// file : libbuild2/config/module.cxx -*- C++ -*- // license : MIT; see accompanying LICENSE file #include <libbuild2/config/module.hxx> #include <libbuild2/scope.hxx> using namespace std; namespace build2 { namespace config { bool module:: save_variable (const variable& var, optional<uint64_t> flags, save_variable_function* save) { const string& n (var.name); // First try to find the module with the name that is the longest // prefix of this variable name. // auto& sm (saved_modules); auto i (sm.find_sup (n)); // If no module matched, then create one based on the variable name. // if (i == sm.end ()) { // Note: with 'config.' prefix. // i = sm.insert (string (n, 0, n.find ('.', 7))).first; } // Don't insert duplicates. The config.import.* vars are particularly // susceptible to duplication. // saved_variables& sv (i->second); auto j (sv.find (var)); if (j != sv.end ()) { assert (!j->flags == !flags && (!flags || *j->flags == *flags)); return false; } sv.push_back (saved_variable {var, flags, save}); return true; } void module:: save_variable (scope& rs, const variable& var, optional<uint64_t> flags) { if (module* m = rs.find_module<module> (module::name)) m->save_variable (var, flags); } void module:: save_environment (scope& rs, const char* var) { if (module* m = rs.find_module<module> (module::name)) m->save_environment (var); } bool module:: save_module (const char* name, int prio) { return saved_modules.insert (string ("config.") += name, prio).second; } void module:: save_module (scope& rs, const char* name, int prio) { if (module* m = rs.find_module<module> (module::name)) m->save_module (name, prio); } bool module:: configure_post (scope& rs, configure_post_hook* h) { if (module* m = rs.find_module<module> (module::name)) { m->configure_post_.push_back (h); return true; } return false; } bool module:: disfigure_pre (scope& rs, disfigure_pre_hook* h) { if (module* m = rs.find_module<module> (module::name)) { m->disfigure_pre_.push_back (h); return true; } return false; } const string module::name ("config"); const uint64_t module::version (1); } }