* Re: Using emacsclient -t as $EDITOR from within Emacs [not found] <mailman.1318.1378327378.10748.help-gnu-emacs@gnu.org> @ 2013-09-05 23:36 ` Felix Dietrich 2013-09-06 6:02 ` Nikolai Weibull 0 siblings, 1 reply; 13+ messages in thread From: Felix Dietrich @ 2013-09-05 23:36 UTC (permalink / raw) To: help-gnu-emacs Nikolai Weibull <now@disu.se> writes: > Invoking emacsclient -t from shell-command gives me > > emacsclient: could not get terminal name > > It seems that ttyname (fileno (stdio)) fails, which doesn’t seem > unreasonable, I suppose, but I was wondering how I should get around > this. I want to be able to execute commands that invoke $EDITOR, > which I’ve set to a shell script that invokes emacsclient -t, from > within Emacs (for example, from Dired) that’s running as a server and > so far I’m only either failing with errors or locking up my terminal. If you can leave off the parameter '-t' emacsclient will simply open the file on the emacs-server. You can than edit the file in you current emacs window in you text-shell, or you could if your terminal wouldn't lock. Adding an ampersand '&' to the COMMAND string passed to `shell-command' will run it asynchronously so that you will be able to continue editing while your command is running in the background, which it will, because it is you trying to interactively edit a file. When working with a file opened by emacsclient type 'C-x #' in the file's buffer to indicate to emacs that you are done editing. Emacs will than ask you whether you want to save the changes and notify the waiting emacsclient that you are done; emacsclient will now exit. Alternatively use '--no-wait' to make emacsclient exit immediately after opening the file on the server. -- Felix Dietrich ^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: Using emacsclient -t as $EDITOR from within Emacs 2013-09-05 23:36 ` Using emacsclient -t as $EDITOR from within Emacs Felix Dietrich @ 2013-09-06 6:02 ` Nikolai Weibull 2013-09-06 7:10 ` Suvayu Ali 0 siblings, 1 reply; 13+ messages in thread From: Nikolai Weibull @ 2013-09-06 6:02 UTC (permalink / raw) To: Felix Dietrich; +Cc: Emacs Users On Fri, Sep 6, 2013 at 1:36 AM, Felix Dietrich <felix.dietrich@sperrhaken.name> wrote: > Nikolai Weibull <now@disu.se> writes: >> Invoking emacsclient -t from shell-command gives me >> >> emacsclient: could not get terminal name >> >> It seems that ttyname (fileno (stdio)) fails, which doesn’t seem >> unreasonable, I suppose, but I was wondering how I should get around >> this. I want to be able to execute commands that invoke $EDITOR, >> which I’ve set to a shell script that invokes emacsclient -t, from >> within Emacs (for example, from Dired) that’s running as a server and >> so far I’m only either failing with errors or locking up my terminal. > > If you can leave off the parameter '-t' emacsclient will simply open the > file on the emacs-server. You can than edit the file in you current > emacs window in you text-shell, or you could if your terminal wouldn't > lock. Adding an ampersand '&' to the COMMAND string passed to > `shell-command' will run it asynchronously so that you will be able to > continue editing while your command is running in the background, which > it will, because it is you trying to interactively edit a file. Precisely. I figured this out yesterday evening. I had figured that the -t would allow for a new frame to be created in the daemon and displayed “over” the current one on the same terminal, but leaving off -t and running asynchronously seems to be the only way. Thanks! ^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: Using emacsclient -t as $EDITOR from within Emacs 2013-09-06 6:02 ` Nikolai Weibull @ 2013-09-06 7:10 ` Suvayu Ali 2013-09-06 7:59 ` Yuri Khan 0 siblings, 1 reply; 13+ messages in thread From: Suvayu Ali @ 2013-09-06 7:10 UTC (permalink / raw) To: help-gnu-emacs Hi Nikolai, On Fri, Sep 06, 2013 at 08:02:47AM +0200, Nikolai