901 lines
28 KiB
C++
901 lines
28 KiB
C++
#include "installables.hh"
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#include "command.hh"
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#include "attr-path.hh"
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#include "common-eval-args.hh"
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#include "derivations.hh"
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#include "eval-inline.hh"
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#include "eval.hh"
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#include "get-drvs.hh"
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#include "store-api.hh"
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#include "shared.hh"
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#include "flake/flake.hh"
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#include "eval-cache.hh"
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#include "url.hh"
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#include "registry.hh"
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#include <regex>
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#include <queue>
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#include <nlohmann/json.hpp>
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namespace nix {
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void completeFlakeInputPath(
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ref<EvalState> evalState,
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const FlakeRef & flakeRef,
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std::string_view prefix)
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{
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auto flake = flake::getFlake(*evalState, flakeRef, true);
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for (auto & input : flake.inputs)
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if (hasPrefix(input.first, prefix))
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completions->add(input.first);
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}
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MixFlakeOptions::MixFlakeOptions()
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{
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auto category = "Common flake-related options";
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addFlag({
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.longName = "recreate-lock-file",
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.description = "Recreate the flake's lock file from scratch.",
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.category = category,
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.handler = {&lockFlags.recreateLockFile, true}
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});
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addFlag({
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.longName = "no-update-lock-file",
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.description = "Do not allow any updates to the flake's lock file.",
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.category = category,
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.handler = {&lockFlags.updateLockFile, false}
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});
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addFlag({
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.longName = "no-write-lock-file",
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.description = "Do not write the flake's newly generated lock file.",
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.category = category,
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.handler = {&lockFlags.writeLockFile, false}
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});
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addFlag({
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.longName = "no-registries",
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.description =
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"Don't allow lookups in the flake registries. This option is deprecated; use `--no-use-registries`.",
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.category = category,
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.handler = {[&]() {
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lockFlags.useRegistries = false;
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warn("'--no-registries' is deprecated; use '--no-use-registries'");
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}}
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});
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addFlag({
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.longName = "commit-lock-file",
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.description = "Commit changes to the flake's lock file.",
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.category = category,
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.handler = {&lockFlags.commitLockFile, true}
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});
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addFlag({
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.longName = "update-input",
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.description = "Update a specific flake input (ignoring its previous entry in the lock file).",
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.category = category,
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.labels = {"input-path"},
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.handler = {[&](std::string s) {
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lockFlags.inputUpdates.insert(flake::parseInputPath(s));
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}},
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.completer = {[&](size_t, std::string_view prefix) {
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if (auto flakeRef = getFlakeRefForCompletion())
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completeFlakeInputPath(getEvalState(), *flakeRef, prefix);
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}}
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});
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addFlag({
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.longName = "override-input",
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.description = "Override a specific flake input (e.g. `dwarffs/nixpkgs`). This implies `--no-write-lock-file`.",
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.category = category,
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.labels = {"input-path", "flake-url"},
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.handler = {[&](std::string inputPath, std::string flakeRef) {
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lockFlags.writeLockFile = false;
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lockFlags.inputOverrides.insert_or_assign(
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flake::parseInputPath(inputPath),
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parseFlakeRef(flakeRef, absPath(".")));
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}}
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});
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addFlag({
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.longName = "inputs-from",
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.description = "Use the inputs of the specified flake as registry entries.",
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.category = category,
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.labels = {"flake-url"},
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.handler = {[&](std::string flakeRef) {
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auto evalState = getEvalState();
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auto flake = flake::lockFlake(
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*evalState,
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parseFlakeRef(flakeRef, absPath(".")),
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{ .writeLockFile = false });
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for (auto & [inputName, input] : flake.lockFile.root->inputs) {
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auto input2 = flake.lockFile.findInput({inputName}); // resolve 'follows' nodes
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if (auto input3 = std::dynamic_pointer_cast<const flake::LockedNode>(input2)) {
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overrideRegistry(
