[PATCH] gnu: rxvt-unicode: Add the terminal capability data.

[PATCH] gnu: rxvt-unicode: Add the terminal capability data.

[Mathieu Lirzin]

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From 00d45cdc47bd0d031d0870155e24fa814dad4833 Mon Sep 17 00:00:00 2001
From: Mathieu Lirzin <mthl@gnu.org>
Date: Sun, 6 Dec 2015 21:58:03 +0100
Subject: [PATCH] gnu: rxvt-unicode: Add the terminal capability data.

This adds the necessary terminal capability data which are not provided
by Ncurses due to a personal conflict between the respective
maintainers.  See
https://lists.gnu.org/archive/html/bug-ncurses/2009-10/msg00031.html.

* gnu/packages/xdisorg.scm (rxvt-unicode)[native-inputs]: Add ncurses.
[arguments]: Set the destination of the terminfo files.
---
 gnu/packages/xdisorg.scm | 30 ++++++++++++++++++------------
 1 file changed, 18 insertions(+), 12 deletions(-)

diff --git a/gnu/packages/xdisorg.scm b/gnu/packages/xdisorg.scm
index 4b5308c..df8aa99 100644
--- a/gnu/packages/xdisorg.scm
+++ b/gnu/packages/xdisorg.scm
@@ -40,6 +40,7 @@
   #:use-module (gnu packages gettext)
   #:use-module (gnu packages glib)
   #:use-module (gnu packages gnome)               ;for libgudev
+  #:use-module (gnu packages ncurses)
   #:use-module (gnu packages perl)
   #:use-module (gnu packages python)
   #:use-module (gnu packages linux)
@@ -529,23 +530,28 @@ compact configuration syntax.")
   (package
     (name "rxvt-unicode")
     (version "9.21")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append
-              "http://dist.schmorp.de/rxvt-unicode/"
-              name "-"
-              version
-              ".tar.bz2"))
-        (sha256
-          (base32
-            "0swmi308v5yxsddrdhvi4cch88k2bbs2nffpl5j5m2f55gbhw9vm"))))
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "http://dist.schmorp.de/rxvt-unicode/"
+                                  name "-" version ".tar.bz2"))
+              (sha256
+               (base32
+                "0swmi308v5yxsddrdhvi4cch88k2bbs2nffpl5j5m2f55gbhw9vm"))))
     (build-system gnu-build-system)
+    (arguments
+     ;; This sets the destination when installing the necessary terminal
+     ;; capability data which are not provided by Ncurses due to a personal
+     ;; conflict between the respective maintainers.  See
+     ;; https://lists.gnu.org/archive/html/bug-ncurses/2009-10/msg00031.html.
+     '(#:make-flags (list (string-append "TERMINFO="
+                                         (assoc-ref %outputs "out")
+                                         "/share/terminfo"))))
     (inputs
      `(("libXft" ,libxft)
        ("libX11" ,libx11)))
     (native-inputs
-     `(("perl" ,perl)
+     `(("ncurses" ,ncurses)         ;trigger the installation of terminfo data
+       ("perl" ,perl)
        ("pkg-config" ,pkg-config)))
     (home-page "http://software.schmorp.de/pkg/rxvt-unicode.html")
     (synopsis "Rxvt clone with XFT and unicode support")
-- 
2.6.3

Re: [PATCH] gnu: rxvt-unicode: Add the terminal capability data.

[Leo Famulari]

