mirror of
https://github.com/NixOS/nix
synced 2025-06-28 05:21:16 +02:00
Pluggable fetchers
Flakes are now fetched using an extensible mechanism. Also lots of other flake cleanups.
This commit is contained in:
Eelco Dolstra
parent
1bf9eb21b7
commit
9f4d8c6170
34 changed files with 1613 additions and 1298 deletions
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@ -20,10 +20,6 @@ class EvalState;
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struct StorePath;
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enum RepairFlag : bool;
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namespace flake {
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struct FlakeRegistry;
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}
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typedef void (* PrimOpFun) (EvalState & state, const Pos & pos, Value * * args, Value & v);
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@ -67,8 +63,6 @@ typedef std::list<SearchPathElem> SearchPath;
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/* Initialise the Boehm GC, if applicable. */
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void initGC();
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typedef std::vector<std::pair<std::string, std::string>> RegistryOverrides;
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class EvalState
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{
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@ -95,8 +89,6 @@ public:
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const ref<Store> store;
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RegistryOverrides registryOverrides;
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private:
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SrcToStore srcToStore;
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@ -224,8 +216,6 @@ public:
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path. Nothing is copied to the store. */
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Path coerceToPath(const Pos & pos, Value & v, PathSet & context);
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void addRegistryOverrides(RegistryOverrides overrides) { registryOverrides = overrides; }
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public:
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/* The base environment, containing the builtin functions and
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@ -328,16 +318,6 @@ private:
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friend struct ExprOpConcatLists;
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friend struct ExprSelect;
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friend void prim_getAttr(EvalState & state, const Pos & pos, Value * * args, Value & v);
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public:
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const std::vector<std::shared_ptr<flake::FlakeRegistry>> getFlakeRegistries();
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std::shared_ptr<flake::FlakeRegistry> getGlobalFlakeRegistry();
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private:
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std::shared_ptr<flake::FlakeRegistry> _globalFlakeRegistry;
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std::once_flag _globalFlakeRegistryInit;
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};
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@ -388,15 +368,6 @@ struct EvalSettings : Config
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Setting<bool> traceFunctionCalls{this, false, "trace-function-calls",
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"Emit log messages for each function entry and exit at the 'vomit' log level (-vvvv)."};
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Setting<std::string> flakeRegistry{this, "https://github.com/NixOS/flake-registry/raw/master/flake-registry.json", "flake-registry",
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"Path or URI of the global flake registry."};
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Setting<bool> allowDirty{this, true, "allow-dirty",
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"Whether to allow dirty Git/Mercurial trees."};
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Setting<bool> warnDirty{this, true, "warn-dirty",
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"Whether to warn about dirty Git/Mercurial trees."};
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};
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extern EvalSettings evalSettings;
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@ -2,16 +2,12 @@
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#include "lockfile.hh"
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#include "primops.hh"
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#include "eval-inline.hh"
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#include "primops/fetchGit.hh"
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#include "download.hh"
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#include "args.hh"
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#include "store-api.hh"
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#include "fetchers/fetchers.hh"
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#include <iostream>
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#include <queue>
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#include <regex>
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#include <ctime>
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#include <iomanip>
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#include <nlohmann/json.hpp>
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namespace nix {
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@ -19,105 +15,6 @@ using namespace flake;
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namespace flake {
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/* Read a registry. */
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std::shared_ptr<FlakeRegistry> readRegistry(const Path & path)
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{
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auto registry = std::make_shared<FlakeRegistry>();
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if (!pathExists(path))
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return std::make_shared<FlakeRegistry>();
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auto json = nlohmann::json::parse(readFile(path));
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auto version = json.value("version", 0);
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if (version != 1)
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throw Error("flake registry '%s' has unsupported version %d", path, version);
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auto flakes = json["flakes"];
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for (auto i = flakes.begin(); i != flakes.end(); ++i) {
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// FIXME: remove 'uri' soon.
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auto url = i->value("url", i->value("uri", ""));
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if (url.empty())
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throw Error("flake registry '%s' lacks a 'url' attribute for entry '%s'",
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path, i.key());
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registry->entries.emplace(i.key(), url);
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}
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return registry;
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}
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/* Write a registry to a file. */
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void writeRegistry(const FlakeRegistry & registry, const Path & path)
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{
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nlohmann::json json;
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json["version"] = 1;
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for (auto elem : registry.entries)
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json["flakes"][elem.first.to_string()] = { {"url", elem.second.to_string()} };
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createDirs(dirOf(path));
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writeFile(path, json.dump(4)); // The '4' is the number of spaces used in the indentation in the json file.
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}
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Path getUserRegistryPath()
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{
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return getHome() + "/.config/nix/registry.json";
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}
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std::shared_ptr<FlakeRegistry> getUserRegistry()
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{
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return readRegistry(getUserRegistryPath());
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}
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std::shared_ptr<FlakeRegistry> getFlagRegistry(RegistryOverrides registryOverrides)
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{
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auto flagRegistry = std::make_shared<FlakeRegistry>();
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for (auto const & x : registryOverrides) {
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flagRegistry->entries.insert_or_assign(FlakeRef(x.first), FlakeRef(x.second));
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}
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return flagRegistry;
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}
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static FlakeRef lookupFlake(EvalState & state, const FlakeRef & flakeRef, const Registries & registries,
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std::vector<FlakeRef> pastSearches = {});
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FlakeRef updateFlakeRef(EvalState & state, const FlakeRef & newRef, const Registries & registries, std::vector<FlakeRef> pastSearches)
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{
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std::string errorMsg = "found cycle in flake registries: ";
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for (FlakeRef oldRef : pastSearches) {
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errorMsg += oldRef.to_string();
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if (oldRef == newRef)
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throw Error(errorMsg);
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errorMsg += " - ";
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}
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pastSearches.push_back(newRef);
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return lookupFlake(state, newRef, registries, pastSearches);
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}
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static FlakeRef lookupFlake(EvalState & state, const FlakeRef & flakeRef, const Registries & registries,
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std::vector<FlakeRef> pastSearches)
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{
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for (std::shared_ptr<FlakeRegistry> registry : registries) {
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auto i = registry->entries.find(flakeRef);
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if (i != registry->entries.end()) {
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auto newRef = i->second;
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return updateFlakeRef(state, newRef, registries, pastSearches);
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}
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auto j = registry->entries.find(flakeRef.baseRef());
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if (j != registry->entries.end()) {
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auto newRef = j->second;
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newRef.ref = flakeRef.ref;
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newRef.rev = flakeRef.rev;
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newRef.subdir = flakeRef.subdir;
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return updateFlakeRef(state, newRef, registries, pastSearches);
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}
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}
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if (!flakeRef.isDirect())
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throw Error("could not resolve flake reference '%s'", flakeRef);
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return flakeRef;
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}
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/* If 'allowLookup' is true, then resolve 'flakeRef' using the
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registries. */
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static FlakeRef maybeLookupFlake(
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@ -127,7 +24,7 @@ static FlakeRef maybeLookupFlake(
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{
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if (!flakeRef.isDirect()) {
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if (allowLookup)
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return lookupFlake(state, flakeRef, state.getFlakeRegistries());
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return flakeRef.resolve(state.store);
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else
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throw Error("'%s' is an indirect flake reference, but registry lookups are not allowed", flakeRef);
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} else
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@ -140,6 +37,7 @@ static FlakeRef lookupInRefMap(
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const RefMap & refMap,
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const FlakeRef & flakeRef)
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{
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#if 0
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// FIXME: inefficient.
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for (auto & i : refMap) {
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if (flakeRef.contains(i.first)) {
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@ -148,45 +46,11 @@ static FlakeRef lookupInRefMap(
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return i.second;
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}
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}
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#endif
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return flakeRef;
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}
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static SourceInfo fetchInput(EvalState & state, const FlakeRef & resolvedRef)
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{
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assert(resolvedRef.isDirect());
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auto doGit = [&](const GitInfo & gitInfo) {
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FlakeRef ref(resolvedRef.baseRef());
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ref.ref = gitInfo.ref;
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ref.rev = gitInfo.rev;
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SourceInfo info(ref);
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info.storePath = gitInfo.storePath;
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info.revCount = gitInfo.revCount;
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info.narHash = state.store->queryPathInfo(state.store->parseStorePath(info.storePath))->narHash;
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info.lastModified = gitInfo.lastModified;
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return info;
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};
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// This only downloads one revision of the repo, not the entire history.
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if (auto refData = std::get_if<FlakeRef::IsGitHub>(&resolvedRef.data)) {
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return doGit(exportGitHub(state.store, refData->owner, refData->repo, resolvedRef.ref, resolvedRef.rev));
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}
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// This downloads the entire git history.
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else if (auto refData = std::get_if<FlakeRef::IsGit>(&resolvedRef.data)) {
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return doGit(exportGit(state.store, refData->uri, resolvedRef.ref, resolvedRef.rev, "source"));
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}
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else if (auto refData = std::get_if<FlakeRef::IsPath>(&resolvedRef.data)) {
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if (!pathExists(refData->path + "/.git"))
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throw Error("flake '%s' does not reference a Git repository", refData->path);
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return doGit(exportGit(state.store, refData->path, resolvedRef.ref, resolvedRef.rev, "source"));
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}
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else abort();
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}
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static void expectType(EvalState & state, ValueType type,
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Value & value, const Pos & pos)
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{
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@ -204,34 +68,38 @@ static Flake getFlake(EvalState & state, const FlakeRef & originalRef,
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maybeLookupFlake(state,
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lookupInRefMap(refMap, originalRef), allowLookup));
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SourceInfo sourceInfo = fetchInput(state, flakeRef);
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debug("got flake source '%s' with flakeref %s", sourceInfo.storePath, sourceInfo.resolvedRef.to_string());
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auto [sourceInfo, resolvedInput] = flakeRef.input->fetchTree(state.store);
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FlakeRef resolvedRef = sourceInfo.resolvedRef;
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FlakeRef resolvedRef(resolvedInput, flakeRef.subdir);
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debug("got flake source '%s' from flake URL '%s'",
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state.store->printStorePath(sourceInfo.storePath), resolvedRef);
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refMap.push_back({originalRef, resolvedRef});
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refMap.push_back({flakeRef, resolvedRef});
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state.store->parseStorePath(sourceInfo.storePath);
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if (state.allowedPaths)
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state.allowedPaths->insert(state.store->toRealPath(sourceInfo.storePath));
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state.allowedPaths->insert(sourceInfo.actualPath);
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// Guard against symlink attacks.
