1 files changed, 36 insertions, 6 deletions

diff --git a/src/libstore/content-address.cc b/src/libstore/content-address.cc
index cf32ccdc4..a98e34cb8 100644
--- a/src/libstore/content-address.cc
+++ b/src/libstore/content-address.cc
@@ -9,16 +9,16 @@ std::string FixedOutputHash::printMethodAlgo() const
     return makeFileIngestionPrefix(method) + printHashType(hash.type);
 }
 
-std::string makeFileIngestionPrefix(const FileIngestionMethod m)
+
+std::string makeFileIngestionPrefix(FileIngestionMethod m)
 {
     switch (m) {
     case FileIngestionMethod::Flat:
         return "";
     case FileIngestionMethod::Recursive:
         return "r:";
-    default:
-        throw Error("impossible, caught both cases");
     }
+    assert(false);
 }
 
 std::string makeFixedOutputCA(FileIngestionMethod method, const Hash & hash)
@@ -32,10 +32,13 @@ std::string renderContentAddress(ContentAddress ca)
 {
     return std::visit(overloaded {
         [](TextHash & th) {
-            return "text:" + th.hash.to_string(Base32, true);
+            return "text:"
+                + th.hash.to_string(Base32, true);
         },
         [](FixedOutputHash & fsh) {
-            return makeFixedOutputCA(fsh.method, fsh.hash);
+            return "fixed:"
+                + makeFileIngestionPrefix(fsh.method)
+                + fsh.hash.to_string(Base32, true);
         }
     }, ca);
 }
@@ -144,7 +147,34 @@ Hash getContentAddressHash(const ContentAddress & ca)
         },
         [](const FixedOutputHash & fsh) {
             return fsh.hash;
-        }
+        },
+    }, ca);
+}
+
+bool StoreReferences::empty() const
+{
+    return !self && others.empty();
+}
+
+size_t StoreReferences::size() const
+{
+    return (self ? 1 : 0) + others.size();
+}
+
+ContentAddressWithReferences caWithoutRefs(const ContentAddress & ca) {
+    return std::visit(overloaded {
+        [&](const TextHash & h) -> ContentAddressWithReferences {
+            return TextInfo {
+                h,
+                .references = {},
+            };
+        },
+        [&](const FixedOutputHash & h) -> ContentAddressWithReferences {
+            return FixedOutputInfo {
+                h,
+                .references = {},
+            };
+        },
     }, ca);
 }