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2020-09-14 r/1791 refactor(tvix): Make static strings constexpr string_viewsGriffin Smith2-10/+8
Make all static std::strings constexpr std::string_views, and replace concatenation with absl::StrCat where necessary. Technically all of these are constant, so they really don't need to be top-level statics - and since I'm trying to get rid of as much global state as possible in preparation for making the nix daemon properly multithreaded I figured I'd knock these out while I was at it. Change-Id: Ibd3ad9ef68f0a0eacb135541b39fdb13dae042e1 Reviewed-on: https://cl.tvl.fyi/c/depot/+/1939 Tested-by: BuildkiteCI Reviewed-by: tazjin <mail@tazj.in>
2020-09-01 r/1756 refactor(tvix): getEnv(): Return std::optionalEelco Dolstra2-28/+19
This allows distinguishing between an empty value and no value. Patch ported from upstream at https://github.com/NixOS/nix/commit/ba87b08f8529e4d9f8c58d8c625152058ceadb75 Change-Id: I061cc8e16b1a7a0341adfc3b0edca1c0c51d5c97 Reviewed-on: https://cl.tvl.fyi/c/depot/+/1884 Tested-by: BuildkiteCI Reviewed-by: kanepyork <rikingcoding@gmail.com>
2020-08-23 r/1704 refactor(tvix/libutil): Mark single-argument constructors explicitVincent Ambo18-64/+80
This is the clang-tidy lint 'google-explicit-constructor'. There's a whole bunch of breakage that was introduced by this, and we had to opt out a few types of this (esp. the string formatting crap). In some cases minor other changes have been done to keep the code working, instead of converting between types (e.g. an explicit comparison operator implementation for nix::Pid). Change-Id: I12e1ca51a6bc2c882dba81a2526b9729d26988e7 Reviewed-on: https://cl.tvl.fyi/c/depot/+/1832 Tested-by: BuildkiteCI Reviewed-by: kanepyork <rikingcoding@gmail.com> Reviewed-by: glittershark <grfn@gws.fyi>
2020-08-21 r/1703 style(tvix): Add missing braces in expressionsVincent Ambo7-12/+30
The previous clang-tidy invocation missed some header files, which has now been rectified. Change-Id: I31547754fbf52f439dc7aeefb08ab90bd50c4156 Reviewed-on: https://cl.tvl.fyi/c/depot/+/1831 Reviewed-by: glittershark <grfn@gws.fyi> Tested-by: BuildkiteCI
2020-08-21 r/1702 style(tvix): Replace remaining typedefs with using statementsVincent Ambo7-23/+26
Change (mostly) created via: fd . -e hh -e cc | parallel clang-tidy -p ~/builds/nix --fix "'--checks=-*,modernize-use-using'" Change-Id: I90ad6e64a5399f2005dfb9956074ec51c2c78cea Reviewed-on: https://cl.tvl.fyi/c/depot/+/1830 Tested-by: BuildkiteCI Reviewed-by: glittershark <grfn@gws.fyi>
2020-08-14 r/1649 refactor(tvix): Make Store::buildPaths return a StatusGriffin Smith3-2/+80
Make Store::buildPaths return a Status with [[nodiscard]] rather than throwing exceptions to signal failure. This is the beginning of a long road to refactor the entire store API to be status/statusor based instead of using exceptions. Change-Id: I2e32371c95a25b87ad129987c217d49c6d6e0c85 Reviewed-on: https://cl.tvl.fyi/c/depot/+/1745 Tested-by: BuildkiteCI Reviewed-by: kanepyork <rikingcoding@gmail.com>
2020-08-10 r/1632 style(tvix): Sort out minor formatting errorsVincent Ambo4-11/+11
Invocations of the MakeError macro that were not followed by a semicolon messed up indentation in the next lines. Change-Id: I03d7d1443f062a38af2c7da3da8928e0ed05e274 Reviewed-on: https://cl.tvl.fyi/c/depot/+/1708 Tested-by: BuildkiteCI Reviewed-by: kanepyork <rikingcoding@gmail.com>
2020-08-09 r/1627 test(tvix): Cover scanForReferences in a testGriffin Smith2-0/+10
