[PATCH v4 5/5] notmuch-emacs-mua: do not create a frame by default with --client
Tomi Ollila
tomi.ollila at iki.fi
Fri Aug 28 12:18:17 PDT 2015
On Fri, Aug 28 2015, Jani Nikula <jani at nikula.org> wrote:
> On Wed, 26 Aug 2015, Tomi Ollila <tomi.ollila at iki.fi> wrote:
>> On Sat, Aug 15 2015, Jani Nikula <jani at nikula.org> wrote:
>>
>>> Make the default behaviour for --client the same as emacsclient
>>> default: do not create a new frame. Add a new option --create-frame,
>>> passing the same option to emacsclient to create a frame.
>>>
>>> ---
>>>
>>> v2: fix killing frame with --create-frame
>>>
>>> v3: fix --create-frame w/o --client parameter check
>>>
>>> v4: fix kill terminal logic, document behaviour with daemon mode
>>> ---
>>> doc/man1/notmuch-emacs-mua.rst | 6 ++++++
>>> notmuch-emacs-mua | 14 ++++++++++----
>>> 2 files changed, 16 insertions(+), 4 deletions(-)
>>>
>>> diff --git a/doc/man1/notmuch-emacs-mua.rst b/doc/man1/notmuch-emacs-mua.rst
>>> index 89a2fead17b1..c3689eb82c8a 100644
>>> --- a/doc/man1/notmuch-emacs-mua.rst
>>> +++ b/doc/man1/notmuch-emacs-mua.rst
>>> @@ -45,6 +45,12 @@ Supported options for **notmuch-emacs-mua** include
>>> Automatically start Emacs in daemon mode, if the Emacs server
>>> is not running. Applicable with ``--client``.
>>>
>>> + ``--create-frame``
>>> + Create a new frame instead of trying to use the current Emacs
>>> + frame. Applicable with ``--client``. This will be required
>>> + when Emacs is running (or automatically started with
>>> + ``--auto-daemon``) in daemon mode.
>>> +
>>> ``--print``
>>> Output the resulting elisp to stdout instead of evaluating it.
>>>
>>> diff --git a/notmuch-emacs-mua b/notmuch-emacs-mua
>>> index ac03a4a60d56..b51d8d0e2c5b 100755
>>> --- a/notmuch-emacs-mua
>>> +++ b/notmuch-emacs-mua
>>> @@ -37,11 +37,10 @@ PRINT_ONLY=
>>> NO_WINDOW=
>>> USE_EMACSCLIENT=
>>> AUTO_DAEMON=
>>> -CREATE_FRAME="-c"
>>> +CREATE_FRAME=
>>>
>>> # The crux of it all: construct an elisp progn and eval it.
>>> ELISP="(prog1 'done (require 'notmuch) (notmuch-mua-new-mail)"
>>> -ELISP="${ELISP} (setq message-exit-actions (list #'save-buffers-kill-terminal))"
>>>
>>> # Short options compatible with mutt(1).
>>> while getopts :s:c:b:i:h opt; do
>>> @@ -65,7 +64,7 @@ while getopts :s:c:b:i:h opt; do
>>> opt=${opt%%=*}
>>> ;;
>>> # Long options without arguments.
>>> - --help|--print|--no-window-system|--client|--auto-daemon)
>>> + --help|--print|--no-window-system|--client|--auto-daemon|--create-frame)
>>> ;;
>>> *)
>>> echo "$0: unknown long option ${opt}, or argument mismatch." >&2
>>> @@ -103,7 +102,6 @@ while getopts :s:c:b:i:h opt; do
>>> ;;
>>> --no-window-system)
>>> NO_WINDOW="-nw"
>>> - CREATE_FRAME=
>>> ;;
>>> --client)
>>> USE_EMACSCLIENT="yes"
>>> @@ -111,6 +109,9 @@ while getopts :s:c:b:i:h opt; do
>>> --auto-daemon)
>>> AUTO_DAEMON="--alternate-editor="
>>> ;;
>>> + --create-frame)
>>> + CREATE_FRAME="-c"
>>> + ;;
>>> *)
>>> # We should never end up here.