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Path flakeFile = canonPath(sourceInfo.storePath + "/" + resolvedRef.subdir + "/flake.nix");
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Path realFlakeFile = state.store->toRealPath(flakeFile);
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if (!isInDir(realFlakeFile, state.store->toRealPath(sourceInfo.storePath)))
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throw Error("'flake.nix' file of flake '%s' escapes from '%s'", resolvedRef, sourceInfo.storePath);
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auto flakeFile = canonPath(sourceInfo.actualPath + "/" + resolvedRef.subdir + "/flake.nix");
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if (!isInDir(flakeFile, sourceInfo.actualPath))
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throw Error("'flake.nix' file of flake '%s' escapes from '%s'",
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resolvedRef, state.store->printStorePath(sourceInfo.storePath));
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Flake flake(originalRef, sourceInfo);
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Flake flake {
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.originalRef = originalRef,
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.resolvedRef = resolvedRef,
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.sourceInfo = std::make_shared<fetchers::Tree>(std::move(sourceInfo))
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};
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if (!pathExists(realFlakeFile))
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if (!pathExists(flakeFile))
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throw Error("source tree referenced by '%s' does not contain a '%s/flake.nix' file", resolvedRef, resolvedRef.subdir);
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Value vInfo;
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state.evalFile(realFlakeFile, vInfo, true); // FIXME: symlink attack
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state.evalFile(flakeFile, vInfo, true); // FIXME: symlink attack
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expectType(state, tAttrs, vInfo, Pos(state.symbols.create(realFlakeFile), 0, 0));
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expectType(state, tAttrs, vInfo, Pos(state.symbols.create(flakeFile), 0, 0));
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auto sEdition = state.symbols.create("edition");
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auto sEpoch = state.symbols.create("epoch"); // FIXME: remove soon
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@ -266,12 +134,12 @@ static Flake getFlake(EvalState & state, const FlakeRef & originalRef,
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for (Attr inputAttr : *(*(**inputs).value).attrs) {
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expectType(state, tAttrs, *inputAttr.value, *inputAttr.pos);
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FlakeInput input(FlakeRef(inputAttr.name));
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FlakeInput input(parseFlakeRef(inputAttr.name));
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for (Attr attr : *(inputAttr.value->attrs)) {
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if (attr.name == sUrl || attr.name == sUri) {
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expectType(state, tString, *attr.value, *attr.pos);
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input.ref = std::string(attr.value->string.s);
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input.ref = parseFlakeRef(attr.value->string.s);
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} else if (attr.name == sFlake) {
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expectType(state, tBool, *attr.value, *attr.pos);
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input.isFlake = attr.value->boolean;
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@ -293,7 +161,7 @@ static Flake getFlake(EvalState & state, const FlakeRef & originalRef,
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if (flake.vOutputs->lambda.fun->matchAttrs) {
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for (auto & formal : flake.vOutputs->lambda.fun->formals->formals) {
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if (formal.name != state.sSelf)
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flake.inputs.emplace(formal.name, FlakeInput(FlakeRef(formal.name)));
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flake.inputs.emplace(formal.name, FlakeInput(parseFlakeRef(formal.name)));
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}
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}
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@ -319,27 +187,30 @@ Flake getFlake(EvalState & state, const FlakeRef & originalRef, bool allowLookup
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return getFlake(state, originalRef, allowLookup, refMap);
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}
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static SourceInfo getNonFlake(EvalState & state, const FlakeRef & originalRef,
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bool allowLookup, RefMap & refMap)
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static std::pair<fetchers::Tree, FlakeRef> getNonFlake(
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EvalState & state,
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const FlakeRef & originalRef,
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bool allowLookup,
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RefMap & refMap)
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{
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auto flakeRef = lookupInRefMap(refMap,
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maybeLookupFlake(state,
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lookupInRefMap(refMap, originalRef), allowLookup));
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auto sourceInfo = fetchInput(state, flakeRef);
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debug("got non-flake source '%s' with flakeref %s", sourceInfo.storePath, sourceInfo.resolvedRef.to_string());
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auto [sourceInfo, resolvedInput] = flakeRef.input->fetchTree(state.store);
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FlakeRef resolvedRef = sourceInfo.resolvedRef;
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FlakeRef resolvedRef(resolvedInput, flakeRef.subdir);
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debug("got non-flake source '%s' with flakeref %s",
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state.store->printStorePath(sourceInfo.storePath), resolvedRef);
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refMap.push_back({originalRef, resolvedRef});
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refMap.push_back({flakeRef, resolvedRef});
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state.store->parseStorePath(sourceInfo.storePath);
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if (state.allowedPaths)
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state.allowedPaths->insert(sourceInfo.storePath);
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state.allowedPaths->insert(sourceInfo.actualPath);
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return sourceInfo;
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return std::make_pair(std::move(sourceInfo), resolvedRef);
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}
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bool allowedToWrite(HandleLockFile handle)
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@ -382,9 +253,9 @@ static std::pair<Flake, LockedInput> updateLocks(
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bool topRef)
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{
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LockedInput newEntry(
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flake.sourceInfo.resolvedRef,
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flake.resolvedRef,
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flake.originalRef,
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flake.sourceInfo.narHash);
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flake.sourceInfo->narHash);
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std::vector<std::function<void()>> postponed;
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@ -397,29 +268,29 @@ static std::pair<Flake, LockedInput> updateLocks(
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if (handleLockFile == AllPure || handleLockFile == TopRefUsesRegistries)
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throw Error("cannot update flake input '%s' in pure mode", id);
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auto warn = [&](const SourceInfo & sourceInfo) {
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auto warn = [&](const FlakeRef & resolvedRef, const fetchers::Tree & sourceInfo) {
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if (i == oldEntry.inputs.end())
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printInfo("mapped flake input '%s' to '%s'",
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inputPath2, sourceInfo.resolvedRef);
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inputPath2, resolvedRef);
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else
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printMsg(lvlWarn, "updated flake input '%s' from '%s' to '%s'",
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inputPath2, i->second.originalRef, sourceInfo.resolvedRef);
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inputPath2, i->second.originalRef, resolvedRef);
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};
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if (input.isFlake) {
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auto actualInput = getFlake(state, input.ref,
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allowedToUseRegistries(handleLockFile, false), refMap);
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warn(actualInput.sourceInfo);
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warn(actualInput.resolvedRef, *actualInput.sourceInfo);
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postponed.push_back([&, id{id}, inputPath2, actualInput]() {
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newEntry.inputs.insert_or_assign(id,
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updateLocks(refMap, inputPath2, state, actualInput, handleLockFile, {}, false).second);
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});
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} else {
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auto sourceInfo = getNonFlake(state, input.ref,
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auto [sourceInfo, resolvedRef] = getNonFlake(state, input.ref,
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allowedToUseRegistries(handleLockFile, false), refMap);
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warn(sourceInfo);
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warn(resolvedRef, sourceInfo);
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newEntry.inputs.insert_or_assign(id,
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LockedInput(sourceInfo.resolvedRef, input.ref, sourceInfo.narHash));
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LockedInput(resolvedRef, input.ref, sourceInfo.narHash));
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}
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}
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}
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@ -444,8 +315,7 @@ ResolvedFlake resolveFlake(EvalState & state, const FlakeRef & topRef, HandleLoc
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// If recreateLockFile, start with an empty lockfile
|
||||
// FIXME: symlink attack
|
||||
oldLockFile = LockFile::read(
|
||||
state.store->toRealPath(flake.sourceInfo.storePath)
|
||||
+ "/" + flake.sourceInfo.resolvedRef.subdir + "/flake.lock");
|
||||
flake.sourceInfo->actualPath + "/" + flake.resolvedRef.subdir + "/flake.lock");
|
||||
}
|
||||
|
||||
debug("old lock file: %s", oldLockFile);
|
||||
|
|
@ -459,19 +329,26 @@ ResolvedFlake resolveFlake(EvalState & state, const FlakeRef & topRef, HandleLoc
|
|||
|
||||
if (!(lockFile == oldLockFile)) {
|
||||
if (allowedToWrite(handleLockFile)) {
|
||||
if (auto refData = std::get_if<FlakeRef::IsPath>(&topRef.data)) {
|
||||
if (lockFile.isDirty()) {
|
||||
if (evalSettings.warnDirty)
|
||||
warn("will not write lock file of flake '%s' because it has a dirty input", topRef);
|
||||
if (auto sourcePath = topRef.input->getSourcePath()) {
|
||||
if (!lockFile.isImmutable()) {
|
||||
if (settings.warnDirty)
|
||||
warn("will not write lock file of flake '%s' because it has a mutable input", topRef);
|
||||
} else {
|
||||
lockFile.write(refData->path + (topRef.subdir == "" ? "" : "/" + topRef.subdir) + "/flake.lock");
|
||||
warn("updated lock file of flake '%s'", topRef);
|
||||
|
||||
lockFile.write(*sourcePath + (topRef.subdir == "" ? "" : "/" + topRef.subdir) + "/flake.lock");
|
||||
|
||||
// FIXME: rewriting the lockfile changed the
|
||||
// top-level repo, so we should re-read it.
|
||||
|
||||
#if 0
|
||||
// Hack: Make sure that flake.lock is visible to Git, so it ends up in the Nix store.