Aded a few test cases covering the scanForReferences function, which had been accidentally broken in 976a36c (which is now partially-reverted). As part of this, since the test needed to generate hashes for store paths, the logic in MakeStorePath to compress a sha256 hash down to 20 bytes and convert it to base32 has been extracted to a member function on the Hash class. Fixes: #34 Change-Id: Ie2d914688a80f42d0234d351a7cc0714fd15709e Reviewed-on: https://cl.tvl.fyi/c/depot/+/1698 Tested-by: BuildkiteCI Reviewed-by: kanepyork <rikingcoding@gmail.com>
2020-08-09 r/1621 refactor(tvix): Factor-out proto utilitiesGriffin Smith2-0/+115
Factor out the shared utilities for interacting with protobufs/grpc from libstore to a proto.hh header in libproto. Change-Id: I1cb8d94867d5d4b63a9994be0b53f8f612eb8e3a Reviewed-on: https://cl.tvl.fyi/c/depot/+/1691 Tested-by: BuildkiteCI Reviewed-by: kanepyork <rikingcoding@gmail.com>
2020-08-08 r/1619 chore(3p/nix): apply google-readability-castingKane York7-28/+30
Command run: jq <compile_commands.json -r 'map(.file)|.[]' | grep -v '/generated/' | parallel clang-tidy -p compile_commands.json -checks=-*,google-readability-casting --fix Manual fixes applied in src/nix-env/nix-env.cc, src/libstore/store-api.cc Change-Id: I406b4be9368c557ca59329bf6f7002704e955f8d Reviewed-on: https://cl.tvl.fyi/c/depot/+/1557 Tested-by: BuildkiteCI Reviewed-by: glittershark <grfn@gws.fyi> Reviewed-by: tazjin <mail@tazj.in>
2020-08-06 r/1613 fix(3p/nix): Use SkipEmpty in all calls to absl::StrSplitKane York2-3/+3
The behavior to return a list containing a single empty string when provided an empty string is a behavior that absl inherited from legacy code. However, the behavior expected by legacy code in Nix is the behavior provided by the SkipEmpty option. Switch all calls to use SkipEmpty, except for the call already using SkipWhitespace. See also commit 26a59482d2427f640893517f1b24dd650a5bd5da, with the partly-prophetic message: "there may be other places we need to fix this as well." Change-Id: I6e94856a12cfb1b7e4a3b4e221769ed446648861 Reviewed-on: https://cl.tvl.fyi/c/depot/+/1687 Tested-by: BuildkiteCI Reviewed-by: glittershark <grfn@gws.fyi>
2020-08-05 r/1594 feat(3p/nix): Implement AddToStore rpc clientGriffin Smith2-0/+17
Implement the AddToStore RPC client method, which uses an AddToStorePathWriterSink (the dual of the AddToStorePathReaderSource on the server side) to hook into the dumpPath machinery (which we should refactor not to use sinks or sources, but not yet) and write dumped paths as binary data over gRPC. With this commit and sandboxing disabled, the following derivation builds cleanly: derivation { name = "test"; builder = ./build.sh; system = "x86_64-linux"; } where build.sh has chmod +x and contains: #!/bin/sh echo 1 > $out Change-Id: I94cab86f0825a3a9993262a9807130645c13bf44 Reviewed-on: https://cl.tvl.fyi/c/depot/+/1638 Reviewed-by: kanepyork <rikingcoding@gmail.com> Tested-by: BuildkiteCI
2020-08-04 r/1581 fix(tvix): Partially revert "eliminate exposed global variable"Griffin Smith2-3/+3
This reverts part of commit 976a36c2e482f416acd79a624e6d96cce2564b5b, which was causing scanForReferences to hang indefinitely. I'm not sure what the original intent of the commit was since there's not really much of a commit message on it, but with this I am able to fully realise derivations. Change-Id: I620e892e2fe2244f066512286b086b3dd8f8f6c0 Reviewed-on: https://cl.tvl.fyi/c/depot/+/1635 Tested-by: BuildkiteCI Reviewed-by: tazjin <mail@tazj.in> Reviewed-by: kanepyork <rikingcoding@gmail.com>
2020-08-01 r/1534 fix(3p/nix): revert "apply all clang-tidy fixes"Kane York8-61/+59
This reverts commit ef54f5da9fa30b5c302f2a49595ee5d041f9706a. Resolved conflicts: third_party/nix/src/libexpr/eval.cc third_party/nix/src/libstore/builtins/fetchurl.cc third_party/nix/src/libstore/references.cc third_party/nix/src/libutil/hash.cc third_party/nix/src/nix-daemon/nix-daemon.cc Change-Id: Ib9cf6e96a79a23bde3983579ced3f92e530cb011 Reviewed-on: https://cl.tvl.fyi/c/depot/+/1547 Reviewed-by: glittershark <grfn@gws.fyi> Tested-by: BuildkiteCI