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fetchers::Input::fromAttrs({{"type","indirect"}, {"id", inputName}}),
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input3->lockedRef.input,
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{});
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}
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}
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}},
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.completer = {[&](size_t, std::string_view prefix) {
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completeFlakeRef(getEvalState()->store, prefix);
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}}
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});
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}
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SourceExprCommand::SourceExprCommand()
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{
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addFlag({
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.longName = "file",
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.shortName = 'f',
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.description = "Interpret installables as attribute paths relative to the Nix expression stored in *file*.",
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.category = installablesCategory,
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.labels = {"file"},
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.handler = {&file},
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.completer = completePath
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});
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addFlag({
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.longName = "expr",
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.description = "Interpret installables as attribute paths relative to the Nix expression *expr*.",
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.category = installablesCategory,
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.labels = {"expr"},
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.handler = {&expr}
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});
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addFlag({
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.longName = "derivation",
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.description = "Operate on the store derivation rather than its outputs.",
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.category = installablesCategory,
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.handler = {&operateOn, OperateOn::Derivation},
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});
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}
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Strings SourceExprCommand::getDefaultFlakeAttrPaths()
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{
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return {"defaultPackage." + settings.thisSystem.get()};
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}
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Strings SourceExprCommand::getDefaultFlakeAttrPathPrefixes()
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{
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return {
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// As a convenience, look for the attribute in
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// 'outputs.packages'.
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"packages." + settings.thisSystem.get() + ".",
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// As a temporary hack until Nixpkgs is properly converted
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// to provide a clean 'packages' set, look in 'legacyPackages'.
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"legacyPackages." + settings.thisSystem.get() + "."
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};
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}
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void SourceExprCommand::completeInstallable(std::string_view prefix)
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{
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if (file) {
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evalSettings.pureEval = false;
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auto state = getEvalState();
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Expr *e = state->parseExprFromFile(
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resolveExprPath(state->checkSourcePath(lookupFileArg(*state, *file)))
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);
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Value root;
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state->eval(e, root);
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auto autoArgs = getAutoArgs(*state);
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std::string prefix_ = std::string(prefix);
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auto sep = prefix_.rfind('.');
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std::string searchWord;
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if (sep != std::string::npos) {
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searchWord = prefix_.substr(sep, std::string::npos);
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prefix_ = prefix_.substr(0, sep);
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} else {
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searchWord = prefix_;
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prefix_ = "";
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}
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Value &v1(*findAlongAttrPath(*state, prefix_, *autoArgs, root).first);
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state->forceValue(v1);
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Value v2;
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state->autoCallFunction(*autoArgs, v1, v2);
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completionType = ctAttrs;
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if (v2.type() == nAttrs) {
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for (auto & i : *v2.attrs) {
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std::string name = i.name;
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if (name.find(searchWord) == 0) {
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completions->add(i.name);
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}
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}
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}
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} else {
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completeFlakeRefWithFragment(
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getEvalState(),
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lockFlags,
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getDefaultFlakeAttrPathPrefixes(),
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getDefaultFlakeAttrPaths(),
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prefix);
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}
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}
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void completeFlakeRefWithFragment(
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ref<EvalState> evalState,
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flake::LockFlags lockFlags,
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Strings attrPathPrefixes,
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const Strings & defaultFlakeAttrPaths,
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std::string_view prefix)
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{
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/* Look for flake output attributes that match the
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prefix. */
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try {
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auto hash = prefix.find('#');
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if (hash == std::string::npos) {
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completeFlakeRef(evalState->store, prefix);
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} else {
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auto fragment = prefix.substr(hash + 1);
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auto flakeRefS = std::string(prefix.substr(0, hash));
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// FIXME: do tilde expansion.
