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mirror of https://github.com/NixOS/nix synced 2025-06-27 12:41:15 +02:00
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Build a minimized Nix with MinGW

Browse source 
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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31
src/libutil/fs-sink.cc
View file

@ -1,8 +1,15 @@
#include <fcntl.h>
#include "error.hh"
#include "config.hh"
#include "fs-sink.hh"
#if _WIN32
# include <fileapi.h>
# include "file-path.hh"
# include "windows-error.hh"
#endif
namespace nix {
void copyRecursive(
@ -65,8 +72,14 @@ static GlobalConfig::Register r1(&restoreSinkSettings);
void RestoreSink::createDirectory(const Path & path)
{
Path p = dstPath + path;
if (mkdir(p.c_str(), 0777) == -1)
throw SysError("creating directory '%1%'", p);
if (
#ifndef _WIN32 // TODO abstract mkdir perms for Windows
mkdir(p.c_str(), 0777) == -1
#else
!CreateDirectoryW(pathNG(p).c_str(), NULL)
#endif
)
throw NativeSysError("creating directory '%1%'", p);
};
struct RestoreRegularFile : CreateRegularFileSink {
@ -81,18 +94,28 @@ void RestoreSink::createRegularFile(const Path & path, std::function<void(Create
{
Path p = dstPath + path;
RestoreRegularFile crf;
crf.fd = open(p.c_str(), O_CREAT | O_EXCL | O_WRONLY | O_CLOEXEC, 0666);
if (!crf.fd) throw SysError("creating file '%1%'", p);
crf.fd =
#ifdef _WIN32
CreateFileW(pathNG(path).c_str(), GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL)
#else
open(p.c_str(), O_CREAT | O_EXCL | O_WRONLY | O_CLOEXEC, 0666)
#endif
;
if (!crf.fd) throw NativeSysError("creating file '%1%'", p);
func(crf);
}
void RestoreRegularFile::isExecutable()
{
// Windows doesn't have a notion of executable file permissions we
// care about here, right?
#ifndef _WIN32
struct stat st;
if (fstat(fd.get(), &st) == -1)
throw SysError("fstat");
if (fchmod(fd.get(), st.st_mode | (S_IXUSR | S_IXGRP | S_IXOTH)) == -1)
throw SysError("fchmod");
#endif
}
void RestoreRegularFile::preallocateContents(uint64_t len)