* lisp/net/tramp-compat.el (format-spec): Do not require advice, cl-lib,
custom, password-cache, timer and ucs-normalize.
* lisp/net/tramp-gvfs.el: Do not require zeroconf. Declare
zeroconf-* functions.
(tramp-gvfs-enabled): Autoload `zeroconf-init'.
* lisp/net/tramp-sh.el: Do not require dired.
* lisp/net/tramp.el (tramp-get-debug-buffer): Do not require outline.
(tramp-file-name-for-operation): Extend docstring.
(tramp-parse-netrc): Do not require netrc. Autoload `netrc-parse'.
* lisp/files-x.el (cl-lib): Require when compiling.
(hack-connection-local-variables): Regard connection-local
variables as safe. (Bug#34943)
* lisp/shell.el (shell): Use `with-connection-local-variables' for
the whole code block. (Bug#34943)
* lisp/net/tramp-adb.el (tramp-connection-local-safe-shell-file-names):
Do not set values.
* lisp/net/tramp-integration.el
(tramp-connection-local-safe-shell-file-names): Remove.
(shell-file-name, shell-command-switch): Do not add safe-local-variable
property.
* lisp/net/tramp.el (tramp-handle-shell-command): Use proper
buffer name.
* test/lisp/net/tramp-tests.el (tramp-test34-explicit-shell-file-name):
Tag it :unstable.
* doc/emacs/custom.texi (Connection Variables): New node.
* doc/emacs/emacs.texi (Top): Add entry for Connection Variables.
* doc/emacs/misc.texi (Single Shell): Mention default value for
remote buffers.
* doc/lispref/variables.texi (Connection Local Variables):
Describe `with-connection-local-variables' instead of
`with-connection-local-profiles'.
* doc/misc/tramp.texi (Remote processes): Refer to Emacs manual.
Mention default connection-local settings for `shell-file-name'
and `shell-command-switch'.
* etc/NEWS: Mention connection-local variables changes.
* lisp/files-x.el (hack-connection-local-variables):
Push connection-local variables to `file-local-variables-alist'.
(connection-local-criteria-for-default-directory): New defsubst.
(with-connection-local-variables): Rename from
`with-connection-local-profiles'. Adapt implementation.
* lisp/files.el (hack-local-variables):
Call `hack-connection-local-variables'.
* lisp/shell.el (shell): Use `with-connection-local-variables'.
* lisp/subr.el (start-file-process-shell-command):
* lisp/progmodes/compile.el (compilation-start):
Use `with-connection-local-variables'. Do not set "/bin/sh" for
remote buffers, trust settings of `shell-file-name'. (Bug#24338),
(Bug#29723)
* lisp/net/ange-ftp.el (ange-ftp-compress, ange-ftp-uncompress):
Use `shell-command-switch'.
* lisp/net/tramp-adb.el (tramp-adb-connection-local-default-profile):
New defvar. Add it to connection-local profiles after loading "shell".
* lisp/net/tramp-integration.el (tramp-compat): Require tramp-compat.
(tramp-compat-exec-path): Do not declare anymore.
(tramp-connection-local-safe-shell-file-names): New defvar.
(tramp-connection-local-default-profile): New defconst. Activate
it after loading "shell".
(shell-file-name, shell-command-switch): Add safe-local-variable
property.
* lisp/net/tramp-sh.el (tramp-display-escape-sequence-regexp):
Add tramp-autoload cookie.
* test/lisp/files-x-tests.el (remote-shell-file-name):
Add safe-local-variable property to remote-* variables.
(tramp-connection-local-default-profile): Declare.
(files-x-test-with-connection-local-variables):
Rename from `files-x-test-with-connection-local-profiles'. Adapt
implementation.
* test/lisp/net/tramp-tests.el
(tramp-test34-connection-local-variables): New test.
(tramp-test34-explicit-shell-file-name): Run it also for tramp-adb.
Bind connection-local-{profile,criteria}-alist. Use tramp-adb
specific `shell-file-name'. Add safe-local-variable property to
`explicit-shell-file-name' and `explicit-sh-args'.
* lisp/net/tramp-archive.el (tramp-archive-cleanup-hash):
Remove autoload cookie.
(tramp-cleanup-all-connections-hook): Add `tramp-archive-cleanup-hash'.
* lisp/net/tramp-cmds.el (tramp-cleanup-connection-hook)
(tramp-cleanup-all-connections-hook): New hook variables.
(tramp-cleanup-connection): Set `tramp-current-connection' always
to nil.
(tramp-cleanup-connection): Do not call `tramp-recentf-cleanup'.
Run ´tramp-cleanup-connection-hook`.
(tramp-cleanup-all-connections): Do not call
`tramp-archive-cleanup-hash' and ´tramp-recentf-cleanup'. Run
`tramp-cleanup-all-connections-hook'.
* lisp/net/tramp-ftp.el (top): Simply call `tramp-disable-ange-ftp'.
* lisp/net/tramp-integration.el (tramp-recentf-cleanup-all): New defun.
(top): Adapt `tramp-integration-unload-hook',
`tramp-cleanup-connection-hook' and
`tramp-cleanup-all-connections-hook'.
