;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013 Cyril Roelandt <tipecaml@gmail.com>
;;; Copyright © 2016, 2017, 2018, 2019, 2020 Efraim Flashner <efraim@flashner.co.il>
;;; Copyright © 2016, 2017 Nikita <nikita@n0.is>
;;; Copyright © 2017 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2017 Marius Bakke <mbakke@fastmail.com>
;;; Copyright © 2018, 2019, 2020 Tobias Geerinckx-Rice <me@tobias.gr>
;;; Copyright © 2019 HiPhish <hiphish@posteo.de>
;;; Copyright © 2019 Julien Lepiller <julien@lepiller.eu>
;;; Copyright © 2019, 2020 Jakub Kądziołka <kuba@kadziolka.net>
;;; Copyright © 2020 Jack Hill <jackhill@jackhill.us>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (gnu packages vim)
  #:use-module ((guix licenses) #:prefix license:)
  #:use-module (guix packages)
  #:use-module (guix utils)
  #:use-module (guix download)
  #:use-module (guix git-download)
  #:use-module (guix build-system cmake)
  #:use-module (guix build-system copy)
  #:use-module (guix build-system gnu)
  #:use-module (guix build-system python)
  #:use-module (gnu packages)
  #:use-module (gnu packages acl)
  #:use-module (gnu packages admin) ; For GNU hostname
  #:use-module (gnu packages attr)
  #:use-module (gnu packages autotools)
  #:use-module (gnu packages base)
  #:use-module (gnu packages fontutils)
  #:use-module (gnu packages gawk)
  #:use-module (gnu packages gettext)
  #:use-module (gnu packages glib)
  #:use-module (gnu packages gperf)
  #:use-module (gnu packages groff)
  #:use-module (gnu packages gtk)
  #:use-module (gnu packages image)
  #:use-module (gnu packages jemalloc)
  #:use-module (gnu packages libevent)
  #:use-module (gnu packages linux)
  #:use-module (gnu packages lua)
  #:use-module (gnu packages ncurses)
  #:use-module (gnu packages perl)
  #:use-module (gnu packages pkg-config)
  #:use-module (gnu packages python)
  #:use-module (gnu packages python-xyz)
  #:use-module (gnu packages ruby)
  #:use-module (gnu packages serialization)
  #:use-module (gnu packages shells)
  #:use-module (gnu packages tcl)
  #:use-module (gnu packages text-editors)
  #:use-module (gnu packages terminals)
  #:use-module (gnu packages xdisorg)
  #:use-module (gnu packages xorg))

(define-public vim
  (package
    (name "vim")
    (version "8.2.2067")
    (source (origin
             (method git-fetch)
             (uri (git-reference
                    (url "https://github.com/vim/vim")
                    (commit (string-append "v" version))))
             (file-name (git-file-name name version))
             (sha256
              (base32
               "02cd953h69k9klrcwi756namwg39ka7if9ccc399ihb1l5f3kr66"))))
    (build-system gnu-build-system)
    (arguments
     `(#:test-target "test"
       #:parallel-tests? #f
       #:phases
       (modify-phases %standard-phases
         (add-after 'configure 'patch-absolute-paths
           (lambda _
             (substitute* "runtime/tools/mve.awk"
               (("/usr/bin/nawk") (which "gawk")))
             (substitute* '("src/testdir/Makefile"
                            "src/testdir/test_normal.vim"
                            "src/testdir/test_popupwin.vim"
                            "src/testdir/test_system.vim"
                            "src/testdir/test_terminal.vim"
                            "src/testdir/test_terminal2.vim")
               (("/bin/sh") (which "sh")))
             (substitute* "src/testdir/test_autocmd.vim"
               (("/bin/kill") (which "kill")))
             #t))
         (add-before 'check 'set-environment-variables
           (lambda* (#:key inputs #:allow-other-keys)
             ;; One of the tests tests timezone-dependent functions.
             (setenv "TZDIR"
                     (string-append (assoc-ref inputs "tzdata")
                                    "/share/zoneinfo"))