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auto flakeRef = parseFlakeRef(flakeRefS, absPath("."));
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auto evalCache = openEvalCache(*evalState,
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std::make_shared<flake::LockedFlake>(lockFlake(*evalState, flakeRef, lockFlags)));
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auto root = evalCache->getRoot();
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/* Complete 'fragment' relative to all the
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attrpath prefixes as well as the root of the
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flake. */
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attrPathPrefixes.push_back("");
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completionType = ctAttrs;
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for (auto & attrPathPrefixS : attrPathPrefixes) {
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auto attrPathPrefix = parseAttrPath(*evalState, attrPathPrefixS);
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auto attrPathS = attrPathPrefixS + std::string(fragment);
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auto attrPath = parseAttrPath(*evalState, attrPathS);
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std::string lastAttr;
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if (!attrPath.empty() && !hasSuffix(attrPathS, ".")) {
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lastAttr = attrPath.back();
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attrPath.pop_back();
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}
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auto attr = root->findAlongAttrPath(attrPath);
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if (!attr) continue;
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for (auto & attr2 : attr->getAttrs()) {
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if (hasPrefix(attr2, lastAttr)) {
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auto attrPath2 = attr->getAttrPath(attr2);
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/* Strip the attrpath prefix. */
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attrPath2.erase(attrPath2.begin(), attrPath2.begin() + attrPathPrefix.size());
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completions->add(flakeRefS + "#" + concatStringsSep(".", attrPath2));
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}
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}
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}
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/* And add an empty completion for the default
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attrpaths. */
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if (fragment.empty()) {
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for (auto & attrPath : defaultFlakeAttrPaths) {
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auto attr = root->findAlongAttrPath(parseAttrPath(*evalState, attrPath));
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if (!attr) continue;
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completions->add(flakeRefS + "#");
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}
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}
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}
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} catch (Error & e) {
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warn(e.msg());
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}
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}
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void completeFlakeRef(ref<Store> store, std::string_view prefix)
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{
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if (!settings.isExperimentalFeatureEnabled(Xp::Flakes))
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return;
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if (prefix == "")
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completions->add(".");
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completeDir(0, prefix);
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/* Look for registry entries that match the prefix. */
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for (auto & registry : fetchers::getRegistries(store)) {
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for (auto & entry : registry->entries) {
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auto from = entry.from.to_string();
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if (!hasPrefix(prefix, "flake:") && hasPrefix(from, "flake:")) {
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std::string from2(from, 6);
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if (hasPrefix(from2, prefix))
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completions->add(from2);
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} else {
