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-rw-r--r--src/libexpr/primops.cc172
1 files changed, 87 insertions, 85 deletions
diff --git a/src/libexpr/primops.cc b/src/libexpr/primops.cc
index 3830d8107..a98cadc80 100644
--- a/src/libexpr/primops.cc
+++ b/src/libexpr/primops.cc
@@ -30,18 +30,6 @@ namespace nix {
*************************************************************/
-/* Decode a context string ‘!<name>!<path>’ into a pair <path,
- name>. */
-std::pair<string, string> decodeContext(const string & s)
-{
- if (s.at(0) == '!') {
- size_t index = s.find("!", 1);
- return std::pair<string, string>(string(s, index + 1), string(s, 1, index - 1));
- } else
- return std::pair<string, string>(s.at(0) == '/' ? s : string(s, 1), "");
-}
-
-
InvalidPathError::InvalidPathError(const Path & path) :
EvalError("path '%s' is not valid", path), path(path) {}
@@ -64,7 +52,7 @@ void EvalState::realiseContext(const PathSet & context)
DerivationOutputs::iterator i = drv.outputs.find(outputName);
if (i == drv.outputs.end())
throw Error("derivation '%s' does not have an output named '%s'", ctxS, outputName);
- allowedPaths->insert(store->printStorePath(i->second.path));
+ allowedPaths->insert(store->printStorePath(i->second.path(*store, drv.name)));
}
}
}
@@ -77,7 +65,7 @@ void EvalState::realiseContext(const PathSet & context)
/* For performance, prefetch all substitute info. */
StorePathSet willBuild, willSubstitute, unknown;
- unsigned long long downloadSize, narSize;
+ uint64_t downloadSize, narSize;
store->queryMissing(drvs, willBuild, willSubstitute, unknown, downloadSize, narSize);
store->buildPaths(drvs);
@@ -96,15 +84,24 @@ static void prim_scopedImport(EvalState & state, const Pos & pos, Value * * args
} catch (InvalidPathError & e) {
throw EvalError({
.hint = hintfmt("cannot import '%1%', since path '%2%' is not valid", path, e.path),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
}
Path realPath = state.checkSourcePath(state.toRealPath(path, context));
// FIXME
- if (state.store->isStorePath(path) && state.store->isValidPath(state.store->parseStorePath(path)) && isDerivation(path)) {
- Derivation drv = readDerivation(*state.store, realPath);
+ auto isValidDerivationInStore = [&]() -> std::optional<StorePath> {
+ if (!state.store->isStorePath(path))
+ return std::nullopt;
+ auto storePath = state.store->parseStorePath(path);
+ if (!(state.store->isValidPath(storePath) && isDerivation(path)))
+ return std::nullopt;
+ return storePath;
+ };
+ if (auto optStorePath = isValidDerivationInStore()) {
+ auto storePath = *optStorePath;
+ Derivation drv = readDerivation(*state.store, realPath, Derivation::nameFromPath(storePath));
Value & w = *state.allocValue();
state.mkAttrs(w, 3 + drv.outputs.size());
Value * v2 = state.allocAttr(w, state.sDrvPath);
@@ -118,7 +115,7 @@ static void prim_scopedImport(EvalState & state, const Pos & pos, Value * * args
for (const auto & o : drv.outputs) {
v2 = state.allocAttr(w, state.symbols.create(o.first));
- mkString(*v2, state.store->printStorePath(o.second.path), {"!" + o.first + "!" + path});
+ mkString(*v2, state.store->printStorePath(o.second.path(*state.store, drv.name)), {"!" + o.first + "!" + path});
outputsVal->listElems()[outputs_index] = state.allocValue();
mkString(*(outputsVal->listElems()[outputs_index++]), o.first);
}
@@ -177,7 +174,7 @@ void prim_importNative(EvalState & state, const Pos & pos, Value * * args, Value
.hint = hintfmt(
"cannot import '%1%', since path '%2%' is not valid",
path, e.path),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
}
@@ -215,7 +212,7 @@ void prim_exec(EvalState & state, const Pos & pos, Value * * args, Value & v)
if (count == 0) {
throw EvalError({
.hint = hintfmt("at least one argument to 'exec' required"),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
}
PathSet context;
@@ -230,7 +227,7 @@ void prim_exec(EvalState & state, const Pos & pos, Value * * args, Value & v)
throw EvalError({
.hint = hintfmt("cannot execute '%1%', since path '%2%' is not valid",
program, e.path),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
}
@@ -239,13 +236,13 @@ void prim_exec(EvalState & state, const Pos & pos, Value * * args, Value & v)
try {
parsed = state.parseExprFromString(output, pos.file);
} catch (Error & e) {
- e.addPrefix(fmt("While parsing the output from '%1%', at %2%\n", program, pos));
+ e.addTrace(pos, "While parsing the output from '%1%'", program);
throw;
}
try {
state.eval(parsed, v);
} catch (Error & e) {
- e.addPrefix(fmt("While evaluating the output from '%1%', at %2%\n", program, pos));
+ e.addTrace(pos, "While evaluating the output from '%1%'", program);
throw;
}
}
@@ -385,7 +382,7 @@ static void prim_genericClosure(EvalState & state, const Pos & pos, Value * * ar
if (startSet == args[0]->attrs->end())
throw EvalError({
.hint = hintfmt("attribute 'startSet' required"),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
state.forceList(*startSet->value, pos);
@@ -399,7 +396,7 @@ static void prim_genericClosure(EvalState & state, const Pos & pos, Value * * ar
if (op == args[0]->attrs->end())
throw EvalError({
.hint = hintfmt("attribute 'operator' required"),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
state.forceValue(*op->value, pos);
@@ -421,7 +418,7 @@ static void prim_genericClosure(EvalState & state, const Pos & pos, Value * * ar
if (key == e->attrs->end())
throw EvalError({
.hint = hintfmt("attribute 'key' required"),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
state.forceValue(*key->value, pos);
@@ -471,7 +468,7 @@ static void prim_addErrorContext(EvalState & state, const Pos & pos, Value * * a
v = *args[1];
} catch (Error & e) {
PathSet context;
- e.addPrefix(format("%1%\n") % state.coerceToString(pos, *args[0], context));
+ e.addTrace(std::nullopt, state.coerceToString(pos, *args[0], context));
throw;
}
}
@@ -556,14 +553,14 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
if (attr == args[0]->attrs->end())
throw EvalError({
.hint = hintfmt("required attribute 'name' missing"),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
string drvName;
Pos & posDrvName(*attr->pos);
try {
drvName = state.forceStringNoCtx(*attr->value, pos);
} catch (Error & e) {
- e.addPrefix(fmt("while evaluating the derivation attribute 'name' at %1%:\n", posDrvName));
+ e.addTrace(posDrvName, "while evaluating the derivation attribute 'name'");
throw;
}
@@ -582,6 +579,7 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
/* Build the derivation expression by processing the attributes. */
Derivation drv;
+ drv.name = drvName;
PathSet context;
@@ -603,7 +601,7 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
else
throw EvalError({
.hint = hintfmt("invalid value '%s' for 'outputHashMode' attribute", s),
- .nixCode = NixCode { .errPos = posDrvName }
+ .errPos = posDrvName
});
};
@@ -613,7 +611,7 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
if (outputs.find(j) != outputs.end())
throw EvalError({
.hint = hintfmt("duplicate derivation output '%1%'", j),
- .nixCode = NixCode { .errPos = posDrvName }
+ .errPos = posDrvName
});
/* !!! Check whether j is a valid attribute
name. */
@@ -623,14 +621,14 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
if (j == "drv")
throw EvalError({
.hint = hintfmt("invalid derivation output name 'drv'" ),
- .nixCode = NixCode { .errPos = posDrvName }
+ .errPos = posDrvName
});
outputs.insert(j);
}
if (outputs.empty())
throw EvalError({
.hint = hintfmt("derivation cannot have an empty set of outputs"),
- .nixCode = NixCode { .errPos = posDrvName }
+ .errPos = posDrvName
});
};
@@ -696,8 +694,9 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
}
} catch (Error & e) {
- e.addPrefix(format("while evaluating the attribute '%1%' of the derivation '%2%' at %3%:\n")
- % key % drvName % posDrvName);
+ e.addTrace(posDrvName,
+ "while evaluating the attribute '%1%' of the derivation '%2%'",
+ key, drvName);
throw;
}
}
@@ -745,20 +744,20 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
if (drv.builder == "")
throw EvalError({
.hint = hintfmt("required attribute 'builder' missing"),
- .nixCode = NixCode { .errPos = posDrvName }
+ .errPos = posDrvName
});
if (drv.platform == "")
throw EvalError({
.hint = hintfmt("required attribute 'system' missing"),
- .nixCode = NixCode { .errPos = posDrvName }
+ .errPos = posDrvName
});
/* Check whether the derivation name is valid. */
if (isDerivation(drvName))
throw EvalError({
.hint = hintfmt("derivation names are not allowed to end in '%s'", drvExtension),
- .nixCode = NixCode { .errPos = posDrvName }
+ .errPos = posDrvName
});
if (outputHash) {
@@ -766,7 +765,7 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
if (outputs.size() != 1 || *(outputs.begin()) != "out")
throw Error({
.hint = hintfmt("multiple outputs are not supported in fixed-output derivations"),
- .nixCode = NixCode { .errPos = posDrvName }
+ .errPos = posDrvName
});
std::optional<HashType> ht = parseHashTypeOpt(outputHashAlgo);
@@ -775,11 +774,12 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
auto outPath = state.store->makeFixedOutputPath(ingestionMethod, h, drvName);
if (!jsonObject) drv.env["out"] = state.store->printStorePath(outPath);
drv.outputs.insert_or_assign("out", DerivationOutput {
- .path = std::move(outPath),
- .hash = FixedOutputHash {
- .method = ingestionMethod,
- .hash = std::move(h),
- },
+ .output = DerivationOutputFixed {
+ .hash = FixedOutputHash {
+ .method = ingestionMethod,
+ .hash = std::move(h),
+ },
+ },
});
}
@@ -794,8 +794,9 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
if (!jsonObject) drv.env[i] = "";
drv.outputs.insert_or_assign(i,
DerivationOutput {
- .path = StorePath::dummy,
- .hash = std::optional<FixedOutputHash> {},
+ .output = DerivationOutputInputAddressed {
+ .path = StorePath::dummy,
+ },
});
}
@@ -806,8 +807,9 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
if (!jsonObject) drv.env[i] = state.store->printStorePath(outPath);
drv.outputs.insert_or_assign(i,
DerivationOutput {
- .path = std::move(outPath),
- .hash = std::optional<FixedOutputHash>(),
+ .output = DerivationOutputInputAddressed {
+ .path = std::move(outPath),
+ },
});
}
}
@@ -828,7 +830,7 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
mkString(*state.allocAttr(v, state.sDrvPath), drvPathS, {"=" + drvPathS});
for (auto & i : drv.outputs) {
mkString(*state.allocAttr(v, state.symbols.create(i.first)),
- state.store->printStorePath(i.second.path), {"!" + i.first + "!" + drvPathS});
+ state.store->printStorePath(i.second.path(*state.store, drv.name)), {"!" + i.first + "!" + drvPathS});
}
v.attrs->sort();
}
@@ -880,12 +882,12 @@ static void prim_storePath(EvalState & state, const Pos & pos, Value * * args, V
if (!state.store->isInStore(path))
throw EvalError({
.hint = hintfmt("path '%1%' is not in the Nix store", path),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
- Path path2 = state.store->toStorePath(path);
+ auto path2 = state.store->toStorePath(path).first;
if (!settings.readOnlyMode)
- state.store->ensurePath(state.store->parseStorePath(path2));
- context.insert(path2);
+ state.store->ensurePath(path2);
+ context.insert(state.store->printStorePath(path2));
mkString(v, path, context);
}
@@ -901,7 +903,7 @@ static void prim_pathExists(EvalState & state, const Pos & pos, Value * * args,
.hint = hintfmt(
"cannot check the existence of '%1%', since path '%2%' is not valid",
path, e.path),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
}
@@ -947,7 +949,7 @@ static void prim_readFile(EvalState & state, const Pos & pos, Value * * args, Va
} catch (InvalidPathError & e) {
throw EvalError({
.hint = hintfmt("cannot read '%1%', since path '%2%' is not valid", path, e.path),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
}
string s = readFile(state.checkSourcePath(state.toRealPath(path, context)));
@@ -978,7 +980,7 @@ static void prim_findFile(EvalState & state, const Pos & pos, Value * * args, Va
if (i == v2.attrs->end())
throw EvalError({
.hint = hintfmt("attribute 'path' missing"),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
PathSet context;
@@ -989,7 +991,7 @@ static void prim_findFile(EvalState & state, const Pos & pos, Value * * args, Va
} catch (InvalidPathError & e) {
throw EvalError({
.hint = hintfmt("cannot find '%1%', since path '%2%' is not valid", path, e.path),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
