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the new event loop could very occasionally notice that a dependency of
some goal has failed, process the failure, cause the depending goal to
fail accordingly, and in the doing of the latter two steps let further
dependencies that previously have not been reported as failed do their
reporting anyway. in such cases a goal could fail with "1 dependencies
failed", but more than one dependency failure message was shown. we'll
now report the correct number of failed dependency goals in all cases.
Change-Id: I5aa95dcb2db4de4fd5fee8acbf5db833531d81a8
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these can be unique rather than shared because shared_ptr has a
converting constructor. preparatory refactor for something else
and not necessary on its own, and the extra allocations we must
do for shared_ptr control blocks isn't usually relevant anyway.
Change-Id: I5391715545240c6ec8e83a031206edafdfc6462f
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also gets rid of explicit strong references to dependencies of any goal,
and weak references to dependers as well. those are now only held within
promises representing goal completion and thus independent of the goal's
relation to each other. the weak references to dependers was only needed
for notifications, and that's much better handled entirely by kj itself.
Change-Id: I00d06df9090f8d6336ee4bb0c1313a7052fb016b
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now that we have an event loop in the worker we can use it and its
magical execution suspending properties to replace the slot counts
we managed explicitly with semaphores and raii tokens. technically
this would not have needed an event loop base to be doable, but it
is a whole lot easier to wait for a token to be available if there
is a callback mechanism ready for use that doesn't require a whole
damn dedicated abstract method in Goal to work, and specific calls
to that dedicated method strewn all over the worker implementation
Change-Id: I1da7cf386d94e2bbf2dba9b53ff51dbce6a0cff7
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with waitForAWhile turned into promised the core functionality of
waitForInput is now merely to let gc run every so often if needed
Change-Id: I68da342bbc1d67653901cf4502dabfa5bc947628
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this simplifies waitForInput quite a lot, and at the same time makes
polling less thundering-herd-y. it even fixes early polling wakeups!
Change-Id: I6dfa62ce91729b8880342117d71af5ae33366414
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this removes the rather janky did-you-mean-async poll loop we had so
far. sadly kj does not play well with pty file descriptors, so we do
have to add our own async input stream that does not eat pty EIO and
turns it into an exception. that's still a *lot* better than the old
code, and using a real even loop makes everything else easier later.
Change-Id: Idd7e0428c59758602cc530bcad224cd2fed4c15e
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* changes:
Fix passing custom CA files into the builtin:fetchurl sandbox
[security] builtin:fetchurl: Enable TLS verification
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Without this, verifying TLS certificates would fail on macOS, as well
as any system that doesn't have a certificate file at /etc/ssl/certs/ca-certificates.crt,
which includes e.g. Fedora.
Change-Id: Iaa2e0e9db3747645b5482c82e3e0e4e8f229f5f9
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This is better for privacy and to avoid leaking netrc credentials in a
MITM attack, but also the assumption that we check the hash no longer
holds in some cases (in particular for impure derivations).
Partially reverts https://github.com/NixOS/nix/commit/5db358d4d78aea7204a8f22c5bf2a309267ee038.
(cherry picked from commit c04bc17a5a0fdcb725a11ef6541f94730112e7b6)
(cherry picked from commit f2f47fa725fc87bfb536de171a2ea81f2789c9fb)
(cherry picked from commit 7b39cd631e0d3c3d238015c6f450c59bbc9cbc5b)
Upstream-PR: https://github.com/NixOS/nix/pull/11585
Change-Id: Ia973420f6098113da05a594d48394ce1fe41fbb9
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These stack traces kind of suck for the reasons mentioned on the
CppTrace page here (no symbols for inline functions is a major one):
https://github.com/jeremy-rifkin/cpptrace
I would consider using CppTrace if it were packaged, but to be honest, I
think that the more reasonable option is actually to move entirely to
out-of-process crash handling and symbolization.
The reason for this is that if you want to generate anything of
substance on SIGSEGV or really any deadly signal, you are stuck in
async-signal-safe land, which is not a place to be trying to run a
symbolizer. LLVM does it anyway, probably carefully, and chromium *can*
do it on debug builds but in general uses crashpad:
https://source.chromium.org/chromium/chromium/src/+/main:base/debug/stack_trace_posix.cc;l=974;drc=82dff63dbf9db05e9274e11d9128af7b9f51ceaa;bpv=1;bpt=1
However, some stack traces are better than *no* stack traces when we get
mystery exceptions falling out the bottom of the program. I've also
promoted the path for "mystery exceptions falling out the bottom of the
program" to hard crash and generate a core dump because although there's
been some months since the last one of these, these are nonetheless
always *atrociously* diagnosed.
