Merge remote-tracking branch 'upstream/master' into overlayfs-store

src/libstore/store-api.cc

@@ -185,15 +185,15 @@ static std::string makeType(
 
 StorePath Store::makeFixedOutputPath(std::string_view name, const FixedOutputInfo & info) const
 {
-    if (info.hash.hash.type == htSHA256 && info.hash.method == FileIngestionMethod::Recursive) {
-        return makeStorePath(makeType(*this, "source", info.references), info.hash.hash, name);
+    if (info.hash.type == htSHA256 && info.method == FileIngestionMethod::Recursive) {
+        return makeStorePath(makeType(*this, "source", info.references), info.hash, name);
     } else {
         assert(info.references.size() == 0);
         return makeStorePath("output:out",
             hashString(htSHA256,
                 "fixed:out:"
-                + makeFileIngestionPrefix(info.hash.method)
-                + info.hash.hash.to_string(Base16, true) + ":"),
+                + makeFileIngestionPrefix(info.method)
+                + info.hash.to_string(Base16, true) + ":"),
             name);
     }
 }
@@ -201,13 +201,13 @@ StorePath Store::makeFixedOutputPath(std::string_view name, const FixedOutputInf
 
 StorePath Store::makeTextPath(std::string_view name, const TextInfo & info) const
 {
-    assert(info.hash.hash.type == htSHA256);
+    assert(info.hash.type == htSHA256);
     return makeStorePath(
         makeType(*this, "text", StoreReferences {
             .others = info.references,
             .self = false,
         }),
-        info.hash.hash,
+        info.hash,
         name);
 }
 
@@ -233,10 +233,8 @@ std::pair<StorePath, Hash> Store::computeStorePathForPath(std::string_view name,
         ? hashPath(hashAlgo, srcPath, filter).first
         : hashFile(hashAlgo, srcPath);
     FixedOutputInfo caInfo {
-        .hash = {
-            .method = method,
-            .hash = h,
-        },
+        .method = method,
+        .hash = h,
         .references = {},
     };
     return std::make_pair(makeFixedOutputPath(name, caInfo), h);
@@ -249,8 +247,8 @@ StorePath Store::computeStorePathForText(
     const StorePathSet & references) const
 {
     return makeTextPath(name, TextInfo {
-        { .hash = hashString(htSHA256, s) },
-        references,
+        .hash = hashString(htSHA256, s),
+        .references = references,
     });
 }
 
@@ -442,10 +440,8 @@ ValidPathInfo Store::addToStoreSlow(std::string_view name, const Path & srcPath,
         *this,
         name,
         FixedOutputInfo {
-            .hash = {
-                .method = method,
-                .hash = hash,
-            },
+            .method = method,
+            .hash = hash,
             .references = {},
         },
         narHash,
@@ -497,22 +493,50 @@ bool Store::PathInfoCacheValue::isKnownNow()
     return std::chrono::steady_clock::now() < time_point + ttl;
 }
 
-std::map<std::string, std::optional<StorePath>> Store::queryPartialDerivationOutputMap(const StorePath & path)
+std::map<std::string, std::optional<StorePath>> Store::queryStaticPartialDerivationOutputMap(const StorePath & path)
 {
     std::map<std::string, std::optional<StorePath>> outputs;
     auto drv = readInvalidDerivation(path);
-    for (auto& [outputName, output] : drv.outputsAndOptPaths(*this)) {
+    for (auto & [outputName, output] : drv.outputsAndOptPaths(*this)) {
         outputs.emplace(outputName, output.second);
     }
     return outputs;
 }
 
+std::map<std::string, std::optional<StorePath>> Store::queryPartialDerivationOutputMap(
+    const StorePath & path,
+    Store * evalStore_)
+{
+    auto & evalStore = evalStore_ ? *evalStore_ : *this;
+
+    auto outputs = evalStore.queryStaticPartialDerivationOutputMap(path);
+
+    if (!experimentalFeatureSettings.isEnabled(Xp::CaDerivations))
+        return outputs;
+
+    auto drv = evalStore.readInvalidDerivation(path);
+    auto drvHashes = staticOutputHashes(*this, drv);
+    for (auto & [outputName, hash] : drvHashes) {
+        auto realisation = queryRealisation(DrvOutput{hash, outputName});
+        if (realisation) {
+            outputs.insert_or_assign(outputName, realisation->outPath);
+        } else {
+            // queryStaticPartialDerivationOutputMap is not guaranteed
+            // to return std::nullopt for outputs which are not
+            // statically known.
+            outputs.insert({outputName, std::nullopt});
+        }
+    }
+
+    return outputs;
+}
+
 OutputPathMap Store::queryDerivationOutputMap(const StorePath & path) {
     auto resp = queryPartialDerivationOutputMap(path);
     OutputPathMap result;
     for (auto & [outName, optOutPath] : resp) {
         if (!optOutPath)
-            throw Error("output '%s' of derivation '%s' has no store path mapped to it", outName, printStorePath(path));
+            throw MissingRealisation(printStorePath(path), outName);
         result.insert_or_assign(outName, *optOutPath);
     }
     return result;