core/pkgs/by-name/gl/glib/default.nix

{ config, lib, stdenv, fetchurl, fetchpatch, gettext, meson, ninja, pkg-config
, perl, python3, libiconv, zlib, libffi, pcre2, elfutils, # gnome,
libselinux, bash, gnum4, gtk-doc, docbook_xsl, docbook_xml_dtd_45, libxslt
# use util-linuxMinimal to avoid circular dependency (util-linux, systemd, glib)
, util-linuxMinimal ? null, buildPackages

# for passthru.tests
# this is just for tests (not in the closure of any regular package)
, coreutils, dbus, libxml2, tzdata, desktop-file-utils, shared-mime-info, darwin
# , makeHardcodeGsettingsPatch
, testers }:

assert stdenv.isLinux -> util-linuxMinimal != null;

let
  # Some packages don't get "Cflags" from pkg-config correctly
  # and then fail to build when directly including like <glib/...>.
  # This is intended to be run in postInstall of any package
  # which has $out/include/ containing just some disjunct directories.
  flattenInclude = ''
    for dir in "''${!outputInclude}"/include/*; do
      cp -r "$dir"/* "''${!outputInclude}/include/"
      rm -r "$dir"
      ln -s . "$dir"
    done
    ln -sr -t "''${!outputInclude}/include/" "''${!outputInclude}"/lib/*/include/* 2>/dev/null || true
  '';

  buildDocs = stdenv.hostPlatform == stdenv.buildPlatform
    && !stdenv.hostPlatform.isStatic;

in stdenv.mkDerivation (finalAttrs: {
  pname = "glib";
  version = "2.78.4";

  src = fetchurl {
    url = "mirror://gnome/sources/glib/${
        lib.versions.majorMinor finalAttrs.version
      }/glib-${finalAttrs.version}.tar.xz";
    sha256 = "sha256-JLjgZy3KEgzDLTlLzLhYROcy4E/nXRi7BXOy28dUj2M=";
  };

  patches = lib.optionals stdenv.isDarwin [ ./darwin-compilation.patch ]
    ++ lib.optionals stdenv.hostPlatform.isMusl [
      ./quark_init_on_demand.patch
      ./gobject_init_on_demand.patch
    ] ++ [
      (fetchpatch {
        name = "GLib-against-PCRE2-10.43.patch";
        url =
          "https://gitlab.gnome.org/GNOME/glib/-/commit/cce3ae98a2c1966719daabff5a4ec6cf94a846f6.patch";
        hash = "sha256-vgKzb5hQmFQGD8zxRrXnuX9Gpg/TeSrzehlOH2vA1xU=";
      })

      ./glib-appinfo-watch.patch
      ./schema-override-variable.patch

      # Add support for Pantheon’s terminal emulator.
      ./elementary-terminal-support.patch

      # GLib contains many binaries used for different purposes;
      # we will install them to different outputs:
      # 1. Tools for desktop environment ($bin)
      #    * gapplication (non-darwin)
      #    * gdbus
      #    * gio
      #    * gio-launch-desktop (symlink to $out)
      #    * gsettings
      # 2. Development/build tools ($dev)
      #    * gdbus-codegen
      #    * gio-querymodules
      #    * glib-compile-resources
      #    * glib-compile-schemas
      #    * glib-genmarshal
      #    * glib-gettextize
      #    * glib-mkenums
      #    * gobject-query
      #    * gresource
      #    * gtester
      #    * gtester-report
      # 3. Tools for desktop environment that cannot go to $bin due to $out depending on them ($out)
      #    * gio-launch-desktop
      ./split-dev-programs.patch