             ;; Make sure the TERM environment variable is set for the tests
             (setenv "TERM" "xterm")
             #t))
         (add-before 'check 'skip-or-fix-failing-tests
           (lambda _
             ;; This test assumes that PID 1 is run as root and that the user
             ;; running the test suite does not have permission to kill(1, 0)
             ;; it.  This is not true in the build container, where both PID 1
             ;; and the test suite are run as the same user.  Skip the test.
             ;; An alternative fix would be to patch the PID used to a random
             ;; 32-bit value and hope it never shows up in the test environment.
             (substitute* "src/testdir/test_swap.vim"
               (("if !IsRoot\\(\\)") "if 0"))

             ;; These tests check how the terminal looks after executing some
             ;; actions.  The path of the bash binary is shown, which results in
             ;; a difference being detected.  Patching the expected result is
             ;; non-trivial due to the special format used, so skip the test.
             (substitute* "src/testdir/test_terminal.vim"
               ((".*Test_open_term_from_cmd.*" line)
                (string-append line "return\n"))
               ((".*Test_terminal_postponed_scrollback.*" line)
                (string-append line "return\n")))
             (substitute* "src/testdir/test_popupwin.vim"
               ((".*Test_popup_drag_termwin.*" line)
                (string-append line "return\n")))
             #t))
         (add-after 'install 'install-guix.vim
           (lambda* (#:key inputs outputs #:allow-other-keys)
             (let ((vimdir (string-append (assoc-ref outputs "out") "/share/vim")))
               (mkdir-p vimdir)
               (copy-file (assoc-ref inputs "guix.vim")
                          (string-append vimdir "/vimrc"))
               #t))))))
    (inputs
     `(("gawk" ,gawk)
       ("ncurses" ,ncurses)
       ("perl" ,perl)
       ("tcsh" ,tcsh)))                 ; For runtime/tools/vim32
    (native-inputs
     `(("libtool" ,libtool)
       ("guix.vim" ,(search-auxiliary-file "guix.vim"))

       ;; For tests.
       ("tzdata" ,tzdata-for-tests)))
    (home-page "https://www.vim.org/")
    (synopsis "Text editor based on vi")
    ;; The description shares language with the vim-full package. When making
    ;; changes, check if the other description also needs to be updated.
    (description
     "Vim is a highly configurable text editor built to enable efficient text
editing.  It is an improved version of the vi editor distributed with most UNIX
systems.

Vim is often called a \"programmer's editor,\" and so useful for programming
that many consider it an entire IDE.  It's not just for programmers, though.
Vim is perfect for all kinds of text editing, from composing email to editing
configuration files.")
    (license license:vim)))

(define-public xxd
  (package (inherit vim)
    (name "xxd")
    (arguments
     `(#:make-flags (list ,(string-append "CC=" (cc-for-target)))
       #:tests? #f ; there are none
       #:phases
       (modify-phases %standard-phases
         (delete 'configure)
         (add-after 'unpack 'chdir
           (lambda _
             (chdir "src/xxd")
             #t))
         (replace 'install
           (lambda* (#:key outputs #:allow-other-keys)
             (let ((bin (string-append (assoc-ref outputs "out") "/bin")))
               (install-file "xxd" bin)
               #t))))))
    (inputs `())
    (native-inputs `())
    (synopsis "Hexdump utility from vim")
    (description "This package provides the Hexdump utility xxd that comes
with the editor vim.")))

