mirror of
https://github.com/privatevoid-net/nix-super.git
synced 2024-09-22 01:18:03 +03:00
a385e51a08
after #6218 `Symbol` no longer confers a uniqueness invariant on the string it wraps, it is now possible to create multiple symbols that compare equal but whose string contents have different addresses. this guarantee is now only provided by `SymbolIdx`, leaving `Symbol` only as a string wrapper that knows about the intricacies of how symbols need to be formatted for output. this change renames `SymbolIdx` to `Symbol` to restore the previous semantics of `Symbol` to that name. we also keep the wrapper type and rename it to `SymbolStr` instead of returning plain strings from lookups into the symbol table because symbols are formatted for output in many places. theoretically we do not need `SymbolStr`, only a function that formats a string for output as a symbol, but having to wrap every symbol that appears in a message into eg `formatSymbol()` is error-prone and inconvient.
1008 lines
32 KiB
C++
1008 lines
32 KiB
C++
#include "globals.hh"
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#include "installables.hh"
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#include "util.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 "build-result.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("."), true));
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}},
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.completer = {[&](size_t n, std::string_view prefix) {
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if (n == 0) {
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if (auto flakeRef = getFlakeRefForCompletion())
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completeFlakeInputPath(getEvalState(), *flakeRef, prefix);
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} else if (n == 1) {
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completeFlakeRef(getEvalState()->store, prefix);
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}
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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(bool supportReadOnlyMode)
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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 =
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"Interpret installables as attribute paths relative to the Nix expression stored in *file*. "
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"If *file* is the character -, then a Nix expression will be read from standard input.",
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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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if (supportReadOnlyMode) {
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addFlag({
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.longName = "read-only",
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.description =
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"Do not instantiate each evaluated derivation. "
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"This improves performance, but can cause errors when accessing "
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"store paths of derivations during evaluation.",
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.handler = {&readOnlyMode, true},
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});
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}
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}
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Strings SourceExprCommand::getDefaultFlakeAttrPaths()
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{
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return {
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"packages." + settings.thisSystem.get() + ".default",
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"defaultPackage." + settings.thisSystem.get()
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};
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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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completionType = ctAttrs;
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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 + 1, 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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auto [v, pos] = findAlongAttrPath(*state, prefix_, *autoArgs, root);
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Value &v1(*v);
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state->forceValue(v1, pos);
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Value v2;
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state->autoCallFunction(*autoArgs, v1, v2);
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if (v2.type() == nAttrs) {
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for (auto & i : *v2.attrs) {
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std::string name = state->symbols[i.name];
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if (name.find(searchWord) == 0) {
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if (prefix_ == "")
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completions->add(name);
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else
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completions->add(prefix_ + "." + 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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completionType = ctAttrs;
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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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auto flakeRef = parseFlakeRef(expandTilde(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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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 = evalState->symbols[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(evalState->symbols[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(".", evalState->symbols.resolve(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<ref<eval_cache::AttrCursor>>
