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2024-08-08tree-wide: fix a pile of lintsJade Lovelace
This: - Converts a bunch of C style casts into C++ casts. - Removes some very silly pointer subtraction code (which is no more or less busted on i686 than it began) - Fixes some "technically UB" that never had to be UB in the first place. - Makes finally follow the noexcept status of the inner function. Maybe in the future we should ban the function from not being noexcept, but that is not today. - Makes various locally-used exceptions inherit from std::exception. Change-Id: I22e66972602604989b5e494fd940b93e0e6e9297
2024-07-20libutil: make basic loggers thread-safeeldritch horrors
SimpleLogger is not fully thread-safe, and all loggers that wrap it are also not safe accordingly. this does not affect much, but in rare cases it can cause interleaving of messages on stderr when used with the json or raw log formats. the fix applied here is a bit of a hack, but fixing this properly requires rearchitecting the logger infrastructure. nested loggers are not the most natural abstraction here, and it is biting us. Change-Id: Ifbf34fe1e85c60e73b59faee50e7411c7b5e7c12
2024-07-20libutil: remove warnOnce macroeldritch horrors
it's only used once, and even that one use is highly questionable. more instances of warnOnce should be much more principled than this has been Change-Id: I5856570c99cb44462e700d753d0c706a5db03c4b
2024-07-08libmain: clear display attributes in the multiline progress barAlois Wohlschlager
Activities can set display attributes in their log output using the "Select Graphics Rendition" functionality. To prevent interfering with subsequent text displayed, these should be reset after writing the log line. The multiline progress bar neglected to do this, resulting for example in a colorised "building …" header in the next line. Reset the attributes properly, like the standard progress bar already does. Change-Id: I1dc69f4a1d747a76b83e8721a72d9bb0e5554488
2024-07-02Merge "Revert "Revert "bump the extra --version info from info to notice, ↵Qyriad
-vv -> -v""" into main
2024-07-02Revert "Revert "bump the extra --version info from info to notice, -vv -> -v""Qyriad
This reverts commit 9f16a20f3d35dbc13ba6c8830745e9fc40d408eb. Since c55e93ca2, the original reason for reverting d003dcd7f no longer applies. Change-Id: If88f8555a6060d0530dcfecdf55afaa40afd1ad9
2024-07-02libmain: better fix for #424, #425eldritch horrors
not printing activities at all when no progress information is available hides *all* progress information from e.g. flake show. this is not ideal and needs to be fixed, but the fix *still* has problems with flake show: in multiline mode we will overwrite all useful flake show output as soon as the progress bar is redrawn. flake show output is also mangled in any number of other situations (like -v being set), so we should probably be not too worried about it and fix progress reporting properly another day Change-Id: I6d39d670e261bbae00560b6a8e15dec8e16b35c4
2024-07-01tree-wide: unify progress bar inactive and paused statesAlois Wohlschlager
Previously, the progress bar had two subtly different states in which the bar would not actually render, both with their own shortcomings: inactive (which was irreversible) and paused (reversible, but swallowing logs). Furthermore, there was no way of resetting the statistics, so a very bad solution was implemented (243c0f18dae2a08ea0e46f7ff33277c63f7506d7) that would create a new logger for each line of the repl, leaking the previous one and discarding the value of printBuildLogs. Finally, if stderr was not attached to a TTY, the update thread was started even though the logger was not active, violating the invariant required by the destructor (which is not observed because