/// <summary>
/// Creates a props file to find best $(Configuration) from $(BuildConfigurations) for any $(BuildConfiguration)
/// </summary>
private void CreateBuildConfigurationPropsFile(string fileName)
{
var buildConfigurationProps = ProjectRootElement.Create();
// pull apart BuildConfiguration, but don't set any derived properties
// we do this even when Configuration is already set because we want to
// parse out the BuildConfiguration-derived property values as _bc_*.
// In the case Configuration is set we'll not use the parsed values,
// and immediately overwrite them with the values parsed from Configuration.
ParseProperties(BuildConfigurationProperty, buildConfigurationProps, false, p => !p.Independent, "_bc_");
var projectConfigurationNotSet = $"'$({ConfigurationProperty})' == ''";
var buildConfigurationsPropertyGroup = buildConfigurationProps.CreatePropertyGroupElement();
buildConfigurationProps.AppendChild(buildConfigurationsPropertyGroup);
// Only set props used for when Configuration is not set.
buildConfigurationsPropertyGroup.Condition = projectConfigurationNotSet;
// get path to import
var buildConfigurationImportName = $"_import_{BuildConfigurationProperty}_props";
var significantBuildConfiguration = ConfigurationFactory.IdentityConfiguration.GetSignificantConfigurationStrings().First();
var buildConfigurationImportPath = $"{CurrentDirectoryIdentifier}{ConfigurationPropsPrefix}.{significantBuildConfiguration}{PropsFileExtension}";
buildConfigurationsPropertyGroup.AddProperty(buildConfigurationImportName, buildConfigurationImportPath);
// if BuildConfigurations is not set, then default Configuration to BuildConfiguration
var defaultConfigurationToBuildConfiguration = buildConfigurationsPropertyGroup.AddProperty(ConfigurationProperty, $"$({BuildConfigurationProperty})");
defaultConfigurationToBuildConfiguration.Condition = $"'$({AvailableBuildConfigurationsProperty})' == ''";
var buildConfigurationsIsSet = $"'$({AvailableBuildConfigurationsProperty})' != ''";
// Set error on missing import
var missingImportError = buildConfigurationsPropertyGroup.AddProperty(ErrorMessageProperty,
$"$({ErrorMessageProperty}){ConfigurationProperty} is not set and $({BuildConfigurationProperty}) is not a known value for {BuildConfigurationProperty}.");
missingImportError.Condition = $"{buildConfigurationsIsSet} AND !Exists('$({buildConfigurationImportName})')";
// import props to set ProjectConfiguration
var buildConfigurationImport = buildConfigurationProps.CreateImportElement($"$({buildConfigurationImportName})");
buildConfigurationImport.Condition = $"{buildConfigurationsIsSet} AND {projectConfigurationNotSet} AND Exists('$({buildConfigurationImportName})')";
buildConfigurationProps.AppendChild(buildConfigurationImport);
// iterate over all possible configuration strings
foreach (var buildConfiguration in ConfigurationFactory.GetSignficantConfigurations())
{
CreateBuildConfigurationPropsFile(buildConfiguration);
}
buildConfigurationProps.Save(Path.Combine(PropsFolder, fileName));
}
