forked from lix-project/lix
9f4cfbb2e7
InstallableValue has children InstallableFlake and InstallableAttrPath, but InstallableFlake was overriding toDerivations, and usage was changed so that InstallableFlake didn't need cmd. So these changes were made: InstallableValue::toDerivations() -> InstalllableAttrPath::toDerivations() InstallableValue::cmd -> InstallableAttrPath::cmd InstallableValue uses state instead of cmd toBuildables() and toDerivations() were made abstract
428 lines
13 KiB
C++
428 lines
13 KiB
C++
#include "command.hh"
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#include "common-args.hh"
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#include "shared.hh"
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#include "store-api.hh"
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#include "derivations.hh"
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#include "archive.hh"
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#include "builtins/buildenv.hh"
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#include "flake/flakeref.hh"
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#include "../nix-env/user-env.hh"
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#include <nlohmann/json.hpp>
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#include <regex>
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using namespace nix;
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struct ProfileElementSource
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{
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FlakeRef originalRef;
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// FIXME: record original attrpath.
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FlakeRef resolvedRef;
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std::string attrPath;
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// FIXME: output names
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};
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struct ProfileElement
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{
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StorePathSet storePaths;
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std::optional<ProfileElementSource> source;
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bool active = true;
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// FIXME: priority
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};
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struct ProfileManifest
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{
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std::vector<ProfileElement> elements;
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ProfileManifest() { }
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ProfileManifest(EvalState & state, const Path & profile)
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{
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auto manifestPath = profile + "/manifest.json";
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if (pathExists(manifestPath)) {
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auto json = nlohmann::json::parse(readFile(manifestPath));
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auto version = json.value("version", 0);
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if (version != 1)
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throw Error("profile manifest '%s' has unsupported version %d", manifestPath, version);
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for (auto & e : json["elements"]) {
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ProfileElement element;
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for (auto & p : e["storePaths"])
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element.storePaths.insert(state.store->parseStorePath((std::string) p));
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element.active = e["active"];
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if (e.value("uri", "") != "") {
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element.source = ProfileElementSource{
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parseFlakeRef(e["originalUri"]),
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parseFlakeRef(e["uri"]),
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e["attrPath"]
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};
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}
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elements.emplace_back(std::move(element));
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}
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}
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else if (pathExists(profile + "/manifest.nix")) {
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// FIXME: needed because of pure mode; ugly.
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if (state.allowedPaths) {
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state.allowedPaths->insert(state.store->followLinksToStore(profile));
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state.allowedPaths->insert(state.store->followLinksToStore(profile + "/manifest.nix"));
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}
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auto drvInfos = queryInstalled(state, state.store->followLinksToStore(profile));
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for (auto & drvInfo : drvInfos) {
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ProfileElement element;
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element.storePaths = singleton(state.store->parseStorePath(drvInfo.queryOutPath()));
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elements.emplace_back(std::move(element));
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}
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}
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}
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std::string toJSON(Store & store) const
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{
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auto array = nlohmann::json::array();
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for (auto & element : elements) {
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auto paths = nlohmann::json::array();
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for (auto & path : element.storePaths)
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paths.push_back(store.printStorePath(path));
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nlohmann::json obj;
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obj["storePaths"] = paths;
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obj["active"] = element.active;
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if (element.source) {
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obj["originalUri"] = element.source->originalRef.to_string();
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obj["uri"] = element.source->resolvedRef.to_string();
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obj["attrPath"] = element.source->attrPath;
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}
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array.push_back(obj);
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}
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nlohmann::json json;
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json["version"] = 1;
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json["elements"] = array;
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return json.dump();
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}
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StorePath build(ref<Store> store)
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{
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auto tempDir = createTempDir();
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StorePathSet references;
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Packages pkgs;
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for (auto & element : elements) {
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for (auto & path : element.storePaths) {
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if (element.active)
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pkgs.emplace_back(store->printStorePath(path), true, 5);
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references.insert(path.clone());
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}
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}
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buildProfile(tempDir, std::move(pkgs));
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writeFile(tempDir + "/manifest.json", toJSON(*store));
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/* Add the symlink tree to the store. */
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StringSink sink;
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dumpPath(tempDir, sink);
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auto narHash = hashString(htSHA256, *sink.s);
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ValidPathInfo info(store->makeFixedOutputPath(true, narHash, "profile", references));
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info.references = std::move(references);
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info.narHash = narHash;
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info.narSize = sink.s->size();
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info.ca = makeFixedOutputCA(true, info.narHash);
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store->addToStore(info, sink.s);
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return std::move(info.path);
