Method applyOverrides

src/CLI2.cpp:236–256

/////////////////////////////////////////////////////////////////////////// Static method.

////////////////////////////////////////////////////////////////////////////////
// Static method.
void CLI2::applyOverrides(int argc, const char** argv) {
  auto& context = Context::getContext();
  auto last = std::find(argv, argv + argc, std::string("--"));
  auto is_override = [](const std::string& s) { return s.compare(0, 3, "rc.") == 0; };
  auto get_sep = [&](const std::string& s) {
    if (is_override(s)) return s.find_first_of(":=", 3);
    return std::string::npos;
  };
  auto override_settings = [&](std::string raw) {
    auto sep = get_sep(raw);
    if (sep == std::string::npos) return;
    std::string name = raw.substr(3, sep - 3);
    std::string value = raw.substr(sep + 1);
    context.config.set(name, value);
  };
  auto display_overrides = [&](std::string raw) {
    if (is_override(raw)) context.footnote(format("Configuration override {1}", raw));
  };
  std::for_each(argv, last, override_settings);
  if (context.verbose("override")) std::for_each(argv, last, display_overrides);
}

////////////////////////////////////////////////////////////////////////////////
void CLI2::alias(const std::string& name, const std::string& value) { _aliases[name] = value; }