On Tue, Dec 08, 2015 at 06:18:50PM +0100, Mathieu Lirzin wrote:
> From 00d45cdc47bd0d031d0870155e24fa814dad4833 Mon Sep 17 00:00:00 2001
> From: Mathieu Lirzin <mthl@gnu.org>
> Date: Sun, 6 Dec 2015 21:58:03 +0100
> Subject: [PATCH] gnu: rxvt-unicode: Add the terminal capability data.
> 
> This adds the necessary terminal capability data which are not provided
> by Ncurses due to a personal conflict between the respective
> maintainers.  See
> https://lists.gnu.org/archive/html/bug-ncurses/2009-10/msg00031.html.
> 
> * gnu/packages/xdisorg.scm (rxvt-unicode)[native-inputs]: Add ncurses.
> [arguments]: Set the destination of the terminfo files.
> ---
>  gnu/packages/xdisorg.scm | 30 ++++++++++++++++++------------
>  1 file changed, 18 insertions(+), 12 deletions(-)
> 
> diff --git a/gnu/packages/xdisorg.scm b/gnu/packages/xdisorg.scm
> index 4b5308c..df8aa99 100644
> --- a/gnu/packages/xdisorg.scm
> +++ b/gnu/packages/xdisorg.scm
> @@ -40,6 +40,7 @@
>    #:use-module (gnu packages gettext)
>    #:use-module (gnu packages glib)
>    #:use-module (gnu packages gnome)               ;for libgudev
> +  #:use-module (gnu packages ncurses)
>    #:use-module (gnu packages perl)
>    #:use-module (gnu packages python)
>    #:use-module (gnu packages linux)
> @@ -529,23 +530,28 @@ compact configuration syntax.")
>    (package
>      (name "rxvt-unicode")
>      (version "9.21")
> -    (source
> -      (origin
> -        (method url-fetch)
> -        (uri (string-append
> -              "http://dist.schmorp.de/rxvt-unicode/"
> -              name "-"
> -              version
> -              ".tar.bz2"))
> -        (sha256
> -          (base32
> -            "0swmi308v5yxsddrdhvi4cch88k2bbs2nffpl5j5m2f55gbhw9vm"))))
> +    (source (origin
> +              (method url-fetch)
> +              (uri (string-append "http://dist.schmorp.de/rxvt-unicode/"
> +                                  name "-" version ".tar.bz2"))
> +              (sha256
> +               (base32
> +                "0swmi308v5yxsddrdhvi4cch88k2bbs2nffpl5j5m2f55gbhw9vm"))))
>      (build-system gnu-build-system)
> +    (arguments
> +     ;; This sets the destination when installing the necessary terminal
> +     ;; capability data which are not provided by Ncurses due to a personal
> +     ;; conflict between the respective maintainers.  See
> +     ;; https://lists.gnu.org/archive/html/bug-ncurses/2009-10/msg00031.html.

I think it's best not to describe the issue in these terms in the
codebase. I don't know the situation, but if it is as you say, I think
it will never get better as things like this "cement" the conflict in
source code. Also, ncurses seems to be capitalized only at the beginning
of a sentence. How about this:

This sets the destination when installing the necessary terminal
capability data, which are not provided by ncurses. See
https://lists.gnu.org/archive/html/bug-ncurses/2009-10/msg00031.html

> +     '(#:make-flags (list (string-append "TERMINFO="
> +                                         (assoc-ref %outputs "out")
> +                                         "/share/terminfo"))))
>      (inputs
>       `(("libXft" ,libxft)
>         ("libX11" ,libx11)))
>      (native-inputs
> -     `(("perl" ,perl)
> +     `(("ncurses" ,ncurses)         ;trigger the installation of terminfo data
> +       ("perl" ,perl)
>         ("pkg-config" ,pkg-config)))
>      (home-page "http://software.schmorp.de/pkg/rxvt-unicode.html")
>      (synopsis "Rxvt clone with XFT and unicode support")
> -- 
> 2.6.3
> 
> 

Re: [PATCH] gnu: rxvt-unicode: Add the terminal capability data.

[Mathieu Lirzin]

Leo Famulari <leo@famulari.name> writes:

> On Tue, Dec 08, 2015 at 06:18:50PM +0100, Mathieu Lirzin wrote:
>> From 00d45cdc47bd0d031d0870155e24fa814dad4833 Mon Sep 17 00:00:00 2001
>> From: Mathieu Lirzin <mthl@gnu.org>
>> Date: Sun, 6 Dec 2015 21:58:03 +0100
>> Subject: [PATCH] gnu: rxvt-unicode: Add the terminal capability data.
>> 
>> This adds the necessary terminal capability data which are not provided
>> by Ncurses due to a personal conflict between the respective
>> maintainers.  See
>> https://lists.gnu.org/archive/html/bug-ncurses/2009-10/msg00031.html.
>> 
>> * gnu/packages/xdisorg.scm (rxvt-unicode)[native-inputs]: Add ncurses.
>> [arguments]: Set the destination of the terminfo files.
[...]
> I think it's best not to describe the issue in these terms in the
> codebase. I don't know the situation, but if it is as you say, I think
> it will never get better as things like this "cement" the conflict in
> source code. Also, ncurses seems to be capitalized only at the beginning
> of a sentence. How about this:
>
> This sets the destination when installing the necessary terminal
> capability data, which are not provided by ncurses. See
> https://lists.gnu.org/archive/html/bug-ncurses/2009-10/msg00031.html

I will use this.