(define-public vim-full
  (package
    ;; This package should share its source with Vim, but it doesn't
    ;; build reliably, and we want to keep Vim up to date due to the
    ;; frequency of important bug fixes.
    (inherit vim)
    (name "vim-full")
    (arguments
     `(#:configure-flags
       (list (string-append "--with-lua-prefix="
                            (assoc-ref %build-inputs "lua"))
             "--with-features=huge"
             "--enable-python3interp=yes"
             "--enable-perlinterp=yes"
             "--enable-rubyinterp=yes"
             "--enable-tclinterp=yes"
             "--enable-luainterp=yes"
             "--enable-cscope"
             "--enable-sniff"
             "--enable-multibyte"
             "--enable-xim"
             "--disable-selinux"
             "--enable-gui")
       ;; This flag fixes the following error:
       ;; .../libpython3.7m.a(pyexpat.o): undefined reference to symbol 'XML_FreeContentModel'
       ;; .../libexpat.so.1: error adding symbols: DSO missing from command line
       #:make-flags '("LDFLAGS=-lexpat")
       ,@(substitute-keyword-arguments (package-arguments vim)
           ((#:phases phases)
            `(modify-phases ,phases
               (add-before 'check 'start-xserver
                 (lambda* (#:key inputs #:allow-other-keys)
                   ;; Some tests require an X server, but does not start one.
                   (let ((xorg-server (assoc-ref inputs "xorg-server"))
                         (display ":1"))
                     (setenv "DISPLAY" display)
                     (zero? (system (string-append xorg-server "/bin/Xvfb "
                                                    display " &")))))))))))
    (native-inputs
     `(("pkg-config" ,pkg-config)
       ("xorg-server" ,xorg-server-for-tests)
       ,@(package-native-inputs vim)))
    (inputs
     `(("acl" ,acl)
       ("atk" ,atk)
       ("attr" ,attr)
       ("cairo" ,cairo)
       ("fontconfig" ,fontconfig)
       ("freetype" ,freetype)
       ("gdk-pixbuf" ,gdk-pixbuf)
       ("gettext" ,gettext-minimal)
       ("glib" ,glib)
       ("gpm" ,gpm)
       ("gtk" ,gtk+-2)
       ("harfbuzz" ,harfbuzz)
       ("libice" ,libice)
       ("libpng" ,libpng)
       ("libsm" ,libsm)
       ("libx11" ,libx11)
       ("libxdmcp" ,libxdmcp)
       ("libxt" ,libxt)
       ("libxpm" ,libxpm)
       ("lua" ,lua)
       ("pango" ,pango)
       ("pixman" ,pixman)
       ("python-3" ,python)
       ("ruby" ,ruby)
       ("tcl" ,tcl)
       ,@(package-inputs vim)))
    ;; The description shares language with the vim package. When making
    ;; changes, check if the other description also needs to be updated.
    (description "Vim is a highly configurable text editor built to enable efficient text
editing.  It is an improved version of the vi editor distributed with most UNIX
systems.

Vim is often called a \"programmer's editor,\" and so useful for programming
that many consider it an entire IDE.  It's not just for programmers, though.
Vim is perfect for all kinds of text editing, from composing email to editing
configuration files.

This package provides a version of Vim with many optional features enabled.
It includes a graphical interface, @command{gvim}, and support for plugins
written in the Python 3, Perl, Ruby, Tcl, and Lua programming languages.")))

(define-public vim-neocomplete
  (package
    (name "vim-neocomplete")
    (version "2.1")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
              (url "https://github.com/Shougo/neocomplete.vim")
              (commit (string-append "ver." version))))
       (file-name (git-file-name name version))
       (sha256
        (base32
         "1h6sci5mhdfg6sjsjpi8l5li02hg858zcayiwl60y9j2gqnd18lv"))))
    (build-system copy-build-system)
    (arguments
     '(#:install-plan
       '(("autoload" "share/vim/vimfiles/")
         ("doc" "share/vim/vimfiles/")
         ("plugin" "share/vim/vimfiles/"))))
    (synopsis "Next generation completion framework for Vim")
    (description
     "@code{neocomplete}, an abbreviation of 'neo-completion with cache',
is a plugin for Vim.
It provides keyword completion system by maintaining a cache of keywords in
the current buffer.  Neocomplete can be customized easily and has many more
features than Vim's built-in completion.")
    (home-page "https://github.com/Shougo/neocomplete.vim/")
    (license license:expat)))

;; There are no release tarballs.
(define-public vim-neosnippet-snippets
  (let ((commit "8e2b1c0cab9ed9a832b3743dbb65e9966a64331a")
        (revision "1"))
    (package
      (name "vim-neosnippet-snippets")
      (version (string-append "0.0.0-" revision "." (string-take commit 7)))
      (source
       (origin
         (method git-fetch)
         (uri (git-reference
               (url "https://github.com/Shougo/neosnippet-snippets")
               (commit commit)))
         (file-name (string-append name "-" version "-checkout"))
         (sha256
          (base32
           "151wpvbj6jb9jdkbhj3b77f5sq7y328spvwfbqyj1y32rg4ifmc6"))))
      (build-system copy-build-system)
      (arguments
       '(#:install-plan
         '(("neosnippets" "share/vim/vimfiles/"))))
    (synopsis "Snippets for neosnippet")
    (description
     "@code{neosnippet-snippets} provides standard snippets for the Vim plugin
@code{neosnippet}.  Snippets are small templates for commonly used code that
you can fill in on the fly.")
    (home-page "https://github.com/Shougo/neosnippet-snippets")
    (license license:expat))))