|
||||
runProgram("git", true,
|
||||
{ "-C", refData->path, "add",
|
||||
{ "-C", *sourcePath, "add",
|
||||
"--force",
|
||||
"--intent-to-add",
|
||||
(topRef.subdir == "" ? "" : topRef.subdir + "/") + "flake.lock" });
|
||||
#endif
|
||||
}
|
||||
} else
|
||||
warn("cannot write lock file of remote flake '%s'", topRef);
|
||||
|
|
@ -479,7 +356,7 @@ ResolvedFlake resolveFlake(EvalState & state, const FlakeRef & topRef, HandleLoc
|
|||
warn("using updated lock file without writing it to file");
|
||||
}
|
||||
|
||||
return ResolvedFlake(std::move(flake), std::move(lockFile));
|
||||
return ResolvedFlake { .flake = std::move(flake), .lockFile = std::move(lockFile) };
|
||||
}
|
||||
|
||||
void updateLockFile(EvalState & state, const FlakeRef & flakeRef, bool recreateLockFile)
|
||||
|
|
@ -487,17 +364,17 @@ void updateLockFile(EvalState & state, const FlakeRef & flakeRef, bool recreateL
|
|||
resolveFlake(state, flakeRef, recreateLockFile ? RecreateLockFile : UpdateLockFile);
|
||||
}
|
||||
|
||||
static void emitSourceInfoAttrs(EvalState & state, const SourceInfo & sourceInfo, Value & vAttrs)
|
||||
static void emitSourceInfoAttrs(EvalState & state, const fetchers::Tree & sourceInfo, Value & vAttrs)
|
||||
{
|
||||
auto & path = sourceInfo.storePath;
|
||||
assert(state.store->isValidPath(state.store->parseStorePath(path)));
|
||||
mkString(*state.allocAttr(vAttrs, state.sOutPath), path, {path});
|
||||
assert(state.store->isValidPath(sourceInfo.storePath));
|
||||
auto pathS = state.store->printStorePath(sourceInfo.storePath);
|
||||
mkString(*state.allocAttr(vAttrs, state.sOutPath), pathS, {pathS});
|
||||
|
||||
if (sourceInfo.resolvedRef.rev) {
|
||||
if (sourceInfo.rev) {
|
||||
mkString(*state.allocAttr(vAttrs, state.symbols.create("rev")),
|
||||
sourceInfo.resolvedRef.rev->gitRev());
|
||||
sourceInfo.rev->gitRev());
|
||||
mkString(*state.allocAttr(vAttrs, state.symbols.create("shortRev")),
|
||||
sourceInfo.resolvedRef.rev->gitShortRev());
|
||||
sourceInfo.rev->gitShortRev());
|
||||
}
|
||||
|
||||
if (sourceInfo.revCount)
|
||||
|
|
@ -505,8 +382,7 @@ static void emitSourceInfoAttrs(EvalState & state, const SourceInfo & sourceInfo
|
|||
|
||||
if (sourceInfo.lastModified)
|
||||
mkString(*state.allocAttr(vAttrs, state.symbols.create("lastModified")),
|
||||
fmt("%s",
|
||||
std::put_time(std::gmtime(&*sourceInfo.lastModified), "%Y%m%d%H%M%S")));
|
||||
fmt("%s", std::put_time(std::gmtime(&*sourceInfo.lastModified), "%Y%m%d%H%M%S")));
|
||||
}
|
||||
|
||||
struct LazyInput
|
||||
|
|
@ -522,19 +398,17 @@ static void prim_callFlake(EvalState & state, const Pos & pos, Value * * args, V
|
|||
{
|
||||
auto lazyInput = (LazyInput *) args[0]->attrs;
|
||||
|
||||
assert(lazyInput->lockedInput.ref.isImmutable());
|
||||
|
||||
if (lazyInput->isFlake) {
|
||||
auto flake = getFlake(state, lazyInput->lockedInput.ref, false);
|
||||
|
||||
if (flake.sourceInfo.narHash != lazyInput->lockedInput.narHash)
|
||||
if (flake.sourceInfo->narHash != lazyInput->lockedInput.narHash)
|
||||
throw Error("the content hash of flake '%s' doesn't match the hash recorded in the referring lockfile",
|
||||
lazyInput->lockedInput.ref);
|
||||
|
||||
callFlake(state, flake, lazyInput->lockedInput, v);
|
||||
} else {
|
||||
RefMap refMap;
|
||||
auto sourceInfo = getNonFlake(state, lazyInput->lockedInput.ref, false, refMap);
|
||||
auto [sourceInfo, resolvedRef] = getNonFlake(state, lazyInput->lockedInput.ref, false, refMap);
|
||||
|
||||
if (sourceInfo.narHash != lazyInput->lockedInput.narHash)
|
||||
throw Error("the content hash of repository '%s' doesn't match the hash recorded in the referring lockfile",
|
||||
|
|
@ -542,10 +416,11 @@ static void prim_callFlake(EvalState & state, const Pos & pos, Value * * args, V
|
|||
|
||||
state.mkAttrs(v, 8);
|
||||
|
||||
assert(state.store->isValidPath(state.store->parseStorePath(sourceInfo.storePath)));
|
||||
assert(state.store->isValidPath(sourceInfo.storePath));
|
||||
|
||||
mkString(*state.allocAttr(v, state.sOutPath),
|
||||
sourceInfo.storePath, {sourceInfo.storePath});
|
||||
auto pathS = state.store->printStorePath(sourceInfo.storePath);
|
||||
|
||||
mkString(*state.allocAttr(v, state.sOutPath), pathS, {pathS});
|
||||
|
||||
emitSourceInfoAttrs(state, sourceInfo, v);
|
||||
|
||||
|
|
@ -580,7 +455,7 @@ void callFlake(EvalState & state,
|
|||
|
||||
auto & vSourceInfo = *state.allocValue();
|
||||
state.mkAttrs(vSourceInfo, 8);
|
||||
emitSourceInfoAttrs(state, flake.sourceInfo, vSourceInfo);
|
||||
emitSourceInfoAttrs(state, *flake.sourceInfo, vSourceInfo);
|
||||
vSourceInfo.attrs->sort();
|
||||
|
||||
vInputs.attrs->push_back(Attr(state.sSelf, &vRes));
|
||||
|
|
@ -614,70 +489,12 @@ void callFlake(EvalState & state,
|
|||
// This function is exposed to be used in nix files.
|
||||
static void prim_getFlake(EvalState & state, const Pos & pos, Value * * args, Value & v)
|
||||
{
|
||||
callFlake(state, resolveFlake(state, state.forceStringNoCtx(*args[0], pos),
|
||||
callFlake(state, resolveFlake(state, parseFlakeRef(state.forceStringNoCtx(*args[0], pos)),
|
||||
evalSettings.pureEval ? AllPure : UseUpdatedLockFile), v);
|
||||
}
|
||||
|
||||
static RegisterPrimOp r2("getFlake", 1, prim_getFlake);
|
||||
|
||||
void gitCloneFlake(FlakeRef flakeRef, EvalState & state, Registries registries, const Path & destDir)
|
||||
{
|
||||
flakeRef = lookupFlake(state, flakeRef, registries);
|
||||
|
||||
std::string uri;
|
||||
|
||||
Strings args = {"clone"};
|
||||
|
||||
if (auto refData = std::get_if<FlakeRef::IsGitHub>(&flakeRef.data)) {
|
||||
uri = "git@github.com:" + refData->owner + "/" + refData->repo + ".git";
|
||||
args.push_back(uri);
|
||||
if (flakeRef.ref) {
|
||||
args.push_back("--branch");
|
||||
args.push_back(*flakeRef.ref);
|
||||
}
|
||||
} else if (auto refData = std::get_if<FlakeRef::IsGit>(&flakeRef.data)) {
|
||||
args.push_back(refData->uri);
|
||||
if (flakeRef.ref) {
|
||||
args.push_back("--branch");
|
||||
args.push_back(*flakeRef.ref);
|
||||
}
|
||||
}
|
||||
|
||||
if (destDir != "")
|
||||
args.push_back(destDir);
|
||||
|
||||
runProgram("git", true, args);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
std::shared_ptr<flake::FlakeRegistry> EvalState::getGlobalFlakeRegistry()
|
||||
{
|
||||
std::call_once(_globalFlakeRegistryInit, [&]() {
|
||||
auto path = evalSettings.flakeRegistry;
|
||||
|
||||
if (!hasPrefix(path, "/")) {
|
||||
CachedDownloadRequest request(evalSettings.flakeRegistry);
|
||||
request.name = "flake-registry.json";
|
||||
request.gcRoot = true;
|
||||
path = getDownloader()->downloadCached(store, request).path;
|
||||
}
|
||||
|
||||
_globalFlakeRegistry = readRegistry(path);
|
||||
});
|
||||
|
||||
return _globalFlakeRegistry;
|
||||
}
|
||||
|
||||
// This always returns a vector with flakeReg, userReg, globalReg.
|
||||
// If one of them doesn't exist, the registry is left empty but does exist.
|
||||
const Registries EvalState::getFlakeRegistries()
|
||||
{
|
||||
Registries registries;
|
||||
registries.push_back(getFlagRegistry(registryOverrides));
|
||||
registries.push_back(getUserRegistry());
|
||||
registries.push_back(getGlobalFlakeRegistry());
|
||||
return registries;
|
||||
}
|
||||
|
||||
Fingerprint ResolvedFlake::getFingerprint() const
|
||||
|
|
@ -687,10 +504,12 @@ Fingerprint ResolvedFlake::getFingerprint() const
|
|||
// flake.sourceInfo.storePath for the fingerprint.
|
||||
return hashString(htSHA256,
|
||||
fmt("%s;%d;%d;%s",
|
||||
flake.sourceInfo.storePath,
|
||||
flake.sourceInfo.revCount.value_or(0),
|
||||
flake.sourceInfo.lastModified.value_or(0),
|
||||
flake.sourceInfo->storePath.to_string(),
|
||||
flake.sourceInfo->revCount.value_or(0),
|
||||
flake.sourceInfo->lastModified.value_or(0),
|
||||
lockFile));
|
||||
}
|
||||
|
||||
Flake::~Flake() { }
|
||||
|
||||
}
|
||||
|
|
|
|||
|
|
@ -9,25 +9,10 @@ namespace nix {
|
|||
struct Value;
|
||||
class EvalState;
|
||||
|
||||
namespace fetchers { struct Tree; }
|
||||
|
||||
namespace flake {
|
||||
|
||||
static const size_t FLAG_REGISTRY = 0;
|
||||
static const size_t USER_REGISTRY = 1;
|
||||
static const size_t GLOBAL_REGISTRY = 2;
|
||||
|
||||
struct FlakeRegistry
|
||||
{
|
||||
std::map<FlakeRef, FlakeRef> entries;
|
||||
};
|
||||
|
||||
typedef std::vector<std::shared_ptr<FlakeRegistry>> Registries;
|
||||
|
||||
std::shared_ptr<FlakeRegistry> readRegistry(const Path &);
|
||||
|
||||
void writeRegistry(const FlakeRegistry &, const Path &);
|
||||
|
||||
Path getUserRegistryPath();
|
||||
|
||||
enum HandleLockFile : unsigned int
|
||||
{ AllPure // Everything is handled 100% purely
|
||||
, TopRefUsesRegistries // The top FlakeRef uses the registries, apart from that, everything happens 100% purely
|
||||
|
|
@ -37,27 +22,6 @@ enum HandleLockFile : unsigned int
|
|||
, UseNewLockFile // `RecreateLockFile` without writing to file
|
||||
};
|
||||
|
||||
struct SourceInfo
|
||||
{
|
||||
// Immutable flakeref that this source tree was obtained from.