the logger is leaked). In this commit, the two aforementioned states are unified into a single one, which can be exited again, correctly upholds the invariant that the update thread is only running while the progress bar is active, and does not swallow logs. The latter change in behavior is not expected to be a problems in the rare cases where the paused state was used before, since other loggers (like the simple one) don't exhibit it anyway. The startProgressBar/stopProgressBar API is removed due to being a footgun, and a new method for properly resetting the progress is added. Co-Authored-By: Qyriad <qyriad@qyriad.me> Change-Id: I2b7c3eb17d439cd0c16f7b896cfb61239ac7ff3a
2024-06-26libmain: don't print empty lineseldritch horrors
this most notably affects `nix eval`: if there is no progress bar to be shown and no activities going on we should not print anything at all. a progress bar with no activities would print a bunch of terminal escapes *and a space*, which is not helpful in simple cases like nix eval -E 1. notably this does *not* affect nix eval called on non-terminal outputs, but it is slightly confusing nevertheless (and not difficult to avoid). fixes https://git.lix.systems/lix-project/lix/issues/424 Change-Id: Iee793c79ba5a485d6606e0d292ed2eae6dfb7216
2024-06-24libmain/progress-bar: move implementation out of the headerAlois Wohlschlager
Change-Id: Ib4b42ebea290ee575294df6b2f17a38a5d850b80
2024-06-23mildly refactor the renderActivity if hell-chainQyriad
This is primarily for readability, but iwrc chaining std::string's operator+ is also pretty scuffed performance-wise, and this was doing a lot of operator+ chainging. Change-Id: I9f25235df153eb2bbb491f1ff7ebbeed9a8ec985
2024-06-23libutil: return Pid from startProcess, not pid_teldritch horrors
Change-Id: Icc8a15090c77f54ea7d9220aadedcd4a19922814
2024-06-23libutil: give Pid proper resource semanticseldritch horrors
copy-constructing or assigning from pid_t can easily lead to duplicate Pid instances for the same process if a pid_t was used carelessly, and Pid itself was copy-constructible. both could cause surprising results such as killing processes twice (which could become very problemantic, but luckily modern systems don't reuse PIDs all that quickly), or more than one piece of the code believing it owns a process when neither do Change-Id: Ifea7445f84200b34c1a1d0acc2cdffe0f01e20c6
2024-06-23libutil: make Pid -> pid_t operations expliciteldritch horrors
Change-Id: I3137cc140590001fe7ba542844e735944a0a9255
2024-06-22libmain: add progress bar with multiple status linesFinn Behrens
Add the log-formats `multiline` and `multiline-with-logs` which offer multiple current active building status lines. Change-Id: Idd8afe62f8591b5d8b70e258c5cefa09be4cab03
2024-06-20add a basic libmain test for the progress bar renderingQyriad
Hooray for leaky abstraction allowing us to test this particular part of the render pipeline. Change-Id: Ie0f251ff874f63324e6a9c6388b84ec6507eeae2
2024-06-20use a type alias for ProgressBar's chosen time point typeQyriad
Change-Id: I621a455b1daba806fc498958aee7931fbfc55445
2024-06-20extract ProgressBar declaration into its header fileQyriad
Change-Id: Ica9e2ec41d99eaa196a0d535501edf45c589b2b6
2024-06-20slight cleanup to ProgressBar::getStatus()Qyriad
Binaries were identical before and after this commit on our machine Change-Id: I6f8bfbe3298d6c5f43d5702c7a1e05cb180226cc
2024-06-18libmain: fix UB in verbosity assignmentJade Lovelace
This was generating an out-of-range verbosity value. We should just process it as an int and then convert to verbosity with a clamping function, which trivially avoids any domain type violations. Change-Id: I0ed20da8e1496a1225ff3008b76827d99265d404
2024-06-06build: expose option to enable or disable precompiled std headersQyriad