;; The released tarball is too old for our Vim.
(define-public vim-neosnippet
  (let ((commit "1bd7e23c79b73da16eb0c9469b25c376d3594583")
        (revision "1"))
  (package
    (name "vim-neosnippet")
    (version (string-append "4.2-" revision "." (string-take commit 7)))
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/Shougo/neosnippet.vim/")
             (commit commit)))
       (file-name (string-append name "-" version "-checkout"))
       (sha256
        (base32
         "0k80syscmpnj38ks1fq02ds59g0r4jlg9ll7z4qc048mgi35alw5"))))
    (build-system copy-build-system)
    (arguments
     '(#:install-plan
       '(("autoload" "share/vim/vimfiles/")
         ("doc" "share/vim/vimfiles/")
         ("ftdetect" "share/vim/vimfiles/")
         ("ftplugin" "share/vim/vimfiles/")
         ("indent" "share/vim/vimfiles/")
         ("plugin" "share/vim/vimfiles/")
         ("rplugin" "share/vim/vimfiles/")
         ("syntax" "share/vim/vimfiles/"))))
    (synopsis "Snippet support for Vim")
    (description
     "@code{neosnippet}, is a plugin for Vim which adds snippet support to Vim.
Snippets are small templates for commonly used code that you can fill in on
the fly.  To use snippets can increase your productivity in Vim a lot.
The functionality of this plug-in is quite similar to plug-ins like
@code{snipMate.vim} or @code{snippetsEmu.vim}.  But since you can choose
snippets with the neocomplcache / neocomplete interface, you might have less
trouble using them, because you do not have to remember each snippet name.")
    (home-page "https://github.com/Shougo/neosnippet.vim/")
    (license license:expat))))

(define-public vim-scheme
  (let ((commit "93827987c10f2d5dc519166a761f219204926d5f")
        (revision "1"))
    (package
      (name "vim-scheme")
      (version (string-append "0.0.0-" revision "." (string-take commit 7)))
      (source
       (origin
         (method git-fetch)
         (uri (git-reference
               (url "http://git.foldling.org/vim-scheme.git")
               (commit commit)))
         (file-name (string-append name "-" version "-checkout"))
         (sha256
          (base32
           "1ynjr1109dxgj0lz261gmzz3wf5ap1m6j6hnvl3lcyv66a4y8pjv"))))
      (build-system copy-build-system)
      (arguments
       '(#:install-plan
         '(("after" "share/vim/vimfiles/")
           ("ftplugin" "share/vim/vimfiles/")
           ("syntax" "share/vim/vimfiles/"))))
      (synopsis "Scheme syntax for Vim")
      (description
       "@code{vim-scheme} provides Scheme support for Vim (R7RS and CHICKEN).")
      (home-page "https://foldling.org/git/vim-scheme.git/")
      (license license:public-domain))))

(define-public vim-luna
  (let ((commit "633619953dcf8577168e255230f96b05f28d6371")
        (revision "1"))
    (package
      (name "vim-luna")
      (version (string-append "0.0.0-" revision "." (string-take commit 7)))
      (source
       (origin
         (method git-fetch)
         (uri (git-reference
               (url "https://github.com/notpratheek/vim-luna")
               (commit commit)))
         (file-name (string-append name "-" version "-checkout"))
         (sha256
          (base32
           "0ka3qbhsh8lix1vyj4678j7dnchkd8khhirrnn3aylxxf8fpqyg8"))))
      (build-system copy-build-system)
      (arguments
       '(#:install-plan
         '(("colors" "share/vim/vimfiles/"))))
      (synopsis "Dark color theme for Vim")
      (description
       "@code{vim-luna} is a dark color theme for Vim.")
      (home-page "https://github.com/notpratheek/vim-luna")
      (license license:expat))))

;; There are no tarball releases.
(define-public vim-context-filetype
  (let ((commit "5e85f8cae26806f391aefe2661791a6de53bcea2")
        (revision "1"))
    (package
      (name "vim-context-filetype")
      (version (string-append "0.0.0-" revision "." (string-take commit 7)))
      (source
       (origin
         (method git-fetch)
         (uri (git-reference
               (url "https://github.com/Shougo/context_filetype.vim")
               (commit commit)))
         (file-name (string-append name "-" version "-checkout"))
         (sha256
          (base32
           "0alvrfhmd91zkd9h83s8wvgyq4iakcf6rybsyjd369qbgpcqky89"))))
      (build-system copy-build-system)
      (arguments
       '(#:install-plan
         '(("doc" "share/vim/vimfiles/")
           ("autoload" "share/vim/vimfiles/"))))
      (synopsis "Context filetype library for Vim")
      (description
       "@code{vim-context-filetype} is context filetype library for Vim script.")
      (home-page "https://github.com/Shougo/context_filetype.vim")
      (license license:expat)))) ; ??? check again

