118 lines
3.4 KiB
C++
118 lines
3.4 KiB
C++
// FIXME: integrate this with nix path-info?
|
|
|
|
#include "command.hh"
|
|
#include "common-args.hh"
|
|
#include "store-api.hh"
|
|
#include "archive.hh"
|
|
#include "json.hh"
|
|
#include "derivations.hh"
|
|
|
|
using namespace nix;
|
|
|
|
struct CmdShowDerivation : InstallablesCommand
|
|
{
|
|
bool recursive = false;
|
|
|
|
CmdShowDerivation()
|
|
{
|
|
addFlag({
|
|
.longName = "recursive",
|
|
.shortName = 'r',
|
|
.description = "include the dependencies of the specified derivations",
|
|
.handler = {&recursive, true}
|
|
});
|
|
}
|
|
|
|
std::string description() override
|
|
{
|
|
return "show the contents of a store derivation";
|
|
}
|
|
|
|
Examples examples() override
|
|
{
|
|
return {
|
|
Example{
|
|
"To show the store derivation that results from evaluating the Hello package:",
|
|
"nix show-derivation nixpkgs.hello"
|
|
},
|
|
Example{
|
|
"To show the full derivation graph (if available) that produced your NixOS system:",
|
|
"nix show-derivation -r /run/current-system"
|
|
},
|
|
};
|
|
}
|
|
|
|
Category category() override { return catUtility; }
|
|
|
|
void run(ref<Store> store) override
|
|
{
|
|
auto drvPaths = toDerivations(store, installables, true);
|
|
|
|
if (recursive) {
|
|
StorePathSet closure;
|
|
store->computeFSClosure(drvPaths, closure);
|
|
drvPaths = std::move(closure);
|
|
}
|
|
|
|
{
|
|
|
|
JSONObject jsonRoot(std::cout, true);
|
|
|
|
for (auto & drvPath : drvPaths) {
|
|
if (!drvPath.isDerivation()) continue;
|
|
|
|
auto drvObj(jsonRoot.object(store->printStorePath(drvPath)));
|
|
|
|
auto drv = store->readDerivation(drvPath);
|
|
|
|
{
|
|
auto outputsObj(drvObj.object("outputs"));
|
|
for (auto & output : drv.outputs) {
|
|
auto outputObj(outputsObj.object(output.first));
|
|
outputObj.attr("path", store->printStorePath(output.second.path));
|
|
if (output.second.hash) {
|
|
outputObj.attr("hashAlgo", output.second.hash->printMethodAlgo());
|
|
outputObj.attr("hash", output.second.hash->hash.to_string(Base16, false));
|
|
}
|
|
}
|
|
}
|
|
|
|
{
|
|
auto inputsList(drvObj.list("inputSrcs"));
|
|
for (auto & input : drv.inputSrcs)
|
|
inputsList.elem(store->printStorePath(input));
|
|
}
|
|
|
|
{
|
|
auto inputDrvsObj(drvObj.object("inputDrvs"));
|
|
for (auto & input : drv.inputDrvs) {
|
|
auto inputList(inputDrvsObj.list(store->printStorePath(input.first)));
|
|
for (auto & outputId : input.second)
|
|
inputList.elem(outputId);
|
|
}
|
|
}
|
|
|
|
drvObj.attr("platform", drv.platform);
|
|
drvObj.attr("builder", drv.builder);
|
|
|
|
{
|
|
auto argsList(drvObj.list("args"));
|
|
for (auto & arg : drv.args)
|
|
argsList.elem(arg);
|
|
}
|
|
|
|
{
|
|
auto envObj(drvObj.object("env"));
|
|
for (auto & var : drv.env)
|
|
envObj.attr(var.first, var.second);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
std::cout << "\n";
|
|
}
|
|
};
|
|
|
|
static auto r1 = registerCommand<CmdShowDerivation>("show-derivation");
|