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if (hasPrefix(from, prefix))
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completions->add(from);
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}
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}
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}
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}
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DerivedPath Installable::toDerivedPath()
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{
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auto buildables = toDerivedPaths();
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if (buildables.size() != 1)
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throw Error("installable '%s' evaluates to %d derivations, where only one is expected", what(), buildables.size());
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return std::move(buildables[0]);
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}
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std::vector<std::pair<std::shared_ptr<eval_cache::AttrCursor>, std::string>>
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Installable::getCursors(EvalState & state)
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{
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auto evalCache =
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std::make_shared<nix::eval_cache::EvalCache>(std::nullopt, state,
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[&]() { return toValue(state).first; });
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return {{evalCache->getRoot(), ""}};
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}
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std::pair<std::shared_ptr<eval_cache::AttrCursor>, std::string>
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Installable::getCursor(EvalState & state)
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{
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auto cursors = getCursors(state);
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if (cursors.empty())
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throw Error("cannot find flake attribute '%s'", what());
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return cursors[0];
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}
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struct InstallableStorePath : Installable
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{
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ref<Store> store;
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StorePath storePath;
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InstallableStorePath(ref<Store> store, StorePath && storePath)
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: store(store), storePath(std::move(storePath)) { }
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std::string what() override { return store->printStorePath(storePath); }
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DerivedPaths toDerivedPaths() override
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{
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if (storePath.isDerivation()) {
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auto drv = store->readDerivation(storePath);
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return {
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DerivedPath::Built {
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.drvPath = storePath,
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.outputs = drv.outputNames(),
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}
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};
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} else {
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return {
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DerivedPath::Opaque {
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.path = storePath,
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}
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};
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}
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}
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std::optional<StorePath> getStorePath() override
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{
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return storePath;
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}
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};
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DerivedPaths InstallableValue::toDerivedPaths()
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{
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DerivedPaths res;
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std::map<StorePath, std::set<std::string>> drvsToOutputs;
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RealisedPath::Set drvsToCopy;
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// Group by derivation, helps with .all in particular