(define-public vim-fugitive
  (package
    (name "vim-fugitive")
    (version "3.2")
    (source
      (origin
        (method git-fetch)
        (uri (git-reference
               (url "https://github.com/tpope/vim-fugitive")
               (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
         (base32
          "1jbn5jxadccmcz01j94d0i1bp74cixr0fpxxf1h0aqdf1ljk3d7n"))))
    (build-system copy-build-system)
    (arguments
     '(#:install-plan
       '(("autoload" "share/vim/vimfiles/")
         ("doc" "share/vim/vimfiles/")
         ("ftdetect" "share/vim/vimfiles/")
         ("plugin" "share/vim/vimfiles/")
         ("syntax" "share/vim/vimfiles/"))))
    (home-page "https://github.com/tpope/vim-fugitive")
    (synopsis "Vim plugin to work with Git")
    (description "Vim-fugitive is a wrapper for Vim that complements the
command window, where you can stage and review your changes before the next
commit or run any Git arbitrary command.")
    (license license:vim))) ; distributed under the same license as vim

(define-public vim-airline
  (package
    (name "vim-airline")
    (version "0.11")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
              (url "https://github.com/vim-airline/vim-airline")
              (commit (string-append "v" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32
         "1aksmr73648pvyc75pfdz28k2d4ky52rn7xiwcv7lz87q3vqld7k"))))
    (build-system copy-build-system)
    (arguments
     '(#:install-plan
       '(("autoload" "share/vim/vimfiles/")
         ("doc" "share/vim/vimfiles/")
         ("plugin" "share/vim/vimfiles/"))))
    (synopsis "Statusline for Vim")
    (description
     "@code{vim-airline} is an extensible statusline for Vim.
It can be extended and costumized with themes, works with unicode fonts
and powerline symbols, etc.")
    (home-page "https://github.com/vim-airline/vim-airline")
    (license license:expat)))

;; There are no tarball releases.
(define-public vim-airline-themes
  (let ((commit "e6f233231b232b6027cde6aebeeb18d9138e5324")
        (revision "2"))
    (package
      (name "vim-airline-themes")
      (version (git-version "0.0.0" revision commit))
      (source
       (origin
         (method git-fetch)
         (uri (git-reference
               (url "https://github.com/vim-airline/vim-airline-themes")
               (commit commit)))
         (file-name (git-file-name name version))
         (sha256
          (base32
           "1sb7nb7j7bz0pv1c9bgdy0smhr0jk2b1vbdv9yzghg5lrknpsbr6"))))
      (build-system copy-build-system)
      (arguments
       '(#:install-plan
         '(("autoload" "share/vim/vimfiles/")
           ("doc" "share/vim/vimfiles/")
           ("plugin" "share/vim/vimfiles/"))))
      (synopsis "Collection of themes for Vim-airline")
      (description
       "@code{vim-airline-themes} is a collection of themes for @code{vim-airline}.")
      (home-page "https://github.com/vim-airline/vim-airline-themes")
      (license license:expat))))

(define-public vim-syntastic
  (package
    (name "vim-syntastic")
    (version "3.10.0")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/vim-syntastic/syntastic")
             (commit version)))
       (file-name (git-file-name name version))
       (sha256
        (base32 "0j91f72jaz1s6aw1hpjiz30vk2ds2aqd9gisk91grsldy6nz6hhz"))))
    (build-system copy-build-system)
    (arguments
     '(#:install-plan
       '(("autoload" "share/vim/vimfiles/")
         ("doc" "share/vim/vimfiles/")
         ("plugin" "share/vim/vimfiles/")
         ("syntax_checkers" "share/vim/vimfiles/"))))
    (synopsis "Syntax checking plugin for Vim")
    (description
     "Vim-syntastic is a syntax checking plugin for Vim.  It runs files through
external syntax checkers and displays any resulting errors to the user.  This
can be done on demand, or automatically as files are saved.  If syntax errors
are detected, the user is notified.")
    (home-page "https://github.com/vim-syntastic/syntastic")
    (license license:wtfpl2)))

