nanofil/survey/default.nix

The nanofil package survey (docs/survey.md). nanofilize is a package adapter: drv built with nanofil as its C compiler, in the Fil-C staging package set (whose libraries, built by filcc, it links with), and nothing else compiling its C: cc.sh hands every C compile to nanofil-cc and refuses what it cannot, so a package builds with nanofil alone or fails. C++ still goes to filcc and is counted (cxx.sh). Its own checkPhase runs where the port's package runs one.

nix build -f nanofil/survey ref.zlib   # the filcc build
nix build -f nanofil/survey nf.zlib    # the same package by nanofil
nix eval --json -f nanofil/survey meta.zlib # versions, sources, deps

The build log ends with "nanofil-survey: N objects, M C++, K fallbacks" on success, and on failure also the first nanofil errors that configure, meson or cmake logged.

λrepo?, opt?

repo	default ../..
nanofil options for every compile, e.g. "-O" (`−−argstropt − O`).
opt	default ""

let

22flake=

builtins.getFlaketoStringrepo

used by filcc pkgs pkgsFilc

23system=

"x86_64-linux"

used by filcc pkgsFilc

24pkgs=

importflake.inputs.nixpkgs inherit system;

uses flake used by cc lib names

25filcc=

flake.packages.${system}.filcc-staging

uses flake system used by cc

26pkgsFilc=

flake.legacyPackages.${system}.pkgsFilcStaging

uses flake system used by nf p present ref

27lib=

pkgs.lib

uses pkgs used by depNames meta names nanofil-cc nanofilize nf present ref

Only bin/ and src/, so that the survey's own results and docs do not change the nanofil builds.

30nanofil-cc=

import../nix/nanofil-cc.nix

31inherit

pkgs filcc

32src=

lib.fileset.toSource

33root=

../.

34fileset=

lib.fileset.unions../bin ../src

uses lib used by cc

40cc=

pkgs.runCommand"nanofil-survey-cc" { }

mkdir -p $out/bin

for f in cc cxx; do

substitute ${./.}/$f.sh $out/bin/$f --subst-var-by bash ${pkgs.bash}/bin/bash \

--subst-var-by nanofilcc ${nanofil-cc} --subst-var-by filcc ${filcc}

chmod +x $out/bin/$f

done

for n in clang gcc; do ln -s cc $out/bin/$n; done

for n in c++ clang++ g++; do ln -s cxx $out/bin/$n; done

uses filcc nanofil-cc pkgs used by nanofilize

50report=

nanofilSurveyReport() {

local log=$NIX_BUILD_TOP/nanofil.log

echo "nanofil-survey: $(grep -cv '^$cxx\|fallback$ ' $log) objects," \

"$(grep -c '^cxx ' $log) C++, $(grep -c '^fallback ' $log) fallbacks"

}

used by nanofilize

57nanofilize=

λdrv

drv.overrideAttrs

λold

60postHook=

old.postHook or ""

export NANOFIL_LOG=$NIX_BUILD_TOP/nanofil.log

: >$NANOFIL_LOG${lib.optionalStringopt ≢ "" "\nexport NANOFIL_OPT=${lib.escapeShellArgopt}"}

export PATH=${cc}/bin:$PATH CC=${cc}/bin/cc CXX=${cc}/bin/c++

${report}

70exitHook=

old.exitHook or "" + "\nnanofilSurveyReport\n"

71failureHook=

old.failureHook or ""

nanofilSurveyReport

find $NIX_BUILD_TOP \( -name config.log -o -name meson-log.txt \

-o -name CMakeError.log -o -name CMakeConfigureLog.yaml \) 2>/dev/null |

while read -r f; do grep -m 3 '^nanofil: ' "$f" | sed "s|^|nanofil-survey-config: |"; done

uses cc lib report used by info nf

79names=

lib.filtern: n ≢ "<custom>"

lib.flatten

map

λi

i ? pname

→

if i.pname ≡ null then "<custom>" else i.pname

else

builtins.attrNamesi

import../../ports.nix

91inherit

pkgs

92prev=

pkgs

93final=

pkgs

uses lib pkgs used by present

98present=

lib.filtern: pkgsFilc ? ${n} names

uses lib names pkgsFilc used by meta names nf ref

A package's own build dependencies' names, to set aside what needs LLVM, Rust or Go.

101depNames=

p: mapd: d.pname or builtins.parseDrvNamed.name or "".name lib.filterlib.isDerivation p.nativeBuildInputs or [ ] ++ p.buildInputs or [ ] ++ p.propagatedBuildInputs or [ ]

uses lib used by info

110try=

λx

let

113r=

builtins.tryEvalbuiltins.deepSeqx x

if r.success then r.value else null

used by info

116info=

λn

let

119p=

pkgsFilc.${n}

uses pkgsFilc

122version=

tryp.version or ""

123ref=

tryp.drvPath

124nf=

trynanofilizep.drvPath

125src=

trytoStringp.src or ""

126srcDrv=

tryp.src.drvPath or ""

Its checkPhase or installCheckPhase runs (tpm2-tss runs makecheck as its installCheck).

129doCheck=

tryp.doCheck or false ∨ p.doInstallCheck or false

130deps=

trydepNamesp

uses depNames nanofilize try used by meta

Packages whose builds measure something other than C compilation, or regularly need more than the survey's 90-minute limit. The default survey sets them aside; campaignctlsubmit bench builds them, one at a time on swa, as a compiler-speed benchmark (docs/campaign-service.md).

136slow=

137emacs30=

"mostly Lisp byte-compilation; hits the 90-minute limit"

138libgcrypt=

"its tests time out in the plain survey"

142inherit

nanofilize cc slow

143names=

present

uses present

144meta=

lib.genAttrspresent info