wxString Instance::ReadVersionFile()
{
if (!GetVersionFile().FileExists())
return _("");
// Open the file for reading
wxFSFile *vFile = wxFileSystem().OpenFile(GetVersionFile().GetFullPath(), wxFS_READ);
wxString retVal;
wxStringOutputStream outStream(&retVal);
outStream.Write(*vFile->GetStream());
wxDELETE(vFile);
return retVal;
}
int64_t Instance::ReadVersionFile()
{
int64_t number = -1;
if (!GetVersionFile().FileExists()) return number;
// Open the file for reading
wxFFileInputStream input( GetVersionFile().GetFullPath() );
if(input.IsOk())
{
auto len = input.GetLength();
char * buf = new char[len];
input.Read(buf, len);
std::istringstream in(buf);
in >> number;
delete[] buf;
}
void Instance::WriteVersionFile(const wxString &contents)
{
if (!GetBinDir().DirExists())
GetBinDir().Mkdir();
wxFile vFile;
if (!vFile.Create(GetVersionFile().GetFullPath(), true))
return;
wxFileOutputStream outStream(vFile);
wxStringInputStream inStream(contents);
outStream.Write(inStream);
}
nsresult
ProcessUpdates(nsIFile *greDir, nsIFile *appDir, nsIFile *updRootDir,
int argc, char **argv, const char *&appVersion)
{
nsresult rv;
nsCOMPtr<nsIFile> updatesDir;
rv = updRootDir->Clone(getter_AddRefs(updatesDir));
if (NS_FAILED(rv))
return rv;
rv = updatesDir->AppendNative(NS_LITERAL_CSTRING("updates"));
if (NS_FAILED(rv))
return rv;
rv = updatesDir->AppendNative(NS_LITERAL_CSTRING("0"));
if (NS_FAILED(rv))
return rv;
PRBool exists;
rv = updatesDir->Exists(&exists);
if (NS_FAILED(rv) || !exists)
return rv;
nsCOMPtr<nsILocalFile> statusFile;
if (GetStatusFile(updatesDir, statusFile) && IsPending(statusFile)) {
nsCOMPtr<nsILocalFile> versionFile;
// Remove the update if the update application version file doesn't exist
// or if the update's application version is less than the current
// application version.
if (!GetVersionFile(updatesDir, versionFile) ||
IsOlderVersion(versionFile, appVersion)) {
updatesDir->Remove(PR_TRUE);
} else {
ApplyUpdate(greDir, updatesDir, statusFile, appDir, argc, argv);
}
}
return NS_OK;
}