Thanks for your suggestion.

--
Mathieu Lirzin

Re: [PATCH] gnu: rxvt-unicode: Add the terminal capability data.

[Ludovic Courtès]

Mathieu Lirzin <mthl@gnu.org> skribis:

> From 00d45cdc47bd0d031d0870155e24fa814dad4833 Mon Sep 17 00:00:00 2001
> From: Mathieu Lirzin <mthl@gnu.org>
> Date: Sun, 6 Dec 2015 21:58:03 +0100
> Subject: [PATCH] gnu: rxvt-unicode: Add the terminal capability data.
>
> This adds the necessary terminal capability data which are not provided
> by Ncurses due to a personal conflict between the respective
> maintainers.  See
> https://lists.gnu.org/archive/html/bug-ncurses/2009-10/msg00031.html.

As Leo suggests, I think it’s best to stick to the technical facts,
along with a link to the discussion.

> * gnu/packages/xdisorg.scm (rxvt-unicode)[native-inputs]: Add ncurses.
> [arguments]: Set the destination of the terminfo files.
> +    (arguments
> +     ;; This sets the destination when installing the necessary terminal
> +     ;; capability data which are not provided by Ncurses due to a personal
> +     ;; conflict between the respective maintainers.  See
> +     ;; https://lists.gnu.org/archive/html/bug-ncurses/2009-10/msg00031.html.

Same here.

Otherwise LGTM.  It’s great that you fixed this!  People had reported
the issue on IRC, so that’ll make them happy!  :-)

Thanks,
Ludo’.

Re: [PATCH] gnu: rxvt-unicode: Add the terminal capability data.

[Mathieu Lirzin]

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ludo@gnu.org (Ludovic Courtès) writes:

> Otherwise LGTM.  It’s great that you fixed this!  People had reported
> the issue on IRC, so that’ll make them happy!  :-)

I think this is only a partial fix. to launch emacsclient I still need
to do this:

  TERMINFO="$HOME/.guix-profile/share/terminfo" emacsclient --tty foo

in terminfo(5), we can read this:

--8<---------------cut here---------------start------------->8---
Fetching Compiled Descriptions
    The ncurses library  searches  for  terminal  descriptions  in  several
    places.   It  uses only the first description found.  The library has a
    compiled-in list of places to search which can be overridden  by  envi‐
    ronment  variables.   Before  starting  to  search,  ncurses eliminates
    duplicates in its search list.
    
     ·  If the environment variable TERMINFO is set, it is  interpreted  as
        the pathname of a directory containing the compiled description you
        are working on.  Only that directory is searched.
    
     ·  If TERMINFO is not set, ncurses will instead look in the  directory
        $HOME/.terminfo for a compiled description.

     ·  Next,  if  the  environment  variable TERMINFO_DIRS is set, ncurses
        will interpret the contents of that variable as a  list  of  colon-
        separated directories (or database files) to be searched.

        An  empty directory name (i.e., if the variable begins or ends with
        a colon, or contains adjacent colons) is interpreted as the  system
        location /etc/terminfo.

     ·  Finally, ncurses searches these compiled-in locations:
         ·  a list of directories (no default value), and
         ·  the  system  terminfo directory, /etc/terminfo (the compiled-in
            default).
--8<---------------cut here---------------end--------------->8---

I suppose that "system terminfo directory" is set to
/gnu/store/...-ncurses-6.0 and IIUC correctly this is the only place
automatically searched.  What about adding TERMINFO_DIRS in
"$HOME/.guix-profile/etc/profile"?  I think TERMINFO_DIRS is more
appropriate than TERMINFO because it let the possibility for non-GuixSD
users to have multiple directories in it.