We can't improve the crash handling further until either we use Crashpad
(which involves more C++ deps, no thanks) or we put in the ostensibly
work in progress Rust minidump infrastructure, in which case we need to
finish full support for Rust in libutil first.
Sample report:
Lix crashed. This is a bug. We would appreciate if you report it at https://git.lix.systems/lix-project/lix/issues with the following information included:
Exception: std::runtime_error: lol
Stack trace:
0# nix::printStackTrace() in /home/jade/lix/lix3/build/src/nix/../libutil/liblixutil.so
1# 0x000073C9862331F2 in /home/jade/lix/lix3/build/src/nix/../libmain/liblixmain.so
2# 0x000073C985F2E21A in /nix/store/p44qan69linp3ii0xrviypsw2j4qdcp2-gcc-13.2.0-lib/lib/libstdc++.so.6
3# 0x000073C985F2E285 in /nix/store/p44qan69linp3ii0xrviypsw2j4qdcp2-gcc-13.2.0-lib/lib/libstdc++.so.6
4# nix::handleExceptions(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::function<void ()>) in /home/jade/lix/lix3/build/src/nix/../libmain/liblixmain.so
5# 0x00005CF65B6B048B in /home/jade/lix/lix3/build/src/nix/nix
6# 0x000073C985C8810E in /nix/store/dbcw19dshdwnxdv5q2g6wldj6syyvq7l-glibc-2.39-52/lib/libc.so.6
7# __libc_start_main in /nix/store/dbcw19dshdwnxdv5q2g6wldj6syyvq7l-glibc-2.39-52/lib/libc.so.6
8# 0x00005CF65B610335 in /home/jade/lix/lix3/build/src/nix/nix
Change-Id: I1a9f6d349b617fd7145a37159b78ecb9382cb4e9
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This caused an infinite loop before since it would just keep asking the
underlying source for more data.
In practice this happened because an HTTP server served a
response to a HEAD request (for which curl will not retrieve any body or
call our write callback function) with Content-Encoding: br, leading to
decompressing nothing at all and going into an infinite loop.
This adds a test to make sure none of our compression methods do that
again, as well as just patching the HTTP client to never feed empty data
into a compression algorithm (since they absolutely have the right to
throw CompressionError on unexpectedly-short streams!).
Reported on Matrix: https://matrix.to/#/!lymvtcwDJ7ZA9Npq:lix.systems/$8BWQR_zKxCQDJ40C5NnDo4bQPId3pZ_aoDj2ANP7Itc?via=lix.systems&via=matrix.org&via=tchncs.de
Change-Id: I027566e280f0f569fdb8df40e5ecbf46c211dad1
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into main
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* changes:
archive: refactor bad mutable-state API in the NAR parse listener
archive: rename ParseSink to NARParseVisitor
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* Move the extended attribute deletion after the hardlink sanity check. We
shouldn't be removing extended attributes on random files.
* Make the entity owner-writable before attempting to remove extended
attributes, since this operation usually requires write access on the file,
and we shouldn't fail xattr deletion on a file that has been made unwritable
by the builder or a previous canonicalisation pass.
Fixes: https://git.lix.systems/lix-project/lix/issues/507
Change-Id: I7e6ccb71649185764cd5210f4a4794ee174afea6
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This is not a detailed diagnosis, and it's not worth writing one, tbh.
This error basically never happens in normal operation, so diagnosing it
by changing the error on macOS is good enough.
Relevant: https://git.lix.systems/lix-project/lix-installer/issues/24
Relevant: https://git.lix.systems/lix-project/lix-installer/issues/18
Relevant: https://git.lix.systems/lix-project/lix/issues/521
Change-Id: I03701f917d116575c72a97502b8e1617679447f2
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Remove the mutable state stuff that assumes that one file is being
written a time. It's true that we don't write multiple files
interleaved, but that mutable state is evil.
Change-Id: Ia1481da48255d901e4b09a9b783e7af44fae8cff
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- Rename the listener to not be called a "sink". If it were a "sink" it
would be eating bytes and conform with any of the Nix sink stuff
(maybe FileHandle should be a Sink itself! but that's a later CL's
problem). This is a parser listener.
- Move the RetrieveRegularNARSink thing into store-api.cc, which is its
only usage, and fix it to actually do what it is stated to do: crash
if its invariants are violated.
