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WriteHaskell: Strip binaries #75623

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merged 1 commit into from Dec 14, 2019
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@chkno
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@chkno chkno commented Dec 13, 2019

Motivation for this change

Unstripped Haskell binaries are silly-large. WriteC strips the C binaries it creates. WriteHaskell oughta strip Haskell binaries too (they need it even more).

This reduces the size of Hello World [1] from 3.06 MiB to 678 KiB.

[1] As measured by nix-shell -p 'writers.writeHaskellBin "hello" {} "main = putStrLn \"hello\""' --run 'ls -l $(which hello)'

Things done
  • Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS linux)
  • Built on platform(s)
    • NixOS
    • macOS
    • other Linux distributions
  • Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
  • Tested compilation of all pkgs that depend on this change using nix-shell -p nix-review --run "nix-review wip"
  • Tested execution of all binary files (usually in ./result/bin/)
  • Determined the impact on package closure size (by running nix path-info -S before and after)
  • Ensured that relevant documentation is up to date
  • Fits CONTRIBUTING.md.
Notify maintainers

cc @Lassulus

This reduces the size of Hello World [1] from 3.06 MiB to 678 KiB.

[1] As measured by nix-shell -p 'writers.writeHaskellBin "hello" {} "main = putStrLn \"hello\""' --run 'ls -l `which hello`'
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@Lassulus Lassulus left a comment

cool, actually a very good idea.
tested the xmonad test and the writers tests successfully.
thank you!

@Lassulus Lassulus merged commit 6498f46 into NixOS:master Dec 14, 2019
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Evaluation Performance Report Evaluator Performance Report
Details
grahamcofborg-eval ^.^!
Details
grahamcofborg-eval-check-meta config.nix: checkMeta = true
Details
grahamcofborg-eval-darwin nix-instantiate --arg nixpkgs { outPath=./.; revCount=999999; shortRev="ofborg"; } ./pkgs/top-level/release.nix -A darwin-tested
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grahamcofborg-eval-nixos nix-instantiate --arg nixpkgs { outPath=./.; revCount=999999; shortRev="ofborg"; } ./nixos/release-combined.nix -A tested
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grahamcofborg-eval-nixos-manual nix-instantiate --arg nixpkgs { outPath=./.; revCount=999999; shortRev="ofborg"; } ./nixos/release.nix -A manual
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grahamcofborg-eval-nixos-options nix-instantiate --arg nixpkgs { outPath=./.; revCount=999999; shortRev="ofborg"; } ./nixos/release.nix -A options
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grahamcofborg-eval-nixpkgs-manual nix-instantiate --arg nixpkgs { outPath=./.; revCount=999999; shortRev="ofborg"; } ./pkgs/top-level/release.nix -A manual
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grahamcofborg-eval-nixpkgs-tarball nix-instantiate --arg nixpkgs { outPath=./.; revCount=999999; shortRev="ofborg"; } ./pkgs/top-level/release.nix -A tarball
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grahamcofborg-eval-nixpkgs-unstable-jobset nix-instantiate --arg nixpkgs { outPath=./.; revCount=999999; shortRev="ofborg"; } ./pkgs/top-level/release.nix -A unstable
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grahamcofborg-eval-package-list nix-env -qa --json --file .
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grahamcofborg-eval-package-list-no-aliases nix-env -qa --json --file . --arg config { allowAliases = false; }
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@chkno chkno deleted the chkno:strip-writehaskell-binaries branch Dec 16, 2019
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