This will let modules define their own, regular autoloads, independent
of the core Eshell machinery for defining modules.

* lisp/eshell/em-alias.el (em-alias):
* lisp/eshell/em-banner.el (em-banner):
* lisp/eshell/em-basic.el (em-basic):
* lisp/eshell/em-cmpl.el (em-cmpl):
* lisp/eshell/em-dirs.el (em-dirs):
* lisp/eshell/em-elecslash.el (em-elecslash):
* lisp/eshell/em-extpipe.el:
* lisp/eshell/em-glob.el (em-glob):
* lisp/eshell/em-hist.el (em-hist):
* lisp/eshell/em-ls.el (em-ls):
* lisp/eshell/em-pred.el (em-pred):
* lisp/eshell/em-prompt.el (em-prompt):
* lisp/eshell/em-rebind.el (em-rebind):
* lisp/eshell/em-script.el (em-script):
* lisp/eshell/em-smart.el (em-smart):
* lisp/eshell/em-term.el (em-term):
* lisp/eshell/em-tramp.el (em-tramp):
* lisp/eshell/em-unix.el (em-unix):
* lisp/eshell/em-xtra.el (em-xtra): Use 'esh-module-autoload'.

* lisp/eshell/esh-module.el ("esh-module-loaddefs"): Load this instead
of "esh-groups".

* .gitignore: Change esh-groups.el to esh-module-loaddefs.el

This is particularly important when the inner command to execute is an
alias.  Aliases throw 'eshell-replace-command' too, so we want to do
this in two phases: first, replace the "sudo"/"doas" with a
let-binding of 'default-directory', and then later, let the alias code
do its own replacement (bug#68074).

* lisp/eshell/em-tramp.el (eshell/sudo, eshell/doas): Use
'eshell-replace-command' to wrap the inner command.
* test/lisp/eshell/em-tramp-tests.el (mock-eshell-named-command):
Remove.
(em-tramp-test/sudo-basic, em-tramp-test/sudo-user)
(em-tramp-test/doas-basic, em-tramp-test/doas-user): Catch
'eshell-replace-command'.

dc4e6b13296 ; Update copyright years in more files
64b37776318 ; Run set-copyright from admin.el
8e1c56ae467 ; Add 2024 to copyright years