They are enabled by default, and Meson will also prints whether or not they're enabled at the bottom at the end of configuration. Change-Id: I48db238510bf9e74340b86f243f4bbe360794281
2024-06-01chore: rebrand Nix to Lix when it makes senseRaito Bezarius
Here's my guide so far: $ rg '((?!(recursive).*) Nix (?!(daemon|store|expression|Rocks!|Packages|language|derivation|archive|account|user|sandbox|flake).*))' -g '!doc/' --pcre2 All items from this query have been tackled. For the documentation side: that's for https://git.lix.systems/lix-project/lix/issues/162. Additionally, all remaining references to github.com/NixOS/nix which were not relevant were also replaced. Fixes: https://git.lix.systems/lix-project/lix/issues/148. Fixes: https://git.lix.systems/lix-project/lix/issues/162. Change-Id: Ib3451fae5cb8ab8cd9ac9e4e4551284ee6794545 Signed-off-by: Raito Bezarius <raito@lix.systems>
2024-05-30build-time: remove 20% more by PCH'ing C++ stdlibJade Lovelace
It seems like someone implemented precompiled headers a long time ago and then it never got ported to meson or maybe didn't work at all. This is, however, blessedly easy to simply implement. I went looking for `#define` that could affect the result of precompiling the headers, and as far as I can tell we aren't doing any of that, so this should truly just be free build time savings. Previous state: Compilation (551 times): Parsing (frontend): 1302.1 s Codegen & opts (backend): 956.3 s New state: **** Time summary: Compilation (567 times): Parsing (frontend): 1123.0 s Codegen & opts (backend): 1078.1 s I wonder if the "regression" in codegen time is just doing the PCH operation a few times, because meson does it per-target. Change-Id: I664366b8069bab4851308b3a7571bea97ac64022
2024-05-29Remove 100s of CPU time (10%) from build times (1465s -> 1302s)Jade Lovelace
I saw that boost/lexical_cast was costing about 100s in CPU time on our compiles. We can fix this trivially by doing explicit template instantiation in exactly one place and eliminating all other includes of it, which is a code improvement anyway by hiding the boost. Before: ``` lix/lix2 » ClangBuildAnalyzer --analyze buildtimeold.bin Analyzing build trace from 'buildtimeold.bin'... **** Time summary: Compilation (551 times): Parsing (frontend): 1465.3 s Codegen & opts (backend): 1110.9 s <snip> **** Expensive headers: 178153 ms: ../src/libcmd/installable-value.hh (included 52 times, avg 3426 ms), included via: 40x: command.hh 5x: command-installable-value.hh 3x: installable-flake.hh 2x: <direct include> 2x: installable-attr-path.hh 176217 ms: ../src/libutil/error.hh (included 246 times, avg 716 ms), included via: 36x: command.hh installable-value.hh installables.hh derived-path.hh config.hh experimental-features.hh 12x: globals.hh config.hh experimental-features.hh 11x: file-system.hh file-descriptor.hh 6x: serialise.hh strings.hh 6x: <direct include> 6x: archive.hh serialise.hh strings.hh ... 173243 ms: ../src/libstore/store-api.hh (included 152 times, avg 1139 ms), included via: 55x: <direct include> 39x: command.hh installable-value.hh installables.hh 7x: libexpr.hh 4x: local-store.hh 4x: command-installable-value.hh installable-value.hh installables.hh 3x: binary-cache-store.hh ... 170482 ms: ../src/libutil/serialise.hh (included 201 times, avg 848 ms), included via: 37x: command.hh installable-value.hh installables.hh built-path.hh realisation.hh hash.hh 14x: store-api.hh nar-info.hh hash.hh 11x: <direct include> 7x: primops.hh eval.hh attr-set.hh nixexpr.hh value.hh source-path.hh archive.hh 7x: libexpr.hh value.hh source-path.hh archive.hh 6x: fetchers.hh hash.hh ... 