Weibull wrote: > > Precisely. I figured this out yesterday evening. I had figured that > the -t would allow for a new frame to be created in the daemon and > displayed “over” the current one on the same terminal, but leaving off > -t and running asynchronously seems to be the only way. I'm very curious, what does this offer you over simple C-x C-f. The way I see it, emacsclient is useful to have access to single Emacs instance whenever you want to edit something, so you can connect to the instance from anywhere. But if you are already in an emacs frame, how does this add anything? -- Suvayu Open source is the future. It sets us free. ^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: Using emacsclient -t as $EDITOR from within Emacs 2013-09-06 7:10 ` Suvayu Ali @ 2013-09-06 7:59 ` Yuri Khan 2013-09-06 8:57 ` Suvayu Ali 0 siblings, 1 reply; 13+ messages in thread From: Yuri Khan @ 2013-09-06 7:59 UTC (permalink / raw) To: Suvayu Ali; +Cc: help-gnu-emacs@gnu.org On Fri, Sep 6, 2013 at 2:10 PM, Suvayu Ali <fatkasuvayu+linux@gmail.com> wrote: > Hi Nikolai, > I'm very curious, what does this offer you over simple C-x C-f. The way > I see it, emacsclient is useful to have access to single Emacs instance > whenever you want to edit something, so you can connect to the instance > from anywhere. But if you are already in an emacs frame, how does this > add anything? Many external programs, most notably version control systems such as Subversion and Git, like to call an external editor when they need some intermediate text that cannot be reasonably expected to be passed via the command line or via a pre-authored file. E.g. when you say “git commit”, it asks you for a commit message by opening an external editor with some temporary file. It then expects that you will compose your message, save it into the same file, and exit the editor. After that, it proceeds to store your modifications in a commit along with the message you wrote. The external editor used in Git must have two desirable properties: (1) it must be convenient for you to use, and (2) it must start up quickly. If (1) leads you to use Emacs, then you’re forced to think about the issue (2): a conveniently configured Emacs is often slow to load. The usual list response to issues of slow startup is “use server and set emacsclient as your editor”. But if you run Emacs server on a terminal, then shell in that Emacs, then “git commit” from that shell, it calls emacsclient which tries to create a frame but cannot determine the terminal type (because it actually runs in emacs shell which in fact lacks any terminal capabilities), which leads to frustration due to interrupted flow (you are either forced to use a different editor, or to pass a short commit message via the command line, or to first compose a message, then pass the message file to “git commit”, then delete that file). It might be possible using term instead of shell in Emacs, but probably weird (Emacs running on a terminal emulated by a window in an Emacs running on a terminal). ^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: Using emacsclient -t as $EDITOR from within Emacs 2013-09-06 7:59 ` Yuri Khan @ 2013-09-06 8:57 ` Suvayu Ali 2013-09-06 9:08 ` Nikolai Weibull 0 siblings, 1 reply; 13+ messages in thread From: Suvayu Ali @ 2013-09-06 8:57 UTC (permalink / raw) To: Yuri Khan; +Cc: help-gnu-emacs@gnu.org On Fri, Sep 06, 2013 at 02:59:21PM +0700, Yuri Khan wrote: > On Fri, Sep 6, 2013 at 2:10 PM, Suvayu Ali <fatkasuvayu+linux@gmail.com> wrote: > > Hi Nikolai, > > > I'm very curious, what does this offer you over simple C-x C-f. The way > > I see it, emacsclient is useful to have access to single Emacs instance > > whenever you want to edit something, so you can connect to the instance > > from anywhere. But if you are already in an emacs frame, how does this > > add anything? > > Many external programs, most notably version control systems such as > Subversion