#include "hash.hh" #include "shared.hh" #include <iostream> using namespace nix; void printHelp() { showManPage("nix-hash"); } void run(Strings args) { HashType ht = htMD5; bool flat = false; bool base32 = false; bool truncate = false; enum { opHash, opTo32, opTo16 } op = opHash; Strings ss; for (Strings::iterator i = args.begin(); i != args.end(); i++) { if (*i == "--flat") flat = true; else if (*i == "--base32") base32 = true; else if (*i == "--truncate") truncate = true; else if (*i == "--type") { ++i; if (i == args.end()) throw UsageError("`--type' requires an argument"); ht = parseHashType(*i); if (ht == htUnknown) throw UsageError(format("unknown hash type `%1%'") % *i); } else if (*i == "--to-base16") op = opTo16; else if (*i == "--to-base32") op = opTo32; else ss.push_back(*i); } if (op == opHash) { foreach (Strings::iterator, i, ss) { Hash h = flat ? hashFile(ht, *i) : hashPath(ht, *i).first; if (truncate && h.hashSize > 20) h = compressHash(h, 20); std::cout << format("%1%\n") % (base32 ? printHash32(h) : printHash(h)); } } else { foreach (Strings::iterator, i, ss) { Hash h = parseHash16or32(ht, *i); std::cout << format("%1%\n") % (op == opTo16 ? printHash(h) : printHash32(h)); } } } string programId = "nix-hash";