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-rw-r--r--nixpkgs/pkgs/shells/fish/default.nix247
1 files changed, 247 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/shells/fish/default.nix b/nixpkgs/pkgs/shells/fish/default.nix
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index 000000000000..420aac7607e4
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+++ b/nixpkgs/pkgs/shells/fish/default.nix
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+{ stdenv
+, lib
+, fetchurl
+, coreutils
+, utillinux
+, which
+, gnused
+, gnugrep
+, groff
+, man-db
+, getent
+, libiconv
+, pcre2
+, gettext
+, ncurses
+, python3
+, cmake
+
+, runCommand
+, writeText
+, nixosTests
+, useOperatingSystemEtc ? true
+}:
+let
+  etcConfigAppendix = writeText "config.fish.appendix" ''
+    ############### ↓ Nix hook for sourcing /etc/fish/config.fish ↓ ###############
+    #                                                                             #
+    # Origin:
+    #     This fish package was called with the attribute
+    #     "useOperatingSystemEtc = true;".
+    #
+    # Purpose:
+    #     Fish ordinarily sources /etc/fish/config.fish as
+    #        $__fish_sysconfdir/config.fish,
+    #     and $__fish_sysconfdir is defined at compile-time, baked into the C++
+    #     component of fish. By default, it is set to "/etc/fish". When building
+    #     through Nix, $__fish_sysconfdir gets set to $out/etc/fish. Here we may
+    #     have included a custom $out/etc/config.fish in the fish package,
+    #     as specified, but according to the value of useOperatingSystemEtc, we
+    #     may want to further source the real "/etc/fish/config.fish" file.
+    #
+    #     When this option is enabled, this segment should appear the very end of
+    #     "$out/etc/config.fish". This is to emulate the behavior of fish itself
+    #     with respect to /etc/fish/config.fish and ~/.config/fish/config.fish:
+    #     source both, but source the more global configuration files earlier
+    #     than the more local ones, so that more local configurations inherit
+    #     from but override the more global locations.
+
+    if test -f /etc/fish/config.fish
+      source /etc/fish/config.fish
+    end
+
+    #                                                                             #
+    ############### ↑ Nix hook for sourcing /etc/fish/config.fish ↑ ###############
+  '';
+
+  fishPreInitHooks = writeText "__fish_build_paths_suffix.fish" ''
+    # source nixos environment
+    # note that this is required:
+    #   1. For all shells, not just login shells (mosh needs this as do some other command-line utilities)
+    #   2. Before the shell is initialized, so that config snippets can find the commands they use on the PATH
+    builtin status --is-login
+    or test -z "$__fish_nixos_env_preinit_sourced" -a -z "$ETC_PROFILE_SOURCED" -a -z "$ETC_ZSHENV_SOURCED"
+    and test -f /etc/fish/nixos-env-preinit.fish
+    and source /etc/fish/nixos-env-preinit.fish
+    and set -gx __fish_nixos_env_preinit_sourced 1
+
+    test -n "$NIX_PROFILES"
+    and begin
+      # We ensure that __extra_* variables are read in $__fish_datadir/config.fish
+      # with a preference for user-configured data by making sure the package-specific
+      # data comes last. Files are loaded/sourced in encounter order, duplicate
+      # basenames get skipped, so we assure this by prepending Nix profile paths
+      # (ordered in reverse of the $NIX_PROFILE variable)
+      #
+      # Note that at this point in evaluation, there is nothing whatsoever on the
+      # fish_function_path. That means we don't have most fish builtins, e.g., `eval`.
+
+
+      # additional profiles are expected in order of precedence, which means the reverse of the
+      # NIX_PROFILES variable (same as config.environment.profiles)
+      set -l __nix_profile_paths (echo $NIX_PROFILES | ${coreutils}/bin/tr ' ' '\n')[-1..1]
+
+      set __extra_completionsdir \
+        $__nix_profile_paths"/etc/fish/completions" \
+        $__nix_profile_paths"/share/fish/vendor_completions.d" \
+        $__extra_completionsdir
+      set __extra_functionsdir \
+        $__nix_profile_paths"/etc/fish/functions" \
+        $__nix_profile_paths"/share/fish/vendor_functions.d" \
+        $__extra_functionsdir
+      set __extra_confdir \
+        $__nix_profile_paths"/etc/fish/conf.d" \
+        $__nix_profile_paths"/share/fish/vendor_conf.d" \
+        $__extra_confdir
+    end
+  '';
+
+  fish = stdenv.mkDerivation rec {
+    pname = "fish";
+    version = "3.1.2";
+
+    src = fetchurl {
+      # There are differences between the release tarball and the tarball GitHub
+      # packages from the tag. Specifically, it comes with a file containing its
+      # version, which is used in `build_tools/git_version_gen.sh` to determine
+      # the shell's actual version (and what it displays when running `fish
+      # --version`), as well as the local documentation for all builtins (and
+      # maybe other things).
+      url = "https://github.com/fish-shell/fish-shell/releases/download/${version}/${pname}-${version}.tar.gz";
+      sha256 = "1vblmb3x2k2cb0db5jdyflppnlqsm7i6jjaidyhmvaaw7ch2gffm";
+    };
+
+    # We don't have access to the codesign executable, so we patch this out.
