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nix-store -q: Check for conflicting flags

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Fixes #364.
This commit is contained in:
Eelco Dolstra 2014-10-14 12:15:39 +02:00
parent 2c1711ae33
commit d04e1ff12a
1 changed files with 12 additions and 4 deletions
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16
src/nix-store/nix-store.cc
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@ -265,15 +265,18 @@ static void printTree(const Path & path,
/* Perform various sorts of queries. */
static void opQuery(Strings opFlags, Strings opArgs)
{
enum { qOutputs, qRequisites, qReferences, qReferrers
, qReferrersClosure, qDeriver, qBinding, qHash, qSize
, qTree, qGraph, qXml, qResolve, qRoots } query = qOutputs;
enum QueryType
{ qDefault, qOutputs, qRequisites, qReferences, qReferrers
, qReferrersClosure, qDeriver, qBinding, qHash, qSize
, qTree, qGraph, qXml, qResolve, qRoots };
QueryType query = qDefault;
bool useOutput = false;
bool includeOutputs = false;
bool forceRealise = false;
string bindingName;
foreach (Strings::iterator, i, opFlags)
foreach (Strings::iterator, i, opFlags) {
QueryType prev = query;
if (*i == "--outputs") query = qOutputs;
else if (*i == "--requisites" || *i == "-R") query = qRequisites;
else if (*i == "--references") query = qReferences;
@ -298,6 +301,11 @@ static void opQuery(Strings opFlags, Strings opArgs)
else if (*i == "--force-realise" || *i == "--force-realize" || *i == "-f") forceRealise = true;
else if (*i == "--include-outputs") includeOutputs = true;
else throw UsageError(format("unknown flag ‘%1%’") % *i);
if (prev != qDefault && prev != query)
throw UsageError(format("query type ‘%1%’ conflicts with earlier flag") % *i);
}
if (query == qDefault) query = qOutputs;
RunPager pager;