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2021-12-01src/libutil/util.hh: fix build on gcc-11Sergei Trofimovich
Due to missing <atomic> declaration the build fails as: src/libutil/util.hh:350:24: error: no match for 'operator||' (operand types are 'std::atomic<bool>' and 'bool') 350 | if (_isInterrupted || (interruptCheck && interruptCheck())) | ~~~~~~~~~~~~~~ ^~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | | | | std::atomic<bool> bool
2021-11-29createTempFile(): Mark file as CLOEEXECEelco Dolstra
Fixes #5674.
2021-11-24Fix a minor data race with _isInterruptedAlex Shabalin
2021-11-17Fix XDG_CONFIG_DIRS fallbackJan Tojnar
According to XDG Base Directory Specification, it should fall back to /etc/xdg when the env var is not present.
2021-11-16Ignore errors unsharing/restoring the mount namespaceEelco Dolstra
This prevents Nix from barfing when run in a container where it doesn't have the appropriate privileges.
2021-11-08Merge branch 'fix-writable-shell' of https://github.com/yorickvP/nixEelco Dolstra
2021-10-29Merge branch 'master' of https://github.com/alekswn/nixEelco Dolstra
2021-10-28Merge remote-tracking branch 'origin/master' into non-blocking-gcEelco Dolstra
2021-10-27StyleEelco Dolstra
2021-10-26parseExperimentalFeature(): Initialize atomicallyEelco Dolstra
2021-10-26Make experimental-features a proper typeregnat
Rather than having them plain strings scattered through the whole codebase, create an enum containing all the known experimental features. This means that - Nix can now `warn` when an unkwown experimental feature is passed (making it much nicer to spot typos and spot deprecated features) - It’s now easy to remove a feature altogether (once the feature isn’t experimental anymore or is dropped) by just removing the field for the enum and letting the compiler point us to all the now invalid usages of it.
2021-10-17Fix error detection in 'base64Decode()'Alexey Novikov
Fixed a bug in initialization of 'base64DecodeChars' variable. Currently decoder do not fail on invalid Base64 strings. Added test-case to verify the fix. Also have made 'base64DecodeChars' to be computed at compile time. And added a test case to encode/decode string with non-printable charactes.
2021-10-15Restore parent mount namespace in restoreProcessContextYorick van Pelt
This ensures any started processes can't write to /nix/store (except during builds). This partially reverts 01d07b1e, which happened because of #2646. The problem was only happening after nix downloads anything, causing me to suspect the download thread. The problem turns out to be: "A process can't join a new mount namespace if it is sharing filesystem-related attributes with another process", in this case this process is the curl thread. Ideally, we might kill it before spawning the shell process, but it's inside a static variable in the getFileTransfer() function. So instead, stop it from sharing FS state using unshare(). A strategy such as the one from #5057 (single-threaded chroot helper binary) is also very much on the table. Fixes #4337.
2021-10-14Make the canReachRoots() traversal non-recursiveEelco Dolstra
2021-10-13fix build with gcc11kvtb
2021-10-13strcpy -> memcpyEelco Dolstra
Co-authored-by: Jörg Thalheim <Mic92@users.noreply.github.com>
2021-10-13Use a thread per connectionEelco Dolstra
2021-10-13Non-blocking garbage collectorEelco Dolstra
The garbage collector no longer blocks other processes from adding/building store paths or adding GC roots. To prevent the collector from deleting store paths just added by another process, processes need to connect to the garbage collector via a Unix domain socket to register new temporary roots.
2021-10-13Style tweaksEelco Dolstra
2021-10-12Add compression level for NARsTom Bereknyei
Based off on @dtzWill's #2276
2021-10-06Don't reset the logger in a vforkEelco Dolstra
9c766a40cbbd3a350a9582d0fd8201e3361a63b2 broke logging from the daemon, because commonChildInit is called when starting the build hook in a vfork, so it ends up resetting the parent's logger. So don't vfork. It might be best to get rid of vfork altogether, but that may cause problems, e.g. when we call an external program like git from the evaluator.
2021-10-05Show failing PIDEelco Dolstra
2021-10-05TypoEelco Dolstra
2021-10-05Connect/bind Unix domain sockets in a child processEelco Dolstra
In the child process, we can do a chdir() and avoid the problem of the path not fitting into sockaddr_un.
