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2024-07-13libutil: add checked arithmetic toolsJade Lovelace
This is in preparation for adding checked arithmetic to the evaluator. Change-Id: I6e115ce8f5411feda1706624977a4dcd5efd4d13
2024-07-11libutil: rewrite RewritingSink as sourceeldritch horrors
the rewriting sink was just broken. when given a rewrite set that contained a key that is also a proper infix of another key it was possible to produce an incorrectly rewritten result if the writer used the wrong block size. fixing this duplicates rewriteStrings, to avoid this we'll rewrite rewriteStrings to use RewritingSource in a new mode that'll allow rewrites we had previously forbidden. Change-Id: I57fa0a9a994e654e11d07172b8e31d15f0b7e8c0
2024-07-05libutil: allow construction of sources from generatorseldritch horrors
Change-Id: I78ff8d0720f06bce731e26d5e1c53b1382bbd589
2024-07-03libutil: begin porting serialization to generatorseldritch horrors
generators are a better basis for serializers than streaming into sinks as we do currently for many reasons, such as being usable as sources if one wishes to (without requiring an intermediate sink to serialize full data sets into memory, or boost coroutines to turn sinks into sources), composing more naturally (as one can just yield a sub-generator instead of being forced to wrap entire substreams into clunky functions or even more clunky custom types to implement operator<< on), allowing wrappers to transform data with clear ownership semantics (removing the need for explicit memory allocations and Source wrappers), and many other things Change-Id: I361d89ff556354f6930d9204f55117565f2f7f20
2024-07-03libutil: generator type with on-yield value mappingeldritch horrors
this will be the basis of non-boost coroutines in lix. anything that is a boost coroutine *should* be representable with a Generator coroutine, and many things that are not currently boost coroutines but behave much like one (such as, notably, serializers) should be as well. this allows us to greatly simplify many things that look like iteration but aren't. Change-Id: I2cebcefa0148b631fb30df4c8cfa92167a407e34
2024-06-23libutil: add some serialize.hh serializer testseldritch horrors
Change-Id: I0116265a18bc44bba16c07bf419af70d5195f07d
2024-06-20BrotliDecompressionSource: don't bail out too earlyK900
If we've consumed the entire input, that doesn't actually mean we're done decompressing - there might be more output left. This worked (?) in most cases because the input and output sizes are pretty comparable, but sometimes they're not and then things get very funny. Change-Id: I73435a654a911b8ce25119f713b80706c5783c1b
2024-06-19libutil: add makeDecompressionSourceeldritch horrors
Change-Id: Iac7f24d79e24417436b9b5cbefd6af051aeea0a6
2024-05-29util.hh: Delete remaining file and clean up headersTom Hubrecht
Change-Id: Ic1f68e6af658e94ef7922841dd3ad4c69551ef56
2024-05-29util.{hh,cc}: Split out strings.{hh,cc}Tom Hubrecht
Change-Id: I4f642d1046d56b5db26f1b0296ee16a0e02d444a
2024-05-29util.{hh,cc}: Split out processes.{hh,cc}Tom Hubrecht
Change-Id: I39280dc40ca3f7f9007bc6c898ffcf760e2238b7
2024-05-29util.{hh,cc}: Split out file-system.{hh,cc}Tom Hubrecht
Change-Id: Ifa89a529e7e34e7291eca87d802d2f569cf2493e
2024-05-29util.{hh,cc}: Split out terminal.{hh,cc}Tom Hubrecht
Change-Id: I9de2296b4012d50f540124001d54d6ca3be4c6da
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
2024-05-07libutil: de-callback-ify computeClosureeldritch horrors
only two users of this function exist. only one used it in a way that even bears resemblance to asynchronicity, and even that one didn't do it right. fully async and parallel computation would have only worked if any getEdgesAsync never calls the continuation it receives itself, only from more derived callbacks running on other threads. calling it directly would cause the decoupling promise to be awaited immediately *on the original thread*, completely negating all nice async effects. Change-Id: I0aa640950cf327533a32dee410105efdabb448df
2024-05-03libutil: make rewriteStrings soundeldritch horrors
this is used in CA rewriting, replacement of placeholders in derivations, generating scripts for devShells, and some more places. in all of these transitive replacements are unsound, and overlapping replacements would be as well. there even is a test that transitive replacements do not happen (in the CA RewriteSink suite), but none for overlapping replacements. a minimally surprising binary rewriter surely would not do any of these replacements, the only reason we have not seen this break yet is probably that rewriteStrings is only called for store paths and things that look like store paths (and those should never overlap nor admit such transitive replacements) Change-Id: I6fc29f939d5061d9f56c752624a823ece8437c07
