Sha256: a46bcd50c2dd28a361bdf1f9dff741f0b53685dc92fdf6091dddf79c96e21df2
Contents?: true
Size: 1.1 KB
Versions: 16
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Stored size: 1.1 KB
Contents
#include <leatherman/util/scoped_env.hpp>
#include <leatherman/util/environment.hpp>
using namespace std;
namespace leatherman { namespace util {
scoped_env::scoped_env(string var, string const& val) : scoped_resource()
{
string oldval;
bool was_set = environment::get(var, oldval);
environment::set(var, val);
_resource = make_tuple(move(var), was_set ? boost::optional<std::string>(move(oldval)) : boost::none);
_deleter = scoped_env::restore;
}
scoped_env::scoped_env(string var) : scoped_resource()
{
string oldval;
bool was_set = environment::get(var, oldval);
environment::clear(var);
_resource = make_tuple(move(var), was_set ? boost::optional<std::string>(move(oldval)) : boost::none);
_deleter = scoped_env::restore;
}
void scoped_env::restore(tuple<string, boost::optional<std::string>> & old)
{
if (get<1>(old)) {
environment::set(get<0>(old), *get<1>(old));
} else {
environment::clear(get<0>(old));
}
}
}} // namespace leatherman::util
Version data entries
16 entries across 16 versions & 2 rubygems