169397 ms: ../src/libcmd/installables.hh (included 53 times, avg 3196 ms), included via: 40x: command.hh installable-value.hh 5x: command-installable-value.hh installable-value.hh 3x: installable-flake.hh installable-value.hh 2x: <direct include> 1x: installable-derived-path.hh 1x: installable-value.hh ... 159740 ms: ../src/libutil/strings.hh (included 221 times, avg 722 ms), included via: 37x: command.hh installable-value.hh installables.hh built-path.hh realisation.hh hash.hh serialise.hh 19x: <direct include> 14x: store-api.hh nar-info.hh hash.hh serialise.hh 11x: serialise.hh 7x: primops.hh eval.hh attr-set.hh nixexpr.hh value.hh source-path.hh archive.hh serialise.hh 7x: libexpr.hh value.hh source-path.hh archive.hh serialise.hh ... 156796 ms: ../src/libcmd/command.hh (included 51 times, avg 3074 ms), included via: 42x: <direct include> 7x: command-installable-value.hh 2x: installable-attr-path.hh 150392 ms: ../src/libutil/types.hh (included 251 times, avg 599 ms), included via: 36x: command.hh installable-value.hh installables.hh path.hh 11x: file-system.hh 10x: globals.hh 6x: fetchers.hh 6x: serialise.hh strings.hh error.hh 5x: archive.hh ... 133101 ms: /nix/store/644b90j1vms44nr18yw3520pzkrg4dd1-boost-1.81.0-dev/include/boost/lexical_cast.hpp (included 226 times, avg 588 ms), included via : 37x: command.hh installable-value.hh installables.hh built-path.hh realisation.hh hash.hh serialise.hh strings.hh 19x: file-system.hh 11x: store-api.hh nar-info.hh hash.hh serialise.hh strings.hh 7x: primops.hh eval.hh attr-set.hh nixexpr.hh value.hh source-path.hh archive.hh serialise.hh strings.hh 7x: libexpr.hh value.hh source-path.hh archive.hh serialise.hh strings.hh 6x: eval.hh attr-set.hh nixexpr.hh value.hh source-path.hh archive.hh serialise.hh strings.hh ... 132887 ms: /nix/store/h2abv2l8irqj942i5rq9wbrj42kbsh5y-gcc-12.3.0/include/c++/12.3.0/memory (included 262 times, avg 507 ms), included via: 36x: command.hh installable-value.hh installables.hh path.hh types.hh ref.hh 16x: gtest.h 11x: file-system.hh types.hh ref.hh 10x: globals.hh types.hh ref.hh 10x: json.hpp 6x: serialise.hh ... done in 0.6s. ``` After: ``` lix/lix2 » maintainers/buildtime_report.sh build Processing all files and saving to '/home/jade/lix/lix2/maintainers/../buildtime.bin'... done in 0.6s. Run 'ClangBuildAnalyzer --analyze /home/jade/lix/lix2/maintainers/../buildtime.bin' to analyze it. Analyzing build trace from '/home/jade/lix/lix2/maintainers/../buildtime.bin'... **** Time summary: Compilation (551 times): Parsing (frontend): 1302.1 s Codegen & opts (backend): 956.3 s <snip> **** Expensive headers: 178145 ms: ../src/libutil/error.hh (included 246 times, avg 724 ms), included via: 36x: command.hh installable-value.hh installables.hh derived-path.hh config.hh experimental-features.hh 12x: globals.hh config.hh experimental-features.hh 11x: file-system.hh file-descriptor.hh 6x: <direct include> 6x: serialise.hh strings.hh 6x: fetchers.hh hash.hh serialise.hh strings.hh ... 154043 ms: ../src/libcmd/installable-value.hh (included 52 times, avg 2962 ms), included via: 40x: command.hh 5x: command-installable-value.hh 3x: installable-flake.hh 2x: <direct include> 2x: installable-attr-path.hh 153593 ms: ../src/libstore/store-api.hh (included 152 times, avg 1010 ms), included via: 55x: <direct include> 39x: command.hh installable-value.hh installables.hh 7x: libexpr.hh 4x: local-store.hh 4x: command-installable-value.hh installable-value.hh installables.hh 3x: binary-cache-store.hh ... 149948 ms: ../src/libutil/types.hh (included 251 times, avg 597 ms), included via: 36x: command.hh installable-value.hh installables.hh path.hh 11x: file-system.hh 10x: globals.hh 6x: fetchers.hh 6x: serialise.hh strings.hh error.hh 5x: archive.hh ... 144560 ms: ../src/libcmd/installables.hh (included 53 times, avg 2727 ms), included via: 40x: command.hh installable-value.hh 5x: command-installable-value.hh installable-value.hh 3x: installable-flake.hh installable-value.hh 2x: <direct include> 1x: installable-value.hh 1x: installable-derived-path.hh ... 