ac89bb064a
All OS and IO operations should be moved out, leaving only some misc portable pure functions. This is useful to avoid copious CPP when doing things like Windows and Emscripten ports. Newly exposed functions to break cycles: - `restoreSignals` - `updateWindowSize`
58 lines
1.4 KiB
C++
58 lines
1.4 KiB
C++
#include "current-process.hh"
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#include "command-installable-value.hh"
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#include "shared.hh"
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#include "eval.hh"
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#include "attr-path.hh"
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#include "progress-bar.hh"
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#include "editor-for.hh"
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#include <unistd.h>
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using namespace nix;
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struct CmdEdit : InstallableValueCommand
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{
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std::string description() override
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{
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return "open the Nix expression of a Nix package in $EDITOR";
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}
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std::string doc() override
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{
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return
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#include "edit.md"
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;
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}
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Category category() override { return catSecondary; }
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void run(ref<Store> store, ref<InstallableValue> installable) override
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{
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auto state = getEvalState();
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const auto [file, line] = [&] {
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auto [v, pos] = installable->toValue(*state);
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try {
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return findPackageFilename(*state, *v, installable->what());
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} catch (NoPositionInfo &) {
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throw Error("cannot find position information for '%s", installable->what());
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}
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}();
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stopProgressBar();
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auto args = editorFor(file, line);
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restoreProcessContext();
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execvp(args.front().c_str(), stringsToCharPtrs(args).data());
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std::string command;
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for (const auto &arg : args) command += " '" + arg + "'";
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throw SysError("cannot run command%s", command);
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}
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};
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static auto rCmdEdit = registerCommand<CmdEdit>("edit");
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