# Conflicts:
#	doc/misc/modus-themes.org
#	doc/misc/texinfo.tex
#	etc/NEWS
#	etc/refcards/ru-refcard.tex
#	etc/themes/modus-operandi-theme.el
#	etc/themes/modus-themes.el
#	etc/themes/modus-vivendi-theme.el
#	lib/alloca.in.h
#	lib/binary-io.h
#	lib/c-ctype.h
#	lib/c-strcasecmp.c
#	lib/c-strncasecmp.c
#	lib/careadlinkat.c
#	lib/cloexec.c
#	lib/close-stream.c
#	lib/diffseq.h
#	lib/dup2.c
#	lib/filemode.h
#	lib/fpending.c
#	lib/fpending.h
#	lib/fsusage.c
#	lib/getgroups.c
#	lib/getloadavg.c
#	lib/gettext.h
#	lib/gettime.c
#	lib/gettimeofday.c
#	lib/group-member.c
#	lib/malloc.c
#	lib/md5-stream.c
#	lib/md5.c
#	lib/md5.h
#	lib/memmem.c
#	lib/memrchr.c
#	lib/nanosleep.c
#	lib/save-cwd.h
#	lib/sha1.c
#	lib/sig2str.c
#	lib/stdlib.in.h
#	lib/strtoimax.c
#	lib/strtol.c
#	lib/strtoll.c
#	lib/time_r.c
#	lib/xalloc-oversized.h
#	lisp/auth-source-pass.el
#	lisp/emacs-lisp/lisp-mnt.el
#	lisp/emacs-lisp/timer.el
#	lisp/info-look.el
#	lisp/jit-lock.el
#	lisp/loadhist.el
#	lisp/mail/rmail.el
#	lisp/net/ntlm.el
#	lisp/net/webjump.el
#	lisp/progmodes/asm-mode.el
#	lisp/progmodes/project.el
#	lisp/progmodes/sh-script.el
#	lisp/textmodes/flyspell.el
#	lisp/textmodes/reftex-toc.el
#	lisp/textmodes/reftex.el
#	lisp/textmodes/tex-mode.el
#	lisp/url/url-gw.el
#	m4/alloca.m4
#	m4/clock_time.m4
#	m4/d-type.m4
#	m4/dirent_h.m4
#	m4/dup2.m4
#	m4/euidaccess.m4
#	m4/fchmodat.m4
#	m4/filemode.m4
#	m4/fsusage.m4
#	m4/getgroups.m4
#	m4/getloadavg.m4
#	m4/getrandom.m4
#	m4/gettime.m4
#	m4/gettimeofday.m4
#	m4/gnulib-common.m4
#	m4/group-member.m4
#	m4/inttypes.m4
#	m4/malloc.m4
#	m4/manywarnings.m4
#	m4/mempcpy.m4
#	m4/memrchr.m4
#	m4/mkostemp.m4
#	m4/mktime.m4
#	m4/nproc.m4
#	m4/nstrftime.m4
#	m4/pathmax.m4
#	m4/pipe2.m4
#	m4/pselect.m4
#	m4/pthread_sigmask.m4
#	m4/readlink.m4
#	m4/realloc.m4
#	m4/sig2str.m4
#	m4/ssize_t.m4
#	m4/stat-time.m4
#	m4/stddef_h.m4
#	m4/stdint.m4
#	m4/stdio_h.m4
#	m4/stdlib_h.m4
#	m4/stpcpy.m4
#	m4/strnlen.m4
#	m4/strtoimax.m4
#	m4/strtoll.m4
#	m4/time_h.m4
#	m4/timegm.m4
#	m4/timer_time.m4
#	m4/timespec.m4
#	m4/unistd_h.m4
#	m4/warnings.m4
#	nt/configure.bat
#	nt/preprep.c
#	test/lisp/register-tests.el

This isn't necessary and just makes unloading Eshell harder.

* lisp/eshell/em-banner.el:
* lisp/eshell/em-basic.el:
* lisp/eshell/em-cmpl.el:
* lisp/eshell/em-glob.el:
* lisp/eshell/em-prompt.el:
* lisp/eshell/em-rebind.el:
* lisp/eshell/em-smart.el:
* lisp/eshell/em-term.el:
* lisp/eshell/em-tramp.el:
* lisp/eshell/em-xtra.el:
Stop requiring 'eshell', and instead require specific subcomponents.

* lisp/eshell/em-hist.el: Stop requiring 'eshell' and 'em-pred'
(extension modules shouldn't require each other so they can be
independent).
(eshell-hist-parse-modifier): Ensure this can only be called when
'em-pred' is in use, and declare the relevant function.

* lisp/eshell/eshell.el (eshell-non-interactive-p): Move from here...
* lisp/eshell/esh-mode.el (eshell-non-interactive-p): ... to here.

  * lisp/eshell/em-tramp.el (eshell/doas): new function.
  (eshell--method-wrap-directory): new function.
  (eshell/sudo): accept '-s'/'--shell' for interactive use.
  * test/lisp/eshell/em-tramp-tests.el
  (em-tramp-test/sudo-shell) (em-tramp-test/sudo-user-shell)
  (em-tramp-test/doas-basic) (em-tramp-test/doas-user)
  (em-tramp-test/doas-shell) (em-tramp-test/doas-user-shell): new
  tests.
  * etc/NEWS: mention new 'doas' eshell command.
  * doc/misc/eshell.texi: add 'doas' command documentation.

* lisp/eshell/em-tramp.el (eshell/su, eshell/sudo):
Use `tramp-default-host' instead of "localhost".