(define-public editorconfig-vim
  (package
    (name "editorconfig-vim")
    (version "1.1.1")
    (source
      (origin
        (method git-fetch)
        (uri (git-reference
               (url "https://github.com/editorconfig/editorconfig-vim")
               (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
         (base32
          "0mp80bi2m56bb93szw87vy6q5s85yk9g91sl4pr51316rgdv5kkv"))))
    (build-system copy-build-system)
    (arguments
     '(#:install-plan
       '(("autoload" "share/vim/vimfiles/")
         ("doc" "share/vim/vimfiles/")
         ("plugin" "share/vim/vimfiles/"))))
    (home-page "https://editorconfig.org/")
    (synopsis "EditorConfig plugin for Vim")
    (description "EditorConfig makes it easy to maintain the correct coding
style when switching between different text editors and between different
projects.  The EditorConfig project maintains a file format and plugins for
various text editors which allow this file format to be read and used by those
editors.")
    (license license:bsd-2)))

(define-public neovim-syntastic
  (package
    (inherit vim-syntastic)
    (name "neovim-syntastic")
    (arguments
     '(#:install-plan
       '(("autoload" "share/nvim/site/")
         ("doc" "share/nvim/site/")
         ("plugin" "share/nvim/site/")
         ("syntax_checkers" "share/nvim/site/"))))
    (synopsis "Syntax checking plugin for Neovim")
    (description
     "Vim-syntastic is a syntax checking plugin for Neovim.  It runs files through
external syntax checkers and displays any resulting errors to the user.  This
can be done on demand, or automatically as files are saved.  If syntax errors
are detected, the user is notified.")))

(define-public neovim
  (package
    (name "neovim")
    (version "0.4.4")
    (source
     (origin
       (method git-fetch)
       (uri (git-reference
             (url "https://github.com/neovim/neovim")
             (commit (string-append "v" version))))
       (file-name (git-file-name name version))
       (sha256
        (base32 "11zyj6jvkwas3n6w1ckj3pk6jf81z1g7ngg4smmwm7c27y2a6f2m"))))
    (build-system cmake-build-system)
    (arguments
     `(#:modules ((srfi srfi-26)
                  (guix build cmake-build-system)
                  (guix build utils))
       #:configure-flags '("-DPREFER_LUA:BOOL=YES")
       #:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'set-lua-paths
           (lambda* (#:key inputs #:allow-other-keys)
             (let* ((lua-version "5.1")
                    (lua-cpath-spec
                     (lambda (prefix)
                       (let ((path (string-append prefix "/lib/lua/" lua-version)))
                         (string-append path "/?.so;" path "/?/?.so"))))
                    (lua-path-spec
                     (lambda (prefix)
                       (let ((path (string-append prefix "/share/lua/" lua-version)))
                         (string-append path "/?.lua;" path "/?/?.lua"))))
                    (lua-inputs (map (cute assoc-ref %build-inputs <>)
                                     '("lua"
                                       "lua-luv"
                                       "lua-lpeg"
                                       "lua-bitop"
                                       "lua-libmpack"))))
               (setenv "LUA_PATH"
                       (string-join (map lua-path-spec lua-inputs) ";"))
               (setenv "LUA_CPATH"
                       (string-join (map lua-cpath-spec lua-inputs) ";"))
               #t)))
         (add-after 'unpack 'prevent-embedding-gcc-store-path
           (lambda _
             ;; nvim remembers its build options, including the compiler with
             ;; its complete path.  This adds gcc to the closure of nvim, which
             ;; doubles its size.  We remove the refirence here.
             (substitute* "cmake/GetCompileFlags.cmake"
               (("\\$\\{CMAKE_C_COMPILER\\}") "/gnu/store/.../bin/gcc"))
             #t)))))
    (inputs
     `(("libuv" ,libuv)
       ("msgpack" ,msgpack)
       ("libtermkey" ,libtermkey)
       ("libvterm" ,libvterm)
       ("unibilium" ,unibilium)
       ("jemalloc" ,jemalloc)
       ("libiconv" ,libiconv)
       ("lua" ,lua-5.1)
       ("lua-luv" ,lua5.1-luv)
       ("lua-lpeg" ,lua5.1-lpeg)
       ("lua-bitop" ,lua5.1-bitop)
       ("lua-libmpack" ,lua5.1-libmpack)))
    (native-inputs
     `(("pkg-config" ,pkg-config)
       ("gettext" ,gettext-minimal)
       ("gperf" ,gperf)))
    (home-page "https://neovim.io")
    (synopsis "Fork of vim focused on extensibility and agility")
    (description "Neovim is a project that seeks to aggressively
refactor Vim in order to:

