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#include "ceph_releases.h"
#include <ostream>
#include "ceph_ver.h"
std::ostream& operator<<(std::ostream& os, const ceph_release_t r)
{
return os << ceph_release_name(static_cast<int>(r));
}
ceph_release_t ceph_release()
{
return ceph_release_t{CEPH_RELEASE};
}
ceph_release_t ceph_release_from_name(std::string_view s)
{
ceph_release_t r = ceph_release_t::max;
while (--r != ceph_release_t::unknown) {
if (s == to_string(r)) {
return r;
}
}
return ceph_release_t::unknown;
}
bool can_upgrade_from(ceph_release_t from_release,
std::string_view from_release_name,
std::ostream& err)
{
if (from_release == ceph_release_t::unknown) {
// cannot tell, but i am optimistic
return true;
}
const ceph_release_t cutoff{static_cast<uint8_t>(static_cast<uint8_t>(from_release) + 2)};
const auto to_release = ceph_release();
if (cutoff < to_release) {
err << "recorded " << from_release_name << " "
<< to_integer<int>(from_release) << " (" << from_release << ") "
<< "is more than two releases older than installed "
<< to_integer<int>(to_release) << " (" << to_release << "); "
<< "you can only upgrade 2 releases at a time\n"
<< "you should first upgrade to ";
auto release = from_release;
while (++release <= cutoff) {
err << to_integer<int>(release) << " (" << release << ")";
if (release < cutoff) {
err << " or ";
} else {
err << "\n";
}
}
return false;
} else {
return true;
}
}
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