int CGitHeadFileList::ReadHeadHash(CString gitdir)
{
CString HeadFile = gitdir;
HeadFile += _T("\\.git\\HEAD");
int ret = 0;
m_Gitdir = gitdir;
m_HeadFile = HeadFile;
if( g_Git.GetFileModifyTime(m_HeadFile, &m_LastModifyTimeHead))
return -1;
try
{
do
{
CAutoFile hfile = CreateFile(HeadFile,
GENERIC_READ,
FILE_SHARE_READ|FILE_SHARE_DELETE|FILE_SHARE_WRITE,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL);
if (!hfile)
{
ret = -1;
break;
}
DWORD size = 0,filesize = 0;
unsigned char buffer[40] ;
ReadFile(hfile, buffer, 4, &size, NULL);
if (size != 4)
{
ret = -1;
break;
}
buffer[4]=0;
if (strcmp((const char*)buffer,"ref:") == 0)
{
filesize = GetFileSize(hfile, NULL);
unsigned char *p = (unsigned char*)malloc(filesize -4);
ReadFile(hfile, p, filesize - 4, &size, NULL);
m_HeadRefFile.Empty();
g_Git.StringAppend(&this->m_HeadRefFile, p, CP_ACP, filesize - 4);
CString ref = this->m_HeadRefFile;
ref = ref.Trim();
int start = 0;
ref = ref.Tokenize(_T("\n"), start);
free(p);
m_HeadRefFile=gitdir+_T("\\.git\\") + m_HeadRefFile.Trim();
m_HeadRefFile.Replace(_T('/'),_T('\\'));
__int64 time;
if (g_Git.GetFileModifyTime(m_HeadRefFile, &time, NULL))
{
m_HeadRefFile.Empty();
if (GetPackRef(gitdir))
{
ret = -1;
break;
}
if (this->m_PackRefMap.find(ref) == m_PackRefMap.end())
{
ret = -1;
break;
}
this ->m_Head = m_PackRefMap[ref];
ret = 0;
break;
}
CAutoFile href = CreateFile(m_HeadRefFile,
GENERIC_READ,
FILE_SHARE_READ|FILE_SHARE_DELETE|FILE_SHARE_WRITE,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL);
if (!href)
{
m_HeadRefFile.Empty();
if (GetPackRef(gitdir))
{
ret = -1;
break;
}
if (this->m_PackRefMap.find(ref) == m_PackRefMap.end())
{
ret = -1;
break;
}
this ->m_Head = m_PackRefMap[ref];
ret = 0;
break;
}
ReadFile(href, buffer, 40, &size, NULL);
if (size != 40)
{
ret = -1;
break;
}
this->m_Head.ConvertFromStrA((char*)buffer);
this->m_LastModifyTimeRef = time;
}
else
{
ReadFile(hfile, buffer + 4, 40 - 4, &size, NULL);
if(size != 36)
{
ret = -1;
break;
}
m_HeadRefFile.Empty();
this->m_Head.ConvertFromStrA((char*)buffer);
}
} while(0);
}
catch(...)
{
ret = -1;
}
return ret;
}
int CGitHeadFileList::ReadHeadHash(const CString& gitdir)
{
CAutoWriteLock lock(m_SharedMutex);
m_Gitdir = g_AdminDirMap.GetAdminDir(gitdir);
m_HeadFile = m_Gitdir;
m_HeadFile += _T("HEAD");
if( CGit::GetFileModifyTime(m_HeadFile, &m_LastModifyTimeHead))
return -1;
CAutoFile hfile = CreateFile(m_HeadFile,
GENERIC_READ,
FILE_SHARE_READ | FILE_SHARE_DELETE | FILE_SHARE_WRITE,
nullptr,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
nullptr);
if (!hfile)
return -1;
DWORD size = 0;
unsigned char buffer[40];
ReadFile(hfile, buffer, 4, &size, nullptr);
if (size != 4)
return -1;
buffer[4] = 0;
if (strcmp((const char*)buffer, "ref:") == 0)
{
m_HeadRefFile.Empty();
DWORD filesize = GetFileSize(hfile, nullptr);
if (filesize < 5)
return -1;
unsigned char *p = (unsigned char*)malloc(filesize - 4);
if (!p)
return -1;
ReadFile(hfile, p, filesize - 4, &size, nullptr);
CGit::StringAppend(&m_HeadRefFile, p, CP_UTF8, filesize - 4);
free(p);
CString ref = m_HeadRefFile.Trim();
int start = 0;
ref = ref.Tokenize(_T("\n"), start);
m_HeadRefFile = m_Gitdir + m_HeadRefFile;
m_HeadRefFile.Replace(_T('/'), _T('\\'));
__int64 time;
if (CGit::GetFileModifyTime(m_HeadRefFile, &time, nullptr))
{
m_HeadRefFile.Empty();
if (GetPackRef(gitdir))
return -1;
if (m_PackRefMap.find(ref) == m_PackRefMap.end())
return -1;
m_Head = m_PackRefMap[ref];
return 0;
}
CAutoFile href = CreateFile(m_HeadRefFile,
GENERIC_READ,
FILE_SHARE_READ | FILE_SHARE_DELETE | FILE_SHARE_WRITE,
nullptr,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
nullptr);
if (!href)
{
m_HeadRefFile.Empty();
if (GetPackRef(gitdir))
return -1;
if (m_PackRefMap.find(ref) == m_PackRefMap.end())
return -1;
m_Head = m_PackRefMap[ref];
return 0;
}
ReadFile(href, buffer, 40, &size, nullptr);
if (size != 40)
return -1;
m_Head.ConvertFromStrA((char*)buffer);
m_LastModifyTimeRef = time;
return 0;
}
ReadFile(hfile, buffer + 4, 40 - 4, &size, nullptr);
if (size != 36)
return -1;
m_HeadRefFile.Empty();
m_Head.ConvertFromStrA((char*)buffer);
return 0;
}
