protected override bool RunInternal(object options)
{
DiffVersionsVerbOptions localOptions = options as DiffVersionsVerbOptions;
Printer.EnableDiagnostics = localOptions.Verbose;
Objects.Version baseVersion = null;
Objects.Version compareVersion = null;
if (localOptions.Versions.Count == 0)
{
Printer.PrintError("Must specify a version or branch to compare to");
return(false);
}
else if (localOptions.Versions.Count == 1)
{
if (Workspace.HasStagedModifications)
{
Printer.PrintError("Cannot compare current workspace while there are staged modifications");
return(false);
}
baseVersion = Workspace.Version;
compareVersion = GetVersionByName(localOptions.Versions[0]);
}
else if (localOptions.Versions.Count == 2)
{
baseVersion = GetVersionByName(localOptions.Versions[0]);
compareVersion = GetVersionByName(localOptions.Versions[1]);
}
else
{
Printer.PrintError("Too many versions specified");
return(false);
}
if (baseVersion == null || compareVersion == null)
{
return(false);
}
CompareVersions(baseVersion, compareVersion, localOptions);
return(true);
}
public void CompareVersions(Objects.Version baseVersion, Objects.Version compareVersion, DiffVersionsVerbOptions localOptions)
{
var baseRecords = Workspace.GetRecords(baseVersion);
var compareRecords = Workspace.GetRecords(compareVersion);
// List additions
var added = new HashSet <Objects.Record>(compareRecords, RecordPathComparer.Instance);
added.ExceptWith(baseRecords);
Report("Add", added.ToList());
// List deletions
var deleted = new HashSet <Objects.Record>(baseRecords, RecordPathComparer.Instance);
deleted.ExceptWith(compareRecords);
Report("Delete", deleted.ToList());
// Check for modifications
var compareLookup = new Dictionary <string, Objects.Record>();
foreach (var record in compareRecords)
{
compareLookup[record.CanonicalName] = record;
}
var modified = new List <Objects.Record>();
foreach (var baseRecord in baseRecords)
{
Objects.Record compareRecord;
if (!compareLookup.TryGetValue(baseRecord.CanonicalName, out compareRecord))
{
continue;
}
if (compareRecord.Fingerprint != baseRecord.Fingerprint)
{
modified.Add(compareRecord);
}
}
Report("Modify", modified);
}
