Is it possible to use vim to allow multiple people editing a single file?

[Peng Yu]

Hi, things like google drive allow multiple people to edit one
document at the same time. I am wondering if there is something in vim
that can help with this as well. Does anybody know? Thanks.

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Regards,
Peng

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[Justin M. Keyes]

On Sun, Jan 17, 2016 at 2:08 PM, Peng Yu <[hidden email]> wrote:
> Hi, things like google drive allow multiple people to edit one
> document at the same time. I am wondering if there is something in vim
> that can help with this as well. Does anybody know? Thanks.

Are you aware of https://floobits.com/help/plugins/nvim ?

Justin M. Keyes

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[Ben Fritz]

On Sunday, January 17, 2016 at 1:09:03 PM UTC-6, Peng Yu wrote:
> Hi, things like google drive allow multiple people to edit one
> document at the same time. I am wondering if there is something in vim
> that can help with this as well. Does anybody know? Thanks.
>
> --
> Regards,
> Peng

There was a net proof-of-concept a while back that I *think* was developed into a functional plugin. I'm not sure whether it is still maintained, the last commit was a while ago:

https://github.com/FredKSchott/CoVim

Other ideas depending on your OS may include sharing a screen session, etc. as suggested here: http://superuser.com/questions/231892/vim-multiuser-editing

Good search terms to use for this feature would be "collaborative editing in Vim" or similar.

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[Justin M. Keyes]

On Jan 18, 2016 11:10, "Ben Fritz" <[hidden email]> wrote:
>
> On Sunday, January 17, 2016 at 1:09:03 PM UTC-6, Peng Yu wrote:
> > Hi, things like google drive allow multiple people to edit one
> > document at the same time. I am wondering if there is something in vim
> > that can help with this as well. Does anybody know? Thanks.
> >
> > --
> > Regards,
> > Peng
>
> There was a net proof-of-concept a while back that I *think* was developed into a functional plugin. I'm not sure whether it is still maintained, the last commit was a while ago:
>
> https://github.com/FredKSchott/CoVim

CoVim, like floobits, is moving to Neovim:

https://github.com/FredKSchott/CoVim/issues/86

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[Peng Yu]

Hi,

I am wondering how to debug a vim plugin (for example, the following
one) in an efficient way.

https://github.com/Clavelito/indent-sh.vim/blob/master/indent/sh.vim

The main difficulty that I see is that a vim plugin is different from
a typical program is that in a typical programming language one can
easily isolate a piece of code and insert print statements. But in a
vim plugin, since it causes some effects in the code shown in vim, I
am not sure how a print statement can help much.

Also, in a regular programming language, one can run a function with
different parameters, then check its behavior. But a vim plugin is
just a whole piece of code, it is not clear how to run a piece of code
in an isolated environment to inspect its behavior.

Does anybody have any tips on how to debugging vim plugins? Thanks.

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Regards,
Peng

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[Tony Mechelynck]

On Mon, Dec 10, 2018 at 3:55 PM Peng Yu <[hidden email]> wrote:

>
> Hi,
>
> I am wondering how to debug a vim plugin (for example, the following
> one) in an efficient way.
>
> https://github.com/Clavelito/indent-sh.vim/blob/master/indent/sh.vim
>
> The main difficulty that I see is that a vim plugin is different from
> a typical program is that in a typical programming language one can
> easily isolate a piece of code and insert print statements. But in a
> vim plugin, since it causes some effects in the code shown in vim, I
> am not sure how a print statement can help much.
>
> Also, in a regular programming language, one can run a function with
> different parameters, then check its behavior. But a vim plugin is
> just a whole piece of code, it is not clear how to run a piece of code
> in an isolated environment to inspect its behavior.
>
> Does anybody have any tips on how to debugging vim plugins? Thanks.
>
> --
> Regards,
> Peng

Debugging Vim-script language is Dr. Chip's province; he even wrote a
script to help debug other scripts. You may already check if
http://www.drchip.org/astronaut/vim/#DECHO helps you, otherwise I'm
adding Dr. Chip as Cc in case he might have other helpful information
for you.

Best regards,
Tony.

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[Luc Hermitte]

Hi,

> I am wondering how to debug a vim plugin (for example, the following
> one) in an efficient way.
>
> [...]
>
> Does anybody have any tips on how to debugging vim plugins? Thanks.


In my lh-vim-lib [1] library plugin I provide two sets of tools
- log functions [2] that can fill the qf window with the log messages automatically -- other logging frameworks fail to automatically link to the line where the log is emitted
- assert functions [3] for doing some design by contract. They permit to fail fast in case of unexpected value detected / dump the current callstack / start the debugger

It also provides a function that decodes displayed callstacks on error [4]

I also use a unit test framework [5] for unit testing functions.

[1] https://github.com/LucHermitte/lh-vim-lib
[2] https://github.com/LucHermitte/lh-vim-lib/blob/master/doc/Log.md
[3] https://github.com/LucHermitte/lh-vim-lib/blob/master/doc/DbC.md
[4] https://github.com/LucHermitte/lh-vim-lib/blob/master/doc/Callstack.md#lhexceptionsay_what
[5] https://github.com/LucHermitte/vim-UT

HTH,

--
Luc Hermitte

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[MarcWeber]

https://github.com/MarcWeber/vim-git-wiki/blob/master/vim-online-wiki-source/topic/debugging-viml

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[Bram Moolenaar]

Peng Yu wrote:

> I am wondering how to debug a vim plugin (for example, the following
> one) in an efficient way.
>
> https://github.com/Clavelito/indent-sh.vim/blob/master/indent/sh.vim
>
> The main difficulty that I see is that a vim plugin is different from
> a typical program is that in a typical programming language one can
> easily isolate a piece of code and insert print statements. But in a
> vim plugin, since it causes some effects in the code shown in vim, I
> am not sure how a print statement can help much.
>
> Also, in a regular programming language, one can run a function with
> different parameters, then check its behavior. But a vim plugin is
> just a whole piece of code, it is not clear how to run a piece of code
> in an isolated environment to inspect its behavior.
>
> Does anybody have any tips on how to debugging vim plugins? Thanks.

Besides what's already said, if you just want a simple way to log some
text, you can use the mechanism for channels:

        ch_logfile('SomeFileName', 'w')
        ch_log('This happened')

Messages are written to a log, thus this also works for things like
autocomplete.  It will include time stamps, which are often useful.

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