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for (auto & drv : toDerivations()) {
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auto outputName = drv.outputName;
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if (outputName == "")
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throw Error("derivation '%s' lacks an 'outputName' attribute", state->store->printStorePath(drv.drvPath));
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drvsToOutputs[drv.drvPath].insert(outputName);
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drvsToCopy.insert(drv.drvPath);
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}
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for (auto & i : drvsToOutputs)
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res.push_back(DerivedPath::Built { i.first, i.second });
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return res;
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}
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struct InstallableAttrPath : InstallableValue
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{
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SourceExprCommand & cmd;
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RootValue v;
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std::string attrPath;
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InstallableAttrPath(ref<EvalState> state, SourceExprCommand & cmd, Value * v, const std::string & attrPath)
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: InstallableValue(state), cmd(cmd), v(allocRootValue(v)), attrPath(attrPath)
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{ }
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std::string what() override { return attrPath; }
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std::pair<Value *, Pos> toValue(EvalState & state) override
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{
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auto [vRes, pos] = findAlongAttrPath(state, attrPath, *cmd.getAutoArgs(state), **v);
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state.forceValue(*vRes);
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return {vRes, pos};
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}
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virtual std::vector<InstallableValue::DerivationInfo> toDerivations() override;
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};
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std::vector<InstallableValue::DerivationInfo> InstallableAttrPath::toDerivations()
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{
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auto v = toValue(*state).first;
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Bindings & autoArgs = *cmd.getAutoArgs(*state);
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DrvInfos drvInfos;
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getDerivations(*state, *v, "", autoArgs, drvInfos, false);
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std::vector<DerivationInfo> res;
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for (auto & drvInfo : drvInfos) {
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res.push_back({
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state->store->parseStorePath(drvInfo.queryDrvPath()),
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state->store->maybeParseStorePath(drvInfo.queryOutPath()),
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drvInfo.queryOutputName()
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});
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}
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return res;
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}
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std::vector<std::string> InstallableFlake::getActualAttrPaths()
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{
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std::vector<std::string> res;
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for (auto & prefix : prefixes)
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res.push_back(prefix + *attrPaths.begin());
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for (auto & s : attrPaths)
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res.push_back(s);
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return res;
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}
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Value * InstallableFlake::getFlakeOutputs(EvalState & state, const flake::LockedFlake & lockedFlake)
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{
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auto vFlake = state.allocValue();
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callFlake(state, lockedFlake, *vFlake);
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auto aOutputs = vFlake->attrs->get(state.symbols.create("outputs"));
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assert(aOutputs);