|
||||
FlakeRef resolvedRef;
|
||||
|
||||
Path storePath;
|
||||
|
||||
// Number of ancestors of the most recent commit.
|
||||
std::optional<uint64_t> revCount;
|
||||
|
||||
// NAR hash of the store path.
|
||||
Hash narHash;
|
||||
|
||||
// A stable timestamp of this source tree. For Git and GitHub
|
||||
// flakes, the commit date (not author date!) of the most recent
|
||||
// commit.
|
||||
std::optional<time_t> lastModified;
|
||||
|
||||
SourceInfo(const FlakeRef & resolvRef) : resolvedRef(resolvRef) {};
|
||||
};
|
||||
|
||||
struct FlakeInput
|
||||
{
|
||||
FlakeRef ref;
|
||||
|
|
@ -68,14 +32,13 @@ struct FlakeInput
|
|||
struct Flake
|
||||
{
|
||||
FlakeRef originalRef;
|
||||
FlakeRef resolvedRef;
|
||||
std::string description;
|
||||
SourceInfo sourceInfo;
|
||||
std::shared_ptr<const fetchers::Tree> sourceInfo;
|
||||
std::map<FlakeId, FlakeInput> inputs;
|
||||
Value * vOutputs; // FIXME: gc
|
||||
unsigned int edition;
|
||||
|
||||
Flake(const FlakeRef & origRef, const SourceInfo & sourceInfo)
|
||||
: originalRef(origRef), sourceInfo(sourceInfo) {};
|
||||
~Flake();
|
||||
};
|
||||
|
||||
Flake getFlake(EvalState & state, const FlakeRef & flakeRef, bool allowLookup);
|
||||
|
|
@ -88,9 +51,6 @@ struct ResolvedFlake
|
|||
Flake flake;
|
||||
LockFile lockFile;
|
||||
|
||||
ResolvedFlake(Flake && flake, LockFile && lockFile)
|
||||
: flake(flake), lockFile(lockFile) {}
|
||||
|
||||
Fingerprint getFingerprint() const;
|
||||
};
|
||||
|
||||
|
|
@ -107,8 +67,6 @@ void callFlake(EvalState & state,
|
|||
|
||||
void updateLockFile(EvalState &, const FlakeRef & flakeRef, bool recreateLockFile);
|
||||
|
||||
void gitCloneFlake(FlakeRef flakeRef, EvalState &, Registries, const Path & destDir);
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,239 +1,33 @@
|
|||
#include "flakeref.hh"
|
||||
#include "store-api.hh"
|
||||
|
||||
#include <regex>
|
||||
#include "fetchers/parse.hh"
|
||||
#include "fetchers/fetchers.hh"
|
||||
#include "fetchers/registry.hh"
|
||||
#include "fetchers/regex.hh"
|
||||
|
||||
namespace nix {
|
||||
|
||||
// A Git ref (i.e. branch or tag name).
|
||||
const static std::string refRegex = "[a-zA-Z0-9][a-zA-Z0-9_.-]*"; // FIXME: check
|
||||
|
||||
// A Git revision (a SHA-1 commit hash).
|
||||
const static std::string revRegexS = "[0-9a-fA-F]{40}";
|
||||
std::regex revRegex(revRegexS, std::regex::ECMAScript);
|
||||
|
||||
// A Git ref or revision.
|
||||
const static std::string revOrRefRegex = "(?:(" + revRegexS + ")|(" + refRegex + "))";
|
||||
|
||||
// A rev ("e72daba8250068216d79d2aeef40d4d95aff6666"), or a ref
|
||||
// optionally followed by a rev (e.g. "master" or
|
||||
// "master/e72daba8250068216d79d2aeef40d4d95aff6666").
|
||||
const static std::string refAndOrRevRegex = "(?:(" + revRegexS + ")|(?:(" + refRegex + ")(?:/(" + revRegexS + "))?))";
|
||||
|
||||
const static std::string flakeId = "[a-zA-Z][a-zA-Z0-9_-]*";
|
||||
|
||||
// GitHub references.
|
||||
const static std::string ownerRegex = "[a-zA-Z][a-zA-Z0-9_-]*";
|
||||
const static std::string repoRegex = "[a-zA-Z][a-zA-Z0-9_-]*";
|
||||
|
||||
// URI stuff.
|
||||
const static std::string schemeRegex = "[a-z+]+";
|
||||
const static std::string authorityRegex = "[a-zA-Z0-9._~-]*";
|
||||
const static std::string segmentRegex = "[a-zA-Z0-9._~-]+";
|
||||
const static std::string pathRegex = "/?" + segmentRegex + "(?:/" + segmentRegex + ")*";
|
||||
|
||||
#if 0
|
||||
// 'dir' path elements cannot start with a '.'. We also reject
|
||||
// potentially dangerous characters like ';'.
|
||||
const static std::string subDirElemRegex = "(?:[a-zA-Z0-9_-]+[a-zA-Z0-9._-]*)";
|
||||
const static std::string subDirRegex = subDirElemRegex + "(?:/" + subDirElemRegex + ")*";
|
||||
#endif
|
||||
|
||||
|
||||
FlakeRef::FlakeRef(const std::string & uri_, bool allowRelative)
|
||||
{
|
||||
// FIXME: could combine this into one regex.
|
||||
|
||||
static std::regex flakeRegex(
|
||||
"(?:flake:)?(" + flakeId + ")(?:/(?:" + refAndOrRevRegex + "))?",
|
||||
std::regex::ECMAScript);
|
||||
|
||||
static std::regex githubRegex(
|
||||
"github:(" + ownerRegex + ")/(" + repoRegex + ")(?:/" + revOrRefRegex + ")?",
|
||||
std::regex::ECMAScript);
|
||||
|
||||
static std::regex uriRegex(
|
||||
"((" + schemeRegex + "):" +
|
||||
"(?://(" + authorityRegex + "))?" +
|
||||
"(" + pathRegex + "))",
|
||||
std::regex::ECMAScript);
|
||||
|
||||
static std::regex refRegex2(refRegex, std::regex::ECMAScript);
|
||||
|
||||
static std::regex subDirRegex2(subDirRegex, std::regex::ECMAScript);
|
||||
|
||||
auto [uri2, params] = splitUriAndParams(uri_);
|
||||
std::string uri(uri2);
|
||||
|
||||
auto handleSubdir = [&](const std::string & name, const std::string & value) {
|
||||
if (name == "dir") {
|
||||
if (value != "" && !std::regex_match(value, subDirRegex2))
|
||||
throw BadFlakeRef("flake '%s' has invalid subdirectory '%s'", uri, value);
|
||||
subdir = value;
|
||||
return true;
|
||||
} else
|
||||
return false;
|
||||
};
|
||||
|
||||
auto handleGitParams = [&](const std::string & name, const std::string & value) {
|
||||
if (name == "rev") {
|
||||
if (!std::regex_match(value, revRegex))
|
||||
throw BadFlakeRef("invalid Git revision '%s'", value);
|
||||
rev = Hash(value, htSHA1);
|
||||
} else if (name == "ref") {
|
||||
if (!std::regex_match(value, refRegex2))
|
||||
throw BadFlakeRef("invalid Git ref '%s'", value);
|
||||
ref = value;
|
||||
} else if (handleSubdir(name, value))
|
||||
;
|
||||
else return false;
|
||||
return true;
|
||||
};
|
||||
|
||||
std::smatch match;
|
||||
if (std::regex_match(uri, match, flakeRegex)) {
|
||||
IsId d;
|
||||
d.id = match[1];
|
||||
if (match[2].matched)
|
||||
rev = Hash(match[2], htSHA1);
|
||||
else if (match[3].matched) {
|
||||
ref = match[3];
|
||||
if (match[4].matched)
|
||||
rev = Hash(match[4], htSHA1);
|
||||
}
|
||||
data = d;
|
||||
}
|
||||
|
||||
else if (std::regex_match(uri, match, githubRegex)) {
|
||||
IsGitHub d;
|
||||
d.owner = match[1];
|
||||
d.repo = match[2];
|
||||
if (match[3].matched)
|
||||
rev = Hash(match[3], htSHA1);
|
||||
else if (match[4].matched) {
|
||||
ref = match[4];
|
||||
}
|
||||
for (auto & param : params) {
|
||||
if (handleSubdir(param.first, param.second))
|
||||
;
|
||||
else
|
||||
throw BadFlakeRef("invalid Git flakeref parameter '%s', in '%s'", param.first, uri);
|
||||
}
|
||||
data = d;
|
||||
}
|
||||
|
||||
else if (std::regex_match(uri, match, uriRegex)) {
|
||||
auto & scheme = match[2];
|
||||
if (scheme == "git" ||
|
||||
scheme == "git+http" ||
|
||||
scheme == "git+https" ||
|
||||
scheme == "git+ssh" ||
|
||||
scheme == "git+file" ||
|
||||
scheme == "file")
|
||||
{
|
||||
IsGit d;
|
||||
d.uri = match[1];
|
||||
for (auto & param : params) {
|
||||
if (handleGitParams(param.first, param.second))
|
||||
;
|
||||
else
|
||||
// FIXME: should probably pass through unknown parameters
|
||||
throw BadFlakeRef("invalid Git flakeref parameter '%s', in '%s'", param.first, uri);
|
||||
}
|
||||
if (rev && !ref)
|
||||
throw BadFlakeRef("flake URI '%s' lacks a Git ref", uri);
|
||||
data = d;
|
||||
} else
|
||||
throw BadFlakeRef("unsupported URI scheme '%s' in flake reference '%s'", scheme, uri);
|
||||
}
|
||||
|
||||
else if ((hasPrefix(uri, "/") || (allowRelative && (hasPrefix(uri, "./") || hasPrefix(uri, "../") || uri == ".")))