@itemize
@item Simplify maintenance and encourage contributions
@item Split the work between multiple developers
@item Enable advanced external UIs without modifications to the core
@item Improve extensibility with a new plugin architecture
@end itemize\n")
    ;; Neovim is licensed under the terms of the Apache 2.0 license,
    ;; except for parts that were contributed under the Vim license.
    (license (list license:asl2.0 license:vim))))

(define-public vifm
  (package
    (name "vifm")
    (version "0.11")
    (source
      (origin
        (method url-fetch)
        (uri (list
               (string-append "https://github.com/vifm/vifm/releases/download/v"
                              version "/vifm-" version ".tar.bz2")
               (string-append "https://sourceforge.net/projects/vifm/files/vifm/"
                              "vifm-" version ".tar.bz2")))
        (sha256
         (base32
          "0rqyd424y0g5b5basw2ybb60r9gar4f40d1xgzr3c2dsy4jpwvyh"))))
    (build-system gnu-build-system)
    (arguments
     '(#:configure-flags '("--disable-build-timestamp")
       #:phases
       (modify-phases %standard-phases
         (add-after 'patch-source-shebangs 'patch-test-shebangs
           (lambda _
             (substitute* (cons* "src/background.c"
                                 "src/cfg/config.c"
                                 (find-files "tests" "\\.c$"))
               (("/bin/sh") (which "sh"))
               (("/bin/bash") (which "bash")))
             ;; This test segfaults
             (substitute* "tests/Makefile"
               (("misc") ""))
             #t))
          (add-after 'install 'install-vim-plugin-files
            (lambda* (#:key outputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out"))
                     (vifm (string-append out "/share/vifm"))
                     (vimfiles (string-append out "/share/vim/vimfiles")))
                (copy-recursively (string-append vifm "/colors")
                                  (string-append vimfiles "/colors"))
                (copy-recursively (string-append vifm "/vim")
                                  vimfiles)
                (delete-file-recursively (string-append vifm "/colors"))
                (delete-file-recursively (string-append vifm "/vim")))
              #t)))))
    (native-inputs
     `(("groff" ,groff))) ; for the documentation
    (inputs
     `(("libx11" ,libx11)
       ("ncurses" ,ncurses)
       ("perl" ,perl)))
    (home-page "https://vifm.info/")
    (synopsis "Flexible vi-like file manager using ncurses")
    (description "Vifm is a file manager providing a @command{vi}-like usage
experience.  It has similar keybindings and modes (e.g. normal, command line,
visual).  The interface uses ncurses, thus vifm can be used in text-only
environments.  It supports a wide range of features, some of which are known
from the @command{vi}-editor:
@enumerate
@item utf8 support
@item user mappings (almost like in @code{vi})
@item ranges in command
@item line commands
@item user defined commands (with support for ranges)
@item registers
@item operation undoing/redoing
@item fuse file systems support
@item trash
@item multiple files renaming
@item support of filename modifiers
@item colorschemes support
@item file name color according to file type
@item path specific colorscheme customization
@item bookmarks
@item operation backgrounding
@item customizable file viewers
@item handy @code{less}-like preview mode
@item filtering out and searching for files using regular expressions
@item one or two panes view
@end enumerate
With the package comes a plugin to use vifm as a vim file selector.")
    (license license:gpl2+)))

(define-public python-pynvim
  (package
    (name "python-pynvim")
    (version "0.4.2")
    (source (origin
              (method url-fetch)
              (uri (pypi-uri "pynvim" version))
              (sha256
               (base32
                "13qgwkqbx012j5spis1aw8rb120rw0zphgjy1j58irax8r6j1ikb"))))
    (build-system python-build-system)
    (propagated-inputs
     `(("python-greenlet" ,python-greenlet)
       ("python-msgpack" ,python-msgpack)))
    (arguments
     `(#:tests? #f))
    (home-page "https://github.com/neovim/pynvim")
    (synopsis "Python client and plugin host for neovim")
    (description "Pynvim implements support for python plugins in neovim.  It
also works as a library for connecting to and scripting neovim processes
through its msgpack-rpc API.")
    (license license:asl2.0)))