It's, of course, used to erm, unpack single-file NAR files, generated
via a horrible contraption of sources and sinks that looks like a
plumbing blueprint. Refactoring that is a future task.
- Add a description of the invariants of NARParseVisitor in preparation
of refactoring it.
Change-Id: Ifca1d74d2947204a1f66349772e54dad0743e944
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* changes:
libfetchers: serialise accept-flake-config properly
libstore: declare SandboxMode JSON serialisation in the header
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using a proper event loop basis we no longer have to worry about most of
the intricacies of poll(), or platform-dependent replacements for it. we
may even be able to use the event loop and its promise system for all of
our scheduling in the future. we don't do any real async processing yet,
this is just preparation to separate the first such change from the huge
api design difference with the async framework we chose (kj from capnp):
kj::Promise, unlike std::future, doesn't return exceptions unmangled. it
instead wraps any non-kj exception into a kj exception, erasing all type
information and preserving mostly the what() string in the process. this
makes sense in the capnp rpc use case where unrestricted exception types
can't be transferred, and since it moves error handling styles closer to
a world we'd actually like there's no harm in doing it only here for now
Change-Id: I20f888de74d525fb2db36ca30ebba4bcfe9cc838
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The JSON serialisation should be declared in the header so that all translation
units can see it when needed, even though it seems that it has not been used
anywhere else so far. Unfortunately, this means we cannot use the
NLOHMANN_JSON_SERIALIZE_ENUM convenience macro, since it uses a slightly
different signature, but the code is not too bad either.
Change-Id: I6e2851b250e0b53114d2fecb8011ff1ea9379d0f
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See: https://gerrit.lix.systems/c/lix/+/1864
Change-Id: Ic70bfe42b261a83f2cb68b8f102833b739b8e03a
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* changes:
Support relative and `~/` paths in config settings
Thread `ApplyConfigOptions` through config parsing
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it just makes sense to have it too, rather than just the pass/fail
information we keep so far. once we turn goals into something more
promise-shaped it'll also help detangle the current data flow mess
Change-Id: I915cf04d177cad849ea7a5833215d795326f1946
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the more useful type for `result` is BuildResult.
Change-Id: If93d9384e8d686eb63b33320f1d565f9b9afbf3a
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it doesn't have a purpose except cache priming, which is largely
irrelevant by default (since another code path already runs this
exact query). our store implementations do not benefit that much
from this either, and the more bursty load may indeed harm them.
Change-Id: I1cc12f8c21cede42524317736d5987f1e43fc9c9
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updating statistics *immediately* when any counter changes declutters
things somewhat and makes useful status reports less dependent on the
current worker main loop. using callbacks will make it easier to move
the worker loop into kj entirely, using only promises for scheduling.
Change-Id: I695dfa83111b1ec09b1a54cff268f3c1d7743ed6
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there's no reason to go through the event loop in these cases. returning
ContinueImmediately here is just a very convoluted way of jumping to the
state we've just set after unwinding one frame of the stack, which never
matters in the cases changed here because there are no live RAII guards.
Change-Id: I7c00948c22e3caf35e934c1a14ffd2d40efc5547
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this is not ideal, but it's better than having this stuck in the worker
loop itself. setting ex on all failing goals is not problematic because
only toplevel goals can ever be observable, all the others are ignored.
notably only derivation goals ever set `ex`, substitution goals do not.
Change-Id: I02e2164487b2955df053fef3c8e774d557aa638a
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this doesn't serve a great purpose yet except to confine construction of
goals to the stack frame of Worker::run() and its child frames. we don't
need this yet (and the goal constructors remain fully visible), but in a
future change that fully removes the current worker loop we'll need some
way of knowing which goals are top-level goals without passing the goals
themselves around. once that's possible we can remove visible goals as a
concept and rely on build result futures and a scheduler built upon them
Change-Id: Ia73cdeffcfb9ba1ce9d69b702dc0bc637a4c4ce6
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whether goal errors are reported via the `ex` member or just printed to
the log depends on whether the goal is a toplevel goal or a dependency.
if goals are aware of this themselves we can move error printing out of
the worker loop, and since a running worker can only be used by running
goals it's totally sufficient to keep a `Worker::running` flag for this
Change-Id: I6b5cbe6eccee1afa5fde80653c4b968554ddd16f
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This didn't really feel so worth it afterwards, but I did untangle a
bunch of stuff that should not have been tangled.
