shell.nix


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# Nix shell entry point
#
# SPDX-FileCopyrightText: 2023 Nguyễn Gia Phong
# SPDX-License-Identifier: AGPL-3.0-or-later

with import <nixpkgs> { };
let
  grep-2_6 = fetchurl {
    url = "mirror://gnu/grep/grep-2.6.tar.xz";
    hash = "sha256-YsNien9DBt1gBAED27fZ8SIOSlTFV9ndDEwy9t1itRE=";
  };
  grep-2_12 = fetchurl {
    url = "mirror://gnu/grep/grep-2.12.tar.xz";
    hash = "sha256-Tc4KT7g93QEg31HgC1L6dg8u2GddTUwLCuZCumkurWQ=";
  };
  grep = version: base: commit: hash: callPackage ./grep.nix {
    inherit version;
    inherit base;
    snapshot = fetchurl {
      url = "http://git.savannah.gnu.org/cgit/grep.git/snapshot/grep-${commit}.tar.gz";
      inherit hash;
    };
  };
in mkShell {
  packages = [
    (grep "8f08d8e2.parent" grep-2_6
      "c1cb19fe67f4c83f9232087ae03c178905d62b0d"
      "sha256-tT3H9pehJ8X6XPf6qyhUvjKspQZXvCd2I4uQQuabOn8=")
    (grep "8f08d8e2" grep-2_6
      "8f08d8e282bf3d4917e94135e67ba17d738313ce"
      "sha256-xQO/d/nTk/q/7Sq6m+exZX7jwYzqbhcKirw9tqC7+zI=")
    (grep "55cf7b6a.parent" grep-2_12
      "a2e0193455e620f6bad1005500da418d9eba2ae6"
      "sha256-Q1Xye4qHdWOlZSJ+S+T9Cy/71OLN+WE97Va84BFoV/Q=")
    (grep "55cf7b6a" grep-2_12
      "55cf7b6a1905320c36702a476b09ebb29a2934d3"
      "sha256-uUHEG4bDDNFiVgj/1mIkttp1B7tlZ1HOWJGPEfbCErU=")
  ];
}