IIndexEntry*
Stream :: findTimeStampEntryInIndex(int64_t wantedTimeStamp, int32_t flags)
{
int32_t index = findTimeStampPositionInIndex(wantedTimeStamp, flags);
// getIndexEntry will check for a negative index and return null if so
return getIndexEntry(index);
}
void Plugin::addFile(const std::string filepath)
{
logger().debug("Adding file");
// Check if file exists and it's not a directory
File file(filepath);
if (!file.exists())
{
std::cout << "Failed to add file " << filepath.c_str() << ": file does not exist" << std::endl;
return;
}
if (file.isDirectory())
{
std::cout << "Failed to add file " << filepath.c_str() << ": file is a directory" << std::endl;
return;
}
File index(Plugin::GIT_BIN_INDEX);
if (!index.exists())
{
index.createFile();
}
// Find this file in the index
if (isFileIndexed(filepath) && file.isLink())
{
logger().debug("File already in cache");
auto entry = getIndexEntry(filepath);
if (entry == nullptr)
{
std::cout << "Failed to retrieve index meta data for " << filepath << std::endl;
return;
}
// Not fresh. Update existing index file
// Remove file from index before recalculating everything
for (auto it = _index.begin(); it != _index.end();)
{
if ((*it).filepath == filepath)
{
// Remove link
std::cout << "Replacing link with original file" << std::endl;
file.remove();
Process::Args restoreArgs;
std::string restorePath(Plugin::GIT_CACHE_DIR);
restorePath.append("/wf/");
restorePath.append((*it).uuid);
restoreArgs.push_back(restorePath);
restoreArgs.push_back(filepath);
Process::launch("mv", restoreArgs, 0, 0, 0);
it = _index.erase(it);
} else {
it++;
}
}
}
// Add new file into index
UUIDGenerator gen;
IndexEntry e;
e.filepath = filepath;
e.md5 = getFileMd5(filepath);
e.uuid = gen.createRandom().toString();
do
{
e.uuid = gen.createRandom().toString();
}
while (!isUuidUnique(e.uuid));
_index.push_back(e);
writeIndex();
// Place two copies of this file into cache
// One copy is original file and don't tracked in any way
// Second copy is a file we will create link to
Process::Args args;
args.push_back(filepath);
std::string origPath(Plugin::GIT_CACHE_DIR);
origPath.append("/of/").append(e.uuid);
args.push_back(origPath);
Poco::ProcessHandle copyProcess = Process::launch("cp", args, 0, 0, 0);
if (copyProcess.wait() != 0)
{
std::cout << "Failed to move file into git-bin cache" << std::endl;
return;
}
// Second stage copy
args.clear();
args.push_back(filepath);
std::string workPath(Plugin::GIT_CACHE_DIR);
workPath.append("/wf/").append(e.uuid);
args.push_back(workPath);
copyProcess = Process::launch("mv", args, 0, 0, 0);
if (copyProcess.wait() != 0)
{
std::cout << "Failed to move file on stage 2" << std::endl;
return;
}
// Make a link
args.clear();
args.push_back("-s");
Path rel(filepath);
std::string relPath;
for (int i = 0; i < rel.depth(); i++)
{
relPath.append("../");
}
relPath.append(workPath);
args.push_back(relPath);
args.push_back(filepath);
Poco::ProcessHandle linkProcess = Process::launch("ln", args, 0, 0, 0);
if (linkProcess.wait() != 0)
{
std::cout << "Failed to create link to file" << std::endl;
return;
}
args.clear();
args.push_back("add");
args.push_back(filepath);
Poco::ProcessHandle gitAddProcess = Process::launch("git", args, 0, 0, 0);
if (gitAddProcess.wait() != 0)
{
std::cout << "Failed to add file into git index (git add)" << std::endl;
return;
}
}