      # Disable flaky test.
      # https://gitlab.gnome.org/GNOME/glib/-/issues/820
      ./skip-timer-test.patch
    ];

  outputs = [ "bin" "out" "dev" "devdoc" ];

  setupHook = ./setup-hook.sh;

  buildInputs = [ finalAttrs.setupHook pcre2 ]
    ++ lib.optionals (!stdenv.hostPlatform.isWindows) [
      bash
      gnum4 # install glib-gettextize and m4 macros for other apps to use
    ] ++ lib.optionals (lib.meta.availableOn stdenv.hostPlatform elfutils)
    [ elfutils ] ++ lib.optionals stdenv.isLinux [
      libselinux
      util-linuxMinimal # for libmount
    ] ++ lib.optionals stdenv.isDarwin (with darwin.apple_sdk.frameworks; [
      AppKit
      Carbon
      Cocoa
      CoreFoundation
      CoreServices
      Foundation
    ]) ++ lib.optionals buildDocs [
      # Note: this needs to be both in buildInputs and nativeBuildInputs. The
      # Meson gtkdoc module uses find_program to look it up (-> build dep), but
      # glib's own Meson configuration uses the host pkg-config to find its
      # version (-> host dep). We could technically go and fix this in glib, add
      # pkg-config to depsBuildBuild, but this would be a futile exercise since
      # Meson's gtkdoc integration does not support cross compilation[1] anyway
      # and this derivation disables the docs build when cross compiling.
      #
      # [1] https://github.com/mesonbuild/meson/issues/2003
      gtk-doc
    ];

  strictDeps = true;

  nativeBuildInputs =
    [ meson ninja pkg-config perl python3 gettext libxslt docbook_xsl ]
    ++ lib.optionals buildDocs [ gtk-doc docbook_xml_dtd_45 libxml2 ];

  propagatedBuildInputs = [ zlib libffi gettext libiconv ];

  mesonFlags = [
    # Avoid the need for gobject introspection binaries in PATH in cross-compiling case.
    # Instead we just copy them over from the native output.
    "-Dgtk_doc=${lib.boolToString buildDocs}"
    "-Dnls=enabled"
    "-Ddevbindir=${placeholder "dev"}/bin"
  ] ++ lib.optionals (!lib.meta.availableOn stdenv.hostPlatform elfutils)
    [ "-Dlibelf=disabled" ] ++ lib.optionals (!stdenv.isDarwin) [
      "-Dman=true" # broken on Darwin
    ] ++ lib.optionals stdenv.isFreeBSD [ "-Db_lundef=false" "-Dxattr=false" ];

  env.NIX_CFLAGS_COMPILE = toString [
    "-Wno-error=nonnull"
    # Default for release buildtype but passed manually because
    # we're using plain
    "-DG_DISABLE_CAST_CHECKS"
  ];

  postPatch = ''
    chmod +x gio/tests/gengiotypefuncs.py
    patchShebangs gio/tests/gengiotypefuncs.py
    chmod +x docs/reference/gio/concat-files-helper.py
    patchShebangs docs/reference/gio/concat-files-helper.py
    patchShebangs glib/gen-unicode-tables.pl
    patchShebangs glib/tests/gen-casefold-txt.py
    patchShebangs glib/tests/gen-casemap-txt.py
    patchShebangs tools/gen-visibility-macros.py

    # Needs machine-id, comment the test
    sed -e '/\/gdbus\/codegen-peer-to-peer/ s/^\/*/\/\//' -i gio/tests/gdbus-peer.c
    sed -e '/g_test_add_func/ s/^\/*/\/\//' -i gio/tests/gdbus-address-get-session.c
    # All gschemas fail to pass the test, upstream bug?
    sed -e '/g_test_add_data_func/ s/^\/*/\/\//' -i gio/tests/gschema-compile.c
    # Cannot reproduce the failing test_associations on hydra
    sed -e '/\/appinfo\/associations/d' -i gio/tests/appinfo.c
    # Needed because of libtool wrappers
    sed -e '/g_subprocess_launcher_set_environ (launcher, envp);/a g_subprocess_launcher_setenv (launcher, "PATH", g_getenv("PATH"), TRUE);' -i gio/tests/gsubprocess.c
  '' + lib.optionalString stdenv.hostPlatform.isWindows ''
    substituteInPlace gio/win32/meson.build \
      --replace "libintl, " ""
  '';

  postConfigure = ''
    patchShebangs gio/gdbus-2.0/codegen/gdbus-codegen gobject/glib-{genmarshal,mkenums}
  '';