2020-08-01 r/1519 feat(3p/nix): Implement AddToStore proto handlerGriffin Smith3-0/+23
Implement the proto handler for AddToStore, which adds a nix path to the store. This is implemented by adding a new (probably soon-to-be-generalized) Source concretion that wraps a grpc ServerReader for the stream of data we're receiving from the client - this is less than ideal, as it's perpetuating the source/sink thing that's going on and storing entire nars in memory, but is at the very worst an incremental step towards a functioning nix that we can refactor in the future. Paired-With: Perry Lorier <isomer@tvl.fyi> Paired-With: Vincent Ambo <mail@tazj.in> Change-Id: I48db734e7460a47aee4a85dd5137b690980859e3 Reviewed-on: https://cl.tvl.fyi/c/depot/+/1441 Tested-by: BuildkiteCI Reviewed-by: kanepyork <rikingcoding@gmail.com> Reviewed-by: tazjin <mail@tazj.in>
2020-08-01 r/1516 fix(3p/nix/hash): param of Unknown allows any hash typeKane York1-1/+6
Fixes a crash in the self-hosting instantiate test: NIX_REMOTE="$(mktemp -d)" nix-instantiate -E 'let depot = import ./default.nix {}; in depot.third_party.nix.outPath' Change-Id: If99494aa07ec248d3894d4709ab0fde7fa81aff3 Reviewed-on: https://cl.tvl.fyi/c/depot/+/1508 Reviewed-by: tazjin <mail@tazj.in> Tested-by: BuildkiteCI
2020-08-01 r/1515 chore(3p/nix/hash): prefer StatusOr over throwing constructorKane York2-9/+16
The use of `unwrap_throw` can be used as a later grep target. Change-Id: I8c54ed90c4289f07aecb8a1393dd10204c8bce4e Reviewed-on: https://cl.tvl.fyi/c/depot/+/1493 Reviewed-by: glittershark <grfn@gws.fyi> Reviewed-by: tazjin <mail@tazj.in> Tested-by: BuildkiteCI
2020-08-01 r/1514 fix(3p/nix/hash): initialize HashSink.ctxKane York1-1/+4
Fixup for CL 1492 (addcba11b05500ba28ade309de6bd53f8153a6c4) Additionally, add a test to verify functionality of HashSink. Change-Id: I2a74b925a1b93ed4d3add29021d759c93e813424 Reviewed-on: https://cl.tvl.fyi/c/depot/+/1507 Tested-by: BuildkiteCI Reviewed-by: glittershark <grfn@gws.fyi>
2020-07-29 r/1506 fix(3p/nix/hash): smart pointers in HashSinkKane York2-17/+18
Change-Id: Ib2aaf42c8b234ee343c4653eb03f328c113dea86 Reviewed-on: https://cl.tvl.fyi/c/depot/+/1492 Tested-by: BuildkiteCI Reviewed-by: glittershark <grfn@gws.fyi>
2020-07-28 r/1504 fix(3p/nix/hash): provide a Status-returning constructorKane York4-51/+82
Additionally, add IsValidBase16() to restore the behavior of rejecting invalid base16, which absl's HexStringToBytes does not do. Change-Id: I777a36f5dc787aa54a2aa316d6728f68da129768 Reviewed-on: https://cl.tvl.fyi/c/depot/+/1484 Tested-by: BuildkiteCI Reviewed-by: tazjin <mail@tazj.in>
2020-07-28 r/1503 chore(3p/nix/hash): eliminate exposed global variableKane York2-2/+43
Change-Id: I3b34e3e17a751e225831ae599c6c6bb782a25679 Reviewed-on: https://cl.tvl.fyi/c/depot/+/1486 Tested-by: BuildkiteCI Reviewed-by: tazjin <mail@tazj.in>
2020-07-27 r/1495 fix(3p/nix): apply all clang-tidy fixesKane York8-62/+64
Change-Id: I265e763393422ee1881653527c91024458060825 Reviewed-on: https://cl.tvl.fyi/c/depot/+/1432 Tested-by: BuildkiteCI Reviewed-by: tazjin <mail@tazj.in>
2020-07-25 r/1472 feat(3p/nix): Add main function for grpc daemonGriffin Smith1-0/+3
Implement the main function for the new, proto-based nix daemon. This mostly replicates the behavior of the previous nix daemon - it starts a grpc server listening on the same nix socket path and supports the same set of options - with the exception of --stdio, which has been renamed to --pipe and documented in the man page. Change-Id: Ib729283c1d5d35c0e1b0a968bc1f052f5527f2d7 Reviewed-on: https://cl.tvl.fyi/c/depot/+/1356 Tested-by: BuildkiteCI Reviewed-by: tazjin <mail@tazj.in> Reviewed-by: kanepyork <rikingcoding@gmail.com>