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state.forceValue(*aOutputs->value);
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return aOutputs->value;
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}
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ref<eval_cache::EvalCache> openEvalCache(
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EvalState & state,
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std::shared_ptr<flake::LockedFlake> lockedFlake)
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{
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auto fingerprint = lockedFlake->getFingerprint();
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return make_ref<nix::eval_cache::EvalCache>(
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evalSettings.useEvalCache && evalSettings.pureEval
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? std::optional { std::cref(fingerprint) }
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: std::nullopt,
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state,
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[&state, lockedFlake]()
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{
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/* For testing whether the evaluation cache is
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complete. */
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if (getEnv("NIX_ALLOW_EVAL").value_or("1") == "0")
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throw Error("not everything is cached, but evaluation is not allowed");
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auto vFlake = state.allocValue();
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flake::callFlake(state, *lockedFlake, *vFlake);
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state.forceAttrs(*vFlake);
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auto aOutputs = vFlake->attrs->get(state.symbols.create("outputs"));
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assert(aOutputs);
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return aOutputs->value;
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});
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}
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static std::string showAttrPaths(const std::vector<std::string> & paths)
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{
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std::string s;
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for (const auto & [n, i] : enumerate(paths)) {
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if (n > 0) s += n + 1 == paths.size() ? " or " : ", ";
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s += '\''; s += i; s += '\'';
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}
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return s;
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}
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InstallableFlake::InstallableFlake(
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SourceExprCommand * cmd,
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ref<EvalState> state,
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FlakeRef && flakeRef,
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Strings && attrPaths,
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Strings && prefixes,
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const flake::LockFlags & lockFlags)
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: InstallableValue(state),
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flakeRef(flakeRef),
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attrPaths(attrPaths),
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prefixes(prefixes),
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lockFlags(lockFlags)
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{
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if (cmd && cmd->getAutoArgs(*state)->size())
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throw UsageError("'--arg' and '--argstr' are incompatible with flakes");
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}
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std::tuple<std::string, FlakeRef, InstallableValue::DerivationInfo> InstallableFlake::toDerivation()
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{
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auto lockedFlake = getLockedFlake();
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auto cache = openEvalCache(*state, lockedFlake);
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auto root = cache->getRoot();
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|
|
for (auto & attrPath : getActualAttrPaths()) {
|
|
auto attr = root->findAlongAttrPath(
|
|
parseAttrPath(*state, attrPath),
|
|
true
|
|
);
|
|
|
|
if (!attr) continue;
|
|
|
|
if (!attr->isDerivation())
|
|
throw Error("flake output attribute '%s' is not a derivation", attrPath);
|
|
|
|
auto drvPath = attr->forceDerivation();
|
|
|
|
auto drvInfo = DerivationInfo{
|
|
std::move(drvPath),