136585 ms: ../src/libcmd/command.hh (included 51 times, avg 2678 ms), included via: 42x: <direct include> 7x: command-installable-value.hh 2x: installable-attr-path.hh 133394 ms: /nix/store/h2abv2l8irqj942i5rq9wbrj42kbsh5y-gcc-12.3.0/include/c++/12.3.0/memory (included 262 times, avg 509 ms), included via: 36x: command.hh installable-value.hh installables.hh path.hh types.hh ref.hh 16x: gtest.h 11x: file-system.hh types.hh ref.hh 10x: globals.hh types.hh ref.hh 10x: json.hpp 6x: serialise.hh ... 89315 ms: ../src/libstore/derived-path.hh (included 178 times, avg 501 ms), included via: 37x: command.hh installable-value.hh installables.hh 25x: store-api.hh realisation.hh 7x: primops.hh eval.hh attr-set.hh nixexpr.hh value.hh context.hh 6x: eval.hh attr-set.hh nixexpr.hh value.hh context.hh 6x: libexpr.hh value.hh context.hh 6x: shared.hh ... 87347 ms: /nix/store/h2abv2l8irqj942i5rq9wbrj42kbsh5y-gcc-12.3.0/include/c++/12.3.0/ostream (included 273 times, avg 319 ms), included via: 35x: command.hh installable-value.hh installables.hh path.hh types.hh ref.hh memory unique_ptr.h 12x: regex sstream istream 10x: file-system.hh types.hh ref.hh memory unique_ptr.h 10x: gtest.h memory unique_ptr.h 10x: globals.hh types.hh ref.hh memory unique_ptr.h 6x: fetchers.hh types.hh ref.hh memory unique_ptr.h ... 85249 ms: ../src/libutil/config.hh (included 213 times, avg 400 ms), included via: 37x: command.hh installable-value.hh installables.hh derived-path.hh 20x: globals.hh 20x: logging.hh 16x: store-api.hh logging.hh 6x: <direct include> 6x: eval.hh attr-set.hh nixexpr.hh value.hh context.hh derived-path.hh ... done in 0.5s. ``` Change-Id: I27f0a2d566db17832cd9be935f12efe7f95b92d0
2024-05-29util.hh: Delete remaining file and clean up headersTom Hubrecht
Change-Id: Ic1f68e6af658e94ef7922841dd3ad4c69551ef56
2024-05-29util.{hh,cc}: Split out current-process.{hh,cc}Tom Hubrecht
Change-Id: I77095b9d37e85310075bada7a076ccd482c28e47
2024-05-29util.{hh,cc}: Split out processes.{hh,cc}Tom Hubrecht
Change-Id: I39280dc40ca3f7f9007bc6c898ffcf760e2238b7
2024-05-29util.{hh,cc}: Split out terminal.{hh,cc}Tom Hubrecht
Change-Id: I9de2296b4012d50f540124001d54d6ca3be4c6da
2024-05-28util.{hh,cc}: Split out environment-variables.{hh,cc}Tom Hubrecht
Change-Id: Icff0aa33fda5147bd5dbe256a0b9d6a6c8a2c3f6
2024-05-26Revert "bump the extra --version info from info to notice, -vv -> -v"Qyriad
This reverts commit d003dcd7f4ce6b16c3494398a4edd36e668a1b46. d0390b5cf¹ bumped the default verbosity of nix3 commands, making this change obsolete. [1]: d0390b5cf2d232febaa89aa6d8b07c547513a460 Change-Id: I1ddc36ea4514cd8d2855ff334accf6e98c210879
2024-05-23packaging: rename nixexpr -> lixexpr and so onJade Lovelace
This breaks downstreams linking to us on purpose to make sure that if someone is linking to Lix they're doing it on purpose and crucially not mixing up Nix and Lix versions in compatibility code. We still need to fix the internal includes to follow the same schema so we can drop the single-level include system entirely. However, this requires a little more effort. This adds pkg-config for libfetchers and config.h. Migration path: expr.hh -> lix/libexpr/expr.hh nix/config.h -> lix/config.h To apply this migration automatically, remove all `<nix/>` from includes, so: `#include <nix/expr.hh>` -> `#include <expr.hh>`. Then, the correct paths will be resolved from the tangled mess, and the clang-tidy automated fix will work. Then run the following for out of tree projects: ``` lix_root=$HOME/lix (cd $lix_root/clang-tidy && nix develop -c 'meson setup build && ninja -C build') run-clang-tidy -checks='-*,lix-fixincludes' -load=$lix_root/clang-tidy/build/liblix-clang-tidy.so -p build/ -fix src ``` Related: https://git.lix.systems/lix-project/nix-eval-jobs/pulls/5 Fixes: https://git.lix.systems/lix-project/lix/issues/279 Change-Id: I7498e903afa6850a731ef8ce77a70da6b2b46966
