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2020-07-05 r/1217 chore(3p/nix/libstore): Link to nixproto libraryVincent Ambo2-0/+2
This isn't actually used yet, but forces the protos to be included in the build which is useful for iteration. Change-Id: I2abcaf297f34ae741f00ad0c929b226d5603c9d7 Reviewed-on: https://cl.tvl.fyi/c/depot/+/928 Tested-by: BuildkiteCI Reviewed-by: isomer <isomer@tvl.fyi>
2020-07-05 r/1216 feat(3p/nix): Add protobuf & gRPC dependencies and generate sourcesVincent Ambo4-2/+62
Adds dependencies on the gRPC & protobuf libraries, and implements Nix code to generate the C++ sources from the included proto definitions. This is theoretically supported via CMake, but practically doesn't work and I don't care to debug why. Doing it like this lets us instead add a CMake library target for our proto definitions based on the sources generated by Nix. Pros: * no need to deal with the gRPC CMake mess * it works! Cons: * iteration requires nix-shell restart Change-Id: Ie1fe9807fc96c49cb8f7161ba59d093456062b15 Reviewed-on: https://cl.tvl.fyi/c/depot/+/927 Tested-by: BuildkiteCI Reviewed-by: isomer <isomer@tvl.fyi>
2020-07-05 r/1215 feat(3p/nix): Add gRPC definitions for worker protocolVincent Ambo1-0/+88
Adds initial gRPC definitions for the Nix worker protocol, which is currently defined messily across the following files: src/libstore/worker-protocol.hh src/libstore/remote-store.cc src/nix-daemon/nix-daemon.cc The protocol definition is basically a big enum with the signatures of the calls being implicit in the various client/server implementation functions. The definitions in this file are slowly reversed from these implicit signatures, and are likely to contain an error or two which will be weeded out when this is taken into use. Only a handful of the calls are included in this commit, it is intended to get us up and running first. Change-Id: Ibc9b2ab4b91a064c8935f09f7ac72bb8150fb476 Reviewed-on: https://cl.tvl.fyi/c/depot/+/926 Reviewed-by: isomer <isomer@tvl.fyi> Tested-by: BuildkiteCI
2020-07-05 r/1212 fix(3p/nix): Link to glog built by NixVincent Ambo3-13/+3
Same as cl/921, it seems that the trick to making this work is indeed overriding the C++ standard used in the dependency. Change-Id: I3c5984d71014d774c161ecc283844f504fd44719 Reviewed-on: https://cl.tvl.fyi/c/depot/+/922 Tested-by: BuildkiteCI Reviewed-by: lukegb <lukegb@tvl.fyi>
2020-07-05 r/1211 fix(3p/nix): Link to Abseil built by NixVincent Ambo3-20/+2
This didn't work previously ... but now it does. I think setting the standard explicitly is what did the trick, but it's slightly unclear to me why. Either way this means that Abseil is no longer constantly getting recompiled when building Nix, which is nice. Change-Id: I377f7b68bf1ef9045df6a2eee8fdd0c92f243547 Reviewed-on: https://cl.tvl.fyi/c/depot/+/921 Tested-by: BuildkiteCI Reviewed-by: lukegb <lukegb@tvl.fyi>
2020-07-04 r/1206 chore(3p/nix/libexpr): Remove dead code from attribute setsVincent Ambo3-17/+2
These bits are no longer required with the hashmap-backed implementation of attribute sets. Change-Id: I8b936d8d438a00bad4ccf8e0b4dd719c559ce8c2 Reviewed-on: https://cl.tvl.fyi/c/depot/+/912 Tested-by: BuildkiteCI Reviewed-by: edef <edef@edef.eu>
2020-06-23 r/1069 fix(3p/nix): Revert "feat(3p/nix): Add installCheckPhase"glittershark1-13/+0
This reverts commit 368e8d1eddb8cd95ded7b2f78e4805c67d28ff91. Reason for revert: Didn't mean to submit, and the phase is currently failing (which breaks the otherwise-functional derivation) Change-Id: I515b2fb45188dc90f09ae2458453192487c74d71 Reviewed-on: https://cl.tvl.fyi/c/depot/+/581 Reviewed-by: tazjin <mail@tazj.in>
2020-06-23 r/1067 feat(3p/nix): Add installCheckPhaseGriffin Smith1-0/+13
Add an installCheckPhase that runs the appropriate substituteAll on common.sh and runs the lang.sh tests with the build artifacts in the PATH. Change-Id: I2df5a93b8f3ffdfdc194a0e7d6b6669ef520c345 Reviewed-on: https://cl.tvl.fyi/c/depot/+/561 Reviewed-by: glittershark <grfn@gws.fyi>