|
|
state->store->maybeParseStorePath(attr->getAttr(state->sOutPath)->getString()),
|
|
attr->getAttr(state->sOutputName)->getString()
|
|
};
|
|
|
|
return {attrPath, lockedFlake->flake.lockedRef, std::move(drvInfo)};
|
|
}
|
|
|
|
throw Error("flake '%s' does not provide attribute %s",
|
|
flakeRef, showAttrPaths(getActualAttrPaths()));
|
|
}
|
|
|
|
std::vector<InstallableValue::DerivationInfo> InstallableFlake::toDerivations()
|
|
{
|
|
std::vector<DerivationInfo> res;
|
|
res.push_back(std::get<2>(toDerivation()));
|
|
return res;
|
|
}
|
|
|
|
std::pair<Value *, Pos> InstallableFlake::toValue(EvalState & state)
|
|
{
|
|
auto lockedFlake = getLockedFlake();
|
|
|
|
auto vOutputs = getFlakeOutputs(state, *lockedFlake);
|
|
|
|
auto emptyArgs = state.allocBindings(0);
|
|
|
|
for (auto & attrPath : getActualAttrPaths()) {
|
|
try {
|
|
auto [v, pos] = findAlongAttrPath(state, attrPath, *emptyArgs, *vOutputs);
|
|
state.forceValue(*v);
|
|
return {v, pos};
|
|
} catch (AttrPathNotFound & e) {
|
|
}
|
|
}
|
|
|
|
throw Error("flake '%s' does not provide attribute %s",
|
|
flakeRef, showAttrPaths(getActualAttrPaths()));
|
|
}
|
|
|
|
std::vector<std::pair<std::shared_ptr<eval_cache::AttrCursor>, std::string>>
|
|
InstallableFlake::getCursors(EvalState & state)
|
|
{
|
|
auto evalCache = openEvalCache(state,
|
|
std::make_shared<flake::LockedFlake>(lockFlake(state, flakeRef, lockFlags)));
|
|
|
|
auto root = evalCache->getRoot();
|
|
|
|
std::vector<std::pair<std::shared_ptr<eval_cache::AttrCursor>, std::string>> res;
|
|
|
|
for (auto & attrPath : getActualAttrPaths()) {
|
|
auto attr = root->findAlongAttrPath(parseAttrPath(state, attrPath));
|
|
if (attr) res.push_back({attr, attrPath});
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
std::shared_ptr<flake::LockedFlake> InstallableFlake::getLockedFlake() const
|
|
{
|
|
flake::LockFlags lockFlagsApplyConfig = lockFlags;
|
|
lockFlagsApplyConfig.applyNixConfig = true;
|
|
if (!_lockedFlake) {
|
|
_lockedFlake = std::make_shared<flake::LockedFlake>(lockFlake(*state, flakeRef, lockFlagsApplyConfig));
|
|
}
|
|
return _lockedFlake;
|
|
}
|
|
|
|
FlakeRef InstallableFlake::nixpkgsFlakeRef() const
|
|
{
|
|
auto lockedFlake = getLockedFlake();
|
|
|
|
if (auto nixpkgsInput = lockedFlake->lockFile.findInput({"nixpkgs"})) {
|
|
if (auto lockedNode = std::dynamic_pointer_cast<const flake::LockedNode>(nixpkgsInput)) {
|
|
debug("using nixpkgs flake '%s'", lockedNode->lockedRef);
|
|
return std::move(lockedNode->lockedRef);
|
|
}
|
|
}
|
|
|
|
return Installable::nixpkgsFlakeRef();
|
|
}
|
|
|
|
std::vector<std::shared_ptr<Installable>> SourceExprCommand::parseInstallables(
|
|
ref<Store> store, std::vector<std::string> ss)
|
|
{
|
|
std::vector<std::shared_ptr<Installable>> result;
|
|
|
|
if (file || expr) {
|
|
if (file && expr)
|
|
throw UsageError("'--file' and '--expr' are exclusive");
|
|
|
|
// FIXME: backward compatibility hack
|
|
if (file) evalSettings.pureEval = false;
|
|
|
|
auto state = getEvalState();
|
|
auto vFile = state->allocValue();
|
|
|
|
if (file)
|
|
state->evalFile(lookupFileArg(*state, *file), *vFile);
|
|
else {
|
|
auto e = state->parseExprFromString(*expr, absPath("."));
|
|
state->eval(e, *vFile);
|
|
}
|
|
|
|
for (auto & s : ss)
|
|
result.push_back(std::make_shared<InstallableAttrPath>(state, *this, vFile, s == "." ? "" : s));
|
|
|
|
} else {
|
|
|
|
for (auto & s : ss) {
|
|
std::exception_ptr ex;
|
|
|
|
if (s.find('/') != std::string::npos) {
|
|
try {
|
|
result.push_back(std::make_shared<InstallableStorePath>(store, store->followLinksToStorePath(s)));
|
|
continue;
|
|
} catch (BadStorePath &) {
|
|
} catch (...) {
|
|
if (!ex)
|
|
ex = std::current_exception();
|
|
}
|
|
}
|
|
|
|
try {
|
|
auto [flakeRef, fragment] = parseFlakeRefWithFragment(s, absPath("."));
|
|
result.push_back(std::make_shared<InstallableFlake>(
|
|
this,
|
|
getEvalState(),
|
|
std::move(flakeRef),
|
|
fragment == "" ? getDefaultFlakeAttrPaths() : Strings{fragment},
|
|
getDefaultFlakeAttrPathPrefixes(),
|
|
lockFlags));
|
|
continue;
|
|
} catch (...) {
|
|
ex = std::current_exception();
|
|
}
|
|
|
|
std::rethrow_exception(ex);
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
std::shared_ptr<Installable> SourceExprCommand::parseInstallable(
|
|
ref<Store> store, const std::string & installable)
|
|
{
|
|
auto installables = parseInstallables(store, {installable});
|
|
assert(installables.size() == 1);
|
|
return installables.front();
|
|
}
|
|
|
|
BuiltPaths getBuiltPaths(ref<Store> evalStore, ref<Store> store, const DerivedPaths & hopefullyBuiltPaths)
|
|
{
|
|
BuiltPaths res;
|
|
for (const auto & b : hopefullyBuiltPaths)
|
|
std::visit(
|
|
overloaded{
|
|
[&](const DerivedPath::Opaque & bo) {
|
|
res.push_back(BuiltPath::Opaque{bo.path});
|
|
},
|
|
[&](const DerivedPath::Built & bfd) {
|
|
OutputPathMap outputs;
|
|
auto drv = evalStore->readDerivation(bfd.drvPath);
|
|
auto outputHashes = staticOutputHashes(*evalStore, drv); // FIXME: expensive
|
|
auto drvOutputs = drv.outputsAndOptPaths(*store);
|
|
for (auto & output : bfd.outputs) {
|
|
