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aszlig 19e83bc2ba
Merge autoPatchelfHook improvements (#47222)
This includes the initialy commit was done by @Mic92 plus a few fixes
from my side. So essentially this avoids patching statically linked
executables and also speeds up searching for ELF files altogether.

I've tested this by comparing the outputs of all the derivations which
make use of this hook using the following Nix expression:

  let
    getPackagesForRev = rev: with import (builtins.fetchGit {
      url = ./.;
      inherit rev;
    }) { config.allowUnfree = true; }; [
      cups-kyodialog3 elasticsearch franz gurobi javacard-devkit
      masterpdfeditor maxx oracle-instantclient powershell reaper
      teamviewer unixODBCDrivers.msodbcsql17 virtlyst wavebox zoom-us
    ];

    pkgs = import <nixpkgs> {};
    baseRev = "ef764eb0d8314b81a012dae04642b4766199956d";

  in pkgs.runCommand "diff-contents" {
    chset = pkgs.lib.zipListsWith (old: new: pkgs.runCommand "diff" {
      inherit old new;
      nativeBuildInputs = [ pkgs.nukeReferences ];
    } ''
      mkdir -p "''${NIX_STORE#/}"
      cp --no-preserve=all -r "$old" "''${NIX_STORE#/}"
      cp --no-preserve=all -r "$new" "''${NIX_STORE#/}"
      find "''${old#/}" "''${new#/}" \
        \( -type f -exec nuke-refs {} + \) -o \( -type l -delete \)
      mkdir "$out"
      echo "$old" > "$out/old-path"
      echo "$new" > "$out/new-path"
      diff -Nur "''${old#/}" "''${new#/}" > "$out/diff" || :
    '') (getPackagesForRev baseRev) (getPackagesForRev "");
  } ''
    err=0
    for c in $chset; do
      if [ -s "$c/diff" ]; then
        echo "$(< "$c/old-path") -> $(< "$c/new-path")" \
             "differs, report: $c/diff" >&2
        err=1
      fi
    done
    [ $err -eq 0 ] && touch "$out"
  ''

With these changes there is only one derivation which has altered
contents, which is "franz". However the reason why it has differing
contents is not directly because of the autoPatchelfHook changes, but
because the "env-vars" file from the builder is in
"$out/opt/franz/env-vars" (Cc: @gnidorah) and we now have different
contents for NIX_CFLAGS_COMPILE and other environment variables.

I also tested this against a random static binary and the hook no longer
tries to patch it.

Merges: #47222
2018-09-25 05:21:01 +02:00
.github treewide: remove mailing list references 2018-08-23 09:24:44 -07:00
doc Merge pull request #47238 from obsidiansystems/overrideScope-order 2018-09-24 18:04:18 -04:00
lib Merge pull request #47238 from obsidiansystems/overrideScope-order 2018-09-24 18:04:18 -04:00
maintainers Merge pull request #47112 from Avaq/add/twa 2018-09-24 21:41:37 +01:00
nixos nixos/gitlab: rebuild authorized_keys during preStart 2018-09-25 03:53:32 +02:00
pkgs Merge autoPatchelfHook improvements (#47222) 2018-09-25 05:21:01 +02:00
.dir-locals.el .dir-locals.el: init 2018-07-06 12:48:43 -04:00
.editorconfig Revert ".version: remove final newline" 2018-04-28 14:23:13 +02:00
.gitattributes gitattributes: disable merge=union in all-packages 2018-03-27 11:03:03 -05:00
.gitignore kde5: consolidate packages into desktops/kde-5 2016-03-01 10:36:00 -06:00
.version 18.09 -> 19.03 2018-09-02 16:45:00 -04:00
COPYING 2018 will be the year of NixOS 2018-01-04 17:59:52 -05:00
default.nix Reference a local copy of the release notes in the 'version too old' warning, plus a redirect to the support links 2018-08-30 09:05:57 -04:00
README.md treewide: remove mailing list references 2018-08-23 09:24:44 -07:00

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Nixpkgs is a collection of packages for the Nix package manager. It is periodically built and tested by the Hydra build daemon as so-called channels. To get channel information via git, add nixpkgs-channels as a remote:

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% git rebase channels/nixos-18.03

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