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}
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};
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struct CmdProfileInstall : InstallablesCommand, MixDefaultProfile
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{
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std::string description() override
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{
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return "install a package into a profile";
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}
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Examples examples() override
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{
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return {
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Example{
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"To install a package from Nixpkgs:",
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"nix profile install nixpkgs#hello"
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},
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Example{
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"To install a package from a specific branch of Nixpkgs:",
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"nix profile install nixpkgs/release-19.09#hello"
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},
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Example{
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"To install a package from a specific revision of Nixpkgs:",
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"nix profile install nixpkgs/1028bb33859f8dfad7f98e1c8d185f3d1aaa7340#hello"
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},
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};
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}
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void run(ref<Store> store) override
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{
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ProfileManifest manifest(*getEvalState(), *profile);
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std::vector<StorePathWithOutputs> pathsToBuild;
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for (auto & installable : installables) {
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if (auto installable2 = std::dynamic_pointer_cast<InstallableFlake>(installable)) {
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auto [attrPath, resolvedRef, drv] = installable2->toDerivation();
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ProfileElement element;
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element.storePaths = singleton(drv.outPath.clone()); // FIXME
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element.source = ProfileElementSource{
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installable2->flakeRef,
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resolvedRef,
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attrPath,
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};
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pathsToBuild.emplace_back(drv.drvPath.clone(), StringSet{"out"}); // FIXME
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manifest.elements.emplace_back(std::move(element));
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} else
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throw Error("'nix profile install' does not support argument '%s'", installable->what());
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}
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store->buildPaths(pathsToBuild);
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updateProfile(manifest.build(store));
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}
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};
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class MixProfileElementMatchers : virtual Args
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{
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std::vector<std::string> _matchers;
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public:
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MixProfileElementMatchers()
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{
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expectArgs("elements", &_matchers);
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}
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typedef std::variant<size_t, Path, std::regex> Matcher;
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std::vector<Matcher> getMatchers(ref<Store> store)
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{
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std::vector<Matcher> res;
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for (auto & s : _matchers) {
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size_t n;
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if (string2Int(s, n))
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res.push_back(n);
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else if (store->isStorePath(s))
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res.push_back(s);
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else
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res.push_back(std::regex(s, std::regex::extended | std::regex::icase));
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}
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return res;
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}
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bool matches(const Store & store, const ProfileElement & element, size_t pos, const std::vector<Matcher> & matchers)
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{
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for (auto & matcher : matchers) {
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if (auto n = std::get_if<size_t>(&matcher)) {
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if (*n == pos) return true;
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} else if (auto path = std::get_if<Path>(&matcher)) {
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if (element.storePaths.count(store.parseStorePath(*path))) return true;
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} else if (auto regex = std::get_if<std::regex>(&matcher)) {
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if (element.source
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&& std::regex_match(element.source->attrPath, *regex))
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return true;
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}
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}
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return false;
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}
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};
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struct CmdProfileRemove : virtual EvalCommand, MixDefaultProfile, MixProfileElementMatchers
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{
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std::string description() override
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{
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return "remove packages from a profile";
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}
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Examples examples() override
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{
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return {
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Example{
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"To remove a package by attribute path:",
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"nix profile remove packages.x86_64-linux.hello"
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},
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Example{
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"To remove all packages:",
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"nix profile remove '.*'"
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},
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Example{
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"To remove a package by store path:",
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"nix profile remove /nix/store/rr3y0c6zyk7kjjl8y19s4lsrhn4aiq1z-hello-2.10"
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},
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Example{
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"To remove a package by position:",
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"nix profile remove 3"
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},
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};
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}
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void run(ref<Store> store) override
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{
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ProfileManifest oldManifest(*getEvalState(), *profile);
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auto matchers = getMatchers(store);
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ProfileManifest newManifest;
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for (size_t i = 0; i < oldManifest.elements.size(); ++i) {
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auto & element(oldManifest.elements[i]);
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if (!matches(*store, element, i, matchers))
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newManifest.elements.push_back(std::move(element));
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}
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// FIXME: warn about unused matchers?