+    # For more information, see: https://github.com/fish-shell/fish-shell/issues/6952
+    patches = lib.optional stdenv.isDarwin ./dont-codesign-on-mac.diff;
+
+    nativeBuildInputs = [
+      cmake
+    ];
+
+    buildInputs = [
+      ncurses
+      libiconv
+      pcre2
+    ];
+
+    cmakeFlags = [
+      "-DCMAKE_INSTALL_DOCDIR=${placeholder "out"}/share/doc/fish"
+    ];
+
+    preConfigure = ''
+      patchShebangs ./build_tools/git_version_gen.sh
+    '';
+
+    # Required binaries during execution
+    # Python: Autocompletion generated from manpages and config editing
+    propagatedBuildInputs = [
+      coreutils
+      gnugrep
+      gnused
+      python3
+      groff
+      gettext
+    ] ++ lib.optional (!stdenv.isDarwin) man-db;
+
+    postInstall = with lib; ''
+      sed -r "s|command grep|command ${gnugrep}/bin/grep|" \
+          -i "$out/share/fish/functions/grep.fish"
+      sed -i "s|which |${which}/bin/which |"               \
+             "$out/share/fish/functions/type.fish"
+      sed -e "s|\|cut|\|${coreutils}/bin/cut|"             \
+          -i "$out/share/fish/functions/fish_prompt.fish"
+      sed -e "s|gettext |${gettext}/bin/gettext |"         \
+          -e "s|which |${which}/bin/which |"               \
+          -i "$out/share/fish/functions/_.fish"
+      sed -e "s|uname|${coreutils}/bin/uname|"             \
+          -i "$out/share/fish/functions/__fish_pwd.fish"   \
+             "$out/share/fish/functions/prompt_pwd.fish"
+      sed -e "s|sed |${gnused}/bin/sed |"                  \
+          -i "$out/share/fish/functions/alias.fish"        \
+             "$out/share/fish/functions/prompt_pwd.fish"
+      sed -i "s|nroff |${groff}/bin/nroff |"               \
+             "$out/share/fish/functions/__fish_print_help.fish"
+      sed -e "s|clear;|${getBin ncurses}/bin/clear;|"      \
+          -i "$out/share/fish/functions/fish_default_key_bindings.fish"
+      sed -e "s|python3|${getBin python3}/bin/python3|"    \
+          -i $out/share/fish/functions/{__fish_config_interactive.fish,fish_config.fish,fish_update_completions.fish}
+      sed -i "s|/usr/local/sbin /sbin /usr/sbin||"         \
+             $out/share/fish/completions/{sudo.fish,doas.fish}
+
+      cat > $out/share/fish/functions/__fish_anypython.fish <<EOF
+      function __fish_anypython
+          echo ${python3.interpreter}
+          return 0
+      end
+      EOF
+
+    '' + optionalString stdenv.isLinux ''
+      sed -e "s| ul| ${utillinux}/bin/ul|" \
+          -i "$out/share/fish/functions/__fish_print_help.fish"
+      for cur in $out/share/fish/functions/*.fish; do
+        sed -e "s|/usr/bin/getent|${getent}/bin/getent|" \
+            -i "$cur"
+      done
+
+    '' + optionalString (!stdenv.isDarwin) ''
+      sed -i "s|Popen(\['manpath'|Popen(\['${man-db}/bin/manpath'|" \
+              "$out/share/fish/tools/create_manpage_completions.py"
+      sed -i "s|command manpath|command ${man-db}/bin/manpath|"     \
+              "$out/share/fish/functions/man.fish"
+    '' + optionalString useOperatingSystemEtc ''
+      tee -a $out/etc/fish/config.fish < ${etcConfigAppendix}
+    '' + ''
+      tee -a $out/share/fish/__fish_build_paths.fish < ${fishPreInitHooks}
+    '';
+
+    enableParallelBuilding = true;
+
+    meta = with lib; {
+      description = "Smart and user-friendly command line shell";
+      homepage = "http://fishshell.com/";
+      license = licenses.gpl2;
+      platforms = platforms.unix;
+      maintainers = with maintainers; [ ocharles cole-h ];
+    };
+
+    passthru = {
+      shellPath = "/bin/fish";
+      tests = {
+        nixos = nixosTests.fish;
+
+        # Test the fish_config tool by checking the generated splash page.
+        # Since the webserver requires a port to run, it is not started.
+        fishConfig =
+          let fishScript = writeText "test.fish" ''
+            set -x __fish_bin_dir ${fish}/bin
+            echo $__fish_bin_dir
+            cp -r ${fish}/share/fish/tools/web_config/* .
+            chmod -R +w *
+
+            # if we don't set `delete=False`, the file will get cleaned up
+            # automatically (leading the test to fail because there's no
+            # tempfile to check)
+            sed -e "s@, mode='w'@, mode='w', delete=False@" -i webconfig.py
+
+            # we delete everything after the fileurl is assigned
+            sed -e '/fileurl =/q' -i webconfig.py
+            echo "print(fileurl)" >> webconfig.py
+
+            # and check whether the message appears on the page
+            cat (${python3}/bin/python ./webconfig.py \
+              | tail -n1 | sed -ne 's|.*\(/build/.*\)|\1|p' \
+            ) | grep 'a href="http://localhost.*Start the Fish Web config'
+
+            # cannot test the http server because it needs a localhost port
+          '';
+          in
+          runCommand "test-web-config" { } ''
+            HOME=$(mktemp -d)
+            ${fish}/bin/fish ${fishScript} && touch $out
+          '';
+      };
+    };
+  };
+in
+fish