From 9169046e64cbffd85a445ebe4313b172a6681646 Mon Sep 17 00:00:00 2001 From: Eelco Dolstra Date: Fri, 31 May 2019 20:10:56 +0200 Subject: [PATCH] Add operator << for LockFile Useful for debugging. --- src/libexpr/primops/flake.cc | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/src/libexpr/primops/flake.cc b/src/libexpr/primops/flake.cc index fdbdc83bc..af7d51834 100644 --- a/src/libexpr/primops/flake.cc +++ b/src/libexpr/primops/flake.cc @@ -121,7 +121,7 @@ nlohmann::json flakeEntryToJson(const LockFile::FlakeEntry & entry) return json; } -void writeLockFile(const LockFile & lockFile, const Path & path) +std::ostream & operator <<(std::ostream & stream, const LockFile & lockFile) { nlohmann::json json; json["version"] = 1; @@ -133,8 +133,14 @@ void writeLockFile(const LockFile & lockFile, const Path & path) json["inputs"] = nlohmann::json::object(); for (auto & x : lockFile.flakeEntries) json["inputs"][x.first.to_string()] = flakeEntryToJson(x.second); + stream << json.dump(4); // '4' = indentation in json file + return stream; +} + +void writeLockFile(const LockFile & lockFile, const Path & path) +{ createDirs(dirOf(path)); - writeFile(path, json.dump(4) + "\n"); // '4' = indentation in json file + writeFile(path, fmt("%s\n", lockFile)); } Path getUserRegistryPath()