shell_quote.hpp

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#pragma once
 
#include <string>
 
namespace BastionGuard::wizard {
 
// Quote a single argument for POSIX-compatible shells. In particular, a
// single quote inside the argument must not terminate the quoted string.
// Prefer bg_process::run(argv) where a shell is not actually required.
inline std::string shell_quote(const std::string& argument) {
    std::string quoted;
    quoted.reserve(argument.size() + 2);
    quoted.push_back('\'');
    for (const char ch : argument) {
        if (ch == '\'') quoted += "'\"'\"'";
        else quoted.push_back(ch);
    }
    quoted.push_back('\'');
    return quoted;
}
 
} // namespace BastionGuard::wizard