2024-05-13libutil: remove the interrupt-blocking codeAlois Wohlschlager
The interrupt-blocking code was originally introduced 20 years ago so that trying to log an error message does not result in an interrupt exception being thrown and then going unhandled (c8d3882cdc8f9e22c58af285c1996265c1af75d5). However, the logging code does not check for interrupts any more (054be5025762c5e1c7e853c4fa5d7eed8da1727f), so this reasoning is no longer applicable. Delete this code so that later interrupts are unblocked again, for example in the next line entered into the repl. Closes: https://git.lix.systems/lix-project/lix/issues/296 Change-Id: I48253f5f4272e75001148c13046e709ef5427fbd
2024-05-10bump the extra --version info from info to notice, -vv -> -vQyriad
requiring *two* --verbose to print extra information on --version is a weird flex Change-Id: I05d043da1bf583f34e9d1fc206144ea4ca9a859d
2024-05-07remove the autoconf+Make buildsystemQyriad
We're not using it anymore. Any leftover bugs in the Meson buildsystem are now just bugs. Closes #249. Change-Id: I0465a0c37ae819f94d40e7829f5bff046aa63d73
2024-03-29meson: install pkg-config files for librarieseldritch horrors
Change-Id: I14b9d81d09f188eacfb9c68bcfb84751c18e3779
2024-03-27progress-bar.cc: fix signed overflowJade Lovelace
this was caused by the use of std::chrono::duration::max() which gets multiplied by some ratio to calculate nanoseconds to wait. then, it explodes because that is a signed integer overflow. this was definitely a bug. error below: /nix/store/fdiknsmnnczx6brsbppyljcs9hqckawk-gcc-12.3.0/include/c++/12.3.0/bits/chrono.h:225:38: runtime error: signed integer overflow: 9223372036854775807 * 1000000 cannot be represented in type 'long' #0 0x736d376b2b69 in std::chrono::duration<long, std::ratio<1l, 1000000000l>> std::chrono::__duration_cast_impl<std::chrono: :duration<long, std::ratio<1l, 1000000000l>>, std::ratio<1000000l, 1l>, long, false, true>::__cast<long, std::ratio<1l, 1000l>>( std::chrono::duration<long, std::ratio<1l, 1000l>> const&) /nix/store/fdiknsmnnczx6brsbppyljcs9hqckawk-gcc-12.3.0/include/c++/12 .3.0/bits/chrono.h:225:38 #1 0x736d376b2b69 in std::enable_if<__is_duration<std::chrono::duration<long, std::ratio<1l, 1000000000l>>>::value, std::chr ono::duration<long, std::ratio<1l, 1000000000l>>>::type std::chrono::duration_cast<std::chrono::duration<long, std::ratio<1l, 10 00000000l>>, long, std::ratio<1l, 1000l>>(std::chrono::duration<long, std::ratio<1l, 1000l>> const&) /nix/store/fdiknsmnnczx6brs bppyljcs9hqckawk-gcc-12.3.0/include/c++/12.3.0/bits/chrono.h:270:9 #2 0x736d376b2b69 in std::enable_if<__is_duration<std::chrono::duration<long, std::ratio<1l, 1000000000l>>>::value, std::chr ono::duration<long, std::ratio<1l, 1000000000l>>>::type std::chrono::ceil<std::chrono::duration<long, std::ratio<1l, 1000000000l >>, long, std::ratio<1l, 1000l>>(std::chrono::duration<long, std::ratio<1l, 1000l>> const&) /nix/store/fdiknsmnnczx6brsbppyljcs9 hqckawk-gcc-12.3.0/include/c++/12.3.0/bits/chrono.h:386:14 #3 0x736d376b2b69 in std::cv_status std::condition_variable::wait_for<long, std::ratio<1l, 1000l>>(std::unique_lock<std::mut ex>&, std::chrono::duration<long, std::ratio<1l, 1000l>> const&) /nix/store/fdiknsmnnczx6brsbppyljcs9hqckawk-gcc-12.3.0/include/ c++/12.3.0/condition_variable:164:6 #4 0x736d376b1ee9 in std::cv_status nix::Sync<nix::ProgressBar::State, std::mutex>::Lock::wait_for<long, std::ratio<1l, 1000 l>>(std::condition_variable&, std::chrono::duration<long, std::ratio<1l, 1000l>> const&) /home/jade/lix/lix/src/libutil/sync.hh: 