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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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ref<eval_cache::AttrCursor>
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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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static StorePath getDeriver(
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ref<Store> store,
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const Installable & i,
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const StorePath & drvPath)
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{
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auto derivers = store->queryValidDerivers(drvPath);
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if (derivers.empty())
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throw Error("'%s' does not have a known deriver", i.what());
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// FIXME: use all derivers?
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return *derivers.begin();
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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() const 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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StorePathSet toDrvPaths(ref<Store> store) override
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{
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if (storePath.isDerivation()) {
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return {storePath};
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} else {
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return {getDeriver(store, *this, storePath)};
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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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StorePathSet InstallableValue::toDrvPaths(ref<Store> store)
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{
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StorePathSet res;
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for (auto & drv : toDerivations())
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res.insert(drv.drvPath);
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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() const override { return attrPath; }
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std::pair<Value *, PosIdx> 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, pos);
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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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auto drvPath = drvInfo.queryDrvPath();
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if (!drvPath)
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throw Error("'%s' is not a derivation", what());
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res.push_back({ *drvPath, drvInfo.queryOutputName() });
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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();
|
|
|
|
callFlake(state, lockedFlake, *vFlake);
|
|
|
|
auto aOutputs = vFlake->attrs->get(state.symbols.create("outputs"));
|
|
assert(aOutputs);
|
|
|
|
state.forceValue(*aOutputs->value, [&]() { return aOutputs->value->determinePos(noPos); });
|
|
|
|
return aOutputs->value;
|
|
}
|
|
|
|
ref<eval_cache::EvalCache> openEvalCache(
|
|
EvalState & state,
|
|
std::shared_ptr<flake::LockedFlake> lockedFlake)
|
|
{
|
|
auto fingerprint = lockedFlake->getFingerprint();
|
|
return make_ref<nix::eval_cache::EvalCache>(
|
|
evalSettings.useEvalCache && evalSettings.pureEval
|
|
? std::optional { std::cref(fingerprint) }
|
|
: std::nullopt,
|
|
state,
|
|
[&state, lockedFlake]()
|
|
{
|
|
/* For testing whether the evaluation cache is
|
|
complete. */
|
|
if (getEnv("NIX_ALLOW_EVAL").value_or("1") == "0")
|
|
throw Error("not everything is cached, but evaluation is not allowed");
|
|
|
|
auto vFlake = state.allocValue();
|
|
flake::callFlake(state, *lockedFlake, *vFlake);
|
|
|
|
state.forceAttrs(*vFlake, noPos);
|
|
|
|
auto aOutputs = vFlake->attrs->get(state.symbols.create("outputs"));
|
|
assert(aOutputs);
|
|
|
|
return aOutputs->value;
|
|
});
|
|
}
|
|
|
|
static std::string showAttrPaths(const std::vector<std::string> & paths)
|
|
{
|
|
std::string s;
|
|
for (const auto & [n, i] : enumerate(paths)) {
|
|
if (n > 0) s += n + 1 == paths.size() ? " or " : ", ";
|
|
s += '\''; s += i; s += '\'';
|
|
}
|
|
return s;
|
|
}
|
|
|
|
InstallableFlake::InstallableFlake(
|
|
SourceExprCommand * cmd,
|
|
ref<EvalState> state,
|
|
FlakeRef && flakeRef,
|
|
std::string_view fragment,
|
|
Strings attrPaths,
|
|
Strings prefixes,
|
|
const flake::LockFlags & lockFlags)
|
|
: InstallableValue(state),
|
|
flakeRef(flakeRef),
|
|
attrPaths(fragment == "" ? attrPaths : Strings{(std::string) fragment}),
|
|
prefixes(fragment == "" ? Strings{} : prefixes),
|
|
lockFlags(lockFlags)
|
|
{
|
|
if (cmd && cmd->getAutoArgs(*state)->size())
|
|
throw UsageError("'--arg' and '--argstr' are incompatible with flakes");
|
|
}
|
|
|
|
std::tuple<std::string, FlakeRef, InstallableValue::DerivationInfo> InstallableFlake::toDerivation()
|
|
{
|
|
auto attr = getCursor(*state);
|
|
|
|
auto attrPath = attr->getAttrPathStr();
|
|
|
|
if (!attr->isDerivation())
|
|
throw Error("flake output attribute '%s' is not a derivation", attrPath);
|
|
|
|
auto drvPath = attr->forceDerivation();
|
|
|
|
auto drvInfo = DerivationInfo {
|
|
std::move(drvPath),
|
|
attr->getAttr("outputName")->getString()
|
|
};
|
|
|
|
return {attrPath, getLockedFlake()->flake.lockedRef, std::move(drvInfo)};
|
|
}
|
|
|
|
std::vector<InstallableValue::DerivationInfo> InstallableFlake::toDerivations()
|
|
{
|
|
std::vector<DerivationInfo> res;
|
|
res.push_back(std::get<2>(toDerivation()));
|
|
return res;
|
|
}
|
|
|
|
std::pair<Value *, PosIdx> InstallableFlake::toValue(EvalState & state)