>>> echo "$0: internal error (option ${opt})." >&2
>>
>> This looks pretty good now; I player quite a bit with --client,
>> --create-frame and --auto-daemon
>> (with and without setting EMACSCLIENT='echo emacsclient')
>>
>> Based on that I think this check should be added here (after option
>> parsing):
>>
>> if [ -n "$AUTO_DAEMON" -a -z "$CREATE_FRAME" ]; then
>> echo "$0: --auto-daemon is only applicable with --create-frame." >&2
>> exit 1
>> fi
>>
>> without this one may execute ./notmuch-emacs-mua --client --auto-daemon
>> which yields starting emacs in daemon mode (in this example it is expected
>> emacs is not running; otherwise --auto-daemon has no use in this example)
>> -- but no ui to that newly-running emacs is provided. Similar behaviour
>> can be observed by the following
>
> This problem is present with the current code already, right now. I
> don't see the need to fix everything in my series.
Yes, the problem was already present in patch 4/5 (and probably earlier as
you mentioned that there was problem already) -- I just did not want
to pick that also in this discussion... ;/
>> $ emacsclient --eval '(kill emacs) ;; but beware! '
>> $ emacsclient --alternate-editor= --eval '(find-file "/etc/passwd")'
>>
>> (side note: using this --alternate-editor= is pretty nifty way to get it done)
>>
>> emacs --daemon is executed which loaded /etc/passwd but w/o ui
>>
>> Note the difference in:
>>
>> emacsclient --alternate-editor= /etc/passwd
>>
>> now emacs --daemon is executed *and* ui where /etc/passwd is available is
>> provided!
>>
>> otoh,
>> emacsclient --alternate-editor= -c [-nw] --eval '(find-file "/etc/passwd")'
>>
>> works fine, albeit a bit different than the one where /etc/passwd was given
>> as a simple filename argument.
>>
>> comparative to ./notmuch-emacs-mua --client --create-frame --auto-daemon
>>
>>> @@ -128,6 +129,11 @@ for arg; do
>>> ELISP="${ELISP} (message-goto-to) (insert \"${arg}, \")"
>>> done
>>>
>>> +# Kill the terminal/frame if we're creating one.
>>> +if [ -z "$USE_EMACSCLIENT" -o -n "$CREATE_FRAME" -o -n "$NO_WINDOW" ]; then
>>> + ELISP="${ELISP} (setq message-exit-actions (list #'save-buffers-kill-terminal))"
>>> +fi
>>
>> I am not very happy that message-exit-actions was added to $ELISP when
>> not using emacsclient; when emacs is started its sole (initial) purpose is
>> to serve mail sending (and not lending a frame in some other emacs) -- in
>> this case it would be nice to be able to retrieve the sent mail buffer.
>
> And I am not very happy with being expected to modify these patches ad
> infinitum while trying to get back the *one* use case I wrote this
> script for in the first place, and that got broken somewhere down the
> line.
I can agree that these patches could be applied as is and I can do the
followup patch that changes the things later ... but I'd like to get these
changes I presented discussed and agreed (whatever the agreement is) before
doing these so that the result will be good and safe for all potential
users...
>
> Sincerely,
> Jani.
>
ystävällisin terveisin :D,
Tomi
>
>>
>> perhaps the above could be changed to just
>>
>> if [ -n "$CREATE_FRAME" ]; then
>> ELISP="${ELISP} (setq message-exit-actions (list #'save-buffers-kill-terminal))"
>> fi
>>
>> another option is --yet-another-option ;/
>>
>> No other issues (relevant to this series).
>>
>> Tomi
>>
>>
>>> +
>>> # End progn.
>>> ELISP="${ELISP})"
>>>
>>> --
>>> 2.1.4
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