2020-07-25 r/1462 refactor(3p/nix): Remove custom base64 implementationGriffin Smith3-73/+9
Replace the custom, rather questionable base64 implementation with absl::Base64{Une,E}scape. To make sure that the custom implementation was doing the same thing I've also added a test covering nix::Hash::to_string, which was one function that used it - the test passed prior to the replacement, and continued to pass afterwards. The previous base64Decode function threw an exception on failure - to avoid going too far down the rabbit hole I've replicated that functionality at all call sites, but this should be replaced with more sensible error handling such as StatusOr eventually. Also, before this change: ❯ nix eval -f . users.tazjin.emacs.outPath "/nix/store/g6ri2q8nra96ix20bcsc734r1yyaylb1-tazjins-emacs" And after: ❯ ./result/bin/nix eval -f . users.tazjin.emacs.outPath "/nix/store/g6ri2q8nra96ix20bcsc734r1yyaylb1-tazjins-emacs" Change-Id: Id292ffbb82fe808f3f1b34670afbe7b8c13ad615 Reviewed-on: https://cl.tvl.fyi/c/depot/+/1385 Reviewed-by: tazjin <mail@tazj.in> Tested-by: BuildkiteCI
2020-07-24 r/1457 fix(3p/nix): do not call vforkKane York2-17/+12
The use of vfork() in Nix is entirely illegal. Quote: If the process created by vfork() returns from the function in which vfork() was called, or calls any other function before successfully calling _exit() or one of the exec*() family of functions, the behavior is undefined. -- Linux man-pages, release 5.05 Add a TODO to use the higher-performance variants of clone() on Linux when it is available. Change-Id: I42370e1568ad6e2d00d70d0b66c8aded8f1288bb Reviewed-on: https://cl.tvl.fyi/c/depot/+/1418 Tested-by: BuildkiteCI Reviewed-by: tazjin <mail@tazj.in> Reviewed-by: Alyssa Ross <hi@alyssa.is>
2020-07-24 r/1447 fix(3p/nix): Link nixutil to its dependenciesGriffin Smith1-0/+6
nixutil depends on bzip2, lzma, boost::context, brotli{enc,dec}, and openssl, but wasn't directly linking to them. This was causing linker errors in a test that only depended on nixutil. Change-Id: I60e77ea7b18b08e2946fcf9176ae0f355cd71844 Reviewed-on: https://cl.tvl.fyi/c/depot/+/1384 Tested-by: BuildkiteCI Reviewed-by: kanepyork <rikingcoding@gmail.com>
2020-07-19 r/1403 fix(3p/nix): Fix all remaining compiler warningsVincent Ambo1-0/+7
This compiles under `-Wall -Werror`. The largest chunk of this change is `final` qualifiers for the various Nix CLI command structs, which inherit from a Command class that has more virtual functions than are implemented by each command. Change-Id: I0925e6e1a39013f026773db5816e4a77d50f3b4a Reviewed-on: https://cl.tvl.fyi/c/depot/+/1294 Tested-by: BuildkiteCI Reviewed-by: isomer <isomer@tvl.fyi> Reviewed-by: kanepyork <rikingcoding@gmail.com>
2020-07-19 r/1401 refactor(3p/nix): Remove remaining prefork-compat typeVincent Ambo2-22/+0
Removes the verbosity enum, which is no longer actively used anywhere other than a daemon protocol implementation bit that doesn't actually work. Since the verbosity was marked deprecated, this removes one of the last remaining warnings. Change-Id: Iaee9d1d6c14b30daac83bb44bcacff32a0e07fb0 Reviewed-on: https://cl.tvl.fyi/c/depot/+/1289 Tested-by: BuildkiteCI Reviewed-by: glittershark <grfn@gws.fyi>
2020-07-13 r/1278 refactor(3p/nix/libexpr): Make nix::AttrName a std::variantVincent Ambo1-2/+2
