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-rw-r--r--src/libexpr/eval.cc1
-rw-r--r--src/libexpr/eval.hh2
-rw-r--r--src/libexpr/get-drvs.cc46
-rw-r--r--src/libexpr/get-drvs.hh11
-rw-r--r--src/nix-env/nix-env.cc79
5 files changed, 94 insertions, 45 deletions
diff --git a/src/libexpr/eval.cc b/src/libexpr/eval.cc
index 9eb5fc758..676dd3ac4 100644
--- a/src/libexpr/eval.cc
+++ b/src/libexpr/eval.cc
@@ -138,6 +138,7 @@ EvalState::EvalState()
, sName(symbols.create("name"))
, sSystem(symbols.create("system"))
, sOverrides(symbols.create("__overrides"))
+ , sOutputs(symbols.create("outputs"))
, sOutputName(symbols.create("outputName"))
, sIgnoreNulls(symbols.create("__ignoreNulls"))
, baseEnv(allocEnv(128))
diff --git a/src/libexpr/eval.hh b/src/libexpr/eval.hh
index 1d3baaab8..a57efa08f 100644
--- a/src/libexpr/eval.hh
+++ b/src/libexpr/eval.hh
@@ -93,7 +93,7 @@ public:
SymbolTable symbols;
const Symbol sWith, sOutPath, sDrvPath, sType, sMeta, sName,
- sSystem, sOverrides, sOutputName, sIgnoreNulls;
+ sSystem, sOverrides, sOutputs, sOutputName, sIgnoreNulls;
/* If set, force copying files to the Nix store even if they
already exist there. */
diff --git a/src/libexpr/get-drvs.cc b/src/libexpr/get-drvs.cc
index 2ee55bdca..f1cbc0bab 100644
--- a/src/libexpr/get-drvs.cc
+++ b/src/libexpr/get-drvs.cc
@@ -28,12 +28,42 @@ string DrvInfo::queryOutPath(EvalState & state) const
}
+DrvInfo::Outputs DrvInfo::queryOutputs(EvalState & state)
+{
+ if (outputs.empty()) {
+ /* Get the ‘outputs’ list. */
+ Bindings::iterator i = attrs->find(state.sOutputs);
+
+ if (i == attrs->end())
+ outputs["out"] = queryOutPath(state);
+ else {
+ state.forceList(*i->value);
+
+ /* For each output... */
+ for (unsigned int j = 0; j < i->value->list.length; ++j) {
+ /* Evaluate the corresponding attribute set. */
+ string name = state.forceStringNoCtx(*i->value->list.elems[j]);
+ Bindings::iterator out = attrs->find(state.symbols.create(name));
+ if (out == attrs->end()) continue; // FIXME: throw error?
+ state.forceAttrs(*out->value);
+
+ /* And evaluate its ‘outPath’ attribute. */
+ Bindings::iterator outPath = out->value->attrs->find(state.sOutPath);
+ if (outPath == out->value->attrs->end()) continue; // FIXME: throw error?
+ PathSet context;
+ outputs[name] = state.coerceToPath(*outPath->value, context);
+ }
+ }
+ }
+ return outputs;
+}
+
+
string DrvInfo::queryOutputName(EvalState & state) const
{
if (outputName == "" && attrs) {
Bindings::iterator i = attrs->find(state.sOutputName);
- PathSet context;
- (string &) outputName = i != attrs->end() ? state.coerceToString(*i->value, context) : "";
+ (string &) outputName = i != attrs->end() ? state.forceStringNoCtx(*i->value) : "";
}
return outputName;
}
@@ -42,9 +72,9 @@ string DrvInfo::queryOutputName(EvalState & state) const
MetaInfo DrvInfo::queryMetaInfo(EvalState & state) const
{
if (metaInfoRead) return meta;
-
+
(bool &) metaInfoRead = true;
-
+
Bindings::iterator a = attrs->find(state.sMeta);
if (a == attrs->end()) return meta; /* fine, empty meta information */
@@ -108,7 +138,7 @@ static bool getDerivation(EvalState & state, Value & v,
done.insert(v.attrs);
DrvInfo drv;
-
+
Bindings::iterator i = v.attrs->find(state.sName);
/* !!! We really would like to have a decent back trace here. */
if (i == v.attrs->end()) throw TypeError("derivation name missing");
@@ -126,7 +156,7 @@ static bool getDerivation(EvalState & state, Value & v,
drvs.push_back(drv);
return false;
-
+
} catch (AssertionError & e) {
if (ignoreAssertionFailures) return false;
throw;
@@ -159,7 +189,7 @@ static void getDerivations(EvalState & state, Value & vIn,
{
Value v;
state.autoCallFunction(autoArgs, vIn, v);
-
+
/* Process the expression. */
DrvInfo drv;
@@ -222,5 +252,5 @@ void getDerivations(EvalState & state, Value & v, const string & pathPrefix,
getDerivations(state, v, pathPrefix, autoArgs, drvs, done, ignoreAssertionFailures);
}
-
+
}
diff --git a/src/libexpr/get-drvs.hh b/src/libexpr/get-drvs.hh
index f84636a1a..af3998e40 100644
--- a/src/libexpr/get-drvs.hh
+++ b/src/libexpr/get-drvs.hh
@@ -25,16 +25,20 @@ typedef std::map<string, MetaValue> MetaInfo;