2020-06-23 r/1066 fix(3p/nix): Make traces log, not dlogGriffin Smith1-2/+2
We don't want traces compiled out since they're an actual language feature that're used in userspace - also their absence is breaking the tests Change-Id: Icaefca8f52e94001785f724fdc0c10a7586b24e7 Reviewed-on: https://cl.tvl.fyi/c/depot/+/562 Reviewed-by: lukegb <lukegb@tvl.fyi> Reviewed-by: Kane York <rikingcoding@gmail.com> Reviewed-by: lukegbot <bot@lukegb.com>
2020-06-22 r/1060 fix(3p/nix): fix readTree by fixing readDir by deleting some codeLuke Granger-Brown1-7/+0
Change-Id: I4f44e6050fc5121072f4cde7758defe2dcbd4e92 Reviewed-on: https://cl.tvl.fyi/c/depot/+/552 Reviewed-by: tazjin <mail@tazj.in>
2020-06-21 r/1055 fix(3p/nix): propagate dependencies which are needed by people linking in nixLuke Granger-Brown2-2/+13
This includes absl, which we install into the output, and boost and the boehm GC, which are moved to propagated deps. Change-Id: I8f9f9795ff92e26b2320359064241d7fd59c2d33 Reviewed-on: https://cl.tvl.fyi/c/depot/+/549 Reviewed-by: tazjin <mail@tazj.in>
2020-06-21 r/1054 fix(3p/nix): install nix_config.h and config.nixLuke Granger-Brown3-12/+21
This also installs the rest of corepkgs as a side-effect. Change-Id: I67a42d45793d5e8fdad51c1f306eebf63e9c2868 Reviewed-on: https://cl.tvl.fyi/c/depot/+/548 Reviewed-by: tazjin <mail@tazj.in>
2020-06-21 r/1053 fix(3p/nix): allow blank lines in nix.confLuke Granger-Brown1-1/+1
Change-Id: I5ab040a62e123c57fe712b252fbf84fe5a8bc026 Reviewed-on: https://cl.tvl.fyi/c/depot/+/547 Reviewed-by: tazjin <mail@tazj.in>
2020-06-21 r/1052 feat(3p/nix): install pkgconfig files for libexpr, libmain and libstoreLuke Granger-Brown7-12/+22
Also fixes the pkgconfig files to use the corresponding CMake variables. Change-Id: I8095b8aff39ad91e592f3edc95555c9f1f1f153d Reviewed-on: https://cl.tvl.fyi/c/depot/+/545 Reviewed-by: tazjin <mail@tazj.in>
2020-06-21 r/1051 chore(3p/nix): use GNUInstallDirs to determine output directory namesLuke Granger-Brown5-4/+7
This ensures that we install both glog's .a and all the .so files we generate into a single consistent output lib path (which is, err, lib64, but whatever). Change-Id: Ib6ac6eacf5f56e4b719cfb586db731efc122c31b Reviewed-on: https://cl.tvl.fyi/c/depot/+/544 Reviewed-by: tazjin <mail@tazj.in>
2020-06-21 r/1050 chore(3p/nix): export library headers to include/ in output.Luke Granger-Brown4-8/+28
Change-Id: I87eb6e59782d720015d351d8829dc7b8688e01f2 Reviewed-on: https://cl.tvl.fyi/c/depot/+/543 Reviewed-by: tazjin <mail@tazj.in>
2020-05-31 r/876 fix(3p/nix): passAsFile: leave out the hash prefixedef2-1/+2
Having a colon in the path may cause issues, and having the hash function indicated isn't actually necessary. We now verify the path format in the tests to prevent regressions. (cherry picked from commit c65a6fa86aef7bdf51fb4fba7bd31d265619ba3f)
2020-05-31 r/875 fix(3p/nix): passAsFile: hash the attribute name instead of numbering ↵Puck Meerburg1-2/+2
sequentially This makes the paths consistent without relying on ordering. Co-authored-by: edef <edef@edef.eu> (cherry picked from commit 515c0a263e137a00e82f7d981284dbe54db23247)
2020-05-30 r/873 chore(3p/nix): Clean up leftover Meson fileVincent Ambo1-78/+0
2020-05-30 r/872 chore(3p/nix): Clean up some unused definesVincent Ambo5-1529/+2
2020-05-29 r/871 feat(3p/nix): Configure CMake to generate compile commandsVincent Ambo1-0/+4
2020-05-29 r/870 fix(3p/nix): Build glog as included CMake projectVincent Ambo3-5/+9
2020-05-28 r/868 refactor(3p/nix): Introduce CMake as the build system for NixVincent Ambo10-22/+500