The general gist of this change is that variant bullshit was causing a
bunch of compile time, and it seems like the only way to deal with
variant induced compile time is to keep variant types out of headers.
Explicit template instantiation seems to do nothing for them.
I also seem to have gotten some back-end time improvement from
explicitly instantiating regex, but I don't know why. There is no
corresponding front-end time improvement from it: regex is still at the
top of the sinners list.
**** Templates that took longest to instantiate:
15231 ms: std::basic_regex<char>::_M_compile (28 times, avg 543 ms)
15066 ms: std::__detail::_Compiler<std::regex_traits<char>>::_Compiler (28 times, avg 538 ms)
12571 ms: std::__detail::_Compiler<std::regex_traits<char>>::_M_disjunction (28 times, avg 448 ms)
12454 ms: std::__detail::_Compiler<std::regex_traits<char>>::_M_alternative (28 times, avg 444 ms)
12225 ms: std::__detail::_Compiler<std::regex_traits<char>>::_M_term (28 times, avg 436 ms)
11363 ms: nlohmann::basic_json<>::parse<const char *> (21 times, avg 541 ms)
10628 ms: nlohmann::basic_json<>::basic_json (109 times, avg 97 ms)
10134 ms: std::__detail::_Compiler<std::regex_traits<char>>::_M_atom (28 times, avg 361 ms)
Back-end time before messing with the regex:
**** Function sets that took longest to compile / optimize:
8076 ms: void boost::io::detail::put<$>(boost::io::detail::put_holder<$> cons... (177 times, avg 45 ms)
4382 ms: std::_Rb_tree<$>::_M_erase(std::_Rb_tree_node<$>*) (1247 times, avg 3 ms)
3137 ms: boost::stacktrace::detail::to_string_impl_base<boost::stacktrace::de... (137 times, avg 22 ms)
2896 ms: void boost::io::detail::mk_str<$>(std::__cxx11::basic_string<$>&, ch... (177 times, avg 16 ms)
2304 ms: std::_Rb_tree<$>::_M_get_insert_hint_unique_pos(std::_Rb_tree_const_... (210 times, avg 10 ms)
2116 ms: bool std::__detail::_Compiler<$>::_M_expression_term<$>(std::__detai... (112 times, avg 18 ms)
2051 ms: std::_Rb_tree_iterator<$> std::_Rb_tree<$>::_M_emplace_hint_unique<$... (244 times, avg 8 ms)
2037 ms: toml::result<$> toml::detail::sequence<$>::invoke<$>(toml::detail::l... (93 times, avg 21 ms)
1928 ms: std::__detail::_Compiler<$>::_M_quantifier() (28 times, avg 68 ms)
1859 ms: nlohmann::json_abi_v3_11_3::detail::serializer<$>::dump(nlohmann::js... (41 times, avg 45 ms)
1824 ms: std::_Function_handler<$>::_M_manager(std::_Any_data&, std::_Any_dat... (973 times, avg 1 ms)
1810 ms: std::__detail::_BracketMatcher<$>::_BracketMatcher(std::__detail::_B... (112 times, avg 16 ms)
1793 ms: nix::fetchers::GitInputScheme::fetch(nix::ref<$>, nix::fetchers::Inp... (1 times, avg 1793 ms)
1759 ms: std::_Rb_tree<$>::_M_get_insert_unique_pos(std::__cxx11::basic_strin... (281 times, avg 6 ms)
1722 ms: bool nlohmann::json_abi_v3_11_3::detail::parser<$>::sax_parse_intern... (19 times, avg 90 ms)
1677 ms: boost::io::basic_altstringbuf<$>::overflow(int) (194 times, avg 8 ms)
1674 ms: std::__cxx11::basic_string<$>::_M_mutate(unsigned long, unsigned lon... (249 times, avg 6 ms)
1660 ms: std::_Rb_tree_node<$>* std::_Rb_tree<$>::_M_copy<$>(std::_Rb_tree_no... (304 times, avg 5 ms)
1599 ms: bool nlohmann::json_abi_v3_11_3::detail::parser<$>::sax_parse_intern... (19 times, avg 84 ms)
1568 ms: void std::__detail::_Compiler<$>::_M_insert_bracket_matcher<$>(bool) (112 times, avg 14 ms)
1541 ms: std::__shared_ptr<$>::~__shared_ptr() (531 times, avg 2 ms)