and Git, like to call an external editor when they need > some intermediate text that cannot be reasonably expected to be passed > via the command line or via a pre-authored file. Yes I'm aware of that. That is why I myself use emacsclient most of the time. The OP however wants to call emacsclient from an emacs frame as an asynchronous command. I fail to see any usecase for that. If I want to edit something from an emacs frame, I would just open it. That said, I think one use case for emacsclient from an emacs frame would be in eshell or some such shell mode, just call `emacsclient <file>' and you can edit the file. However that is still not what the OP was asking for; hence my question. Hopefully I was clearer this time around. Cheers, -- Suvayu Open source is the future. It sets us free. ^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: Using emacsclient -t as $EDITOR from within Emacs 2013-09-06 8:57 ` Suvayu Ali @ 2013-09-06 9:08 ` Nikolai Weibull 2013-09-06 9:40 ` Suvayu Ali 0 siblings, 1 reply; 13+ messages in thread From: Nikolai Weibull @ 2013-09-06 9:08 UTC (permalink / raw) To: Suvayu Ali; +Cc: help-gnu-emacs@gnu.org, Yuri Khan On Fri, Sep 6, 2013 at 10:57 AM, Suvayu Ali <fatkasuvayu+linux@gmail.com> wrote: > On Fri, Sep 06, 2013 at 02:59:21PM +0700, Yuri Khan wrote: >> On Fri, Sep 6, 2013 at 2:10 PM, Suvayu Ali <fatkasuvayu+linux@gmail.com> wrote: >> > I'm very curious, what does this offer you over simple C-x C-f. The way >> > I see it, emacsclient is useful to have access to single Emacs instance >> > whenever you want to edit something, so you can connect to the instance >> > from anywhere. But if you are already in an emacs frame, how does this >> > add anything? >> Many external programs, most notably version control systems such as >> Subversion and Git, like to call an external editor when they need >> some intermediate text that cannot be reasonably expected to be passed >> via the command line or via a pre-authored file. > Yes I'm aware of that. That is why I myself use emacsclient most of the > time. The OP however wants to call emacsclient from an emacs frame as > an asynchronous command. I fail to see any usecase for that. If I want > to edit something from an emacs frame, I would just open it. That wasn’t what I was asking for. I led with that case, as that’s what it boiled down to, or so I thought, but I did explain that “I want to be able to execute commands that invoke $EDITOR, which I’ve set to a shell script that invokes emacsclient -t, from within Emacs (for example, from Dired) that’s running as a server”. ^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: Using emacsclient -t as $EDITOR from within Emacs 2013-09-06 9:08 ` Nikolai Weibull @ 2013-09-06 9:40 ` Suvayu Ali 2013-09-06 9:46 ` Nikolai Weibull 0 siblings, 1 reply; 13+ messages in thread From: Suvayu Ali @ 2013-09-06 9:40 UTC (permalink / raw) To: Nikolai Weibull; +Cc: help-gnu-emacs@gnu.org, Yuri Khan Hi Nikolai, On Fri, Sep 06, 2013 at 11:08:20AM +0200, Nikolai Weibull wrote: > On Fri, Sep 6, 2013 at 10:57 AM, Suvayu Ali <fatkasuvayu+linux@gmail.com> wrote: > > On Fri, Sep 06, 2013 at 02:59:21PM +0700, Yuri Khan wrote: > >> On Fri, Sep 6, 2013 at 2:10 PM, Suvayu Ali <fatkasuvayu+linux@gmail.com> wrote: > > >> > I'm very curious, what does this offer you over simple C-x C-f. The way > >> > I see it, emacsclient is useful to have access to single Emacs instance > >> > whenever you want to edit something, so you can connect to the instance > >> > from anywhere. But if you are already in an emacs frame, how does this > >> > add anything? > > >> Many external programs, most notably version control systems such as > >> Subversion and Git, like to call an external editor when they need > >> some intermediate text that cannot be reasonably expected to be passed > >> via the command line or via a pre-authored file. > > > Yes I'm aware of that. That is why I myself use emacsclient most of