{
SubForEachLine(null, dataResources, toApplyOnEachLine, encoding);
}
}
return(wentOk);
}