Here is an updated patch with my proposal:


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From eedb9ca34c5bbc973765c8bd8a17b0a42c98e427 Mon Sep 17 00:00:00 2001
From: Mathieu Lirzin <mthl@gnu.org>
Date: Sun, 6 Dec 2015 21:58:03 +0100
Subject: [PATCH] gnu: rxvt-unicode: Add the terminal capability data.

This sets the destination when installing the necessary terminal
capability data, which are not provided by ncurses. See
https://lists.gnu.org/archive/html/bug-ncurses/2009-10/msg00031.html

* gnu/packages/xdisorg.scm (rxvt-unicode)[native-inputs]: Add ncurses.
[arguments]: Set the destination of the terminfo files.
[native-search-path]: New field.  Make them automatically available to
the user.
---
 gnu/packages/xdisorg.scm | 33 +++++++++++++++++++++------------
 1 file changed, 21 insertions(+), 12 deletions(-)

diff --git a/gnu/packages/xdisorg.scm b/gnu/packages/xdisorg.scm
index 4b5308c..ab48b2a 100644
--- a/gnu/packages/xdisorg.scm
+++ b/gnu/packages/xdisorg.scm
@@ -40,6 +40,7 @@
   #:use-module (gnu packages gettext)
   #:use-module (gnu packages glib)
   #:use-module (gnu packages gnome)               ;for libgudev
+  #:use-module (gnu packages ncurses)
   #:use-module (gnu packages perl)
   #:use-module (gnu packages python)
   #:use-module (gnu packages linux)
@@ -529,24 +530,32 @@ compact configuration syntax.")
   (package
     (name "rxvt-unicode")
     (version "9.21")
-    (source
-      (origin
-        (method url-fetch)
-        (uri (string-append
-              "http://dist.schmorp.de/rxvt-unicode/"
-              name "-"
-              version
-              ".tar.bz2"))
-        (sha256
-          (base32
-            "0swmi308v5yxsddrdhvi4cch88k2bbs2nffpl5j5m2f55gbhw9vm"))))
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "http://dist.schmorp.de/rxvt-unicode/"
+                                  name "-" version ".tar.bz2"))
+              (sha256
+               (base32
+                "0swmi308v5yxsddrdhvi4cch88k2bbs2nffpl5j5m2f55gbhw9vm"))))
     (build-system gnu-build-system)
+    (arguments
+     ;; This sets the destination when installing the necessary terminal
+     ;; capability data, which are not provided by ncurses. See
+     ;; https://lists.gnu.org/archive/html/bug-ncurses/2009-10/msg00031.html
+     '(#:make-flags (list (string-append "TERMINFO="
+                                         (assoc-ref %outputs "out")
+                                         "/share/terminfo"))))
     (inputs
      `(("libXft" ,libxft)
        ("libX11" ,libx11)))
     (native-inputs
-     `(("perl" ,perl)
+     `(("ncurses" ,ncurses)         ;trigger the installation of terminfo data
+       ("perl" ,perl)
        ("pkg-config" ,pkg-config)))
+    (native-search-paths
+     (list (search-path-specification
+            (variable "TERMINFO_DIRS")
+            (files '("share/terminfo")))))
     (home-page "http://software.schmorp.de/pkg/rxvt-unicode.html")
     (synopsis "Rxvt clone with XFT and unicode support")
     (description "Rxvt-unicode (urxvt) is a colour vt102 terminal emulator
-- 
2.6.3


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Thanks,

--
Mathieu Lirzin

Re: [PATCH] gnu: rxvt-unicode: Add the terminal capability data.

[Ludovic Courtès]

Mathieu Lirzin <mthl@gnu.org> skribis:

> ludo@gnu.org (Ludovic Courtès) writes:
>
>> Otherwise LGTM.  It’s great that you fixed this!  People had reported
>> the issue on IRC, so that’ll make them happy!  :-)
>
> I think this is only a partial fix. to launch emacsclient I still need
> to do this:
>
>   TERMINFO="$HOME/.guix-profile/share/terminfo" emacsclient --tty foo
>
> in terminfo(5), we can read this:

[...]