Completes the switch from Meson to CMake for the core build system in Nix. Meson was added originally because someone else had already done the work for integrating it in Nix and it was an upgrade from the previous setup. However over time it became clear that Meson is not quite mature enough for projects like Nix that have occasionally peculiar configuration constraints. Some issues encountered with Meson (some of these are due to the Meson setup in Nix): * Difficulty with generating correct compile_commands.json for external tools like clangd * Difficulty linking to libc++ when using clang * Ugly shell invocations for certain parts of the build system (I want these to be gone!!!) This CMake setup mimics the Meson configuration, but there are some differences (some temporary): * headers are now included separately for each library (see a previous commit that changes includes appropriately) * autoheaders-style configuration is currently hardcoded. Before blindly copying this I want to evaluate how much of it actually exists for portability concerns that I don't have (such as support for OS X). * Nix is built with libc++ by default. * [libstore] SQL schema is now inlined via a generated header, not an included string literal Abseil is still built as part of this build, rather than an external dependency, because it chokes on differently configured compiler invocations. Note that because of the move to libc++ an unwanted behaviour is introduced: glog log messages no longer have a body. I have yet to debug what is going on there.
2020-05-27 r/867 chore(3p/nix): Remove meson build files for core packagesVincent Ambo7-1188/+0
2020-05-27 r/866 chore(3p/nix): Move Abseil symlink one layer upVincent Ambo2-1/+1
This is required for upcoming build system changes.
2020-05-27 r/865 refactor(3p/nix): Anchor local includes at src/Vincent Ambo159-656/+661
Previously all includes were anchored in one global mess of header files. This moves the includes into filesystem "namespaces" (if you will) for each sub-package of Nix. Note: This commit does not introduce the relevant build system changes.
2020-05-27 r/861 fix(3p/nix): Default-import depot from a relative pathVincent Ambo1-1/+1
2020-05-25 r/847 docs(3p/nix): Add a README explaining the goals of the forkVincent Ambo1-12/+147
2020-05-25 r/846 refactor(3p/nix): Replace tokenizeStrings with absl::StrSplitVincent Ambo29-145/+146
This function was a custom (and inefficient in the case of single-character delimiters) string splitter which was used all over the codebase. Abseil provides an appropriate replacement function.
2020-05-25 r/845 refactor(3p/nix/libutil): Replace hasPrefix/Suffix with AbseilVincent Ambo21-57/+69
Uses the equivalent absl::StartsWith and absl::EndsWith functions instead.
2020-05-25 r/844 fix(3p/nix/libstore): Fix error condition when parsing generationsVincent Ambo1-1/+1
2020-05-25 r/843 refactor(3p/nix/libutil): Replace string2Int & trim functionsVincent Ambo19-72/+84
Replaces these functions with corresponding functions from Abseil, namely absl::StripAsciiWhitespace and absl::SimpleAtoi. In the course of doing this some minor things I encountered along the way were also refactored. This also changes the signatures of the various custom readFile functions to use absl::string_view types.
2020-05-24 r/842 chore(3p/nix/libstore): Remove progress bar remnants from downloadVincent Ambo1-19/+0
2020-05-24 r/841 style(3p/nix): Remove 'using std::*' from xml-writer.hhVincent Ambo2-7/+3
See previous commit for more details on why.
2020-05-24 r/840 style(3p/nix): Remove 'using std::*' from types.hhVincent Ambo85-824/+862
It is considered bad form to use things from includes in headers, as these directives propagate to everywhere else and can make it confusing. types.hh (which is includes almost literally everywhere) had some of these directives, which this commit removes.
2020-05-24 r/839 chore(3p/nix): Enable cross-file-rename in clangdVincent Ambo1-1/+1
2020-05-24 r/838 chore(3p/nix): Make build type configurableVincent Ambo1-3/+3
2020-05-24 r/835 refactor(3p/nix/libutil): Replace chomp() with absl::stringsVincent Ambo15-26/+40
2020-05-24 r/834 chore(3p/nix): Remove some OS X specific definesVincent Ambo9-281/+3
This project will be dropping OS X support until the core is simplified.
