public void ScanFile(IProgressStatus monitor, string file, AddinScanFolderInfo folderInfo, AddinScanResult scanResult)
{
if (monitor.VerboseLog)
{
monitor.Log("Scanning file: " + file);
}
string scannedAddinId = null;
bool scannedIsRoot = false;
bool scanSuccessful = false;
try {
string ext = Path.GetExtension(file);
AddinDescription config = null;
if (ext == ".dll" || ext == ".exe")
{
scanSuccessful = ScanAssembly(monitor, file, scanResult, out config);
}
else
{
scanSuccessful = ScanConfigAssemblies(monitor, file, scanResult, out config);
}
if (config != null)
{
AddinFileInfo fi = folderInfo.GetAddinFileInfo(file);
// If version is not specified, make up one
if (config.Version.Length == 0)
{
config.Version = "0.0.0.0";
}
if (config.LocalId.Length == 0)
{
// Generate an internal id for this add-in
config.LocalId = database.GetUniqueAddinId(file, (fi != null ? fi.AddinId : null), config.Namespace, config.Version);
config.HasUserId = false;
}
// Check errors in the description
StringCollection errors = config.Verify();
if (database.IsGlobalRegistry && config.AddinId.IndexOf('.') == -1)
{
errors.Add("Add-ins registered in the global registry must have a namespace.");
}
if (errors.Count > 0)
{
scanSuccessful = false;
monitor.ReportError("Errors found in add-in '" + file + ":", null);
foreach (string err in errors)
{
monitor.ReportError(err, null);
}
}
// Make sure all extensions sets are initialized with the correct add-in id
config.SetExtensionsAddinId(config.AddinId);
scanResult.ChangesFound = true;
// If the add-in already existed, try to reuse the relation data it had.
// Also, the dependencies of the old add-in need to be re-analized
AddinDescription existingDescription = null;
bool res;
if (config.IsRoot)
{
res = database.GetHostDescription(monitor, config.AddinId, config.AddinFile, out existingDescription);
}
else
{
res = database.GetAddinDescription(monitor, config.AddinId, out existingDescription);
}
// If we can't get information about the old assembly, just regenerate all relation data
if (!res)
{
scanResult.RegenerateRelationData = true;
}
string replaceFileName = null;
if (existingDescription != null)
{
// Reuse old relation data
config.MergeExternalData(existingDescription);
Util.AddDependencies(existingDescription, scanResult);
replaceFileName = existingDescription.FileName;
}
// If the scanned file results in an add-in version different from the one obtained from
// previous scans, the old add-in needs to be uninstalled.
if (fi != null && fi.AddinId != null && fi.AddinId != config.AddinId)
{
if (fi.IsRoot)
{
database.UninstallRootAddin(monitor, fi.AddinId, file, scanResult);
}
else
{
database.UninstallAddin(monitor, fi.AddinId, scanResult);
}
// If the add-in version has changed, regenerate everything again since old data can't be reused
if (Addin.GetIdName(fi.AddinId) == Addin.GetIdName(config.AddinId))
{
scanResult.RegenerateRelationData = true;
}
}
// If a description could be generated, save it now (if the scan was successful)
if (scanSuccessful)
{
if (database.SaveDescription(monitor, config, replaceFileName))
{
// The new dependencies also have to be updated
Util.AddDependencies(config, scanResult);
scanResult.AddAddinToUpdateRelations(config.AddinId);
scannedAddinId = config.AddinId;
scannedIsRoot = config.IsRoot;
return;
}
}
}
}
catch (Exception ex) {
monitor.ReportError("Unexpected error while scanning file: " + file, ex);
}
finally {
folderInfo.SetLastScanTime(file, scannedAddinId, scannedIsRoot, File.GetLastWriteTime(file), !scanSuccessful);
}
}