1539 ms: nlohmann::json_abi_v3_11_3::detail::serializer<$>::dump_escaped(std:... (41 times, avg 37 ms)
1471 ms: void std::__detail::_Compiler<$>::_M_insert_character_class_matcher<... (112 times, avg 13 ms)
After messing with the regex (notice std::__detail::_Compiler vanishes
here, but I don't know why):
**** Function sets that took longest to compile / optimize:
8054 ms: void boost::io::detail::put<$>(boost::io::detail::put_holder<$> cons... (177 times, avg 45 ms)
4313 ms: std::_Rb_tree<$>::_M_erase(std::_Rb_tree_node<$>*) (1217 times, avg 3 ms)
3259 ms: boost::stacktrace::detail::to_string_impl_base<boost::stacktrace::de... (137 times, avg 23 ms)
3045 ms: void boost::io::detail::mk_str<$>(std::__cxx11::basic_string<$>&, ch... (177 times, avg 17 ms)
2314 ms: std::_Rb_tree<$>::_M_get_insert_hint_unique_pos(std::_Rb_tree_const_... (207 times, avg 11 ms)
1923 ms: std::_Rb_tree_iterator<$> std::_Rb_tree<$>::_M_emplace_hint_unique<$... (216 times, avg 8 ms)
1817 ms: bool nlohmann::json_abi_v3_11_3::detail::parser<$>::sax_parse_intern... (18 times, avg 100 ms)
1816 ms: toml::result<$> toml::detail::sequence<$>::invoke<$>(toml::detail::l... (93 times, avg 19 ms)
1788 ms: nlohmann::json_abi_v3_11_3::detail::serializer<$>::dump(nlohmann::js... (40 times, avg 44 ms)
1749 ms: std::_Rb_tree<$>::_M_get_insert_unique_pos(std::__cxx11::basic_strin... (278 times, avg 6 ms)
1724 ms: std::__cxx11::basic_string<$>::_M_mutate(unsigned long, unsigned lon... (248 times, avg 6 ms)
1697 ms: boost::io::basic_altstringbuf<$>::overflow(int) (194 times, avg 8 ms)
1684 ms: nix::fetchers::GitInputScheme::fetch(nix::ref<$>, nix::fetchers::Inp... (1 times, avg 1684 ms)
1680 ms: std::_Rb_tree_node<$>* std::_Rb_tree<$>::_M_copy<$>(std::_Rb_tree_no... (303 times, avg 5 ms)
1589 ms: bool nlohmann::json_abi_v3_11_3::detail::parser<$>::sax_parse_intern... (18 times, avg 88 ms)
1483 ms: non-virtual thunk to boost::wrapexcept<$>::~wrapexcept() (181 times, avg 8 ms)
1447 ms: nlohmann::json_abi_v3_11_3::detail::serializer<$>::dump_escaped(std:... (40 times, avg 36 ms)
1441 ms: std::__shared_ptr<$>::~__shared_ptr() (496 times, avg 2 ms)
1420 ms: boost::stacktrace::basic_stacktrace<$>::init(unsigned long, unsigned... (137 times, avg 10 ms)
1396 ms: boost::basic_format<$>::~basic_format() (194 times, avg 7 ms)
1290 ms: std::__cxx11::basic_string<$>::_M_replace_cold(char*, unsigned long,... (231 times, avg 5 ms)
1258 ms: std::vector<$>::~vector() (354 times, avg 3 ms)
1222 ms: std::__cxx11::basic_string<$>::_M_replace(unsigned long, unsigned lo... (231 times, avg 5 ms)
1194 ms: std::_Rb_tree<$>::_M_get_insert_hint_unique_pos(std::_Rb_tree_const_... (49 times, avg 24 ms)
1186 ms: bool tao::pegtl::internal::sor<$>::match<$>(std::integer_sequence<$>... (1 times, avg 1186 ms)
1149 ms: std::__detail::_Executor<$>::_M_dfs(std::__detail::_Executor<$>::_Ma... (70 times, avg 16 ms)
1123 ms: toml::detail::sequence<$>::invoke(toml::detail::location&) (69 times, avg 16 ms)
1110 ms: nlohmann::json_abi_v3_11_3::basic_json<$>::json_value::destroy(nlohm... (55 times, avg 20 ms)
1079 ms: std::_Function_handler<$>::_M_manager(std::_Any_data&, std::_Any_dat... (541 times, avg 1 ms)
1033 ms: nlohmann::json_abi_v3_11_3::detail::lexer<$>::scan_number() (20 times, avg 51 ms)
Change-Id: I10af282bcd4fc39c2d3caae3453e599e4639c70b
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Ref #359.