|
||||
&& uri.find(':') == std::string::npos)
|
||||
{
|
||||
IsPath d;
|
||||
if (allowRelative) {
|
||||
d.path = absPath(uri);
|
||||
try {
|
||||
if (!S_ISDIR(lstat(d.path).st_mode))
|
||||
throw MissingFlake("path '%s' is not a flake (sub)directory", d.path);
|
||||
} catch (SysError & e) {
|
||||
if (e.errNo == ENOENT || e.errNo == EISDIR)
|
||||
throw MissingFlake("flake '%s' does not exist", d.path);
|
||||
throw;
|
||||
}
|
||||
while (true) {
|
||||
if (pathExists(d.path + "/.git")) break;
|
||||
subdir = std::string(baseNameOf(d.path)) + (subdir.empty() ? "" : "/" + subdir);
|
||||
d.path = dirOf(d.path);
|
||||
if (d.path == "/")
|
||||
throw MissingFlake("path '%s' is not a flake (because it does not reference a Git repository)", uri);
|
||||
}
|
||||
} else
|
||||
d.path = canonPath(uri);
|
||||
data = d;
|
||||
for (auto & param : params) {
|
||||
if (handleGitParams(param.first, param.second))
|
||||
;
|
||||
else
|
||||
throw BadFlakeRef("invalid Git flakeref parameter '%s', in '%s'", param.first, uri);
|
||||
}
|
||||
}
|
||||
|
||||
else
|
||||
throw BadFlakeRef("'%s' is not a valid flake reference", uri);
|
||||
}
|
||||
|
||||
std::string FlakeRef::to_string() const
|
||||
{
|
||||
std::string string;
|
||||
bool first = true;
|
||||
return input->to_string();
|
||||
}
|
||||
|
||||
auto addParam =
|
||||
[&](const std::string & name, std::string value) {
|
||||
string += first ? '?' : '&';
|
||||
first = false;
|
||||
string += name;
|
||||
string += '=';
|
||||
string += value; // FIXME: escaping
|
||||
};
|
||||
bool FlakeRef::isDirect() const
|
||||
{
|
||||
return input->isDirect();
|
||||
}
|
||||
|
||||
if (auto refData = std::get_if<FlakeRef::IsId>(&data)) {
|
||||
string = refData->id;
|
||||
if (ref) string += '/' + *ref;
|
||||
if (rev) string += '/' + rev->gitRev();
|
||||
}
|
||||
|
||||
else if (auto refData = std::get_if<FlakeRef::IsPath>(&data)) {
|
||||
string = refData->path;
|
||||
if (ref) addParam("ref", *ref);
|
||||
if (rev) addParam("rev", rev->gitRev());
|
||||
if (subdir != "") addParam("dir", subdir);
|
||||
}
|
||||
|
||||
else if (auto refData = std::get_if<FlakeRef::IsGitHub>(&data)) {
|
||||
assert(!(ref && rev));
|
||||
string = "github:" + refData->owner + "/" + refData->repo;
|
||||
if (ref) { string += '/'; string += *ref; }
|
||||
if (rev) { string += '/'; string += rev->gitRev(); }
|
||||
if (subdir != "") addParam("dir", subdir);
|
||||
}
|
||||
|
||||
else if (auto refData = std::get_if<FlakeRef::IsGit>(&data)) {
|
||||
assert(!rev || ref);
|
||||
string = refData->uri;
|
||||
|
||||
if (ref) {
|
||||
addParam("ref", *ref);
|
||||
if (rev)
|
||||
addParam("rev", rev->gitRev());
|
||||
}
|
||||
|
||||
if (subdir != "") addParam("dir", subdir);
|
||||
}
|
||||
|
||||
else abort();
|
||||
|
||||
assert(FlakeRef(string) == *this);
|
||||
|
||||
return string;
|
||||
bool FlakeRef::isImmutable() const
|
||||
{
|
||||
return input->isImmutable();
|
||||
}
|
||||
|
||||
std::ostream & operator << (std::ostream & str, const FlakeRef & flakeRef)
|
||||
|
|
@ -242,42 +36,130 @@ std::ostream & operator << (std::ostream & str, const FlakeRef & flakeRef)
|
|||
return str;
|
||||
}
|
||||
|
||||
bool FlakeRef::isImmutable() const
|
||||
bool FlakeRef::operator==(const FlakeRef & other) const
|
||||
{
|
||||
return (bool) rev;
|
||||
return *input == *other.input && subdir == other.subdir;
|
||||
}
|
||||
|
||||
FlakeRef FlakeRef::baseRef() const // Removes the ref and rev from a FlakeRef.
|
||||
FlakeRef FlakeRef::resolve(ref<Store> store) const
|
||||
{
|
||||
FlakeRef result(*this);
|
||||
result.ref = std::nullopt;
|
||||
result.rev = std::nullopt;
|
||||
return result;
|
||||
return FlakeRef(lookupInRegistries(store, input), subdir);
|
||||
}
|
||||
|
||||
bool FlakeRef::contains(const FlakeRef & other) const
|
||||
FlakeRef parseFlakeRef(
|
||||
const std::string & url, const std::optional<Path> & baseDir)
|
||||
{
|
||||
if (!(data == other.data))
|
||||
return false;
|
||||
|
||||
if (ref && ref != other.ref)
|
||||
return false;
|
||||
|
||||
if (rev && rev != other.rev)
|
||||
return false;
|
||||
|
||||
if (subdir != other.subdir)
|
||||
return false;
|
||||
|
||||
return true;
|
||||
auto [flakeRef, fragment] = parseFlakeRefWithFragment(url, baseDir);
|
||||
if (fragment != "")
|
||||
throw Error("unexpected fragment '%s' in flake reference '%s'", fragment, url);
|
||||
return flakeRef;
|
||||
}
|
||||
|
||||
std::optional<FlakeRef> parseFlakeRef(
|
||||
const std::string & uri, bool allowRelative)
|
||||
std::optional<FlakeRef> maybeParseFlakeRef(
|
||||
const std::string & url, const std::optional<Path> & baseDir)
|
||||
{
|
||||
try {
|
||||
return FlakeRef(uri, allowRelative);
|
||||
} catch (BadFlakeRef & e) {
|
||||
return parseFlakeRef(url, baseDir);
|
||||
} catch (Error &) {
|
||||
return {};
|
||||
}
|
||||
}
|
||||
|
||||
std::pair<FlakeRef, std::string> parseFlakeRefWithFragment(
|
||||
const std::string & url, const std::optional<Path> & baseDir)
|
||||
{
|
||||
using namespace fetchers;
|
||||
|
||||
static std::regex pathUrlRegex(
|
||||
"(" + pathRegex + "/?)"
|
||||
+ "(?:\\?(" + queryRegex + "))?"
|
||||
+ "(?:#(" + queryRegex + "))?",
|
||||
std::regex::ECMAScript);
|
||||
|
||||
static std::regex flakeRegex(
|
||||
"((" + flakeId + ")(?:/(?:" + refAndOrRevRegex + "))?)"
|
||||
+ "(?:#(" + queryRegex + "))?",
|
||||
std::regex::ECMAScript);
|
||||
|
||||
std::smatch match;
|
||||
|
||||
/* Check if 'url' is a flake ID. This is an abbreviated syntax for
|
||||
'flake:<flake-id>?ref=<ref>&rev=<rev>'. */
|
||||
|
||||
if (std::regex_match(url, match, flakeRegex)) {
|
||||
auto parsedURL = ParsedURL{
|
||||
.url = url,
|
||||
.base = "flake:" + std::string(match[1]),
|
||||
.scheme = "flake",
|
||||
.authority = "",
|
||||
.path = match[1],
|
||||
.fragment = percentDecode(std::string(match[6]))
|
||||
};
|
||||
|
||||
return std::make_pair(
|
||||
FlakeRef(inputFromURL(parsedURL), ""),
|
||||
parsedURL.fragment);
|
||||
}
|
||||
|
||||
/* Check if 'url' is a path (either absolute or relative to
|
||||
'baseDir'). If so, search upward to the root of the repo
|
||||
(i.e. the directory containing .git). */
|
||||
|
||||
else if (std::regex_match(url, match, pathUrlRegex)) {
|
||||
std::string path = match[1];
|
||||
if (!baseDir && !hasPrefix(path, "/"))
|
||||
throw BadURL("flake reference '%s' is not an absolute path", url);
|
||||
path = absPath(path, baseDir, true);
|
||||
|
||||
auto flakeRoot = path;
|
||||
std::string subdir;
|
||||
|
||||
while (true) {
|
||||
if (pathExists(flakeRoot + "/.git")) break;
|
||||
subdir = std::string(baseNameOf(flakeRoot)) + (subdir.empty() ? "" : "/" + subdir);
|
||||
flakeRoot = dirOf(flakeRoot);
|
||||
if (flakeRoot == "/")
|
||||
throw BadURL("path '%s' is not a flake (because it does not reference a Git repository)", path);
|
||||
}
|
||||
|
||||
auto base = std::string("git+file://") + flakeRoot;
|
||||
|
||||
auto parsedURL = ParsedURL{
|
||||
.url = base, // FIXME
|
||||
.base = base,
|
||||
.scheme = "git+file",
|
||||
.authority = "",
|
||||
.path = flakeRoot,
|
||||
.query = decodeQuery(match[2]),
|
||||
.fragment = percentDecode(std::string(match[3]))
|
||||
};
|
||||
|
||||
if (subdir != "") {
|
||||
if (parsedURL.query.count("subdir"))
|
||||
throw Error("flake URL '%s' has an inconsistent 'subdir' parameter", url);
|
||||
parsedURL.query.insert_or_assign("subdir", subdir);
|
||||
}
|
||||
|
||||
return std::make_pair(
|
||||
FlakeRef(inputFromURL(parsedURL), get(parsedURL.query, "subdir").value_or("")),
|
||||
parsedURL.fragment);
|
||||
}
|
||||
|
||||
else {
|
||||
auto parsedURL = parseURL(url);
|
||||
return std::make_pair(
|
||||
FlakeRef(inputFromURL(parsedURL), get(parsedURL.query, "subdir").value_or("")),
|
||||
parsedURL.fragment);
|
||||
}
|
||||
}
|
||||
|
||||
std::optional<std::pair<FlakeRef, std::string>> maybeParseFlakeRefWithFragment(
|
||||
const std::string & url, const std::optional<Path> & baseDir)
|
||||
{
|
||||
try {
|
||||
return parseFlakeRefWithFragment(url, baseDir);
|
||||
} catch (Error & e) {
|
||||
printError("FOO: %s", e.what());
|
||||
return {};
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -7,194 +7,52 @@
|
|||
|
||||
namespace nix {
|
||||
|
||||
/* Flake references are a URI-like syntax to specify a flake.