the > > time. The OP however wants to call emacsclient from an emacs frame as > > an asynchronous command. I fail to see any usecase for that. If I want > > to edit something from an emacs frame, I would just open it. > > That wasn’t what I was asking for. I led with that case, as that’s > what it boiled down to, or so I thought, but I did explain that “I > want to be able to execute commands that invoke $EDITOR, which I’ve > set to a shell script that invokes emacsclient -t, from > within Emacs (for example, from Dired) that’s running as a server”. Almost all the cases I can think of where executing shell commands may call $EDITOR, I can also think of very nice emacs libraries that provide very mature integration. A few examples: - emails: Gnus, notmuch, vm, message-mode for simple composing, etc, - using version control: vc-*, magit, etc, - sudoedit/visudo: tramp The only one I can think of without a mode like that is when I call $EDITOR from my pager (less). But of course running a pager from Emacs does not make sense. From the above examples, I can't imagine I would call any of those from dired. So I'm still a bit confused about the use case. Could you please give an example of the command you are using? Sorry if I'm being a bit dense, I'm just very curious and would like to know. Thanks, -- Suvayu Open source is the future. It sets us free. ^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: Using emacsclient -t as $EDITOR from within Emacs 2013-09-06 9:40 ` Suvayu Ali @ 2013-09-06 9:46 ` Nikolai Weibull 2013-09-06 10:05 ` Suvayu Ali 0 siblings, 1 reply; 13+ messages in thread From: Nikolai Weibull @ 2013-09-06 9:46 UTC (permalink / raw) To: Suvayu Ali; +Cc: help-gnu-emacs@gnu.org, Yuri Khan On Fri, Sep 6, 2013 at 11:40 AM, Suvayu Ali <fatkasuvayu+linux@gmail.com> wrote: > Could you please give an example of the command you are using? https://github.com/now/dot-home/blob/master/bin/mfedit.in ^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: Using emacsclient -t as $EDITOR from within Emacs 2013-09-06 9:46 ` Nikolai Weibull @ 2013-09-06 10:05 ` Suvayu Ali 0 siblings, 0 replies; 13+ messages in thread From: Suvayu Ali @ 2013-09-06 10:05 UTC (permalink / raw) To: Nikolai Weibull; +Cc: help-gnu-emacs@gnu.org, Yuri Khan On Fri, Sep 06, 2013 at 11:46:15AM +0200, Nikolai Weibull wrote: > On Fri, Sep 6, 2013 at 11:40 AM, Suvayu Ali <fatkasuvayu+linux@gmail.com> wrote: > > > Could you please give an example of the command you are using? > > https://github.com/now/dot-home/blob/master/bin/mfedit.in Aha! It is a specialised case I guess, but it makes sense. Thank you, -- Suvayu Open source is the future. It sets us free. ^ permalink raw reply [flat|nested] 13+ messages in thread
* Using emacsclient -t as $EDITOR from within Emacs @ 2013-09-04 20:42 Nikolai Weibull 2013-09-05 0:26 ` Suvayu Ali 0 siblings, 1 reply; 13+ messages in thread From: Nikolai Weibull @ 2013-09-04 20:42 UTC (permalink / raw) To: Emacs Users Hi! Invoking emacsclient -t from shell-command gives me emacsclient: could not get terminal name It seems that ttyname (fileno (stdio)) fails, which doesn’t seem unreasonable, I suppose, but I was wondering how I should get around this. I want to be able to execute commands that invoke $EDITOR, which I’ve set to a shell script that invokes emacsclient -t, from within Emacs (for example, from Dired) that’s running as a server and so far I’m only either failing with errors or locking up my terminal. ^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: Using emacsclient -t as $EDITOR from within Emacs 2013-09-04 20:42 Nikolai Weibull @ 2013-09-05 0:26 ` Suvayu Ali 2013-09-05 6:36 ` Nikolai Weibull 0 siblings, 1 reply; 13+ messages in thread From: Suvayu Ali @ 2013-09-05 0:26 UTC (permalink / raw) To: help-gnu-emacs On Wed, Sep 04, 2013 at 10:42:42PM +0200, Nikolai Weibull wrote: > Hi! > > Invoking emacsclient -t from shell-command gives me > > emacsclient: could not