2021-10-02fix creation of NAR files >4GB on 32-bit platformskvtb
`size_t` is 32-bit on 32-bit platforms, while the file size can be bigger
2021-09-27Fix 'error: reading a line: Input/output error' in startBuilder()Eelco Dolstra
With -vvvv, the ProgressBar was polluting the stderr of the child, messing up its \2 message to the parent.
2021-09-22Make setDefault() typedEelco Dolstra
2021-09-14Add "nix profile rollback" commandEelco Dolstra
2021-09-14Merge pull request #5245 from edolstra/warningsEelco Dolstra
Change warning messages from yellow to magenta
2021-09-14Merge pull request #5240 from edolstra/builtin-helpEelco Dolstra
nix --help: Display help using lowdown instead of man
2021-09-14Change warnings from yellow to magentaEelco Dolstra
This matches gcc and clang.
2021-09-14ANSI_YELLOW -> ANSI_WARNINGEelco Dolstra
2021-09-14Fix macOS buildEelco Dolstra
2021-09-14Fix clang warningEelco Dolstra
2021-09-13RunOptions: Use designated initializersEelco Dolstra
Also get rid of _killStderr because it wasn't actually checked anywhere.
2021-09-13nix --help: Display help using lowdown instead of manEelco Dolstra
Fixes #4476. Fixes #5231.
2021-09-08Add missing include in util.ccNaïm Favier
2021-08-30TarArchive: Small refactoringEelco Dolstra
2021-08-30Don't segfault if archive_entry_pathname() returns nullEelco Dolstra
Issues #4499.
2021-08-30Merge pull request #5175 from Pamplemousse/makeEelco Dolstra
Don't overwrite user provided `lib*_LDFLAGS`
2021-08-29Force all Pos* to be non-nullRobert Hensing
This fixes a class of crashes and introduces ptr<T> to make the code robust against this failure mode going forward. Thanks regnat for the idea of a ref<T> without overhead! Closes #4895 Closes #4893 Closes #5127 Closes #5113
2021-08-25Don't overwrite user provided `lib*_LDFLAGS`Pamplemousse
Signed-off-by: Pamplemousse <xav.maso@gmail.com>
2021-08-22Replace invalid characters in json loggerYaroslav Bolyukin
Fixes #5159 Signed-off-by: Yaroslav Bolyukin <iam@lach.pw>
2021-08-1015f4d4f follow upPamplemousse
* libstore: `bz2` should not be linked * libutil: `zlib.h` should not be included Signed-off-by: Pamplemousse <xav.maso@gmail.com>
2021-07-30libutil: initialize the base64 decode array only onceAndreas Rammhold
Previously, despite having a boolean that tracked initialization, the decode characters have been "calculated" every single time a base64 string was being decoded. With this change we only initialize the decode array once in a thread-safe manner.
2021-07-24libutil: use uniform initialization in _deletePathAlyssa Ross
Otherwise I get a compiler error when building for NetBSD: src/libutil/util.cc: In function 'void nix::_deletePath(const Path&, uint64_t&)': src/libutil/util.cc:438:17: error: base operand of '->' is not a pointer 438 | AutoCloseFD dirfd(open(dir.c_str(), O_RDONLY)); | ^~~~~ src/libutil/util.cc:439:10: error: 'dirfd' was not declared in this scope 439 | if (!dirfd) { | ^~~~~ src/libutil/util.cc:444:17: error: 'dirfd' was not declared in this scope 444 | _deletePath(dirfd.get(), path, bytesFreed); | ^~~~~
2021-07-20deletePath(): Return ENFILE instead of EBADF when out of file descriptorsEelco Dolstra
Also remove an erroneous comment.
2021-07-15Forward the whole Nix config to the post-build-hookregnat
Fill `NIX_CONFIG` with the value of the current Nix configuration before calling the post-build-hook. That way the whole configuration (including the possible `experimental-features`, a possibly `--store` option or whatever) will be made available to the hook
2021-07-09ref: Add equality operatorsEelco Dolstra
2021-07-03Merge pull request #4967 from Pamplemousse/specific_errorsDomen Kožar
Prefer to throw specific errors