Commit graph

12 commits

Author SHA1 Message Date
Vincent Ambo
d42c3dd72f chore(3p): Bump nixpkgs channels
Bumps both nixos-unstable and nixos-20.03 to today's versions, as per
status.nixos.org

Contains minor fixes to things that broke because of the update:

* tazjin/frog: hardware.u2f is a deprecated setting
* glittershark/system: modSha256 in Go modules is now vendorSha256
* glittershark/owothia: removed version constraint on relude

Change-Id: Ib3e9612b1b06ed547b90e4f8b0ffe5ed7fe0a5c4
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1642
Tested-by: BuildkiteCI
Reviewed-by: glittershark <grfn@gws.fyi>
2020-08-06 00:15:33 +00:00
Vincent Ambo
d470ec0d29 refactor(3p/nix/libexpr): Use Abseil collection types for parser state
Replaces the previous uses of the (ordered!) std::map and std::set
with absl::flat_hash_{map|set}.

After some careful reading it seems that there is actually no
ordering dependency on these types, and the (drop-in) replacements
perform slightly better.

Overall this is not fixing a bottleneck, just a driveby thing.

Change-Id: Ided695dc75676bd58515aa9382df0be0a09c565e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1220
Reviewed-by: glittershark <grfn@gws.fyi>
Reviewed-by: isomer <isomer@tvl.fyi>
Tested-by: BuildkiteCI
2020-07-16 21:03:52 +00:00
Vincent Ambo
fa161e9a38 refactor(3p/nix/libexpr): Remove the nix::Symbol default constructor
Having a default constructor for this causes a variety of annoying
situations across the codebase in which this is initialised to an
unexpected value, leading to constant guarding against those
conditions.

It turns out there's actually no intrinsic reason that this default
constructor needs to exist. The biggest one was addressed in CL/1138
and this commit cleans up the remaining bits.

Change-Id: I4a847f50bc90e72f028598196592a7d8730a4e01
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1139
Reviewed-by: isomer <isomer@tvl.fyi>
Tested-by: BuildkiteCI
2020-07-13 21:06:43 +00:00
Vincent Ambo
f3165f48aa refactor(3p/nix/libexpr): Make nix::AttrName a std::variant
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 20:14:49 +00:00
Vincent Ambo
811c42d255 fix(3p/nix/libexpr): Ensure symbols are compared by value 2020-05-23 06:18:20 +01:00
Vincent Ambo
a162f4e825 refactor(3p/nix/libexpr): Use std::string as qualified type
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 05:43:22 +01:00
Vincent Ambo
b97307056d docs(3p/nix/libexpr): Add clarifying comments to SymbolTable 2020-05-21 05:42:20 +01:00
Vincent Ambo
97e85f94e5 refactor(3p/nix/libexpr): Use absl::node_hash_set in SymbolTable
This replaces the previous use of std::unordered_set with
absl::node_hash_set.

This type was chosen because the current implementation requires
pointer stability.

This does not yet touch the 'Attr' struct.

As a bonus, the implementation of the SymbolTable struct is now
consolidated into a single header/implementation file pair.
2020-05-21 05:09:23 +01:00
Vincent Ambo
1841d93ccb style(3p/nix): Add braces around single-line for-loops
These were not caught by the previous clang-tidy invocation, but were
instead sorted out using amber[0] as such:

    ambr --regex 'for (\(.+\))\s([a-z].*;)' 'for $1 { $2 }'

[0]: https://github.com/dalance/amber
2020-05-19 19:04:08 +01:00
Vincent Ambo
c758de9d22 style(3p/nix): Reformat all includes to match new style 2020-05-19 15:55:11 +01:00
Vincent Ambo
0f2cf531f7 style(3p/nix): Reformat project in Google C++ style
Reformatted with:

    fd . -e hh -e cc | xargs clang-format -i
2020-05-17 16:31:57 +01:00
Vincent Ambo
7994fd1d54 Add 'third_party/nix/' from commit 'be66c7a6b24e3c3c6157fd37b86c7203d14acf10'
git-subtree-dir: third_party/nix
git-subtree-mainline: cf8cd640c1
git-subtree-split: be66c7a6b24e3c3c6157fd37b86c7203d14acf10
2020-05-17 15:52:38 +01:00