private ValidationResult PopulateBranchNameTemplate(
SettingsContainer settings)
{
var settingsFromFile = FileSettingsCache.GetSettings();
var value = Concat.FirstValue(BranchNameTemplate, settingsFromFile.BranchNameTemplate);
if (string.IsNullOrWhiteSpace(value))
{
settings.BranchSettings.BranchNameTemplate = null;
return(ValidationResult.Success);
}
// Validating git branch names: https://stackoverflow.com/a/12093994/1661209
// We validate the user defined branch name prefix in combination with a actual branch name that NuKeeper could create.
// We want to validate the combination since the prefix doesn't need to fully comply with the rules (E.G. 'nukeeper/' is not allowed soley as a branch name).
var tokenErrors = new StringBuilder();
var tokenSet = Regex.Matches(value, @"{(\w+)}").Select(match => match.Groups[1].Value);
foreach (var token in tokenSet)
{
if (!BranchNamer.IsValidTemplateToken(token))
{
tokenErrors.Append($",{token}");
}
}
// Check for valid placeholders
if (tokenErrors.Length > 0)
{
return(ValidationResult.Failure(
$"Provided branch template has unknown tokens: '{tokenErrors.ToString().Trim(',')}'."));
}
// Test if the generated branchname would be ok.
// We assume tokens will be generated in valid values, so we use dummy values here
var tokenValues = new Dictionary <string, string>();
foreach (var token in BranchNamer.TemplateTokens)
{
tokenValues.Add(token, "dummy");
}
var validationValue = BranchNamer.MakeName(tokenValues, value);
if (!Regex.IsMatch(validationValue, @"^(?!@$|build-|/|.*([/.]\.|//|@\{|\\))[^\000-\037\177 ~^:?*[]+/[^\000-\037\177 ~^:?*[]+(?<!\.lock|[/.])$"))
{
return(ValidationResult.Failure(
$"Provided branch template '{value}' does not comply with branch naming rules."));
}
settings.BranchSettings.BranchNameTemplate = value;
return(ValidationResult.Success);
}
