* nix-hash: option `--truncate' to truncate the hash to 160 bits. Hmm,
kind of ad hoc ;-)
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@ -6,3 +6,4 @@ files.
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--flat: compute hash of regular file contents, not metadata
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--base32: print hash in base-32 instead of hexadecimal
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--type HASH: use hash algorithm HASH ("md5" (default), "sha1", "sha256")
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--truncate: truncate the hash to 160 bits
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@ -16,12 +16,14 @@ void run(Strings args)
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HashType ht = htMD5;
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bool flat = false;
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bool base32 = false;
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bool truncate = false;
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for (Strings::iterator i = args.begin();
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i != args.end(); i++)
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{
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if (*i == "--flat") flat = true;
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else if (*i == "--base32") base32 = true;
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else if (*i == "--truncate") truncate = true;
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else if (*i == "--type") {
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++i;
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if (i == args.end()) throw UsageError("`--type' requires an argument");
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@ -31,6 +33,7 @@ void run(Strings args)
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}
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else {
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Hash h = flat ? hashFile(ht, *i) : hashPath(ht, *i);
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if (truncate && h.hashSize > 20) h = compressHash(h, 20);
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cout << format("%1%\n") %
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(base32 ? printHash32(h) : printHash(h));
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}
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