get terminal name > > It seems that ttyname (fileno (stdio)) fails, which doesn’t seem > unreasonable, I suppose, but I was wondering how I should get around > this. I want to be able to execute commands that invoke $EDITOR, > which I’ve set to a shell script that invokes emacsclient -t, from > within Emacs (for example, from Dired) that’s running as a server and > so far I’m only either failing with errors or locking up my terminal. > eamcsclient -t works only in text terminals. Does emacsclient -c work instead? -- Suvayu Open source is the future. It sets us free. ^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: Using emacsclient -t as $EDITOR from within Emacs 2013-09-05 0:26 ` Suvayu Ali @ 2013-09-05 6:36 ` Nikolai Weibull 2013-09-05 7:33 ` Suvayu Ali 0 siblings, 1 reply; 13+ messages in thread From: Nikolai Weibull @ 2013-09-05 6:36 UTC (permalink / raw) To: Suvayu Ali; +Cc: Emacs Users On Thu, Sep 5, 2013 at 2:26 AM, Suvayu Ali <fatkasuvayu+linux@gmail.com> wrote: > On Wed, Sep 04, 2013 at 10:42:42PM +0200, Nikolai Weibull wrote: >> Hi! >> >> Invoking emacsclient -t from shell-command gives me >> >> emacsclient: could not get terminal name >> >> It seems that ttyname (fileno (stdio)) fails, which doesn’t seem >> unreasonable, I suppose, but I was wondering how I should get around >> this. I want to be able to execute commands that invoke $EDITOR, >> which I’ve set to a shell script that invokes emacsclient -t, from >> within Emacs (for example, from Dired) that’s running as a server and >> so far I’m only either failing with errors or locking up my terminal. >> > > eamcsclient -t works only in text terminals. Does emacsclient -c work > instead? I’m in a text terminal. I realize now that I didn’t say so in my description above. Sorry about that. ^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: Using emacsclient -t as $EDITOR from within Emacs 2013-09-05 6:36 ` Nikolai Weibull @ 2013-09-05 7:33 ` Suvayu Ali 0 siblings, 0 replies; 13+ messages in thread From: Suvayu Ali @ 2013-09-05 7:33 UTC (permalink / raw) To: Nikolai Weibull; +Cc: Emacs Users On Thu, Sep 05, 2013 at 08:36:24AM +0200, Nikolai Weibull wrote: > On Thu, Sep 5, 2013 at 2:26 AM, Suvayu Ali <fatkasuvayu+linux@gmail.com> wrote: > > On Wed, Sep 04, 2013 at 10:42:42PM +0200, Nikolai Weibull wrote: > >> Hi! > >> > >> Invoking emacsclient -t from shell-command gives me > >> > >> emacsclient: could not get terminal name > >> > >> It seems that ttyname (fileno (stdio)) fails, which doesn’t seem > >> unreasonable, I suppose, but I was wondering how I should get around > >> this. I want to be able to execute commands that invoke $EDITOR, > >> which I’ve set to a shell script that invokes emacsclient -t, from > >> within Emacs (for example, from Dired) that’s running as a server and > >> so far I’m only either failing with errors or locking up my terminal. > >> > > > > eamcsclient -t works only in text terminals. Does emacsclient -c work > > instead? > > I’m in a text terminal. I realize now that I didn’t say so in my > description above. Sorry about that. In that case, I don't think it is possible to invoke an emacsclient frame when it is already occupied. I'm not sure what you are trying to achieve though. Wouldn't just C-x C-f, `find-file', work? -- Suvayu Open source is the future. It sets us free. ^ permalink raw reply [flat|nested] 13+ messages in thread
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2013-09-05 23:36 ` Using emacsclient -t as $EDITOR from within Emacs Felix Dietrich
2013-09-06 6:02 ` Nikolai Weibull
2013-09-06 7:10 ` Suvayu Ali
2013-09-06 7:59 ` Yuri Khan
2013-09-06 8:57 ` Suvayu Ali
2013-09-06 9:08 ` Nikolai Weibull
2013-09-06 9:40 ` Suvayu Ali
2013-09-06 9:46 ` Nikolai Weibull
2013-09-06 10:05 ` Suvayu Ali
2013-09-04 20:42 Nikolai Weibull
2013-09-05 0:26 ` Suvayu Ali
2013-09-05 6:36 ` Nikolai Weibull
2013-09-05 7:33 ` Suvayu Ali
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