65:23 #5 0x736d376b1ee9 in nix::ProgressBar::ProgressBar(bool)::'lambda'()::operator()() const /home/jade/lix/lix/src/libmain/prog ress-bar.cc:99:27 #6 0x736d36de25c2 in execute_native_thread_routine (/nix/store/a3zlvnswi1p8cg7i9w4lpnvaankc7dxx-gcc-12.3.0-lib/lib/libstdc++ .so.6+0xe05c2) #7 0x736d36b6b0e3 in start_thread (/nix/store/1zy01hjzwvvia6h9dq5xar88v77fgh9x-glibc-2.38-44/lib/libc.so.6+0x8b0e3) (BuildId : 287831bffdbdde0ec25dbd021d12bdfc0ab9f5ff) #8 0x736d36bed5e3 in __clone (/nix/store/1zy01hjzwvvia6h9dq5xar88v77fgh9x-glibc-2.38-44/lib/libc.so.6+0x10d5e3) (BuildId: 28 7831bffdbdde0ec25dbd021d12bdfc0ab9f5ff) SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /nix/store/fdiknsmnnczx6brsbppyljcs9hqckawk-gcc-12.3.0/include/c++/12.3. 0/bits/chrono.h:225:38 in Change-Id: Ia0303242cdfd5d49385ae9e99718d709625a4633
2024-03-26Merge "libmain: version printer uses `Lix` instead of `Nix`" into mainjade
2024-03-25Overhaul completions, redo #6693 (#8131)John Ericson
As I complained in https://github.com/NixOS/nix/pull/6784#issuecomment-1421777030 (a comment on the wrong PR, sorry again!), #6693 introduced a second completions mechanism to fix a bug. Having two completion mechanisms isn't so nice. As @thufschmitt also pointed out, it was a bummer to go from `FlakeRef` to `std::string` when collecting flake refs. Now it is `FlakeRefs` again. The underlying issue that sought to work around was that completion of arguments not at the end can still benefit from the information from latter arguments. To fix this better, we rip out that change and simply defer all completion processing until after all the (regular, already-complete) arguments have been passed. In addition, I noticed the original completion logic used some global variables. I do not like global variables, because even if they save lines of code, they also obfuscate the architecture of the code. I got rid of them moved them to a new `RootArgs` class, which now has `parseCmdline` instead of `Args`. The idea is that we have many argument parsers from subcommands and what-not, but only one root args that owns the other per actual parsing invocation. The state that was global is now part of the root args instead. This did, admittedly, add a bunch of new code. And I do feel bad about that. So I went and added a lot of API docs to try to at least make the current state of things clear to the next person. -- This is needed for RFC 134 (tracking issue #7868). It was very hard to modularize `Installable` parsing when there were two completion arguments. I wouldn't go as far as to say it is *easy* now, but at least it is less hard (and the completions test finally passed). Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io> Change-Id: If18cd5be78da4a70635e3fdcac6326dbfeea71a5 (cherry picked from commit 67eb37c1d0de28160cd25376e51d1ec1b1c8305b)
2024-03-25libmain: version printer uses `Lix` instead of `Nix`Raito Bezarius
Change-Id: I014ff24b900c0b9a48b7a63c8bb8b86cde3ebe54 Signed-off-by: Raito Bezarius <raito@lix.systems>
2024-03-22build: optionally build and install with mesonQyriad
This commit adds several meson.build, which successfully build and install Lix executables, libraries, and headers. Meson does not yet build docs, Perl bindings, or run tests, which will be added in following commits. As such, this commit does not remove the existing build system, or make it the default, and also as such, this commit has several FIXMEs and TODOs as notes for what should be done before the existing autoconf + make buildsystem can be removed and Meson made the default. This commit does not modify any source files. A Meson-enabled build is also added as a Hydra job, and to `nix flake check`. Change-Id: I667c8685b13b7bab91e281053f807a11616ae3d4
2024-03-17Delete hasPrefix and hasSuffix from the codebaseJade Lovelace