|
||||
class Store;
|
||||
|
||||
Examples:
|
||||
|
||||
* <flake-id>(/rev-or-ref(/rev)?)?
|
||||
|
||||
Look up a flake by ID in the flake lock file or in the flake
|
||||
registry. These must specify an actual location for the flake
|
||||
using the formats listed below. Note that in pure evaluation
|
||||
mode, the flake registry is empty.
|
||||
|
||||
Optionally, the rev or ref from the dereferenced flake can be
|
||||
overriden. For example,
|
||||
|
||||
nixpkgs/19.09
|
||||
|
||||
uses the "19.09" branch of the nixpkgs' flake GitHub repository,
|
||||
while
|
||||
|
||||
nixpkgs/98a2a5b5370c1e2092d09cb38b9dcff6d98a109f
|
||||
|
||||
uses the specified revision. For Git (rather than GitHub)
|
||||
repositories, both the rev and ref must be given, e.g.
|
||||
|
||||
nixpkgs/19.09/98a2a5b5370c1e2092d09cb38b9dcff6d98a109f
|
||||
|
||||
* github:<owner>/<repo>(/<rev-or-ref>)?
|
||||
|
||||
A repository on GitHub. These differ from Git references in that
|
||||
they're downloaded in a efficient way (via the tarball mechanism)
|
||||
and that they support downloading a specific revision without
|
||||
specifying a branch. <rev-or-ref> is either a commit hash ("rev")
|
||||
or a branch or tag name ("ref"). The default is: "master" if none
|
||||
is specified. Note that in pure evaluation mode, a commit hash
|
||||
must be used.
|
||||
|
||||
Flakes fetched in this manner expose "rev" and "lastModified"
|
||||
attributes, but not "revCount".
|
||||
|
||||
Examples:
|
||||
|
||||
github:edolstra/dwarffs
|
||||
github:edolstra/dwarffs/unstable
|
||||
github:edolstra/dwarffs/41c0c1bf292ea3ac3858ff393b49ca1123dbd553
|
||||
|
||||
* git+https://<server>/<path>(\?attr(&attr)*)?
|
||||
git+ssh://<server>/<path>(\?attr(&attr)*)?
|
||||
git://<server>/<path>(\?attr(&attr)*)?
|
||||
file:///<path>(\?attr(&attr)*)?
|
||||
|
||||
where 'attr' is one of:
|
||||
rev=<rev>
|
||||
ref=<ref>
|
||||
|
||||
A Git repository fetched through https. The default for "ref" is
|
||||
"master".
|
||||
|
||||
Examples:
|
||||
|
||||
git+https://example.org/my/repo.git
|
||||
git+https://example.org/my/repo.git?ref=release-1.2.3
|
||||
git+https://example.org/my/repo.git?rev=e72daba8250068216d79d2aeef40d4d95aff6666
|
||||
git://github.com/edolstra/dwarffs.git?ref=flake&rev=2efca4bc9da70fb001b26c3dc858c6397d3c4817
|
||||
|
||||
* /path(\?attr(&attr)*)?
|
||||
|
||||
Like file://path, but if no "ref" or "rev" is specified, the
|
||||
(possibly dirty) working tree will be used. Using a working tree
|
||||
is not allowed in pure evaluation mode.
|
||||
|
||||
Examples:
|
||||
|
||||
/path/to/my/repo
|
||||
/path/to/my/repo?ref=develop
|
||||
/path/to/my/repo?rev=e72daba8250068216d79d2aeef40d4d95aff6666
|
||||
|
||||
* https://<server>/<path>.tar.xz(?hash=<sri-hash>)
|
||||
file:///<path>.tar.xz(?hash=<sri-hash>)
|
||||
|
||||
A flake distributed as a tarball. In pure evaluation mode, an SRI
|
||||
hash is mandatory. It exposes a "lastModified" attribute, being
|
||||
the newest file inside the tarball.
|
||||
|
||||
Example:
|
||||
|
||||
https://releases.nixos.org/nixos/unstable/nixos-19.03pre167858.f2a1a4e93be/nixexprs.tar.xz
|
||||
https://releases.nixos.org/nixos/unstable/nixos-19.03pre167858.f2a1a4e93be/nixexprs.tar.xz?hash=sha256-56bbc099995ea8581ead78f22832fee7dbcb0a0b6319293d8c2d0aef5379397c
|
||||
|
||||
Note: currently, there can be only one flake per Git repository, and
|
||||
it must be at top-level. In the future, we may want to add a field
|
||||
(e.g. "dir=<dir>") to specify a subdirectory inside the repository.
|
||||
*/
|
||||
namespace fetchers { struct Input; }
|
||||
|
||||
typedef std::string FlakeId;
|
||||
typedef std::string FlakeUri;
|
||||
|
||||
struct FlakeRef
|
||||
{
|
||||
struct IsId
|
||||
std::shared_ptr<const fetchers::Input> input;
|
||||
|
||||
Path subdir;
|
||||
|
||||
bool operator==(const FlakeRef & other) const;
|
||||
|
||||
FlakeRef(const std::shared_ptr<const fetchers::Input> & input, const Path & subdir)
|
||||
: input(input), subdir(subdir)
|
||||
{
|
||||
FlakeId id;
|
||||
bool operator<(const IsId & b) const { return id < b.id; };
|
||||
bool operator==(const IsId & b) const { return id == b.id; };
|
||||
};
|
||||
|
||||
struct IsGitHub {
|
||||
std::string owner, repo;
|
||||
bool operator<(const IsGitHub & b) const {
|
||||
return std::make_tuple(owner, repo) < std::make_tuple(b.owner, b.repo);
|
||||
}
|
||||
bool operator==(const IsGitHub & b) const {
|
||||
return owner == b.owner && repo == b.repo;
|
||||
}
|
||||
};
|
||||
|
||||
// Git, Tarball
|
||||
struct IsGit
|
||||
{
|
||||
std::string uri;
|
||||
bool operator<(const IsGit & b) const { return uri < b.uri; }
|
||||
bool operator==(const IsGit & b) const { return uri == b.uri; }
|
||||
};
|
||||
|
||||
struct IsPath
|
||||
{
|
||||
Path path;
|
||||
bool operator<(const IsPath & b) const { return path < b.path; }
|
||||
bool operator==(const IsPath & b) const { return path == b.path; }
|
||||
};
|
||||
|
||||
// Git, Tarball
|
||||
|
||||
std::variant<IsId, IsGitHub, IsGit, IsPath> data;
|
||||
|
||||
std::optional<std::string> ref;
|
||||
std::optional<Hash> rev;
|
||||
Path subdir = ""; // This is a relative path pointing at the flake.nix file's directory, relative to the git root.
|
||||
|
||||
bool operator<(const FlakeRef & flakeRef) const
|
||||
{
|
||||
return std::make_tuple(data, ref, rev, subdir) <
|
||||
std::make_tuple(flakeRef.data, flakeRef.ref, flakeRef.rev, subdir);
|
||||
assert(input);
|
||||
}
|
||||
|
||||
bool operator==(const FlakeRef & flakeRef) const
|
||||
{
|
||||
return std::make_tuple(data, ref, rev, subdir) ==
|
||||
std::make_tuple(flakeRef.data, flakeRef.ref, flakeRef.rev, flakeRef.subdir);
|
||||
}
|
||||
|
||||
// Parse a flake URI.
|
||||
FlakeRef(const std::string & uri, bool allowRelative = false);
|
||||
|
||||
// FIXME: change to operator <<.
