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* Store user environment manifests as a Nix expression in

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$out/manifest.nix rather than as an ATerm.

  (Hm, I thought I committed this two days ago...)
This commit is contained in:
Eelco Dolstra 2010-04-21 15:08:58 +00:00
parent f3b8833a48
commit fe2d869e04
11 changed files with 205 additions and 183 deletions
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31
src/libexpr/primops.cc
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@ -89,24 +89,29 @@ static void prim_genericClosure(EvalState & state, Value * * args, Value & v)
{
startNest(nest, lvlDebug, "finding dependencies");
Expr attrs = evalExpr(state, args[0]);
state.forceAttrs(*args[0]);
/* Get the start set. */
Expr startSet = queryAttr(attrs, "startSet");
if (!startSet) throw EvalError("attribute `startSet' required");
ATermList startSet2 = evalList(state, startSet);
Bindings::iterator startSet =
args[0]->attrs->find(state.symbols.create("startSet"));
if (startSet == args[0]->attrs->end())
throw EvalError("attribute `startSet' required");
state.forceList(startSet->second);
set<Expr> workSet; // !!! gc roots
for (ATermIterator i(startSet2); i; ++i) workSet.insert(*i);
list<Value> workSet;
for (unsigned int n = 0; n < startSet->second.list.length; ++n)
workSet.push_back(*startSet->second.list.elems[n]);
/* Get the operator. */
Expr op = queryAttr(attrs, "operator");
if (!op) throw EvalError("attribute `operator' required");
Bindings::iterator op =
args[0]->attrs->find(state.symbols.create("operator"));
if (op == args[0]->attrs->end())
throw EvalError("attribute `operator' required");
/* Construct the closure by applying the operator to element of
`workSet', adding the result to `workSet', continuing until
no new elements are found. */
ATermList res = ATempty;
list<Value> res;
set<Expr> doneKeys; // !!! gc roots
while (!workSet.empty()) {
Expr e = *(workSet.begin());
@ -322,8 +327,8 @@ static void prim_derivationStrict(EvalState & state, Value * * args, Value & v)
string s = state.coerceToString(i->second, context, true);
drv.env[key] = s;
if (key == "builder") drv.builder = s;
else if (key == "system") drv.platform = s;
else if (key == "name") drvName = s;
else if (i->first == state.sSystem) drv.platform = s;
else if (i->first == state.sName) drvName = s;
else if (key == "outputHash") outputHash = s;
else if (key == "outputHashAlgo") outputHashAlgo = s;
else if (key == "outputHashMode") {
@ -830,9 +835,7 @@ static void prim_map(EvalState & state, Value * * args, Value & v)
for (unsigned int n = 0; n < v.list.length; ++n) {
v.list.elems[n] = &vs[n];
vs[n].type = tApp;
vs[n].app.left = args[0];
vs[n].app.right = args[1]->list.elems[n];
mkApp(vs[n], *args[0], *args[1]->list.elems[n]);
}
}