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printInfo("removed %d packages, kept %d packages",
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oldManifest.elements.size() - newManifest.elements.size(),
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newManifest.elements.size());
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updateProfile(newManifest.build(store));
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}
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};
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struct CmdProfileUpgrade : virtual SourceExprCommand, MixDefaultProfile, MixProfileElementMatchers
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{
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std::string description() override
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{
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return "upgrade packages using their most recent flake";
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}
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Examples examples() override
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{
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return {
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Example{
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"To upgrade all packages that were installed using a mutable flake reference:",
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"nix profile upgrade '.*'"
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},
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Example{
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"To upgrade a specific package:",
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"nix profile upgrade packages.x86_64-linux.hello"
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},
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};
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}
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void run(ref<Store> store) override
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{
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ProfileManifest manifest(*getEvalState(), *profile);
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auto matchers = getMatchers(store);
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// FIXME: code duplication
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std::vector<StorePathWithOutputs> pathsToBuild;
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for (size_t i = 0; i < manifest.elements.size(); ++i) {
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auto & element(manifest.elements[i]);
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if (element.source
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&& !element.source->originalRef.input->isImmutable()
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&& matches(*store, element, i, matchers))
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{
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Activity act(*logger, lvlChatty, actUnknown,
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fmt("checking '%s' for updates", element.source->attrPath));
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InstallableFlake installable(getEvalState(), FlakeRef(element.source->originalRef), {element.source->attrPath}, {}, lockFlags);
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auto [attrPath, resolvedRef, drv] = installable.toDerivation();
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if (element.source->resolvedRef == resolvedRef) continue;
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printInfo("upgrading '%s' from flake '%s' to '%s'",
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element.source->attrPath, element.source->resolvedRef, resolvedRef);
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element.storePaths = singleton(drv.outPath.clone()); // FIXME
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element.source = ProfileElementSource{
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installable.flakeRef,
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resolvedRef,
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attrPath,
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};
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pathsToBuild.emplace_back(drv.drvPath, StringSet{"out"}); // FIXME
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}
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}
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store->buildPaths(pathsToBuild);
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updateProfile(manifest.build(store));
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}
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};
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struct CmdProfileInfo : virtual EvalCommand, virtual StoreCommand, MixDefaultProfile
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{
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std::string description() override
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{
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return "list installed packages";
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}
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Examples examples() override
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{
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return {
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Example{
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"To show what packages are installed in the default profile:",
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"nix profile info"
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},
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};
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}
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void run(ref<Store> store) override
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{
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ProfileManifest manifest(*getEvalState(), *profile);
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for (size_t i = 0; i < manifest.elements.size(); ++i) {
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auto & element(manifest.elements[i]);
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logger->stdout("%d %s %s %s", i,
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element.source ? element.source->originalRef.to_string() + "#" + element.source->attrPath : "-",
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element.source ? element.source->resolvedRef.to_string() + "#" + element.source->attrPath : "-",
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concatStringsSep(" ", store->printStorePathSet(element.storePaths)));
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}
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}
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};
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struct CmdProfile : virtual MultiCommand, virtual Command
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{
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CmdProfile()
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: MultiCommand({
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{"install", []() { return make_ref<CmdProfileInstall>(); }},
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{"remove", []() { return make_ref<CmdProfileRemove>(); }},
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{"upgrade", []() { return make_ref<CmdProfileUpgrade>(); }},
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{"info", []() { return make_ref<CmdProfileInfo>(); }},
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})
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{ }
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std::string description() override
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{
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return "manage Nix profiles";
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}
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void run() override
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{
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if (!command)
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throw UsageError("'nix profile' requires a sub-command.");
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command->second->prepare();
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command->second->run();
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}
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void printHelp(const string & programName, std::ostream & out) override
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{
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MultiCommand::printHelp(programName, out);
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}
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};
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static auto r1 = registerCommand<CmdProfile>("profile");
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