(define-public vim-guix-vim
  (package
    (name "vim-guix-vim")
    (version "0.1.1")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                     (url "https://gitlab.com/Efraim/guix.vim")
                     (commit version)))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "10bfy0dgwizxr56b4272b7sqajpr6lnz332pzx055dis2zzjap8z"))))
    (build-system copy-build-system)
    (arguments
     '(#:install-plan
       '(("compiler" "share/vim/vimfiles/")
         ("doc" "share/vim/vimfiles/")
         ("indent" "share/vim/vimfiles/")
         ("ftdetect" "share/vim/vimfiles/")
         ("ftplugin" "share/vim/vimfiles/")
         ("syntax" "share/vim/vimfiles/"))))
    (home-page "https://gitlab.com/Efraim/guix.vim")
    (synopsis "Guix integration in Vim")
    (description "This package provides support for GNU Guix in Vim.")
    (license license:vim)))

(define-public vim-asyncrun
  (package
    (name "vim-asyncrun")
    (version "2.7.5")
    (source (origin
              (method git-fetch)
              (uri (git-reference
                     (url "https://github.com/skywind3000/asyncrun.vim")
                     (commit version)))
              (file-name (git-file-name name version))
              (sha256
               (base32
                "02fiqf4rcrxbcgvj02mpd78wkxsrnbi54aciwh9fv5mnz5ka249m"))))
    (build-system copy-build-system)
    (arguments
     '(#:install-plan
       '(("plugin" "share/vim/vimfiles/")
         ("doc/" "share/vim/vimfiles/doc" #:include ("asyncrun.txt")))))
    (home-page "https://github.com/skywind3000/asyncrun.vim")
    (synopsis "Run Async Shell Commands in Vim")
    (description "This plugin takes the advantage of new APIs in Vim 8 (and
NeoVim) to enable you to run shell commands in background and read output in the
quickfix window in realtime.")
    (license license:expat)))

(define-public vim-dispatch
  (package
    (name "vim-dispatch")
    (version "1.8")
    (source
      (origin
        (method git-fetch)
        (uri (git-reference
               (url "https://github.com/tpope/vim-dispatch")
               (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
         (base32
          "1m8b5mn2zqlphzs6xfwykwmghf6p0wabrhpjmh7vav35jgcxc4wl"))))
    (build-system copy-build-system)
    (arguments
     '(#:install-plan
       '(("autoload" "share/vim/vimfiles/")
         ("doc" "share/vim/vimfiles/")
         ("plugin" "share/vim/vimfiles/"))))
    (home-page "https://github.com/tpope/vim-dispatch")
    (synopsis "Asynchronous build and test dispatcher")
    (description "Leverage the power of Vim's compiler plugins without being
bound by synchronicity.  Kick off builds and test suites using one of several
asynchronous adapters (including tmux, screen, and a headless mode), and when
the job completes, errors will be loaded and parsed automatically.")
    (license license:vim)))

(define-public vim-eunuch
  (let ((commit "33e875b31c8b811a0a47908884a5e2339106bbe8")
        (revision "1"))
    (package
      (name "vim-eunuch")
      (version (git-version "1.2" revision commit))
      (source
        (origin
          (method git-fetch)
          (uri (git-reference
                 (url "https://github.com/tpope/vim-eunuch")
                 (commit commit)))
          (file-name (git-file-name name version))
          (sha256
           (base32
            "1xadb22kd40swmww0qxmmkcpcq6viy8l167pjck5q32hfngll5d3"))))
      (build-system copy-build-system)
      (arguments
       '(#:install-plan
         '(("doc" "share/vim/vimfiles/")
           ("plugin" "share/vim/vimfiles/"))))
      (home-page "https://github.com/tpope/vim-eunuch")
      (synopsis "Vim sugar for the UNIX shell commands")
      (description "Vim sugar for the UNIX shell commands that need it the most.
This package includes commands such as @code{SudoWrite} and @code{SudoEdit} and
help working on Vim buffers and the files they reference with one command.")
      (license license:vim))))
