int builtin_alias(Environment &env, const std::vector<std::string> &tokens, const fdmask &fds) {
// alias -> lists all aliases
// alias name -> list single alias
// alias name parms... -> add a new alias.
if (tokens.size() == 1) {
for (const auto &p : env.aliases()) {
fdprintf(stdout, "Alias %s %s\n", quote(p.first).c_str(), quote(p.second).c_str());
}
return 0;
}
std::string name = tokens[1];
if (tokens.size() == 2) {
const auto as = env.find_alias(name);
if (as.empty()) {
fdprintf(stderr, "### Alias - No alias exists for %s\n", quote(name).c_str());
return 1;
}
fdprintf(stdout, "Alias %s %s\n", quote(name).c_str(), quote(as).c_str());
return 0;
}
std::string as;
for (const auto &s : make_offset_range(tokens, 2)) {
as += s;
as.push_back(' ');
}
as.pop_back();
// add/remove it to the alias table...
if (as.empty()) {
env.remove_alias(name);
}
else {
env.add_alias(std::move(name), std::move(as));
}
return 0;
}
