/// <summary>
/// Method that cna be override to control how an individual <see cref="SnippetGroup"/> is rendered.
/// </summary>
public void AppendGroup(SnippetGroup snippetGroup, TextWriter writer)
{
Guard.AgainstNull(snippetGroup, "snippetGroup");
Guard.AgainstNull(writer, "writer");
foreach (var versionGroup in snippetGroup)
{
AppendVersionGroup(writer, versionGroup,snippetGroup.Language);
}
}
static bool TryGetGroup(string key, List<ReadSnippet> readSnippets, out SnippetGroup snippetGroup, out string error)
{
var requiredLanguage = readSnippets.Select(x => x.Language).First();
if (readSnippets.Any(x => x.Language != requiredLanguage))
{
error = $"All languages of a give key must be equivalent. Key='{key}'.";
snippetGroup = null;
return false;
}
foreach (var snippet in readSnippets)
{
var snippetVersion = snippet.Version;
var snippets = readSnippets.Where(x => x.Version.Equals(snippetVersion))
.ToList();
if (snippets.Count > 1)
{
var files = string.Join("\r\n", snippets.Select(x => x.FileLocation));
error = $"Duplicate key detected. Key='{key}'. Version='{snippets.First().Version.PrettyPrint()}'. Files=\r\n{files}";
snippetGroup = null;
return false;
}
}
var containsAllVersionRanges = readSnippets.Any(x=>x.Version.Equals(VersionRange.All));
var containsNonAllVersionRanges = readSnippets.Any(x=>!x.Version.Equals(VersionRange.All));
if (containsAllVersionRanges && containsNonAllVersionRanges)
{
var files = string.Join("\r\n", readSnippets.Select(x => x.FileLocation));
error = $"Cannot mix 'all' versions and specific versions. Key='{key}'. Files=\r\n{files}";
snippetGroup = null;
return false;
}
var keyGroup = ProcessKeyGroup(readSnippets)
.OrderByDescending(x => x.Version.VersionForCompare());
snippetGroup = new SnippetGroup(
key: key,
language: requiredLanguage,
versions: keyGroup);
error = null;
return true;
}
