bug#52349: 29.0.50; vc-git and diff-mode: stage hunks

[Manuel Uberti]

I don't know if I am missing something, but I don't think staging specific hunks 
from vc-git-mode or diff-mode is possible at the moment.

Is adding such a capability to one (or both) of these modes worth
considering? I know Magit does it, and I remember something similar in a 
git-gutter package. It's probably something diff-hl does as well by now (I have 
not checked).

I feel like it'd be a nice improvement to VC, what do you think?


Thank you

In GNU Emacs 29.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.18, cairo 
version 1.16.0)
 of 2021-12-07 built on hathaway
Repository revision: 9a1e87ba4486df19259abf3564a0281d8be25e64
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12009000
System Description: Ubuntu 20.04 LTS

Configured using:
 'configure --with-harfbuzz --with-native-compilation'

Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG
JSON LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES
NATIVE_COMP NOTIFY INOTIFY PDUMPER PNG RSVG SECCOMP SOUND THREADS TIFF
TOOLKIT_SCROLL_BARS X11 XDBE XIM XPM GTK3 ZLIB

Important settings:
  value of $LC_MONETARY: it_IT.UTF-8
  value of $LC_NUMERIC: it_IT.UTF-8
  value of $LC_TIME: it_IT.UTF-8
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: @im=ibus
  locale-coding-system: utf-8-unix

Major mode: VC dir

Minor modes in effect:
  vc-parent-buffer: .emacs.d/*vc-dir*
  shell-dirtrack-mode: t
  electric-pair-mode: t
  vc-dir-git-mode: t
  savehist-mode: t
  global-so-long-mode: t
  global-subword-mode: t
  subword-mode: t
  windmove-mode: t
  winner-mode: t
  global-company-mode: t
  company-mode: t
  envrc-global-mode: t
  envrc-mode: t
  fido-vertical-mode: t
  icomplete-vertical-mode: t
  icomplete-mode: t
  fido-mode: t
  delete-selection-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  show-paren-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  window-divider-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  buffer-read-only: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Load-path shadows:
/home/manuel/.emacs.d/elpa/transient-0.3.7.0.20211107.234631/transient hides 
/usr/local/share/emacs/29.0.50/lisp/transient

Features:
(shadow sort mail-extr help-fns radix-tree emacsbug sendmail tramp-cmds
mm-archive message yank-media rfc822 mml mml-sec epa gnus-util rmail
rmail-loaddefs mailabbrev gmm-utils mailheader mm-decode mm-bodies
mm-encode mail-utils mule-util gnutls url-cache epg rfc6068 epg-config
hl-line finder-inf misearch multi-isearch pkg-info url-http url-auth
url-gw find-func epl network-stream puny nsm rmc cider tramp-sh
cider-debug cider-browse-ns cider-repl-history pulse derived sh-script
smie executable find-dired cider-mode cider-find cider-inspector
cider-completion cider-profile cider-eval cider-repl cider-resolve
cider-eldoc cider-test cider-stacktrace cider-doc advice
cider-browse-spec cider-clojuredocs cider-overlays cider-jar arc-mode
archive-mode cider-client cider-common cider-connection cider-util color
cider-popup sesman-browser nrepl-client tramp tramp-loaddefs trampver
tramp-integration files-x tramp-compat shell pcomplete parse-time
iso8601 ls-lisp format-spec queue nrepl-dict cider-compat spinner
parseedn parseclj-parser parseclj-lex parseclj-alist flymake-kondor
sesman clojure-mode align imenu smerge-mode diff vc-dir ewoc time-date
noutline outline checkdoc lisp-mnt mail-parse rfc2231 rfc2047 rfc2045
mm-util ietf-drums mail-prsvr dired-x dired dired-loaddefs elec-pair
flymake-proc flymake compile text-property-search comint flyspell ispell
goto-addr thingatpt pp vc-git diff-mode easy-mmode vc vc-dispatcher
cursor-sensor server modus-operandi-theme modus-themes delight comp
comp-cstr warnings cl-extra help-mode savehist so-long cap-words
superword subword windmove winner company-oddmuse company-keywords
company-etags etags fileloop generator xref project ring company-gtags
company-dabbrev-code company-dabbrev company-files company-clang
company-capf company-cmake company-semantic company-template
company-bbdb company pcase envrc inheritenv ansi-color icomplete rx
delsel info tex-site package browse-url url url-proxy url-privacy
url-expand url-methods url-history url-cookie url-domsuf url-util
mailcap url-handlers url-parse auth-source cl-seq eieio eieio-core
cl-macs eieio-loaddefs password-cache json map url-vars seq gv subr-x
byte-opt bytecomp byte-compile cconv cl-loaddefs cl-lib iso-transl
tooltip eldoc paren electric uniquify ediff-hook vc-hooks
lisp-float-type elisp-mode mwheel term/x-win x-win term/common-win x-dnd
tool-bar dnd fontset image regexp-opt fringe tabulated-list replace
newcomment text-mode lisp-mode prog-mode register page tab-bar menu-bar
rfn-eshadow isearch easymenu timer select scroll-bar mouse jit-lock
font-lock syntax font-core term/tty-colors frame minibuffer cl-generic
cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao
korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech
european ethiopic indian cyrillic chinese composite emoji-zwj charscript
charprop case-table epa-hook jka-cmpr-hook help simple abbrev obarray
cl-preloaded nadvice button loaddefs faces cus-face macroexp files
window text-properties overlay sha1 md5 base64 format env code-pages
mule custom widget keymap hashtable-print-readable backquote threads
dbusbind inotify lcms2 dynamic-setting system-font-setting
font-render-setting cairo move-toolbar gtk x-toolkit x multi-tty
make-network-process native-compile emacs)

Memory information:
((conses 16 539597 325220)
 (symbols 48 27815 1)
 (strings 32 136565 77490)
 (string-bytes 1 5745034)
 (vectors 16 47250)
 (vector-slots 8 1113451 95518)
 (floats 8 236 658)
 (intervals 56 2079 129)
 (buffers 992 30))

--
Manuel Uberti
www.manueluberti.eu