if (!outputHashes.count(output))
|
|
throw Error(
|
|
"the derivation '%s' doesn't have an output named '%s'",
|
|
store->printStorePath(bfd.drvPath), output);
|
|
if (settings.isExperimentalFeatureEnabled(
|
|
Xp::CaDerivations)) {
|
|
auto outputId =
|
|
DrvOutput{outputHashes.at(output), output};
|
|
auto realisation =
|
|
store->queryRealisation(outputId);
|
|
if (!realisation)
|
|
throw Error(
|
|
"cannot operate on an output of unbuilt "
|
|
"content-addressed derivation '%s'",
|
|
outputId.to_string());
|
|
outputs.insert_or_assign(
|
|
output, realisation->outPath);
|
|
} else {
|
|
// If ca-derivations isn't enabled, assume that
|
|
// the output path is statically known.
|
|
assert(drvOutputs.count(output));
|
|
assert(drvOutputs.at(output).second);
|
|
outputs.insert_or_assign(
|
|
output, *drvOutputs.at(output).second);
|
|
}
|
|
}
|
|
res.push_back(BuiltPath::Built{bfd.drvPath, outputs});
|
|
},
|
|
},
|
|
b.raw());
|
|
|
|
return res;
|
|
}
|
|
|
|
BuiltPaths build(
|
|
ref<Store> evalStore,
|
|
ref<Store> store,
|
|
Realise mode,
|
|
const std::vector<std::shared_ptr<Installable>> & installables,
|
|
BuildMode bMode)
|
|
{
|
|
if (mode == Realise::Nothing)
|
|
settings.readOnlyMode = true;
|
|
|
|
std::vector<DerivedPath> pathsToBuild;
|
|
|
|
for (auto & i : installables) {
|
|
auto b = i->toDerivedPaths();
|
|
pathsToBuild.insert(pathsToBuild.end(), b.begin(), b.end());
|
|
}
|
|
|
|
if (mode == Realise::Nothing || mode == Realise::Derivation)
|
|
printMissing(store, pathsToBuild, lvlError);
|
|
else if (mode == Realise::Outputs)
|
|
store->buildPaths(pathsToBuild, bMode, evalStore);
|
|
|
|
return getBuiltPaths(evalStore, store, pathsToBuild);
|
|
}
|
|
|
|
BuiltPaths toBuiltPaths(
|
|
ref<Store> evalStore,
|
|
ref<Store> store,
|
|
Realise mode,
|
|
OperateOn operateOn,
|
|
const std::vector<std::shared_ptr<Installable>> & installables)
|
|
{
|
|
if (operateOn == OperateOn::Output)
|
|
return build(evalStore, store, mode, installables);
|
|
else {
|
|
if (mode == Realise::Nothing)
|
|
settings.readOnlyMode = true;
|
|
|
|
BuiltPaths res;
|
|
for (auto & drvPath : toDerivations(store, installables, true))
|
|
res.push_back(BuiltPath::Opaque{drvPath});
|
|
return res;
|
|
}
|
|
}
|
|
|
|
StorePathSet toStorePaths(
|
|
ref<Store> evalStore,
|
|
ref<Store> store,
|
|
Realise mode, OperateOn operateOn,
|
|
const std::vector<std::shared_ptr<Installable>> & installables)
|
|
{
|
|
StorePathSet outPaths;
|
|
for (auto & path : toBuiltPaths(evalStore, store, mode, operateOn, installables)) {
|
|
auto thisOutPaths = path.outPaths();
|
|
outPaths.insert(thisOutPaths.begin(), thisOutPaths.end());
|
|
}
|
|
return outPaths;
|
|
}
|
|
|
|
StorePath toStorePath(
|
|
ref<Store> evalStore,
|
|
ref<Store> store,
|
|
Realise mode, OperateOn operateOn,
|
|
std::shared_ptr<Installable> installable)
|
|
{
|
|
auto paths = toStorePaths(evalStore, store, mode, operateOn, {installable});
|
|
|
|
if (paths.size() != 1)
|
|
throw Error("argument '%s' should evaluate to one store path", installable->what());
|
|
|
|
return *paths.begin();
|
|
}
|
|
|
|
StorePathSet toDerivations(
|
|
ref<Store> store,
|
|
const std::vector<std::shared_ptr<Installable>> & installables,
|
|
bool useDeriver)
|
|
{
|
|
StorePathSet drvPaths;
|
|
|
|
for (const auto & i : installables)
|
|
for (const auto & b : i->toDerivedPaths())
|
|
std::visit(overloaded {
|
|
[&](const DerivedPath::Opaque & bo) {
|
|
if (!useDeriver)
|
|
throw Error("argument '%s' did not evaluate to a derivation", i->what());
|
|
auto derivers = store->queryValidDerivers(bo.path);
|
|
if (derivers.empty())
|
|
throw Error("'%s' does not have a known deriver", i->what());
|
|
// FIXME: use all derivers?
|
|
drvPaths.insert(*derivers.begin());
|
|
},
|
|
[&](const DerivedPath::Built & bfd) {
|
|
drvPaths.insert(bfd.drvPath);
|
|
},
|
|
}, b.raw());
|
|
|
|
return drvPaths;
|
|
}
|
|
|
|
InstallablesCommand::InstallablesCommand()
|
|
{
|
|
expectArgs({
|
|
.label = "installables",
|
|
.handler = {&_installables},
|
|
.completer = {[&](size_t, std::string_view prefix) {
|
|
completeInstallable(prefix);
|
|
}}
|
|
});
|
|
}
|
|
|
|
void InstallablesCommand::prepare()
|
|
{
|
|
if (_installables.empty() && useDefaultInstallables())
|
|
// FIXME: commands like "nix install" should not have a
|
|
// default, probably.
|
|
_installables.push_back(".");
|
|
installables = parseInstallables(getStore(), _installables);
|
|
}
|
|
|
|
std::optional<FlakeRef> InstallablesCommand::getFlakeRefForCompletion()
|
|
{
|
|
if (_installables.empty()) {
|
|
if (useDefaultInstallables())
|
|
return parseFlakeRef(".", absPath("."));
|
|
return {};
|
|
}
|
|
return parseFlakeRef(_installables.front(), absPath("."));
|
|
}
|
|
|
|
InstallableCommand::InstallableCommand()
|
|
{
|
|
expectArgs({
|
|
.label = "installable",
|
|
.optional = true,
|
|
.handler = {&_installable},
|
|
.completer = {[&](size_t, std::string_view prefix) {
|
|
completeInstallable(prefix);
|
|
}}
|
|
});
|
|
}
|
|
|
|
void InstallableCommand::prepare()
|
|
{
|
|
installable = parseInstallable(getStore(), _installable);
|
|
}
|
|
|
|
}
|