internal void ReadExistingContainerSigningCache()
{
_log.LogMessage("Loading existing files from cache");
foreach (var file in Directory.EnumerateFiles(_pathToContainerUnpackingDirectory, "*.*", SearchOption.AllDirectories))
{
string cacheRelative = file.Replace(_pathToContainerUnpackingDirectory + Path.DirectorySeparatorChar, "");
int indexOfHash = cacheRelative.IndexOf(Path.DirectorySeparatorChar);
if (indexOfHash <= 0)
{
continue;
}
// When reading from an existing cache use the already computed hash from the directory
// structure instead of computing it from the file because things like signing
// might have changed the hash but we want to still use the same hash of the unsigned
// file that originally built the cache.
string stringHash = cacheRelative.Substring(0, indexOfHash);
try
{
ImmutableArray <byte> contentHash = ContentUtil.StringToHash(stringHash);
}
catch {
_log.LogMessage($"Failed to parse the content hash from path '{file}' so skipping it.");
continue;
}
TrackFile(file, ContentUtil.StringToHash(stringHash), false);
}
_log.LogMessage("Done loading existing files from cache");
}
internal void ReadExistingContainerSigningCache()
{
_log.LogMessage("Loading existing files from cache");
foreach (var file in Directory.EnumerateFiles(_pathToContainerUnpackingDirectory, "*.*", SearchOption.AllDirectories))
{
string cacheRelative = file.Replace(_pathToContainerUnpackingDirectory + Path.DirectorySeparatorChar, "");
int indexOfHash = cacheRelative.IndexOf(Path.DirectorySeparatorChar);
if (indexOfHash <= 0)
{
continue;
}
// When reading from an existing cache use the already computed hash from the directory
// structure instead of computing it from the file because things like signing
// might have changed the hash but we want to still use the same hash of the unsigned
// file that originally built the cache.
string stringHash = cacheRelative.Substring(0, indexOfHash);
ImmutableArray <byte> contentHash;
try
{
contentHash = ContentUtil.StringToHash(stringHash);
}
catch
{
_log.LogMessage($"Failed to parse the content hash from path '{file}' so skipping it.");
continue;
}
// if the content of the file doesn't match the hash in file path than the file has changed
// which indicates that it was signed so we need to ensure we repack the binary with the signed version
string actualFileHash = ContentUtil.HashToString(ContentUtil.GetContentHash(file));
bool forceRepack = stringHash != actualFileHash;
_hashToCollisionIdMap.TryGetValue(new SignedFileContentKey(contentHash, Path.GetFileName(file)), out string collisionPriorityId);
TrackFile(file, collisionPriorityId, contentHash, false, forceRepack, containerPath: file);
}
_log.LogMessage("Done loading existing files from cache");
}