  DETERMINISTIC_BUILD = 1;

  postInstall = ''
    moveToOutput "share/glib-2.0" "$dev"
    substituteInPlace "$dev/bin/gdbus-codegen" --replace "$out" "$dev"
    sed -i "$dev/bin/glib-gettextize" -e "s|^gettext_dir=.*|gettext_dir=$dev/share/glib-2.0/gettext|"

    # This file is *included* in gtk3 and would introduce runtime reference via __FILE__.
    sed '1i#line 1 "glib-${finalAttrs.version}/include/glib-2.0/gobject/gobjectnotifyqueue.c"' \
      -i "$dev"/include/glib-2.0/gobject/gobjectnotifyqueue.c
    for i in $bin/bin/*; do
      moveToOutput "share/bash-completion/completions/''${i##*/}" "$bin"
    done
    for i in $dev/bin/*; do
      moveToOutput "share/bash-completion/completions/''${i##*/}" "$dev"
    done
  '' + lib.optionalString (!buildDocs) ''
    cp -r ${buildPackages.glib.devdoc} $devdoc
  '';

  # Move man pages to the same output as their binaries (needs to be
  # done after preFixupHooks which moves man pages too - in
  # _multioutDocs)
  postFixup = ''
    for i in $dev/bin/*; do
      moveToOutput "share/man/man1/''${i##*/}.1.*" "$dev"
    done
  '';

  nativeCheckInputs = [ tzdata desktop-file-utils shared-mime-info ];

  preCheck = lib.optionalString
    finalAttrs.finalPackage.doCheck or config.doCheckByDefault or false ''
      export LD_LIBRARY_PATH="$NIX_BUILD_TOP/glib-${finalAttrs.version}/glib/.libs''${LD_LIBRARY_PATH:+:}$LD_LIBRARY_PATH"
      export TZDIR="${tzdata}/share/zoneinfo"
      export XDG_CACHE_HOME="$TMP"
      export XDG_RUNTIME_HOME="$TMP"
      export HOME="$TMP"
      export XDG_DATA_DIRS="${desktop-file-utils}/share:${shared-mime-info}/share"
      export G_TEST_DBUS_DAEMON="${dbus}/bin/dbus-daemon"
      export PATH="$PATH:$(pwd)/gobject"
      echo "PATH=$PATH"
    '';

  separateDebugInfo = stdenv.isLinux;

  passthru = rec {
    gioModuleDir = "lib/gio/modules";

    makeSchemaDataDirPath = dir: name: "${dir}/share/gsettings-schemas/${name}";
    makeSchemaPath = dir: name:
      "${makeSchemaDataDirPath dir name}/glib-2.0/schemas";
    getSchemaPath = pkg: makeSchemaPath pkg pkg.name;
    getSchemaDataDirPath = pkg: makeSchemaDataDirPath pkg pkg.name;

    tests = {
      withChecks =
        finalAttrs.finalPackage.overrideAttrs (_: { doCheck = true; });
      pkg-config = testers.testMetaPkgConfig finalAttrs.finalPackage;
    };

    inherit flattenInclude;
    # updateScript = gnome.updateScript {
    #   packageName = "glib";
    #   versionPolicy = "odd-unstable";
    # };

    # mkHardcodeGsettingsPatch =
    #   {
    #     src,
    #     glib-schema-to-var,
    #   }:
    #   builtins.trace
    #     "glib.mkHardcodeGsettingsPatch is deprecated, please use makeHardcodeGsettingsPatch instead"
    #     (makeHardcodeGsettingsPatch {
    #       inherit src;
    #       schemaIdToVariableMapping = glib-schema-to-var;
    #     });
  };

  meta = with lib; {
    description = "C library of programming buildings blocks";
    homepage = "https://gitlab.gnome.org/GNOME/glib";
    license = licenses.lgpl21Plus;
    # maintainers = teams.gnome.members ++ (with maintainers; [ lovek323 raskin ]);
    pkgConfigModules = [ "gio-2.0" "gobject-2.0" "gthread-2.0" ];
    platforms = platforms.unix ++ platforms.windows;

    longDescription = ''
      GLib provides the core application building blocks for libraries
      and applications written in C.  It provides the core object
      system used in GNOME, the main loop implementation, and a large
      set of utility functions for strings and common data structures.
    '';
  };
})