}
@@ -1009,7 +1011,7 @@ static void prim_hashFile(EvalState & state, const Pos & pos, Value * * args, Va
if (!ht)
throw Error({
.hint = hintfmt("unknown hash type '%1%'", type),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
PathSet context; // discarded
@@ -1028,7 +1030,7 @@ static void prim_readDir(EvalState & state, const Pos & pos, Value * * args, Val
} catch (InvalidPathError & e) {
throw EvalError({
.hint = hintfmt("cannot read '%1%', since path '%2%' is not valid", path, e.path),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
}
@@ -1104,7 +1106,7 @@ static void prim_toFile(EvalState & state, const Pos & pos, Value * * args, Valu
"in 'toFile': the file named '%1%' must not contain a reference "
"to a derivation but contains (%2%)",
name, path),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
refs.insert(state.store->parseStorePath(path));
}
@@ -1122,7 +1124,7 @@ static void prim_toFile(EvalState & state, const Pos & pos, Value * * args, Valu
static void addPath(EvalState & state, const Pos & pos, const string & name, const Path & path_,
- Value * filterFun, FileIngestionMethod method, const Hash & expectedHash, Value & v)
+ Value * filterFun, FileIngestionMethod method, const std::optional<Hash> expectedHash, Value & v)
{
const auto path = evalSettings.pureEval && expectedHash ?
path_ :
@@ -1153,7 +1155,7 @@ static void addPath(EvalState & state, const Pos & pos, const string & name, con
std::optional<StorePath> expectedStorePath;
if (expectedHash)
- expectedStorePath = state.store->makeFixedOutputPath(method, expectedHash, name);
+ expectedStorePath = state.store->makeFixedOutputPath(method, *expectedHash, name);
Path dstPath;
if (!expectedHash || !state.store->isValidPath(*expectedStorePath)) {
dstPath = state.store->printStorePath(settings.readOnlyMode
@@ -1175,7 +1177,7 @@ static void prim_filterSource(EvalState & state, const Pos & pos, Value * * args
if (!context.empty())
throw EvalError({
.hint = hintfmt("string '%1%' cannot refer to other paths", path),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
state.forceValue(*args[0], pos);
@@ -1184,10 +1186,10 @@ static void prim_filterSource(EvalState & state, const Pos & pos, Value * * args
.hint = hintfmt(
"first argument in call to 'filterSource' is not a function but %1%",
showType(*args[0])),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
- addPath(state, pos, std::string(baseNameOf(path)), path, args[0], FileIngestionMethod::Recursive, Hash(), v);
+ addPath(state, pos, std::string(baseNameOf(path)), path, args[0], FileIngestionMethod::Recursive, std::nullopt, v);
}
static void prim_path(EvalState & state, const Pos & pos, Value * * args, Value & v)
@@ -1197,7 +1199,7 @@ static void prim_path(EvalState & state, const Pos & pos, Value * * args, Value
string name;
Value * filterFun = nullptr;
auto method = FileIngestionMethod::Recursive;
- Hash expectedHash;
+ Hash expectedHash(htSHA256);
for (auto & attr : *args[0]->attrs) {
const string & n(attr.name);
@@ -1207,7 +1209,7 @@ static void prim_path(EvalState & state, const Pos & pos, Value * * args, Value
if (!context.empty())
throw EvalError({
.hint = hintfmt("string '%1%' cannot refer to other paths", path),
- .nixCode = NixCode { .errPos = *attr.pos }
+ .errPos = *attr.pos
});
} else if (attr.name == state.sName)
name = state.forceStringNoCtx(*attr.value, *attr.pos);
@@ -1221,13 +1223,13 @@ static void prim_path(EvalState & state, const Pos & pos, Value * * args, Value
else
throw EvalError({
.hint = hintfmt("unsupported argument '%1%' to 'addPath'", attr.name),
- .nixCode = NixCode { .errPos = *attr.pos }
+ .errPos = *attr.pos
});
}
if (path.empty())
throw EvalError({
.hint = hintfmt("'path' required"),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
if (name.empty())
name = baseNameOf(path);
@@ -1288,7 +1290,7 @@ void prim_getAttr(EvalState & state, const Pos & pos, Value * * args, Value & v)
if (i == args[1]->attrs->end())
throw EvalError({
.hint = hintfmt("attribute '%1%' missing", attr),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
// !!! add to stack trace?