nix:AttrName was one of the few classes that relied on the default constructor of nix::Symbol (which I am trying to remove in a separate change). The class essentially represents the name of an attribute in a set, which is either just a string expression or a dynamically evaluated expression (e.g. string interpolation). Previously it would be constructed by only setting one of the fields and defaulting the other, now it is an explicit std::variant. Note that there are several code paths where not all eventualities are handled and this code is bug-for-bug compatible with those, except that unknown conditions (which should never work) are now throwing instead of silently doing ... something. The language tests pass with this change, and the depot derivations that I tested with evaluated successfully. Change-Id: Icf1ee60a5f8308f4ab18a82749e00cf37a938a8f Reviewed-on: https://cl.tvl.fyi/c/depot/+/1138 Reviewed-by: edef <edef@edef.eu> Reviewed-by: glittershark <grfn@gws.fyi> Tested-by: BuildkiteCI
2020-07-13 r/1277 feat(3p/nix/libutil): Add util::overloaded class for std::visitorVincent Ambo2-0/+20
Implements the fairly common lambda overload class used for std::visit over variants and other things that require groups of callables. Change-Id: Ia7448b7e1bd349b4909974758e6e6303a80d86d7 Reviewed-on: https://cl.tvl.fyi/c/depot/+/1137 Tested-by: BuildkiteCI Reviewed-by: glittershark <grfn@gws.fyi> Reviewed-by: edef <edef@edef.eu>
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/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/1051 chore(3p/nix): use GNUInstallDirs to determine output directory namesLuke Granger-Brown1-1/+1
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-Brown1-2/+7
Change-Id: I87eb6e59782d720015d351d8829dc7b8688e01f2 Reviewed-on: https://cl.tvl.fyi/c/depot/+/543 Reviewed-by: tazjin <mail@tazj.in>
2020-05-30 r/872 chore(3p/nix): Clean up some unused definesVincent Ambo1-5/+0
2020-05-28 r/868 refactor(3p/nix): Introduce CMake as the build system for NixVincent Ambo1-0/+53
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 Ambo1-68/+0
2020-05-27 r/865 refactor(3p/nix): Anchor local includes at src/Vincent Ambo21-52/+55
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.
2020-05-25 r/846 refactor(3p/nix): Replace tokenizeStrings with absl::StrSplitVincent Ambo3-36/+14
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 Ambo2-15/+0
Uses the equivalent absl::StartsWith and absl::EndsWith functions instead.
2020-05-25 r/843 refactor(3p/nix/libutil): Replace string2Int & trim functionsVincent Ambo5-32/+15
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/841 style(3p/nix): Remove 'using std::*' from xml-writer.hhVincent Ambo1-5/+1
See previous commit for more details on why.
2020-05-24 r/840 style(3p/nix): Remove 'using std::*' from types.hhVincent Ambo14-180/+183
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/835 refactor(3p/nix/libutil): Replace chomp() with absl::stringsVincent Ambo2-8/+0
2020-05-24 r/834 chore(3p/nix): Remove some OS X specific definesVincent Ambo1-25/+1
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)
2020-05-21 r/797 refactor(3p/nix/libexpr): Use std::string as qualified typeVincent Ambo1-1/+1
Replaces most uses of `string` with `std::string`. This came up because I removed the "types.hh" import from "symbol-table.hh", which percolated through a bunch of files where `string` was suddenly no longer defined ... *sigh*
2020-05-21 r/791 chore(3p/nix): Minor fixes to get rid of warningsVincent Ambo2-5/+3
2020-05-20 r/789 refactor(3p/nix): Apply clang-tidy's performance-* fixesVincent Ambo7-16/+17
This applies the performance fixes listed here: https://clang.llvm.org/extra/clang-tidy/checks/list.html
2020-05-20 r/788 refactor(3p/nix): Apply clang-tidy's readability-* fixesVincent Ambo10-107/+122
This applies the readability fixes listed here: https://clang.llvm.org/extra/clang-tidy/checks/list.html