[PATCH] gnu: gnucash: Enable python bindings.

DoneSubmitted by Prafulla Giri.
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  • Marius Bakke
  • Prafulla Giri
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Prafulla Giri wrote on 29 Oct 2020 16:29
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Esteemed maintainers,

Attached is a patch that enables python bindings in gnucash.

I have also taken the liberty of adding native-search-paths field and
adding 'PYTHONPATH' to it for foreign distro users who might want to use
gnucash python bindings with host-os-supplied python.

Thanks!
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From a7ea4f9743441219940442be188238e363c4943f Mon Sep 17 00:00:00 2001
From: Prafulla Giri <pratheblackdiamond@gmail.com>
Date: Thu, 29 Oct 2020 20:47:37 +0545
Subject: [PATCH] gnu: gnucash: Enable python bindings.

* gnu/packages/gnucash.scm (gnucash):
[inputs]: Add python.
[arguments]<configure-flags>: Add '-DWITH_PYTHON=ON'
[native-search-paths]: New field. Add PYTHONPATH.
---
gnu/packages/gnucash.scm | 14 ++++++++++++++
1 file changed, 14 insertions(+)

Toggle diff (55 lines)
diff --git a/gnu/packages/gnucash.scm b/gnu/packages/gnucash.scm
index 8f58ce332a..d5a356ab54 100644
--- a/gnu/packages/gnucash.scm
+++ b/gnu/packages/gnucash.scm
@@ -24,6 +24,7 @@
 
 (define-module (gnu packages gnucash)
   #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (guix utils)
   #:use-module (guix packages)
   #:use-module (guix download)
   #:use-module (guix build-system gnu)
@@ -48,6 +49,7 @@
   #:use-module (gnu packages multiprecision)
   #:use-module (gnu packages perl)
   #:use-module (gnu packages pkg-config)
+  #:use-module (gnu packages python)
   #:use-module (gnu packages tls)
   #:use-module (gnu packages web)
   #:use-module (gnu packages webkit)
@@ -82,6 +84,7 @@
        ("libxslt" ,libxslt)
        ("webkitgtk" ,webkitgtk)
        ("aqbanking" ,aqbanking)
+       ("python" ,python)
        ("perl-date-manip" ,perl-date-manip)
        ("perl-finance-quote" ,perl-finance-quote)
        ("tzdata" ,tzdata-for-tests)))
@@ -98,6 +101,7 @@
     (outputs '("out" "doc" "debug"))
     (arguments
      `(#:test-target "check"
+       #:configure-flags '("-DWITH_PYTHON=ON")
        #:make-flags '("GUILE_AUTO_COMPILE=0")
        #:modules ((guix build cmake-build-system)
                   ((guix build glib-or-gtk-build-system) #:prefix glib-or-gtk:)
@@ -184,6 +188,16 @@
            (assoc-ref glib-or-gtk:%standard-phases 'glib-or-gtk-compile-schemas))
          (add-after 'install 'glib-or-gtk-wrap
            (assoc-ref glib-or-gtk:%standard-phases 'glib-or-gtk-wrap)))))
+    ;; Export 'PYTHONPATH' for foreign-distro users who might want to
+    ;; use gnucash python bindings with their host-os-supplied python
+    (native-search-paths
+     (list
+      (search-path-specification
+       (variable "PYTHONPATH")
+       (files `(,(string-append "lib/python"
+                                (version-major+minor
+                                 (package-version python))
+                                "/site-packages"))))))
     (home-page "https://www.gnucash.org/")
     (synopsis "Personal and small business financial accounting software")
     (description
-- 
2.28.0
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Prafulla Giri wrote on 1 Nov 2020 05:44
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Further Cleanups
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I am wondering if the python bindings should be separated into an output.
gnucash:python perhaps. That is the route that the Ubuntu developers seem
to have taken. `apt show python3-gnucash`. It would actually make even more
sense with guix as one could use flatpak-installed gnucash for their daily
usage, and then from their /usr/bin/python3 or $GUIX_PROFILE/bin/python3
they could use gnucash programmatically via the bindings.

However, I am not sure if it is possible to specify a
search-path-specification for a particular output of a package. I don't
know much about splitting packages into outputs either. If we had
gnucash:python, and a user ran `guix install gnucash:python`, would that
only get the user /gnu/store/...-gnucash-x.y-python from the substitute
server and save them bandwidth?

If anybody is willing to give me some pointers as to how I could go about
cleanly splitting gnucash into gnucash:python - with the
native-search-path-specification for PYTHONPATH only being declared for
gnucash:python (and that will be an absolute must), I am more than happy to
clean this patch up.

Thank you.
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Prafulla Giri wrote on 2 Nov 2020 14:52
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New and Improved Patch
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Esteemed maintainers,

Attached is an updated version of the patch.

I have removed the native-search-paths specification of PYTHONPATH. I have
also created a new output "python" that contains the python bindings. A new
phase
has been added that splits the python bindings into it's own separate
output. With that, users who only want to use gnucash programmatically can
use it with `guix environment --ad-hoc python gnucash:python`.