2020-05-24 r/833 fix(3p/nix): Fix long paths permanently breaking GCAlyssa Ross1-13/+45
Suppose I have a path /nix/store/[hash]-[name]/a/a/a/a/a/[...]/a, long enough that everything after "/nix/store/" is longer than 4096 (MAX_PATH) bytes. Nix will happily allow such a path to be inserted into the store, because it doesn't look at all the nested structure. It just cares about the /nix/store/[hash]-[name] part. But, when the path is deleted, we encounter a problem. Nix will move the path to /nix/store/trash, but then when it's trying to recursively delete the trash directory, it will at some point try to unlink /nix/store/trash/[hash]-[name]/a/a/a/a/a/[...]/a. This will fail, because the path is too long. After this has failed, any store deletion operation will never work again, because Nix needs to delete the trash directory before recreating it to move new things to it. (I assume this is because otherwise a path being deleted could already exist in the trash, and then moving it would fail.) This means that if I can trick somebody into just fetching a tarball containing a path of the right length, they won't be able to delete store paths or garbage collect ever again, until the offending path is manually removed from /nix/store/trash. (And even fixing this manually is quite difficult if you don't understand the issue, because the absolute path that Nix says it failed to remove is also too long for rm(1).) This patch fixes the issue by making Nix's recursive delete operation use unlinkat(2). This function takes a relative path and a directory file descriptor. We ensure that the relative path is always just the name of the directory entry, and therefore its length will never exceed 255 bytes. This means that it will never even come close to AX_PATH, and Nix will therefore be able to handle removing arbitrarily deep directory hierachies. Since the directory file descriptor is used for recursion after being used in readDirectory, I made a variant of readDirectory that takes an already open directory stream, to avoid the directory being opened multiple times. As we have seen from this issue, the less we have to interact with paths, the better, and so it's good to reuse file descriptors where possible. I left _deletePath as succeeding even if the parent directory doesn't exist, even though that feels wrong to me, because without that early return, the linux-sandbox test failed. Reported-by: Alyssa Ross <hi@alyssa.is> Thanks-to: Puck Meerburg <puck@puckipedia.com> Tested-by: Puck Meerburg <puck@puckipedia.com> Reviewed-by: Puck Meerburg <puck@puckipedia.com> (cherry picked from commit c05e20daa1abb3446e378331697938b78af2b3d7)
2020-05-23 r/832 style(3p/nix): Rename derivation to 'tazjix'Vincent Ambo1-1/+1
This makes it easier to distinguish which thing I'm dealing with in the store paths. It does not affect anything else.
2020-05-23 r/831 fix(3p/nix): Set Meson build type to 'release'Vincent Ambo1-0/+2
Gotta go fast ... (well, not while compiling)
2020-05-23 r/829 fix(3p/nix/libexpr): Ensure ExprOpUpdate merges into destinationVincent Ambo1-17/+5
... this fixes nixpkgs eval!
2020-05-23 r/828 refactor(3p/nix/libexpr): Make other 'const' in Bindings::mergeVincent Ambo2-8/+5
2020-05-23 r/827 fix(3p/nix/libexpr): Actually use AttributeMap type aliasVincent Ambo1-2/+2
Without this alias, the garbage-collecting allocator won't be used and allocated attribute set values won't be visible during GC.
2020-05-23 r/826 docs(3p/nix/libexpr): Add comment on ExprSelectVincent Ambo1-1/+8
2020-05-23 r/825 docs(3p/nix/libexpr): Add some comments about function callsVincent Ambo2-5/+10
These were things that took me a moment to realise.
2020-05-23 r/824 chore(3p/nix/tests): Remove leftover '__overrides' testsVincent Ambo2-5/+0
2020-05-23 r/823 fix(3p/nix/libexpr): Fix attrNames/attrValues builtins for btree_mapVincent Ambo1-21/+9
Replaces the previous implementations which performed sorting with one that instead walks through the map (which is already sorted) and yields values from it. This fixes a handful of language tests because the previous implementation did not actually yield useful values on the new implementation.
2020-05-23 r/822 fix(3p/nix/libexpr): Ensure symbols are compared by valueVincent Ambo1-1/+1