Keep splitting libcmd headers & files

.gitignore

@@ -103,6 +103,7 @@ outputs/
 
 *.a
 *.o
+*.o.tmp
 *.so
 *.dylib
 *.dll

src/libcmd/command.cc

@@ -4,6 +4,7 @@
 #include "derivations.hh"
 #include "nixexpr.hh"
 #include "profiles.hh"
+#include "repl.hh"
 
 #include <nlohmann/json.hpp>
 
@@ -121,7 +122,7 @@ ref<EvalState> EvalCommand::getEvalState()
             ;
 
         if (startReplOnEvalErrors) {
-            evalState->debugRepl = &runRepl;
+            evalState->debugRepl = &AbstractNixRepl::runSimple;
         };
     }
     return ref<EvalState>(evalState);
@@ -218,20 +219,6 @@ void StorePathCommand::run(ref<Store> store, std::vector<StorePath> && storePath
     run(store, *storePaths.begin());
 }
 
-Strings editorFor(const Path & file, uint32_t line)
-{
-    auto editor = getEnv("EDITOR").value_or("cat");
-    auto args = tokenizeString<Strings>(editor);
-    if (line > 0 && (
-        editor.find("emacs") != std::string::npos ||
-        editor.find("nano") != std::string::npos ||
-        editor.find("vim") != std::string::npos ||
-        editor.find("kak") != std::string::npos))
-        args.push_back(fmt("+%d", line));
-    args.push_back(file);
-    return args;
-}
-
 MixProfile::MixProfile()
 {
     addFlag({

src/libcmd/command.hh

@@ -231,10 +231,6 @@ static RegisterCommand registerCommand2(std::vector<std::string> && name)
     return RegisterCommand(std::move(name), [](){ return make_ref<T>(); });
 }
 
-/* Helper function to generate args that invoke $EDITOR on
-   filename:lineno. */
-Strings editorFor(const Path & file, uint32_t line);
-
 struct MixProfile : virtual StoreCommand
 {
     std::optional<Path> profile;
@@ -284,8 +280,4 @@ void printClosureDiff(
     const StorePath & afterPath,
     std::string_view indent);
 
-
-void runRepl(
-    ref<EvalState> evalState,
-    const ValMap & extraEnv);
 }

src/libcmd/editor-for.cc

@@ -0,0 +1,20 @@
+#include "util.hh"
+#include "editor-for.hh"
+
+namespace nix {
+
+Strings editorFor(const Path & file, uint32_t line)
+{
+    auto editor = getEnv("EDITOR").value_or("cat");
+    auto args = tokenizeString<Strings>(editor);
+    if (line > 0 && (
+        editor.find("emacs") != std::string::npos ||
+        editor.find("nano") != std::string::npos ||
+        editor.find("vim") != std::string::npos ||
+        editor.find("kak") != std::string::npos))
+        args.push_back(fmt("+%d", line));
+    args.push_back(file);
+    return args;
+}
+
+}

src/libcmd/editor-for.hh

@@ -0,0 +1,11 @@
+#pragma once
+
+#include "types.hh"
+
+namespace nix {
+
+/* Helper function to generate args that invoke $EDITOR on
+   filename:lineno. */
+Strings editorFor(const Path & file, uint32_t line);
+
+}

