search.cc: sort attribute names with `std::map`

1 files changed, 6 insertions, 6 deletions

diff --git a/src/nix/search.cc b/src/nix/search.cc
index 87cdb2d7e..0fbd3b6c0 100644
--- a/src/nix/search.cc
+++ b/src/nix/search.cc
@@ -82,8 +82,6 @@ struct CmdSearch : SourceExprCommand, MixJSON
 
         auto state = getEvalState();
 
-        bool first = true;
-
         auto jsonOut = json ? std::make_unique<JSONObject>(std::cout) : nullptr;
 
         auto sToplevel = state->symbols.create("_toplevel");
@@ -91,6 +89,8 @@ struct CmdSearch : SourceExprCommand, MixJSON
 
         bool fromCache = false;
 
+        std::map<std::string, std::string> results;
+
         std::function<void(Value *, std::string, bool, JSONObject *)> doExpr;
 
         doExpr = [&](Value * v, std::string attrPath, bool toplevel, JSONObject * cache) {
@@ -138,10 +138,7 @@ struct CmdSearch : SourceExprCommand, MixJSON
                             jsonElem.attr("description", description);
 
                         } else {
-                            if (!first) std::cout << "\n";
-                            first = false;
-
-                            std::cout << fmt(
+                            results[attrPath] = fmt(
                                 "Attribute name: %s\n"
                                 "Package name: %s\n"
                                 "Version: %s\n"
@@ -240,6 +237,9 @@ struct CmdSearch : SourceExprCommand, MixJSON
             if (rename(tmpFile.c_str(), jsonCacheFileName.c_str()) == -1)
                 throw SysError("cannot rename '%s' to '%s'", tmpFile, jsonCacheFileName);
         }
+
+        for (auto el : results) std::cout << el.second << "\n";
+
     }
 };