Change-Id: Ia45530ddee25fa9fc399ff10738bb0d8bbc8b221
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Fixes:
- Identifiers starting with _ are prohibited
- Some driveby header dependency cleaning which wound up with doing some
extra fixups.
- Fucking C style casts, man. C++ made these 1000% worse by letting you
also do memory corruption with them with references.
- Remove casts to Expr * where ExprBlackHole is an incomplete type by
introducing an explicitly-cast eBlackHoleAddr as Expr *.
- An incredibly illegal cast of the text bytes of the StorePath hash
into a size_t directly. You can't DO THAT.
Replaced with actually parsing the hash so we get 100% of the bits
being entropy, then memcpying the start of the hash. If this shows
up in a profile we should just make the hash parser faster with a
lookup table or something sensible like that.
- This horrendous bit of UB which I thankfully slapped a deprecation
warning on, built, and it didn't trigger anywhere so it was dead
code and I just deleted it. But holy crap you *cannot* do that.
inline void mkString(const Symbol & s)
{
mkString(((const std::string &) s).c_str());
}
- Some wrong lints. Lots of wrong macro lints, one wrong
suspicious-sizeof lint triggered by the template being instantiated
with only pointers, but the calculation being correct for both
pointers and not-pointers.
- Exceptions in destructors strike again. I tried to catch the
exceptions that might actually happen rather than all the exceptions
imaginable. We can let the runtime hard-kill it on other exceptions
imo.
Change-Id: I71761620846cba64d66ee7ca231b20c061e69710
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Change-Id: I5566a9858ba255f4ac5051d1368c7dfb24460f0a
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This makes no changes to logic but makes the `ApplyConfigOptions` value
available to consumers.
Change-Id: I88cf53d38faac8472c556aee55c13d0acbd1e5db
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this makes WorkResult copyable, and just all around easier to deal with.
in the future we'll need this to let Goal::work() return a promise for a
WorkResult (or even just a Finished) that can be awaited by other goals.
Change-Id: Ic5a1ce04c5a0f8e683bd00a2ed2b77a2e28989c1
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Change-Id: I9345fe272d6df5bd592621ce2da369fc1cd36d6d
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* changes:
libutil: delete unused boost context cruft
build: remove approximately 400 seconds of CPU time (30%)
fix: use http proxy for s3 access
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this should be done where we're actually trying to build something, not
in the main worker loop that shouldn't have to be aware of such details
Change-Id: I07276740c0e2e5591a8ce4828a4bfc705396527e
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This caused an absolute saga which I would not like anyone else to have
to experience. Let's put in a laser targeted error message that
diagnoses this exact problem.
Fixes: https://git.lix.systems/lix-project/lix/issues/484
Change-Id: I2a79f04aeb4a1b67c10115e5e39501d958836298
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I don't know why the AWS sdk disabled it by default. It would be nice
to have test coverage of the s3 store or proxies, but neither currently
exist.
Fixes: https://git.lix.systems/lix-project/lix/issues/433
Change-Id: If1e76169a3d66dbec2e926af0d0d0eccf983b97b
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There have been multiple setting types for paths that are supposed to be
canonicalised, depending on whether zero or one, one, or any number of paths is
to be specified. Naturally, they behaved in slightly different ways in the
code. Simplify things by unifying them and removing special behaviour (mainly
the "multiple paths type can coerce to boolean" thing).
Change-Id: I7c1ce95e9c8e1829a866fb37d679e167811e9705
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it's no longer needed for anything, and not even a great idea.
Change-Id: Ia7a59e1e3f9d8f4ad2ac3b054e38485157c210a6
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this can be a proper WorkResult now. childTerminated is unfortunately a
lot more stubborn and won't be made private for quite a while yet. once
we can get rid of the Worker poll loop that *should* be possible though
Change-Id: I2218df202da5cb84e852f6a37e4c20367495b617
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we'll need this once we want to pass extra information out of accepting
replies, such as fd sets or possibly even async output reader promises.
Change-Id: I5e2f18cdb80b0d2faf3067703cc18bd263329b3f
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don't keep fds open we're not using. currently this does not cause any
problems, but it does increase the size of our fd table needlessly and
in the future, when we have proper async processing, having builderOut
open in the daemon once the hook has been fully started is problematic
Change-Id: I6e7fb773b280b042873103638d3e04272ca1e4fc
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