src/libcmd/installable-attr-path.cc

@@ -0,0 +1,109 @@
+#include "globals.hh"
+#include "installable-attr-path.hh"
+#include "outputs-spec.hh"
+#include "util.hh"
+#include "command.hh"
+#include "attr-path.hh"
+#include "common-eval-args.hh"
+#include "derivations.hh"
+#include "eval-inline.hh"
+#include "eval.hh"
+#include "get-drvs.hh"
+#include "store-api.hh"
+#include "shared.hh"
+#include "flake/flake.hh"
+#include "eval-cache.hh"
+#include "url.hh"
+#include "registry.hh"
+#include "build-result.hh"
+
+#include <regex>
+#include <queue>
+
+#include <nlohmann/json.hpp>
+
+namespace nix {
+
+InstallableAttrPath::InstallableAttrPath(
+    ref<EvalState> state,
+    SourceExprCommand & cmd,
+    Value * v,
+    const std::string & attrPath,
+    ExtendedOutputsSpec extendedOutputsSpec)
+    : InstallableValue(state)
+    , cmd(cmd)
+    , v(allocRootValue(v))
+    , attrPath(attrPath)
+    , extendedOutputsSpec(std::move(extendedOutputsSpec))
+{ }
+
+std::pair<Value *, PosIdx> InstallableAttrPath::toValue(EvalState & state)
+{
+    auto [vRes, pos] = findAlongAttrPath(state, attrPath, *cmd.getAutoArgs(state), **v);
+    state.forceValue(*vRes, pos);
+    return {vRes, pos};
+}
+
+DerivedPathsWithInfo InstallableAttrPath::toDerivedPaths()
+{
+    auto v = toValue(*state).first;
+
+    Bindings & autoArgs = *cmd.getAutoArgs(*state);
+
+    DrvInfos drvInfos;
+    getDerivations(*state, *v, "", autoArgs, drvInfos, false);
+
+    // Backward compatibility hack: group results by drvPath. This
+    // helps keep .all output together.
+    std::map<StorePath, OutputsSpec> byDrvPath;
+
+    for (auto & drvInfo : drvInfos) {
+        auto drvPath = drvInfo.queryDrvPath();
+        if (!drvPath)
+            throw Error("'%s' is not a derivation", what());
+
+        auto newOutputs = std::visit(overloaded {
+            [&](const ExtendedOutputsSpec::Default & d) -> OutputsSpec {
+                std::set<std::string> outputsToInstall;
+                for (auto & output : drvInfo.queryOutputs(false, true))
+                    outputsToInstall.insert(output.first);
+                return OutputsSpec::Names { std::move(outputsToInstall) };
+            },
+            [&](const ExtendedOutputsSpec::Explicit & e) -> OutputsSpec {
+                return e;
+            },
+        }, extendedOutputsSpec.raw());
+
+        auto [iter, didInsert] = byDrvPath.emplace(*drvPath, newOutputs);
+
+        if (!didInsert)
+            iter->second = iter->second.union_(newOutputs);
+    }
+
+    DerivedPathsWithInfo res;
+    for (auto & [drvPath, outputs] : byDrvPath)
+        res.push_back({
+            .path = DerivedPath::Built {
+                .drvPath = drvPath,
+                .outputs = outputs,
+            },
+        });
+
+    return res;
+}
+
+InstallableAttrPath InstallableAttrPath::parse(
+    ref<EvalState> state,
+    SourceExprCommand & cmd,
+    Value * v,
+    std::string_view prefix,
+    ExtendedOutputsSpec extendedOutputsSpec)
+{
+    return {
+        state, cmd, v,
+        prefix == "." ? "" : std::string { prefix },
+        extendedOutputsSpec
+    };
+}
+
+}

src/libcmd/installable-attr-path.hh

@@ -0,0 +1,56 @@
+#include "globals.hh"
+#include "installable-value.hh"
+#include "outputs-spec.hh"
+#include "util.hh"
+#include "command.hh"
+#include "attr-path.hh"
+#include "common-eval-args.hh"
+#include "derivations.hh"
+#include "eval-inline.hh"
+#include "eval.hh"
+#include "get-drvs.hh"
+#include "store-api.hh"
+#include "shared.hh"
+#include "eval-cache.hh"
+#include "url.hh"
+#include "registry.hh"
+#include "build-result.hh"
+
+#include <regex>
+#include <queue>
+
+#include <nlohmann/json.hpp>
+
+namespace nix {
+
+class InstallableAttrPath : public InstallableValue
+{
+    SourceExprCommand & cmd;
+    RootValue v;
+    std::string attrPath;
+    ExtendedOutputsSpec extendedOutputsSpec;
+
+    InstallableAttrPath(
+        ref<EvalState> state,
+        SourceExprCommand & cmd,
+        Value * v,
+        const std::string & attrPath,
+        ExtendedOutputsSpec extendedOutputsSpec);
+
+    std::string what() const override { return attrPath; };
+
+    std::pair<Value *, PosIdx> toValue(EvalState & state) override;
+
+    DerivedPathsWithInfo toDerivedPaths() override;
+
+public:
+
+    static InstallableAttrPath parse(
+        ref<EvalState> state,
+        SourceExprCommand & cmd,
+        Value * v,
+        std::string_view prefix,
+        ExtendedOutputsSpec extendedOutputsSpec);
+};
+
+}