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Check meta values and warn about bad ones

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This commit is contained in:
Eelco Dolstra 2013-11-19 14:29:39 +01:00
parent 0f24400d90
commit 30b986908e
4 changed files with 54 additions and 26 deletions
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54
src/nix-env/nix-env.cc
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@ -873,8 +873,12 @@ static void queryJSON(Globals & globals, vector<DrvInfo> & elems)
foreach (StringSet::iterator, j, metaNames) {
metaObj.attr(*j);
Value * v = i->queryMeta(*j);
PathSet context;
printValueAsJSON(globals.state, true, *v, cout, context);
if (!v)
printMsg(lvlError, format("derivation `%1%' has invalid meta attribute `%2%'") % i->name % *j);
else {
PathSet context;
printValueAsJSON(globals.state, true, *v, cout, context);
}
}
}
}
@ -1112,27 +1116,31 @@ static void opQuery(Globals & globals,
foreach (StringSet::iterator, j, metaNames) {
XMLAttrs attrs2;
attrs2["name"] = *j;
Value & v(*i->queryMeta(*j));
if (v.type == tString) {
attrs2["type"] = "string";
attrs2["value"] = v.string.s;
xml.writeEmptyElement("meta", attrs2);
} else if (v.type == tInt) {
attrs2["type"] = "int";
attrs2["value"] = (format("%1%") % v.integer).str();
xml.writeEmptyElement("meta", attrs2);
} else if (v.type == tBool) {
attrs2["type"] = "bool";
attrs2["value"] = v.boolean ? "true" : "false";
xml.writeEmptyElement("meta", attrs2);
} else if (v.type == tList) {
attrs2["type"] = "strings";
XMLOpenElement m(xml, "meta", attrs2);
for (unsigned int j = 0; j < v.list.length; ++j) {
string s = globals.state.forceStringNoCtx(*v.list.elems[j]);
XMLAttrs attrs3;
attrs3["value"] = s;
xml.writeEmptyElement("string", attrs3);
Value * v = i->queryMeta(*j);
if (!v)
printMsg(lvlError, format("derivation `%1%' has invalid meta attribute `%2%'") % i->name % *j);
else {
if (v->type == tString) {
attrs2["type"] = "string";
attrs2["value"] = v->string.s;
xml.writeEmptyElement("meta", attrs2);
} else if (v->type == tInt) {
attrs2["type"] = "int";
attrs2["value"] = (format("%1%") % v->integer).str();
xml.writeEmptyElement("meta", attrs2);
} else if (v->type == tBool) {
attrs2["type"] = "bool";
attrs2["value"] = v->boolean ? "true" : "false";
xml.writeEmptyElement("meta", attrs2);
} else if (v->type == tList) {
attrs2["type"] = "strings";
XMLOpenElement m(xml, "meta", attrs2);
for (unsigned int j = 0; j < v->list.length; ++j) {
if (v->list.elems[j]->type != tString) continue;
XMLAttrs attrs3;
attrs3["value"] = v->list.elems[j]->string.s;
xml.writeEmptyElement("string", attrs3);
}
}
}
}