Please do let me know if there are any further corrections that I can make.
Thank you.
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From a7fc9565e89bd76e821dcf9df7d783bd5a9dcb51 Mon Sep 17 00:00:00 2001
From: Prafulla Giri <pratheblackdiamond@gmail.com>
Date: Thu, 29 Oct 2020 20:47:37 +0545
Subject: [PATCH] gnu: gnucash: Enable python bindings.

* gnu/packages/gnucash.scm (gnucash):
[inputs]: Add python.
[outputs]: Add new output 'python' for python bindings.
[arguments]<configure-flags>: Add '-DWITH_PYTHON=ON'
[arguments]: Add new build phase 'split-python-bindings'
---
gnu/packages/gnucash.scm | 20 +++++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)

Toggle diff (63 lines)
diff --git a/gnu/packages/gnucash.scm b/gnu/packages/gnucash.scm
index 8f58ce332a..525a2c53b8 100644
--- a/gnu/packages/gnucash.scm
+++ b/gnu/packages/gnucash.scm
@@ -24,6 +24,7 @@
 
 (define-module (gnu packages gnucash)
   #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (guix utils)
   #:use-module (guix packages)
   #:use-module (guix download)
   #:use-module (guix build-system gnu)
@@ -48,6 +49,7 @@
   #:use-module (gnu packages multiprecision)
   #:use-module (gnu packages perl)
   #:use-module (gnu packages pkg-config)
+  #:use-module (gnu packages python)
   #:use-module (gnu packages tls)
   #:use-module (gnu packages web)
   #:use-module (gnu packages webkit)
@@ -82,6 +84,7 @@
        ("libxslt" ,libxslt)
        ("webkitgtk" ,webkitgtk)
        ("aqbanking" ,aqbanking)
+       ("python" ,python)
        ("perl-date-manip" ,perl-date-manip)
        ("perl-finance-quote" ,perl-finance-quote)
        ("tzdata" ,tzdata-for-tests)))
@@ -95,9 +98,10 @@
     (propagated-inputs
      ;; dconf is required at runtime according to README.dependencies.
      `(("dconf" ,dconf)))
-    (outputs '("out" "doc" "debug"))
+    (outputs '("out" "doc" "debug" "python"))
     (arguments
      `(#:test-target "check"
+       #:configure-flags '("-DWITH_PYTHON=ON")
        #:make-flags '("GUILE_AUTO_COMPILE=0")
        #:modules ((guix build cmake-build-system)
                   ((guix build glib-or-gtk-build-system) #:prefix glib-or-gtk:)
@@ -149,6 +153,20 @@
                (symlink (string-append docs "/share/gnome")
                         (string-append doc-output "/share/gnome"))
                #t)))
+         (add-after 'install 'split-python-bindings
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (let* ((out (assoc-ref outputs "out"))
+                    (python-output (assoc-ref outputs "python"))
+                    (python-bindings (string-append
+                                      "lib/python"
+                                      ,(version-major+minor
+                                        (package-version python)))))
+               (mkdir-p (string-append python-output "/" python-bindings))
+               (copy-recursively
+                (string-append out "/" python-bindings)
+                (string-append python-output "/" python-bindings))
+               (delete-file-recursively
+                (string-append out "/" python-bindings)))))
          (add-after 'install-docs 'wrap-programs
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (for-each (lambda (prog)
-- 
2.28.0
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Marius Bakke wrote on 10 Nov 2020 22:10
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87k0usdijq.fsf@gnu.org
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Prafulla Giri <pratheblackdiamond@gmail.com> writes:

Toggle quote (13 lines)
> Esteemed maintainers,
>
> Attached is an updated version of the patch.
>
> I have removed the native-search-paths specification of PYTHONPATH. I have
> also created a new output "python" that contains the python bindings. A new
> phase
> has been added that splits the python bindings into it's own separate
> output. With that, users who only want to use gnucash programmatically can
> use it with `guix environment --ad-hoc python gnucash:python`.
>
> Please do let me know if there are any further corrections that I can make.

Looks great to me. Applied, thanks!
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Prafulla Giri wrote on 11 Nov 2020 10:26
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(name . Marius Bakke)(address . marius@gnu.org)(address . 44309-done@debbugs.gnu.org)
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Thank you!

On Wed, Nov 11, 2020 at 2:55 AM Marius Bakke <marius@gnu.org> wrote:

Toggle quote (21 lines)
> Prafulla Giri <pratheblackdiamond@gmail.com> writes:
>
> > Esteemed maintainers,
> >
> > Attached is an updated version of the patch.
> >
> > I have removed the native-search-paths specification of PYTHONPATH. I
> have
> > also created a new output "python" that contains the python bindings. A
> new
> > phase
> > has been added that splits the python bindings into it's own separate
> > output. With that, users who only want to use gnucash programmatically
> can
> > use it with `guix environment --ad-hoc python gnucash:python`.
> >
> > Please do let me know if there are any further corrections that I can
> make.
>
> Looks great to me. Applied, thanks!
>
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