struct DrvInfo
{
+public:
+ typedef std::map<string, Path> Outputs;
+
private:
string drvPath;
string outPath;
string outputName;
+ Outputs outputs;
bool metaInfoRead;
MetaInfo meta;
bool failed; // set if we get an AssertionError
-
+
public:
string name;
string attrPath; /* path towards the derivation */
@@ -48,6 +52,7 @@ public:
string queryDrvPath(EvalState & state) const;
string queryOutPath(EvalState & state) const;
string queryOutputName(EvalState & state) const;
+ Outputs queryOutputs(EvalState & state);
MetaInfo queryMetaInfo(EvalState & state) const;
MetaValue queryMetaInfo(EvalState & state, const string & name) const;
@@ -55,7 +60,7 @@ public:
{
drvPath = s;
}
-
+
void setOutPath(const string & s)
{
outPath = s;
@@ -84,5 +89,5 @@ void getDerivations(EvalState & state, Value & v, const string & pathPrefix,
Bindings & autoArgs, DrvInfos & drvs,
bool ignoreAssertionFailures);
-
+
}
diff --git a/src/nix-env/nix-env.cc b/src/nix-env/nix-env.cc
index 5e171d0a0..c980116b2 100644
--- a/src/nix-env/nix-env.cc
+++ b/src/nix-env/nix-env.cc
@@ -1030,7 +1030,7 @@ static void opQuery(Globals & globals,
if (xmlOutput) {
if (i->system != "") attrs["system"] = i->system;
}
- else if (printSystem)
+ else if (printSystem)
columns.push_back(i->system);
if (printDrvPath) {
@@ -1040,13 +1040,16 @@ static void opQuery(Globals & globals,
} else
columns.push_back(drvPath == "" ? "-" : drvPath);
}
-
- if (printOutPath) {
- string outPath = i->queryOutPath(globals.state);
- if (xmlOutput) {
- if (outPath != "") attrs["outPath"] = outPath;
- } else
- columns.push_back(outPath);
+
+ if (printOutPath && !xmlOutput) {
+ DrvInfo::Outputs outputs = i->queryOutputs(globals.state);
+ string s;
+ foreach (DrvInfo::Outputs::iterator, j, outputs) {
+ if (!s.empty()) s += ';';
+ if (j->first != "out") { s += j->first; s += "="; }
+ s += j->second;
+ }
+ columns.push_back(s);
}
if (printDescription) {
@@ -1059,35 +1062,45 @@ static void opQuery(Globals & globals,
columns.push_back(descr);
}
- if (xmlOutput)
- if (printMeta) {
+ if (xmlOutput) {
+ if (printOutPath || printMeta) {
XMLOpenElement item(xml, "item", attrs);
- MetaInfo meta = i->queryMetaInfo(globals.state);
- for (MetaInfo::iterator j = meta.begin(); j != meta.end(); ++j) {
- XMLAttrs attrs2;
- attrs2["name"] = j->first;
- if (j->second.type == MetaValue::tpString) {
- attrs2["type"] = "string";
- attrs2["value"] = j->second.stringValue;
- xml.writeEmptyElement("meta", attrs2);
- } else if (j->second.type == MetaValue::tpInt) {
- attrs2["type"] = "int";
- attrs2["value"] = (format("%1%") % j->second.intValue).str();
- xml.writeEmptyElement("meta", attrs2);
- } else if (j->second.type == MetaValue::tpStrings) {
- attrs2["type"] = "strings";
- XMLOpenElement m(xml, "meta", attrs2);
- foreach (Strings::iterator, k, j->second.stringValues) {
- XMLAttrs attrs3;
- attrs3["value"] = *k;
- xml.writeEmptyElement("string", attrs3);
- }
+ if (printOutPath) {
+ DrvInfo::Outputs outputs = i->queryOutputs(globals.state);
+ foreach (DrvInfo::Outputs::iterator, j, outputs) {
+ XMLAttrs attrs2;
+ attrs2["name"] = j->first;
+ attrs2["path"] = j->second;
+ xml.writeEmptyElement("output", attrs2);
}
}
- }
- else
+ if (printMeta) {
+ MetaInfo meta = i->queryMetaInfo(globals.state);
+ for (MetaInfo::iterator j = meta.begin(); j != meta.end(); ++j) {
+ XMLAttrs attrs2;
+ attrs2["name"] = j->first;
+ if (j->second.type == MetaValue::tpString) {
+ attrs2["type"] = "string";
+ attrs2["value"] = j->second.stringValue;
+ xml.writeEmptyElement("meta", attrs2);
+ } else if (j->second.type == MetaValue::tpInt) {
+ attrs2["type"] = "int";
+ attrs2["value"] = (format("%1%") % j->second.intValue).str();
+ xml.writeEmptyElement("meta", attrs2);
+ } else if (j->second.type == MetaValue::tpStrings) {
+ attrs2["type"] = "strings";
+ XMLOpenElement m(xml, "meta", attrs2);
+ foreach (Strings::iterator, k, j->second.stringValues) {
+ XMLAttrs attrs3;
+ attrs3["value"] = *k;
+ xml.writeEmptyElement("string", attrs3);
+ }
+ }
+ }
+ }
+ } else
xml.writeEmptyElement("item", attrs);
- else
+ } else
table.push_back(columns);
cout.flush();