If a .drv cannot be parsed, show its path
Otherwise you just get ‘expected string `Derive(['’ which isn't very helpful.
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@ -67,7 +67,7 @@ static void prim_import(EvalState & state, const Pos & pos, Value * * args, Valu
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}
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if (isStorePath(path) && store->isValidPath(path) && isDerivation(path)) {
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Derivation drv = parseDerivation(readFile(path));
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Derivation drv = readDerivation(path);
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Value & w = *state.allocValue();
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state.mkAttrs(w, 1 + drv.outputs.size());
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mkString(*state.allocAttr(w, state.sDrvPath), path, singleton<PathSet>("=" + path));
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@ -48,7 +48,7 @@ static Path parsePath(std::istream & str)
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{
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string s = parseString(str);
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if (s.size() == 0 || s[0] != '/')
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throw Error(format("bad path `%1%' in derivation") % s);
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throw FormatError(format("bad path `%1%' in derivation") % s);
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return s;
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}
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@ -62,7 +62,7 @@ static StringSet parseStrings(std::istream & str, bool arePaths)
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}
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Derivation parseDerivation(const string & s)
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static Derivation parseDerivation(const string & s)
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{
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Derivation drv;
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std::istringstream str(s);
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@ -112,6 +112,16 @@ Derivation parseDerivation(const string & s)
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}
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Derivation readDerivation(const Path & drvPath)
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{
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try {
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return parseDerivation(readFile(drvPath));
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} catch (FormatError & e) {
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throw Error(format("error parsing derivation `%1%': %2%") % drvPath % e.msg());
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}
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}
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static void printString(string & res, const string & s)
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{
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res += '"';
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@ -240,7 +250,7 @@ Hash hashDerivationModulo(StoreAPI & store, Derivation drv)
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Hash h = drvHashes[i->first];
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if (h.type == htUnknown) {
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assert(store.isValidPath(i->first));
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Derivation drv2 = parseDerivation(readFile(i->first));
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Derivation drv2 = readDerivation(i->first);
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h = hashDerivationModulo(store, drv2);
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drvHashes[i->first] = h;
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}
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@ -59,8 +59,8 @@ class StoreAPI;
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Path writeDerivation(StoreAPI & store,
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const Derivation & drv, const string & name, bool repair = false);
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/* Parse a derivation. */
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Derivation parseDerivation(const string & s);
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/* Read a derivation from a file. */
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Derivation readDerivation(const Path & drvPath);
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/* Print a derivation. */
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string unparseDerivation(const Derivation & drv);
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@ -661,7 +661,7 @@ unsigned long long LocalStore::addValidPath(const ValidPathInfo & info, bool che
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efficiently query whether a path is an output of some
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derivation. */
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if (isDerivation(info.path)) {
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Derivation drv = parseDerivation(readFile(info.path));
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Derivation drv = readDerivation(info.path);
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/* Verify that the output paths in the derivation are correct
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(i.e., follow the scheme for computing output paths from
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@ -1290,7 +1290,7 @@ void LocalStore::registerValidPaths(const ValidPathInfos & infos)
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if (isDerivation(i->path)) {
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// FIXME: inefficient; we already loaded the
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// derivation in addValidPath().
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Derivation drv = parseDerivation(readFile(i->path));
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Derivation drv = readDerivation(i->path);
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checkDerivationOutputs(i->path, drv);
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}
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@ -11,7 +11,7 @@ Derivation derivationFromPath(StoreAPI & store, const Path & drvPath)
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{
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assertStorePath(drvPath);
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store.ensurePath(drvPath);
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return parseDerivation(readFile(drvPath));
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return readDerivation(drvPath);
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}
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@ -1041,7 +1041,7 @@ void expect(std::istream & str, const string & s)
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char s2[s.size()];
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str.read(s2, s.size());
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if (string(s2, s.size()) != s)
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throw Error(format("expected string `%1%'") % s);
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throw FormatError(format("expected string `%1%'") % s);
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}
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@ -326,6 +326,8 @@ bool hasSuffix(const string & s, const string & suffix);
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/* Read string `s' from stream `str'. */
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void expect(std::istream & str, const string & s);
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MakeError(FormatError, Error)
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/* Read a C-style string from stream `str'. */
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string parseString(std::istream & str);
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