These now have equivalents in the standard lib in C++20. This change was performed with a custom clang-tidy check which I will submit later. Executed like so: ninja -C build && run-clang-tidy -checks='-*,nix-*' -load=build/libnix-clang-tidy.so -p .. -fix ../tests | tee -a clang-tidy-result Change-Id: I62679e315ff9e7ce72a40b91b79c3e9fc01b27e9
2024-03-11util.hh: split out signals stuffJade Lovelace
Copies part of the changes of ac89bb064aeea85a62b82a6daf0ecca7190a28b7 Change-Id: I9ce601875cd6d4db5eb1132d7835c5bab9f126d8
2024-03-09`:quit` in the debugger should quit the whole programeldritch horrors
(cherry picked from commit 2a8fe9a93837733e9dd9ed5c078734a35b203e14) Change-Id: I71dadfef6b24d9272b206e9e2c408040559d8a1c
2024-03-09libexpr: Support structured error classeseldritch horrors
While preparing PRs like #9753, I've had to change error messages in dozens of code paths. It would be nice if instead of EvalError("expected 'boolean' but found '%1%'", showType(v)) we could write TypeError(v, "boolean") or similar. Then, changing the error message could be a mechanical refactor with the compiler pointing out places the constructor needs to be changed, rather than the error-prone process of grepping through the codebase. Structured errors would also help prevent the "same" error from having multiple slightly different messages, and could be a first step towards error codes / an error index. This PR reworks the exception infrastructure in `libexpr` to support exception types with different constructor signatures than `BaseError`. Actually refactoring the exceptions to use structured data will come in a future PR (this one is big enough already, as it has to touch every exception in `libexpr`). The core design is in `eval-error.hh`. Generally, errors like this: state.error("'%s' is not a string", getAttrPathStr()) .debugThrow<TypeError>() are transformed like this: state.error<TypeError>("'%s' is not a string", getAttrPathStr()) .debugThrow() The type annotation has moved from `ErrorBuilder::debugThrow` to `EvalState::error`. (cherry picked from commit c6a89c1a1659b31694c0fbcd21d78a6dd521c732) Change-Id: Iced91ba4e00ca9e801518071fb43798936cbd05a
2024-03-04Merge pull request #9465 from obsidiansystems/build-direldritch horrors
Use `buildprefix` in a few more places (cherry picked from commit b6a3fde6b7a416929553e6be36fc991680ddf9ef) Change-Id: I2790663fa9f8242ac2db6582b7e421d2fdf42942
2024-03-04Merge pull request #8887 from obsidiansystems/bsd-cross-ciJohn Ericson
Support cross compiling to BSD and CI it (cherry picked from commit 1f3fc08c5994ca69c84c9e745d59ec2bb2fd820a) Change-Id: I415e92952afc661cfb5ef91a76c0637678a04a19
2023-08-11Prevent overriding virtual methods that are called in a destructorYorick van Pelt
Virtual methods are no longer valid once the derived destructor has run. This means the compiler is free to optimize them to be non-virtual. Found using clang-tidy
2023-04-28nix: Support the --repair flagEelco Dolstra
2023-04-07Move initLibUtil() from initNix to initLibStoreRobert Hensing
libutil is a dependency of libstore, so it should always be initialized as such. libutil is also a dependency of libmain. Being explicit about this dependency might be good, but not worth the slight code complexity until the library structure gets more advanced. Part of an effort to make it easier to initialize the right things, by moving code into the appropriate libraries.
2023-04-07libmain: Clarify the lack of initLibExpr()Robert Hensing
Quote Why not initLibExpr()? initGC() is essentially that, but detectStackOverflow is not an instance of the init function concept, as it may have to be invoked more than once per process. Furthermore, renaming initGC to initLibExpr is more trouble than it's worth at this time.