|
||||
std::string to_string() const;
|
||||
|
||||
/* Check whether this is a "direct" flake reference, that is, not
|
||||
a flake ID, which requires a lookup in the flake registry. */
|
||||
bool isDirect() const
|
||||
{
|
||||
return !std::get_if<FlakeRef::IsId>(&data);
|
||||
}
|
||||
bool isDirect() const;
|
||||
|
||||
/* Check whether this is an "immutable" flake reference, that is,
|
||||
one that contains a commit hash or content hash. */
|
||||
bool isImmutable() const;
|
||||
|
||||
FlakeRef baseRef() const;
|
||||
|
||||
bool isDirty() const
|
||||
{
|
||||
return std::get_if<FlakeRef::IsPath>(&data)
|
||||
&& rev == Hash(rev->type);
|
||||
}
|
||||
|
||||
/* Return true if 'other' is not less specific than 'this'. For
|
||||
example, 'nixpkgs' contains 'nixpkgs/release-19.03', and both
|
||||
'nixpkgs' and 'nixpkgs/release-19.03' contain
|
||||
'nixpkgs/release-19.03/<hash>'. */
|
||||
bool contains(const FlakeRef & other) const;
|
||||
FlakeRef resolve(ref<Store> store) const;
|
||||
};
|
||||
|
||||
std::ostream & operator << (std::ostream & str, const FlakeRef & flakeRef);
|
||||
|
||||
MakeError(BadFlakeRef, Error);
|
||||
MakeError(MissingFlake, BadFlakeRef);
|
||||
FlakeRef parseFlakeRef(
|
||||
const std::string & url, const std::optional<Path> & baseDir = {});
|
||||
|
||||
std::optional<FlakeRef> parseFlakeRef(
|
||||
const std::string & uri, bool allowRelative = false);
|
||||
std::optional<FlakeRef> maybeParseFlake(
|
||||
const std::string & url, const std::optional<Path> & baseDir = {});
|
||||
|
||||
std::pair<FlakeRef, std::string> parseFlakeRefWithFragment(
|
||||
const std::string & url, const std::optional<Path> & baseDir = {});
|
||||
|
||||
std::optional<std::pair<FlakeRef, std::string>> maybeParseFlakeRefWithFragment(
|
||||
const std::string & url, const std::optional<Path> & baseDir = {});
|
||||
|
||||
}
|
||||
|
|
|
|||
|
|
@ -7,8 +7,8 @@ namespace nix::flake {
|
|||
|
||||
LockedInput::LockedInput(const nlohmann::json & json)
|
||||
: LockedInputs(json)
|
||||
, ref(json.value("url", json.value("uri", "")))
|
||||
, originalRef(json.value("originalUrl", json.value("originalUri", "")))
|
||||
, ref(parseFlakeRef(json.value("url", json.value("uri", ""))))
|
||||
, originalRef(parseFlakeRef(json.value("originalUrl", json.value("originalUri", ""))))
|
||||
, narHash(Hash((std::string) json["narHash"]))
|
||||
{
|
||||
if (!ref.isImmutable())
|
||||
|
|
@ -47,12 +47,12 @@ nlohmann::json LockedInputs::toJson() const
|
|||
return json;
|
||||
}
|
||||
|
||||
bool LockedInputs::isDirty() const
|
||||
bool LockedInputs::isImmutable() const
|
||||
{
|
||||
for (auto & i : inputs)
|
||||
if (i.second.ref.isDirty() || i.second.isDirty()) return true;
|
||||
if (!i.second.ref.isImmutable() || !i.second.isImmutable()) return false;
|
||||
|
||||
return false;
|
||||
return true;
|
||||
}
|
||||
|
||||
nlohmann::json LockFile::toJson() const
|
||||
|
|
|
|||
|
|
@ -22,9 +22,7 @@ struct LockedInputs
|
|||
|
||||
nlohmann::json toJson() const;
|
||||
|
||||
/* A lock file is dirty if it contains a dirty flakeref
|
||||
(i.e. reference to a dirty working tree). */
|
||||
bool isDirty() const;
|
||||
bool isImmutable() const;
|
||||
};
|
||||
|
||||
/* Lock file information about a flake input. */
|
||||
|
|
@ -35,9 +33,7 @@ struct LockedInput : LockedInputs
|
|||
|
||||
LockedInput(const FlakeRef & ref, const FlakeRef & originalRef, const Hash & narHash)
|
||||
: ref(ref), originalRef(originalRef), narHash(narHash)
|
||||
{
|
||||
assert(ref.isImmutable());
|
||||
};
|
||||
{ }
|
||||
|
||||
LockedInput(const nlohmann::json & json);
|
||||
|
||||
|
|
|
|||
|
|
@ -1,332 +1,12 @@
|
|||
#include "fetchGit.hh"
|
||||
#include "primops.hh"
|
||||
#include "eval-inline.hh"
|
||||
#include "download.hh"
|
||||
#include "store-api.hh"
|
||||
#include "pathlocks.hh"
|
||||
#include "hash.hh"
|
||||
#include "tarfile.hh"
|
||||
|
||||
#include <sys/time.h>
|
||||
|
||||
#include <regex>
|
||||
|
||||
#include <nlohmann/json.hpp>
|
||||
|
||||
using namespace std::string_literals;
|
||||
#include "fetchers/fetchers.hh"
|
||||
#include "fetchers/parse.hh"
|
||||
|
||||
namespace nix {
|
||||
|
||||
extern std::regex revRegex;
|
||||
|
||||
static Path getCacheInfoPathFor(const std::string & name, const Hash & rev)
|
||||
{
|
||||
Path cacheDir = getCacheDir() + "/nix/git-revs";
|
||||
std::string linkName =
|
||||
name == "source"
|
||||
? rev.gitRev()
|
||||
: hashString(htSHA512, name + std::string("\0"s) + rev.gitRev()).to_string(Base32, false);
|
||||
return cacheDir + "/" + linkName + ".link";
|
||||
}
|
||||
|
||||
static void cacheGitInfo(const std::string & name, const GitInfo & gitInfo)
|
||||
{
|
||||
nlohmann::json json;
|
||||
json["storePath"] = gitInfo.storePath;
|
||||
json["name"] = name;
|
||||
json["rev"] = gitInfo.rev.gitRev();
|
||||
if (gitInfo.revCount)
|
||||
json["revCount"] = *gitInfo.revCount;
|
||||
json["lastModified"] = gitInfo.lastModified;
|
||||
|
||||
auto cacheInfoPath = getCacheInfoPathFor(name, gitInfo.rev);
|
||||
createDirs(dirOf(cacheInfoPath));
|
||||
writeFile(cacheInfoPath, json.dump());
|
||||
}
|
||||
|
||||
static std::optional<GitInfo> lookupGitInfo(
|
||||
ref<Store> store,
|
||||
const std::string & name,
|
||||
const Hash & rev)
|
||||
{
|
||||
try {
|
||||
auto json = nlohmann::json::parse(readFile(getCacheInfoPathFor(name, rev)));
|
||||
|
||||
assert(json["name"] == name && Hash((std::string) json["rev"], htSHA1) == rev);
|
||||
|
||||
Path storePath = json["storePath"];
|
||||
|
||||
if (store->isValidPath(store->parseStorePath(storePath))) {
|
||||
GitInfo gitInfo;
|
||||
gitInfo.storePath = storePath;
|
||||
gitInfo.rev = rev;
|
||||
if (json.find("revCount") != json.end())
|
||||
gitInfo.revCount = json["revCount"];
|
||||
gitInfo.lastModified = json["lastModified"];
|
||||
return gitInfo;
|
||||
}
|
||||
|
||||
} catch (SysError & e) {
|
||||
if (e.errNo != ENOENT) throw;
|
||||
}
|
||||
|
||||
return {};
|
||||
}
|
||||
|
||||
GitInfo exportGit(ref<Store> store, std::string uri,
|
||||
std::optional<std::string> ref,
|
||||
std::optional<Hash> rev,
|
||||
const std::string & name)
|
||||
{
|
||||
assert(!rev || rev->type == htSHA1);
|
||||
|
||||
if (rev) {
|
||||
if (auto gitInfo = lookupGitInfo(store, name, *rev)) {
|
||||
// If this gitInfo was produced by exportGitHub, then it won't
|
||||
// have a revCount. So we have to do a full clone.
|
||||
if (gitInfo->revCount) {
|
||||
gitInfo->ref = ref;
|
||||
return *gitInfo;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (hasPrefix(uri, "git+")) uri = std::string(uri, 4);
|
||||
|
||||
bool isLocal = hasPrefix(uri, "/") && pathExists(uri + "/.git");
|
||||
|
||||
// If this is a local directory (but not a file:// URI) and no ref
|
||||
// or revision is given, then allow the use of an unclean working
|
||||
// tree.
|
||||
if (!ref && !rev && isLocal) {
|
||||
bool clean = false;
|
||||
|
||||
/* Check whether this repo has any commits. There are
|
||||
probably better ways to do this. */
|
||||
bool haveCommits = !readDirectory(uri + "/.git/refs/heads").empty();
|
||||
|
||||
try {
|
||||
if (haveCommits) {
|
||||
runProgram("git", true, { "-C", uri, "diff-index", "--quiet", "HEAD", "--" });
|
||||
clean = true;
|
||||
}
|
||||
} catch (ExecError & e) {
|
||||
if (!WIFEXITED(e.status) || WEXITSTATUS(e.status) != 1) throw;
|
||||
}
|
||||
|
||||
if (!clean) {
|
||||
|
||||
/* This is an unclean working tree. So copy all tracked files. */
|
||||
|
||||
if (!evalSettings.allowDirty)
|
||||
throw Error("Git tree '%s' is dirty", uri);
|
||||
|
||||
if (evalSettings.warnDirty)
|
||||
warn("Git tree '%s' is dirty", uri);
|
||||
|
||||
GitInfo gitInfo;
|
||||
gitInfo.ref = "HEAD";
|
||||
|
||||
auto files = tokenizeString<std::set<std::string>>(
|
||||
runProgram("git", true, { "-C", uri, "ls-files", "-z" }), "\0"s);
|
||||
|
||||
PathFilter filter = [&](const Path & p) -> bool {
|
||||
assert(hasPrefix(p, uri));
|
||||
std::string file(p, uri.size() + 1);
|
||||
|
||||
auto st = lstat(p);
|
||||
|
||||
if (S_ISDIR(st.st_mode)) {
|
||||
auto prefix = file + "/";
|
||||
auto i = files.lower_bound(prefix);
|
||||
return i != files.end() && hasPrefix(*i, prefix);
|
||||
}
|
||||
|
||||
return files.count(file);
|
||||
};
|
||||
|
||||
gitInfo.storePath = store->printStorePath(store->addToStore("source", uri, true, htSHA256, filter));
|
||||
gitInfo.revCount = haveCommits ? std::stoull(runProgram("git", true, { "-C", uri, "rev-list", "--count", "HEAD" })) : 0;
|
||||
// FIXME: maybe we should use the timestamp of the last
|
||||
// modified dirty file?
|
||||
gitInfo.lastModified = haveCommits ? std::stoull(runProgram("git", true, { "-C", uri, "log", "-1", "--format=%ct", "HEAD" })) : 0;
|
||||
|
||||
return gitInfo;
|
||||
}
|
||||
}
|
||||
|
||||
if (!ref) ref = isLocal ? "HEAD" : "master";
|
||||
|
||||
// Don't clone file:// URIs (but otherwise treat them the same as
|
||||
// remote URIs, i.e. don't use the working tree or HEAD).
|
||||
static bool forceHttp = getEnv("_NIX_FORCE_HTTP") == "1"; // for testing
|
||||
if (!forceHttp && hasPrefix(uri, "file://")) {
|
||||
uri = std::string(uri, 7);
|
||||
isLocal = true;
|
||||
}
|
||||
|
||||
Path repoDir;
|
||||
|
||||
if (isLocal) {
|
||||
|
||||
if (!rev)
|
||||
rev = Hash(chomp(runProgram("git", true, { "-C", uri, "rev-parse", *ref })), htSHA1);
|
||||
|
||||
repoDir = uri;
|
||||
|
||||
} else {
|
||||
|
||||
Path cacheDir = getCacheDir() + "/nix/gitv3/" + hashString(htSHA256, uri).to_string(Base32, false);
|
||||
repoDir = cacheDir;
|
||||
|
||||
if (!pathExists(cacheDir)) {
|
||||
createDirs(dirOf(cacheDir));
|
||||
runProgram("git", true, { "init", "--bare", repoDir });
|
||||
}
|
||||
|
||||
Path localRefFile =
|
||||
ref->compare(0, 5, "refs/") == 0
|
||||
? cacheDir + "/" + *ref
|
||||
: cacheDir + "/refs/heads/" + *ref;
|
||||
|
||||
bool doFetch;
|
||||
time_t now = time(0);
|
||||
|
||||
/* If a rev was specified, we need to fetch if it's not in the
|
||||
repo. */
|
||||
if (rev) {
|
||||
try {
|
||||
runProgram("git", true, { "-C", repoDir, "cat-file", "-e", rev->gitRev() });
|
||||
doFetch = false;
|
||||
} catch (ExecError & e) {
|
||||
if (WIFEXITED(e.status)) {
|
||||
doFetch = true;
|
||||
} else {
|
||||
throw;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
/* If the local ref is older than ‘tarball-ttl’ seconds, do a
|
||||
git fetch to update the local ref to the remote ref. */
|
||||
struct stat st;
|
||||
doFetch = stat(localRefFile.c_str(), &st) != 0 ||
|
||||
(uint64_t) st.st_mtime + settings.tarballTtl <= (uint64_t) now;
|
||||
}
|
||||
|
||||
if (doFetch) {
|
||||
Activity act(*logger, lvlTalkative, actUnknown, fmt("fetching Git repository '%s'", uri));
|
||||
|
||||
// FIXME: git stderr messes up our progress indicator, so
|
||||
// we're using --quiet for now. Should process its stderr.