> I suppose that "system terminfo directory" is set to
> /gnu/store/...-ncurses-6.0 and IIUC correctly this is the only place
> automatically searched.  What about adding TERMINFO_DIRS in
> "$HOME/.guix-profile/etc/profile"?  I think TERMINFO_DIRS is more
> appropriate than TERMINFO because it let the possibility for non-GuixSD
> users to have multiple directories in it.

Indeed, sounds good.

> From eedb9ca34c5bbc973765c8bd8a17b0a42c98e427 Mon Sep 17 00:00:00 2001
> From: Mathieu Lirzin <mthl@gnu.org>
> Date: Sun, 6 Dec 2015 21:58:03 +0100
> Subject: [PATCH] gnu: rxvt-unicode: Add the terminal capability data.
>
> This sets the destination when installing the necessary terminal
> capability data, which are not provided by ncurses. See
> https://lists.gnu.org/archive/html/bug-ncurses/2009-10/msg00031.html
>
> * gnu/packages/xdisorg.scm (rxvt-unicode)[native-inputs]: Add ncurses.
> [arguments]: Set the destination of the terminfo files.
> [native-search-path]: New field.  Make them automatically available to
> the user.

[...]

> +    (native-search-paths
> +     (list (search-path-specification
> +            (variable "TERMINFO_DIRS")
> +            (files '("share/terminfo")))))

This should be in the ncurses package itself, since it is “owned” by
ncurses, not rxvt.

However, there’s the limitation that, currently, --search-paths
advertises the variables of things that are explicitly in the profile.
Ncurses is usually not in the profile; it is a dependency of something
that is in the profile.  Thus, people wouldn’t see anything about
TERMINFO_DIRS in practice (we have the same problem with OpenSSL,
GStreamer, and other librairies that have associated variables.)

Long story short, I would avoid adding this ‘native-search-paths’ here,
but I’m OK with it since that would make the thing usable, provided
there’s a big FIXME in there.

WDYT?

Ludo’.

Re: [PATCH] gnu: rxvt-unicode: Add the terminal capability data.

[Leo Famulari]

On Wed, Dec 09, 2015 at 09:54:15PM +0100, Ludovic Courtès wrote:
> Mathieu Lirzin <mthl@gnu.org> skribis:
> 
> > ludo@gnu.org (Ludovic Courtès) writes:
> >
> >> Otherwise LGTM.  It’s great that you fixed this!  People had reported
> >> the issue on IRC, so that’ll make them happy!  :-)
> >
> > I think this is only a partial fix. to launch emacsclient I still need
> > to do this:
> >
> >   TERMINFO="$HOME/.guix-profile/share/terminfo" emacsclient --tty foo
> >
> > in terminfo(5), we can read this:
> 
> [...]
> 
> > I suppose that "system terminfo directory" is set to
> > /gnu/store/...-ncurses-6.0 and IIUC correctly this is the only place
> > automatically searched.  What about adding TERMINFO_DIRS in
> > "$HOME/.guix-profile/etc/profile"?  I think TERMINFO_DIRS is more
> > appropriate than TERMINFO because it let the possibility for non-GuixSD
> > users to have multiple directories in it.
> 
> Indeed, sounds good.
> 
> > From eedb9ca34c5bbc973765c8bd8a17b0a42c98e427 Mon Sep 17 00:00:00 2001
> > From: Mathieu Lirzin <mthl@gnu.org>
> > Date: Sun, 6 Dec 2015 21:58:03 +0100
> > Subject: [PATCH] gnu: rxvt-unicode: Add the terminal capability data.
> >
> > This sets the destination when installing the necessary terminal
> > capability data, which are not provided by ncurses. See
> > https://lists.gnu.org/archive/html/bug-ncurses/2009-10/msg00031.html
> >
> > * gnu/packages/xdisorg.scm (rxvt-unicode)[native-inputs]: Add ncurses.
> > [arguments]: Set the destination of the terminfo files.
> > [native-search-path]: New field.  Make them automatically available to
> > the user.
> 
> [...]
> 
> > +    (native-search-paths
> > +     (list (search-path-specification
> > +            (variable "TERMINFO_DIRS")
> > +            (files '("share/terminfo")))))
> 
> This should be in the ncurses package itself, since it is “owned” by
> ncurses, not rxvt.
> 
> However, there’s the limitation that, currently, --search-paths
> advertises the variables of things that are explicitly in the profile.
> Ncurses is usually not in the profile; it is a dependency of something
> that is in the profile.  Thus, people wouldn’t see anything about
> TERMINFO_DIRS in practice (we have the same problem with OpenSSL,
> GStreamer, and other librairies that have associated variables.)
> 
> Long story short, I would avoid adding this ‘native-search-paths’ here,
> but I’m OK with it since that would make the thing usable, provided
> there’s a big FIXME in there.
> 
> WDYT?

Since the linked discussion is from 2009, maybe somebody should again
try to politely submit the patch upstream.

> 
> Ludo’.
> 

Re: [PATCH] gnu: rxvt-unicode: Add the terminal capability data.

[Mathieu Lirzin]

Leo Famulari <leo@famulari.name> writes:

> Since the linked discussion is from 2009, maybe somebody should again
> try to politely submit the patch upstream.

Feel free to take the time to do it.

Thanks,

--
Mathieu Lirzin

Re: [PATCH] gnu: rxvt-unicode: Add the terminal capability data.

[Mathieu Lirzin]

ludo@gnu.org (Ludovic Courtès) writes:

> Mathieu Lirzin <mthl@gnu.org> skribis:
[...]
>> +    (native-search-paths
>> +     (list (search-path-specification
>> +            (variable "TERMINFO_DIRS")
>> +            (files '("share/terminfo")))))
>
> This should be in the ncurses package itself, since it is “owned” by
> ncurses, not rxvt.
>
> However, there’s the limitation that, currently, --search-paths
> advertises the variables of things that are explicitly in the profile.
> Ncurses is usually not in the profile; it is a dependency of something
> that is in the profile.  Thus, people wouldn’t see anything about
> TERMINFO_DIRS in practice (we have the same problem with OpenSSL,
> GStreamer, and other librairies that have associated variables.)
>
> Long story short, I would avoid adding this ‘native-search-paths’ here,
> but I’m OK with it since that would make the thing usable, provided
> there’s a big FIXME in there.
>
> WDYT?

It makes sense.  Since it is quite complicated, what about creating a
bug report explaining the problem and make the comment refer to it like
this:

  ;; FIXME: This is not located in `ncurses' for usability reasons.  See
  ;; https://debbugs.gnu.org/cgi/bugreport.cgi?bug=XXXXX

WDYT?  Can you take care of creating the bug report or propose an
appropriate FIXME comment?  I don't feel up to explaining this myself.

Thanks,

--
Mathieu Lirzin

Re: [PATCH] gnu: rxvt-unicode: Add the terminal capability data.

[Ludovic Courtès]

Mathieu Lirzin <mthl@gnu.org> skribis:

> ludo@gnu.org (Ludovic Courtès) writes:
>
>> Mathieu Lirzin <mthl@gnu.org> skribis:
> [...]
>>> +    (native-search-paths
>>> +     (list (search-path-specification
>>> +            (variable "TERMINFO_DIRS")
>>> +            (files '("share/terminfo")))))
>>
>> This should be in the ncurses package itself, since it is “owned” by
>> ncurses, not rxvt.
>>
>> However, there’s the limitation that, currently, --search-paths
>> advertises the variables of things that are explicitly in the profile.
>> Ncurses is usually not in the profile; it is a dependency of something
>> that is in the profile.  Thus, people wouldn’t see anything about
>> TERMINFO_DIRS in practice (we have the same problem with OpenSSL,
>> GStreamer, and other librairies that have associated variables.)
>>
>> Long story short, I would avoid adding this ‘native-search-paths’ here,
>> but I’m OK with it since that would make the thing usable, provided
>> there’s a big FIXME in there.
>>
>> WDYT?
>
> It makes sense.  Since it is quite complicated, what about creating a
> bug report explaining the problem and make the comment refer to it like
> this:
>
>   ;; FIXME: This is not located in `ncurses' for usability reasons.  See
>   ;; https://debbugs.gnu.org/cgi/bugreport.cgi?bug=XXXXX
>
> WDYT?  Can you take care of creating the bug report or propose an
> appropriate FIXME comment?  I don't feel up to explaining this myself.

Good idea.  It’s at <https://bugs.gnu.org/22138>.

Thanks,
Ludo’.