if (state.countCalls && i->pos) state.attrSelects[*i->pos]++;
@@ -1371,7 +1373,7 @@ static void prim_listToAttrs(EvalState & state, const Pos & pos, Value * * args,
if (j == v2.attrs->end())
throw TypeError({
.hint = hintfmt("'name' attribute missing in a call to 'listToAttrs'"),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
string name = state.forceStringNoCtx(*j->value, pos);
@@ -1381,7 +1383,7 @@ static void prim_listToAttrs(EvalState & state, const Pos & pos, Value * * args,
if (j2 == v2.attrs->end())
throw TypeError({
.hint = hintfmt("'value' attribute missing in a call to 'listToAttrs'"),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
v.attrs->push_back(Attr(sym, j2->value, j2->pos));
}
@@ -1457,7 +1459,7 @@ static void prim_functionArgs(EvalState & state, const Pos & pos, Value * * args
if (args[0]->type != tLambda)
throw TypeError({
.hint = hintfmt("'functionArgs' requires a function"),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
if (!args[0]->lambda.fun->matchAttrs) {
@@ -1513,7 +1515,7 @@ static void elemAt(EvalState & state, const Pos & pos, Value & list, int n, Valu
if (n < 0 || (unsigned int) n >= list.listSize())
throw Error({
.hint = hintfmt("list index %1% is out of bounds", n),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
state.forceValue(*list.listElems()[n], pos);
v = *list.listElems()[n];
@@ -1543,7 +1545,7 @@ static void prim_tail(EvalState & state, const Pos & pos, Value * * args, Value
if (args[0]->listSize() == 0)
throw Error({
.hint = hintfmt("'tail' called on an empty list"),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
state.mkList(v, args[0]->listSize() - 1);
@@ -1688,7 +1690,7 @@ static void prim_genList(EvalState & state, const Pos & pos, Value * * args, Val
if (len < 0)
throw EvalError({
.hint = hintfmt("cannot create list of size %1%", len),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
state.mkList(v, len);
@@ -1850,7 +1852,7 @@ static void prim_div(EvalState & state, const Pos & pos, Value * * args, Value &
if (f2 == 0)
throw EvalError({
.hint = hintfmt("division by zero"),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
if (args[0]->type == tFloat || args[1]->type == tFloat) {
@@ -1862,7 +1864,7 @@ static void prim_div(EvalState & state, const Pos & pos, Value * * args, Value &
if (i1 == std::numeric_limits<NixInt>::min() && i2 == -1)
throw EvalError({
.hint = hintfmt("overflow in integer division"),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
mkInt(v, i1 / i2);
@@ -1923,7 +1925,7 @@ static void prim_substring(EvalState & state, const Pos & pos, Value * * args, V
if (start < 0)
throw EvalError({
.hint = hintfmt("negative start position in 'substring'"),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
mkString(v, (unsigned int) start >= s.size() ? "" : string(s, start, len), context);
@@ -1946,7 +1948,7 @@ static void prim_hashString(EvalState & state, const Pos & pos, Value * * args,
if (!ht)
throw Error({
.hint = hintfmt("unknown hash type '%1%'", type),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
PathSet context; // discarded
@@ -1992,12 +1994,12 @@ void prim_match(EvalState & state, const Pos & pos, Value * * args, Value & v)
// limit is _GLIBCXX_REGEX_STATE_LIMIT for libstdc++
throw EvalError({
.hint = hintfmt("memory limit exceeded by regular expression '%s'", re),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
} else {
throw EvalError({
.hint = hintfmt("invalid regular expression '%s'", re),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
}
}
@@ -2065,12 +2067,12 @@ static void prim_split(EvalState & state, const Pos & pos, Value * * args, Value
// limit is _GLIBCXX_REGEX_STATE_LIMIT for libstdc++
throw EvalError({
.hint = hintfmt("memory limit exceeded by regular expression '%s'", re),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
} else {
throw EvalError({
.hint = hintfmt("invalid regular expression '%s'", re),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
}
}
@@ -2104,7 +2106,7 @@ static void prim_replaceStrings(EvalState & state, const Pos & pos, Value * * ar
if (args[0]->listSize() != args[1]->listSize())
throw EvalError({
.hint = hintfmt("'from' and 'to' arguments to 'replaceStrings' have different lengths"),
- .nixCode = NixCode { .errPos = pos }
+ .errPos = pos
});
vector<string> from;