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Use FileIngestionMethod for nix hash

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There was an enum there that matched in perfectly.
This commit is contained in:
John Ericson 2020-05-27 23:50:11 -04:00
parent c66441a646
commit 0f96f45061
1 changed files with 19 additions and 11 deletions
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30
src/nix/hash.cc
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@ -9,15 +9,14 @@ using namespace nix;
struct CmdHash : Command struct CmdHash : Command
{ {
enum Mode { mFile, mPath }; FileIngestionMethod mode;
Mode mode;
Base base = SRI; Base base = SRI;
bool truncate = false; bool truncate = false;
HashType ht = htSHA256; HashType ht = htSHA256;
std::vector<std::string> paths; std::vector<std::string> paths;
std::optional<std::string> modulus; std::optional<std::string> modulus;
CmdHash(Mode mode) : mode(mode) CmdHash(FileIngestionMethod mode) : mode(mode)
{ {
mkFlag(0, "sri", "print hash in SRI format", &base, SRI); mkFlag(0, "sri", "print hash in SRI format", &base, SRI);
mkFlag(0, "base64", "print hash in base-64", &base, Base64); mkFlag(0, "base64", "print hash in base-64", &base, Base64);
@ -36,9 +35,14 @@ struct CmdHash : Command
std::string description() override std::string description() override
{ {
return mode == mFile const char* d;
? "print cryptographic hash of a regular file" switch (mode) {
: "print cryptographic hash of the NAR serialisation of a path"; case FileIngestionMethod::Flat:
d = "print cryptographic hash of a regular file";
case FileIngestionMethod::Recursive:
d = "print cryptographic hash of the NAR serialisation of a path";
};
return d;
} }
Category category() override { return catUtility; } Category category() override { return catUtility; }
@ -53,10 +57,14 @@ struct CmdHash : Command
else else
hashSink = std::make_unique<HashSink>(ht); hashSink = std::make_unique<HashSink>(ht);
if (mode == mFile) switch (mode) {
case FileIngestionMethod::Flat:
readFile(path, *hashSink); readFile(path, *hashSink);
else break;
case FileIngestionMethod::Recursive:
dumpPath(path, *hashSink); dumpPath(path, *hashSink);
break;
}
Hash h = hashSink->finish().first; Hash h = hashSink->finish().first;
if (truncate && h.hashSize > 20) h = compressHash(h, 20); if (truncate && h.hashSize > 20) h = compressHash(h, 20);
@ -65,8 +73,8 @@ struct CmdHash : Command
} }
}; };
static RegisterCommand r1("hash-file", [](){ return make_ref<CmdHash>(CmdHash::mFile); }); static RegisterCommand r1("hash-file", [](){ return make_ref<CmdHash>(FileIngestionMethod::Flat); });
static RegisterCommand r2("hash-path", [](){ return make_ref<CmdHash>(CmdHash::mPath); }); static RegisterCommand r2("hash-path", [](){ return make_ref<CmdHash>(FileIngestionMethod::Recursive); });
struct CmdToBase : Command struct CmdToBase : Command
{ {
@ -137,7 +145,7 @@ static int compatNixHash(int argc, char * * argv)
}); });
if (op == opHash) { if (op == opHash) {
CmdHash cmd(flat ? CmdHash::mFile : CmdHash::mPath); CmdHash cmd(flat ? FileIngestionMethod::Flat : FileIngestionMethod::Recursive);
cmd.ht = ht; cmd.ht = ht;
cmd.base = base32 ? Base32 : Base16; cmd.base = base32 ? Base32 : Base16;
cmd.truncate = truncate; cmd.truncate = truncate;