|
|
{
|
|
return {&getCursor(state)->forceValue(), noPos};
|
|
}
|
|
|
|
std::vector<ref<eval_cache::AttrCursor>>
|
|
InstallableFlake::getCursors(EvalState & state)
|
|
{
|
|
auto evalCache = openEvalCache(state,
|
|
std::make_shared<flake::LockedFlake>(lockFlake(state, flakeRef, lockFlags)));
|
|
|
|
auto root = evalCache->getRoot();
|
|
|
|
std::vector<ref<eval_cache::AttrCursor>> res;
|
|
|
|
for (auto & attrPath : getActualAttrPaths()) {
|
|
auto attr = root->findAlongAttrPath(parseAttrPath(state, attrPath));
|
|
if (attr) res.push_back(ref(*attr));
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
ref<eval_cache::AttrCursor> InstallableFlake::getCursor(EvalState & state)
|
|
{
|
|
auto lockedFlake = getLockedFlake();
|
|
|
|
auto cache = openEvalCache(state, lockedFlake);
|
|
auto root = cache->getRoot();
|
|
|
|
Suggestions suggestions;
|
|
|
|
auto attrPaths = getActualAttrPaths();
|
|
|
|
for (auto & attrPath : attrPaths) {
|
|
debug("trying flake output attribute '%s'", attrPath);
|
|
|
|
auto attrOrSuggestions = root->findAlongAttrPath(
|
|
parseAttrPath(state, attrPath),
|
|
true
|
|
);
|
|
|
|
if (!attrOrSuggestions) {
|
|
suggestions += attrOrSuggestions.getSuggestions();
|
|
continue;
|
|
}
|
|
|
|
return *attrOrSuggestions;
|
|
}
|
|
|
|
throw Error(
|
|
suggestions,
|
|
"flake '%s' does not provide attribute %s",
|
|
flakeRef,
|
|
showAttrPaths(attrPaths));
|
|
}
|
|
|
|
std::shared_ptr<flake::LockedFlake> InstallableFlake::getLockedFlake() const
|
|
{
|
|
if (!_lockedFlake) {
|
|
flake::LockFlags lockFlagsApplyConfig = lockFlags;
|
|
lockFlagsApplyConfig.applyNixConfig = true;
|
|
_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 (readOnlyMode) {
|
|
settings.readOnlyMode = true;
|
|
}
|
|
|
|
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 == "-") {
|
|
auto e = state->parseStdin();
|
|
state->eval(e, *vFile);
|
|
} else 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(),
|
|
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 Installable::build(
|
|
ref<Store> evalStore,
|
|
ref<Store> store,
|
|
Realise mode,
|
|
const std::vector<std::shared_ptr<Installable>> & installables,
|
|
BuildMode bMode)
|
|
{
|
|
BuiltPaths res;
|
|
for (auto & [_, builtPath] : build2(evalStore, store, mode, installables, bMode))
|
|
res.push_back(builtPath);
|
|
return res;
|
|
}
|
|
|
|
std::vector<std::pair<std::shared_ptr<Installable>, BuiltPath>> Installable::build2(
|
|
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;
|
|
std::map<DerivedPath, std::vector<std::shared_ptr<Installable>>> backmap;
|
|
|
|
for (auto & i : installables) {
|
|
for (auto b : i->toDerivedPaths()) {
|
|
pathsToBuild.push_back(b);
|
|
backmap[b].push_back(i);
|
|
}
|
|
}
|
|
|
|
std::vector<std::pair<std::shared_ptr<Installable>, BuiltPath>> res;
|
|
|
|
switch (mode) {
|
|
|
|
case Realise::Nothing:
|
|
case Realise::Derivation:
|
|
printMissing(store, pathsToBuild, lvlError);
|
|
|
|
for (auto & path : pathsToBuild) {
|
|
for (auto & installable : backmap[path]) {
|
|
std::visit(overloaded {
|
|
[&](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)) {
|
|
DrvOutput outputId { outputHashes.at(output), output };
|
|
auto realisation = store->queryRealisation(outputId);
|
|
if (!realisation)
|
|
throw Error(
|
|
"cannot operate on an output of the "
|
|
"unbuilt 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({installable, BuiltPath::Built { bfd.drvPath, outputs }});
|
|
},
|
|
[&](const DerivedPath::Opaque & bo) {
|
|
res.push_back({installable, BuiltPath::Opaque { bo.path }});
|
|
},
|
|
}, path.raw());
|
|
}
|
|
}
|
|
|
|
break;
|
|
|
|
case Realise::Outputs: {
|
|
for (auto & buildResult : store->buildPathsWithResults(pathsToBuild, bMode, evalStore)) {
|
|
if (!buildResult.success())
|
|
buildResult.rethrow();
|
|
|
|
for (auto & installable : backmap[buildResult.path]) {
|
|
std::visit(overloaded {
|
|
[&](const DerivedPath::Built & bfd) {
|
|
std::map<std::string, StorePath> outputs;
|
|
for (auto & path : buildResult.builtOutputs)
|
|
outputs.emplace(path.first.outputName, path.second.outPath);
|
|
res.push_back({installable, BuiltPath::Built { bfd.drvPath, outputs }});
|
|
},
|
|
[&](const DerivedPath::Opaque & bo) {
|
|
res.push_back({installable, BuiltPath::Opaque { bo.path }});
|
|
},
|
|
}, buildResult.path.raw());
|
|
}
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
default:
|
|
assert(false);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
BuiltPaths Installable::toBuiltPaths(
|
|
ref<Store> evalStore,
|
|
ref<Store> store,
|
|
Realise mode,
|
|
OperateOn operateOn,
|
|
const std::vector<std::shared_ptr<Installable>> & installables)
|
|
{
|
|
if (operateOn == OperateOn::Output)
|
|
return Installable::build(evalStore, store, mode, installables);
|
|
else {
|
|
if (mode == Realise::Nothing)
|
|
settings.readOnlyMode = true;
|
|
|
|
BuiltPaths res;
|
|
for (auto & drvPath : Installable::toDerivations(store, installables, true))
|
|
res.push_back(BuiltPath::Opaque{drvPath});
|
|
return res;
|
|
}
|
|
}
|
|
|
|
StorePathSet Installable::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 Installable::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 Installable::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());
|
|
drvPaths.insert(getDeriver(store, *i, bo.path));
|
|
},
|
|
[&](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 profile 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 parseFlakeRefWithFragment(".", absPath(".")).first;
|
|
return {};
|
|
}
|
|
return parseFlakeRefWithFragment(_installables.front(), absPath(".")).first;
|
|
}
|
|
|
|
InstallableCommand::InstallableCommand(bool supportReadOnlyMode)
|
|
: SourceExprCommand(supportReadOnlyMode)
|
|
{
|
|
expectArgs({
|
|
.label = "installable",
|
|
.optional = true,
|
|
.handler = {&_installable},
|
|
.completer = {[&](size_t, std::string_view prefix) {
|
|
completeInstallable(prefix);
|
|
}}
|
|
});
|
|
}
|
|
|
|
void InstallableCommand::prepare()
|
|
{
|
|
installable = parseInstallable(getStore(), _installable);
|
|
}
|
|
|
|
}
|