Merge pull request #6482 from edolstra/json-utils

Move json stuff out of util.cc

src/libstore/build/local-derivation-goal.cc

@@ -14,6 +14,7 @@
 #include "worker-protocol.hh"
 #include "topo-sort.hh"
 #include "callback.hh"
+#include "json-utils.hh"
 
 #include <regex>
 #include <queue>
@@ -56,8 +57,6 @@
 #include <pwd.h>
 #include <grp.h>
 
-#include <nlohmann/json.hpp>
-
 namespace nix {
 
 void handleDiffHook(

src/libstore/build/worker.cc

@@ -350,7 +350,7 @@ void Worker::waitForInput()
        become `available'.  Note that `available' (i.e., non-blocking)
        includes EOF. */
     std::vector<struct pollfd> pollStatus;
-    std::map <int, int> fdToPollStatus;
+    std::map<int, size_t> fdToPollStatus;
     for (auto & i : children) {
         for (auto & j : i.fds) {
             pollStatus.push_back((struct pollfd) { .fd = j, .events = POLLIN });

src/libutil/json-utils.hh

@@ -0,0 +1,21 @@
+#pragma once
+
+#include <nlohmann/json.hpp>
+
+namespace nix {
+
+const nlohmann::json * get(const nlohmann::json & map, const std::string & key)
+{
+    auto i = map.find(key);
+    if (i == map.end()) return nullptr;
+    return &*i;
+}
+
+nlohmann::json * get(nlohmann::json & map, const std::string & key)
+{
+    auto i = map.find(key);
+    if (i == map.end()) return nullptr;
+    return &*i;
+}
+
+}

src/libutil/util.cc

@@ -1586,23 +1586,8 @@ std::string stripIndentation(std::string_view s)
 }
 
 
-const nlohmann::json * get(const nlohmann::json & map, const std::string & key)
-{
-    auto i = map.find(key);
-    if (i == map.end()) return nullptr;
-    return &*i;
-}
-
-nlohmann::json * get(nlohmann::json & map, const std::string & key)
-{
-    auto i = map.find(key);
-    if (i == map.end()) return nullptr;
-    return &*i;
-}
-
 //////////////////////////////////////////////////////////////////////
 
-
 static Sync<std::pair<unsigned short, unsigned short>> windowSize{{0, 0}};
 
 

src/libutil/util.hh

@@ -558,9 +558,6 @@ typename T::mapped_type * get(T & map, const typename T::key_type & key)
     return &i->second;
 }
 
-const nlohmann::json * get(const nlohmann::json & map, const std::string & key);
-nlohmann::json * get(nlohmann::json & map, const std::string & key);
-
 /* Get a value for the specified key from an associate container, or a default value if the key isn't present. */
 template <class T>
 const typename T::mapped_type & getOr(T & map,