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mirror of https://github.com/NixOS/nix synced 2025-07-06 05:01:48 +02:00
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Build a minimized Nix with MinGW

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At this point many features are stripped out, but this works:

- Can run libnix{util,store,expr} unit tests
- Can run some Nix commands

Co-Authored-By volth <volth@volth.com>
Co-Authored-By Brian McKenna <brian@brianmckenna.org>
This commit is contained in:
John Ericson 2023-09-02 17:35:16 -04:00
parent 2248a3f545
commit 8433027e35
111 changed files with 1162 additions and 140 deletions
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29
src/nix-store/nix-store.cc
View file

@ -4,10 +4,8 @@
#include "globals.hh"
#include "build-result.hh"
#include "store-cast.hh"
#include "gc-store.hh"
#include "local-fs-store.hh"
#include "log-store.hh"
#include "local-store.hh"
#include "monitor-fd.hh"
#include "serve-protocol.hh"
#include "serve-protocol-impl.hh"
#include "shared.hh"
@ -15,7 +13,12 @@
#include "legacy.hh"
#include "posix-source-accessor.hh"
#include "path-with-outputs.hh"
#include "posix-fs-canonicalise.hh"
#ifndef _WIN32 // TODO implement on Windows or provide allowed-to-noop interface
# include "local-store.hh"
# include "monitor-fd.hh"
# include "posix-fs-canonicalise.hh"
#endif
#include <iostream>
#include <algorithm>
@ -43,12 +46,14 @@ static bool noOutput = false;
static std::shared_ptr<Store> store;
#ifndef _WIN32 // TODO reenable on Windows once we have `LocalStore` there
ref<LocalStore> ensureLocalStore()
{
auto store2 = std::dynamic_pointer_cast<LocalStore>(store);
if (!store2) throw Error("you don't have sufficient rights to use this command");
return ref<LocalStore>(store2);
}
#endif
static StorePath useDeriver(const StorePath & path)
@ -550,7 +555,11 @@ static void registerValidity(bool reregister, bool hashGiven, bool canonicalise)
if (!store->isValidPath(info->path) || reregister) {
/* !!! races */
if (canonicalise)
#ifdef _WIN32 // TODO implement on Windows
throw UnimplementedError("file attribute canonicalisation Is not implemented on Windows");
#else
canonicalisePathMetaData(store->printStorePath(info->path), {});
#endif
if (!hashGiven) {
HashResult hash = hashPath(
*store->getFSAccessor(false), CanonPath { store->printStorePath(info->path) },
@ -563,7 +572,9 @@ static void registerValidity(bool reregister, bool hashGiven, bool canonicalise)
}
}
#ifndef _WIN32 // TODO reenable on Windows once we have `LocalStore` there
ensureLocalStore()->registerValidPaths(infos);
#endif
}
@ -684,7 +695,7 @@ static void opDump(Strings opFlags, Strings opArgs)
if (!opFlags.empty()) throw UsageError("unknown flag");
if (opArgs.size() != 1) throw UsageError("only one argument allowed");
FdSink sink(STDOUT_FILENO);
FdSink sink(getStandardOut());
std::string path = *opArgs.begin();
dumpPath(path, sink);
sink.flush();
@ -712,7 +723,7 @@ static void opExport(Strings opFlags, Strings opArgs)
for (auto & i : opArgs)
paths.insert(store->followLinksToStorePath(i));
FdSink sink(STDOUT_FILENO);
FdSink sink(getStandardOut());
store->exportPaths(paths, sink);
sink.flush();
}
@ -825,7 +836,7 @@ static void opServe(Strings opFlags, Strings opArgs)
if (!opArgs.empty()) throw UsageError("no arguments expected");
FdSource in(STDIN_FILENO);
FdSink out(STDOUT_FILENO);
FdSink out(getStandardOut());
/* Exchange the greeting. */
ServeProto::Version clientVersion =
@ -946,7 +957,9 @@ static void opServe(Strings opFlags, Strings opArgs)
getBuildSettings();
try {
#ifndef _WIN32 // TODO figure out if Windows needs something similar
MonitorFdHup monitor(in.fd);
#endif
store->buildPaths(toDerivedPaths(paths));
out << 0;
} catch (Error & e) {
@ -966,7 +979,9 @@ static void opServe(Strings opFlags, Strings opArgs)
getBuildSettings();
#ifndef _WIN32 // TODO figure out if Windows needs something similar
MonitorFdHup monitor(in.fd);
#endif
auto status = store->buildDerivation(drvPath, drv);
ServeProto::write(*store, wconn, status);