srhb

let
  overlay = self: super: {
    opencv3 = super.opencv3.overrideAttrs (oa: rec {
      version = "3.4.3";
      src = self.fetchFromGitHub {
        owner  = "opencv";
        repo   = "opencv";
        rev    = version;
        sha256 = "138q3wiv4g4xvqzsp93xaqayv7kz7bl2vrgppp8jm8w6m25cd4i2";
        };

srhb

let
  overlay = self: super: {
    python = super.python.override {
      packageOverrides = pself: psuper: {
        opencv3 = pself.toPythonModule ((super.opencv3.overrideAttrs (oa: rec {
          version = "3.4.3";
          src = self.fetchFromGitHub {
            owner  = "opencv";
            repo   = "opencv";
            rev    = version;

srhb

/nix/store/b32cc55x77wr8vcbb0flb5sr8df893qj-kubernetes-1.11.2.drv
+---/nix/store/9krlzvny65gdc8s7kpb6lkx8cd02c25b-default-builder.sh
+---/nix/store/x55fdqpxr93wwfjbsh2cyp9vv51wjflf-bash-4.4-p23.drv
|   +---/nix/store/20sqhza7ab7ah73bxj1ydzx7b4y0fs8f-bash44-021.drv
|   +---/nix/store/29w58xpj3jhbv2bppxiyid5icfhfayp1-bash44-012.drv
|   +---/nix/store/635dy76rd1211p02ryzz5zkfwlwl1hkd-bash44-015.drv
|   +---/nix/store/7xbxf2h7560iscm4vl3yziy6bkq497db-bash44-002.drv
|   +---/nix/store/9c8v0sgy158p18wh3gfmyi45fic8gkz7-bash44-019.drv
|   +---/nix/store/9krlzvny65gdc8s7kpb6lkx8cd02c25b-default-builder.sh [...]
|   +---/nix/store/bfil786fxmnjcwc7mqpm0mk4xnm2cphg-bootstrap-tools.drv

srhb

/nix/store/gcyi0bxz14saqmwbrc8g0n133ya466yh-kubernetes-1.11.2.drv
+---/nix/store/9krlzvny65gdc8s7kpb6lkx8cd02c25b-default-builder.sh
+---/nix/store/x55fdqpxr93wwfjbsh2cyp9vv51wjflf-bash-4.4-p23.drv
|   +---/nix/store/20sqhza7ab7ah73bxj1ydzx7b4y0fs8f-bash44-021.drv
|   +---/nix/store/29w58xpj3jhbv2bppxiyid5icfhfayp1-bash44-012.drv
|   +---/nix/store/635dy76rd1211p02ryzz5zkfwlwl1hkd-bash44-015.drv
|   +---/nix/store/7xbxf2h7560iscm4vl3yziy6bkq497db-bash44-002.drv
|   +---/nix/store/9c8v0sgy158p18wh3gfmyi45fic8gkz7-bash44-019.drv
|   +---/nix/store/9krlzvny65gdc8s7kpb6lkx8cd02c25b-default-builder.sh [...]
|   +---/nix/store/bfil786fxmnjcwc7mqpm0mk4xnm2cphg-bootstrap-tools.drv

srhb

let
  overlay = self: super: {
    nix = super.nix.overrideAttrs (oa: {
      doCheck = false;
    });
  };
in
  { pkgs? import <nixpkgs> { overlays = [ overlay ];} }:
  pkgs

srhb

let
  overlay = self: super: {
    nix = super.nix.overrideAttrs (oa: {
      doCheck = false;
    });
  };
in
  import <nixpkgs> { overlays = [ overlay ]; }

srhb

self: super: {
  haskellPackages = with self.haskell.lib; super.haskellPackages.extend (selfHS: superHS: {
    gitit = overrideCabal superHS.gitit (oa: {
      src = self.fetchFromGitHub {
        owner = "jgm";
        repo = "gitit";
        rev = "ee9927f8c22bc76353aa8589220b6aafc343847c";
        sha256 = "19f3wj83i8igsy86ri54qynvi94061lhgy6wr2brypmqpa160l93";
      };
    });

srhb

lens-aeson-lossy.hs:30:27: error:
    • No instance for (Data.String.IsString
                         (Getting
                            (base-4.11.1.0:Data.Semigroup.Internal.Endo [a0]) Value a0))
        arising from the literal ‘"mapset"’
        (maybe you haven't applied a function to enough arguments?)
    • In the second argument of ‘(^..)’, namely ‘"mapset"’
      In the first argument of ‘(^@..)’, namely ‘o ^.. "mapset"’
      In the second argument of ‘($)’, namely

srhb

~/scratch
❯ mkdir testrepo && cd testrepo

~/scratch/testrepo
❯ git init
Initialized empty Git repository in /home/sarah/scratch/testrepo/.git/

~/scratch/testrepo master
❯ echo '#!/bin/sh\necho foo' >> .git/hooks/pre-commit

srhb

#!/nix/store/r47p5pzx52m3n34vdgqpk5rvqgm0m24m-bash-4.4-p23/bin/bash
/nix/store/qcn9ck2zfk9bj5m3g1jv0lcc9yicjq2j-git-2.19.1/bin/git fetch -fu \
${2:-$(/nix/store/qcn9ck2zfk9bj5m3g1jv0lcc9yicjq2j-git-2.19.1/bin/git remote | grep "^upstream" || echo origin)} \
      "refs/pull/$1/head:pr/$1" && \
      /nix/store/qcn9ck2zfk9bj5m3g1jv0lcc9yicjq2j-git-2.19.1/bin/git checkout "pr/$1";