2024-05-02getNameFromURL(): Support uppercase characters in attribute namesEelco Dolstra
In particular, this makes it handle 'legacyPackages' correctly. (cherry picked from commit 936a3642264ac159f3f9093710be3465b70e0e89) Upstream-PR: https://github.com/NixOS/nix/pull/9657 Change-Id: Icc4efe02f7f8e90a2970589f72fd3d3cd4418d95
2024-04-30implement parsing human-readable names from URLsQyriad
Based off of commit 257b768436a0e8ab7887f9b790c5b92a7fe51ef5 Upstream-PR: https://github.com/NixOS/nix/pull/8678 Co-authored-by: Felix Uhl <felix.uhl@outlook.com> Change-Id: Idcb7f6191ca3310ef9dc854197f7798260c3f71d
2024-04-15abort with a descriptive message on bad HintFmt usageQyriad
Change-Id: Ic2f05572042343a8160fd971394372f5f2706fc4
2024-04-07Add `PathsSetting`Rebecca Turner
Change-Id: I1165f6ef033a5f757ca3716d3f8008ba36b01fd0
2024-04-05Revert "libutil: drop Pool resources on exceptional free"eldritch horrors
This reverts commit de2884b82b376d10de5c400d8e73bc7d98f195d2. Change-Id: I1fa301149d7c2ed3d266a40c15b2d010e12e44e6
2024-04-03Add `EscapeStringOptions` and `escapeString` testsRebecca Turner
Change-Id: I86ead2f969c9e03c9edfa51bbc92ee06393fd7d6
2024-03-31libutil: remove Pool::flushBadeldritch horrors
this was never actually used, and bad design in the first place—why should a bad resource be put back into the idle pool? just drop it. Change-Id: Idab8774bee19dadae0209d404c4fb86dd4aeba1e
2024-03-30libutil: drop Pool resources on exceptional freeeldritch horrors
if a scope owning a resource does not gracefully drop that resource while handling exceptions from deeper down the call stack we should assume the resource is invalid state and drop it. currently it *is* true that such cases do not cause resources to be freed, but thanks to validator misuses this has so far not caused any larger problem. Change-Id: Ie4f91bcd60a64d05c5ff9d22cc97954816d13b97
2024-03-29Add `pre-commit` checksRebecca Turner
The big ones here are `trim-trailing-whitespace` and `end-of-file-fixer` (which makes sure that every file ends with exactly one newline character). Change-Id: Idca73b640883188f068f9903e013cf0d82aa1123
2024-03-29Merge "Remove `HintFmt::operator%`" into mainwiggles dog
2024-03-26Move `shell_words` into its own fileRebecca Turner
Change-Id: I34c0ebfb6dcea49bf632d8880e04075335a132bf
2024-03-26Remove `HintFmt::operator%`Rebecca Turner
Change-Id: Ibcf1a7848b4b18ec9b0807628ff229079ae7a0fe
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
2024-03-09Merge pull request #9925 from 9999years/fmt-cleanupeldritch horrors
Cleanup `fmt.hh` (cherry picked from commit 47a1dbb4b8e7913cbb9b4d604728b912e76e4ca0) Change-Id: Id076a45cb39652f437fe3f8bda10c310a9894777
2024-03-04fix: `nlohmann::adl_serializer` for `std::optional` (#9147)eldritch horrors
This allows templates such as `NLOHMANN_DEFINE_TYPE_*` templates and other generators with things like `std::vector<std::optional<T>>`. Co-authored-by: John Ericson <John.Ericson@Obsidian.Systems> (cherry picked from commit 02bd821f2e71372d31bbe6700bd68086cc2ee70a) Change-Id: I8b0ebcf2af4226610dadd565962f2d2327415a03
2023-12-01Move tests to separate directories, and documentJohn Ericson
Today, with the tests inside a `tests` intermingled with the corresponding library's source code, we have a few problems: - We have to be careful that wildcards don't end up with tests being built as part of Nix proper, or test headers being installed as part of Nix proper. - Tests in libraries but not executables is not right: - It means each executable runs the previous unit tests again, because it needs the libraries. - It doesn't work right on Windows, which doesn't want you to load a DLL just for the side global variable . It could be made to work with the dlopen equivalent, but that's gross! This reorg solves these problems. There is a remaining problem which is that sibbling headers (like `hash.hh` the test header vs `hash.hh` the main `libnixutil` header) end up shadowing each other. This PR doesn't solve that. That is left as future work for a future PR. Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io> (cherry picked from commit 91b6833686a6a6d9eac7f3f66393ec89ef1d3b57) (cherry picked from commit a61e42adb528b3d40ce43e07c79368d779a8b624)