|
||||
try {
|
||||
runProgram("git", true, { "-C", repoDir, "fetch", "--quiet", "--force", "--", uri, fmt("%s:%s", *ref, *ref) });
|
||||
} catch (Error & e) {
|
||||
if (!pathExists(localRefFile)) throw;
|
||||
warn("could not update local clone of Git repository '%s'; continuing with the most recent version", uri);
|
||||
}
|
||||
|
||||
struct timeval times[2];
|
||||
times[0].tv_sec = now;
|
||||
times[0].tv_usec = 0;
|
||||
times[1].tv_sec = now;
|
||||
times[1].tv_usec = 0;
|
||||
|
||||
utimes(localRefFile.c_str(), times);
|
||||
}
|
||||
|
||||
if (!rev)
|
||||
rev = Hash(chomp(readFile(localRefFile)), htSHA1);
|
||||
}
|
||||
|
||||
if (auto gitInfo = lookupGitInfo(store, name, *rev)) {
|
||||
if (gitInfo->revCount) {
|
||||
gitInfo->ref = ref;
|
||||
return *gitInfo;
|
||||
}
|
||||
}
|
||||
|
||||
// FIXME: check whether rev is an ancestor of ref.
|
||||
GitInfo gitInfo;
|
||||
gitInfo.ref = *ref;
|
||||
gitInfo.rev = *rev;
|
||||
|
||||
printTalkative("using revision %s of repo '%s'", gitInfo.rev, uri);
|
||||
|
||||
// FIXME: should pipe this, or find some better way to extract a
|
||||
// revision.
|
||||
auto source = sinkToSource([&](Sink & sink) {
|
||||
RunOptions gitOptions("git", { "-C", repoDir, "archive", gitInfo.rev.gitRev() });
|
||||
gitOptions.standardOut = &sink;
|
||||
runProgram2(gitOptions);
|
||||
});
|
||||
|
||||
Path tmpDir = createTempDir();
|
||||
AutoDelete delTmpDir(tmpDir, true);
|
||||
|
||||
unpackTarfile(*source, tmpDir);
|
||||
|
||||
gitInfo.storePath = store->printStorePath(store->addToStore(name, tmpDir));
|
||||
|
||||
gitInfo.revCount = std::stoull(runProgram("git", true, { "-C", repoDir, "rev-list", "--count", gitInfo.rev.gitRev() }));
|
||||
gitInfo.lastModified = std::stoull(runProgram("git", true, { "-C", repoDir, "log", "-1", "--format=%ct", gitInfo.rev.gitRev() }));
|
||||
|
||||
cacheGitInfo(name, gitInfo);
|
||||
|
||||
return gitInfo;
|
||||
}
|
||||
|
||||
GitInfo exportGitHub(
|
||||
ref<Store> store,
|
||||
const std::string & owner,
|
||||
const std::string & repo,
|
||||
std::optional<std::string> ref,
|
||||
std::optional<Hash> rev)
|
||||
{
|
||||
if (rev) {
|
||||
if (auto gitInfo = lookupGitInfo(store, "source", *rev))
|
||||
return *gitInfo;
|
||||
}
|
||||
|
||||
if (!rev) {
|
||||
auto url = fmt("https://api.github.com/repos/%s/%s/commits/%s",
|
||||
owner, repo, ref ? *ref : "master");
|
||||
CachedDownloadRequest request(url);
|
||||
request.ttl = rev ? 1000000000 : settings.tarballTtl;
|
||||
auto result = getDownloader()->downloadCached(store, request);
|
||||
auto json = nlohmann::json::parse(readFile(result.path));
|
||||
rev = Hash(json["sha"], htSHA1);
|
||||
}
|
||||
|
||||
// FIXME: use regular /archive URLs instead? api.github.com
|
||||
// might have stricter rate limits.
|
||||
|
||||
auto url = fmt("https://api.github.com/repos/%s/%s/tarball/%s",
|
||||
owner, repo, rev->to_string(Base16, false));
|
||||
|
||||
std::string accessToken = settings.githubAccessToken.get();
|
||||
if (accessToken != "")
|
||||
url += "?access_token=" + accessToken;
|
||||
|
||||
CachedDownloadRequest request(url);
|
||||
request.unpack = true;
|
||||
request.name = "source";
|
||||
request.ttl = 1000000000;
|
||||
request.getLastModified = true;
|
||||
auto result = getDownloader()->downloadCached(store, request);
|
||||
|
||||
assert(result.lastModified);
|
||||
|
||||
GitInfo gitInfo;
|
||||
gitInfo.storePath = result.storePath;
|
||||
gitInfo.rev = *rev;
|
||||
gitInfo.lastModified = *result.lastModified;
|
||||
|
||||
// FIXME: this can overwrite a cache file that contains a revCount.
|
||||
cacheGitInfo("source", gitInfo);
|
||||
|
||||
return gitInfo;
|
||||
}
|
||||
|
||||
static void prim_fetchGit(EvalState & state, const Pos & pos, Value * * args, Value & v)
|
||||
{
|
||||
std::string url;
|
||||
|
|
@ -368,18 +48,31 @@ static void prim_fetchGit(EvalState & state, const Pos & pos, Value * * args, Va
|
|||
if (evalSettings.pureEval && !rev)
|
||||
throw Error("in pure evaluation mode, 'fetchGit' requires a Git revision");
|
||||
|
||||
auto gitInfo = exportGit(state.store, url, ref, rev, name);
|
||||
auto parsedUrl = fetchers::parseURL(
|
||||
url.find("://") != std::string::npos
|
||||
? "git+" + url
|
||||
: "git+file://" + url);
|
||||
if (ref) parsedUrl.query.insert_or_assign("ref", *ref);
|
||||
if (rev) parsedUrl.query.insert_or_assign("rev", rev->gitRev());
|
||||
// FIXME: use name
|
||||
auto input = inputFromURL(parsedUrl);
|
||||
|
||||
auto tree = input->fetchTree(state.store).first;
|
||||
|
||||
state.mkAttrs(v, 8);
|
||||
mkString(*state.allocAttr(v, state.sOutPath), gitInfo.storePath, PathSet({gitInfo.storePath}));
|
||||
mkString(*state.allocAttr(v, state.symbols.create("rev")), gitInfo.rev.gitRev());
|
||||
mkString(*state.allocAttr(v, state.symbols.create("shortRev")), gitInfo.rev.gitShortRev());
|
||||
assert(gitInfo.revCount);
|
||||
mkInt(*state.allocAttr(v, state.symbols.create("revCount")), *gitInfo.revCount);
|
||||
auto storePath = state.store->printStorePath(tree.storePath);
|
||||
mkString(*state.allocAttr(v, state.sOutPath), storePath, PathSet({storePath}));
|
||||
// Backward compatibility: set 'rev' to
|
||||
// 0000000000000000000000000000000000000000 for a dirty tree.
|
||||
auto rev2 = tree.rev.value_or(Hash(htSHA1));
|
||||
mkString(*state.allocAttr(v, state.symbols.create("rev")), rev2.gitRev());
|
||||
mkString(*state.allocAttr(v, state.symbols.create("shortRev")), rev2.gitShortRev());
|
||||
assert(tree.revCount);
|
||||
mkInt(*state.allocAttr(v, state.symbols.create("revCount")), *tree.revCount);
|
||||
v.attrs->sort();
|
||||
|
||||
if (state.allowedPaths)
|
||||
state.allowedPaths->insert(state.store->toRealPath(gitInfo.storePath));
|
||||
state.allowedPaths->insert(tree.actualPath);
|
||||
}
|
||||
|
||||
static RegisterPrimOp r("fetchGit", 1, prim_fetchGit);
|
||||
|
|
|
|||
|
|
@ -1,32 +0,0 @@
|
|||
#pragma once
|
||||
|
||||
#include "store-api.hh"
|
||||
|
||||
#include <regex>
|
||||
|
||||
namespace nix {
|
||||
|
||||
struct GitInfo
|
||||
{
|
||||
Path storePath;
|
||||
std::optional<std::string> ref;
|
||||
Hash rev{htSHA1};
|
||||
std::optional<uint64_t> revCount;
|
||||
time_t lastModified;
|
||||
};
|
||||
|
||||
GitInfo exportGit(
|
||||
ref<Store> store,
|
||||
std::string uri,
|
||||
std::optional<std::string> ref,
|
||||
std::optional<Hash> rev,
|
||||
const std::string & name);
|
||||
|
||||
GitInfo exportGitHub(
|
||||
ref<Store> store,
|
||||
const std::string & owner,
|
||||
const std::string & repo,
|
||||
std::optional<std::string> ref,
|
||||
std::optional<Hash> rev);
|
||||
|
||||
}
|
||||
|
|
@ -36,10 +36,10 @@ HgInfo exportMercurial(ref<Store> store, const std::string & uri,
|
|||
/* This is an unclean working tree. So copy all tracked
|
||||
files. */
|
||||
|
||||
if (!evalSettings.allowDirty)
|
||||
if (!settings.allowDirty)
|
||||
throw Error("Mercurial tree '%s' is unclean", uri);
|
||||
|
||||
if (evalSettings.warnDirty)
|
||||
if (settings.warnDirty)
|
||||
warn("Mercurial tree '%s' is unclean", uri);
|
||||
|
||||
HgInfo hgInfo;
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue