GNU bug report logs - #44730
[GAJIM]: Fix loading of installed plugins

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From: Tobias Geerinckx-Rice <me <at> tobias.gr>
To: Raghav Gururajan <rg <at> raghavgururajan.name>
Cc: julien <at> lepiller.eu, 44730 <at> debbugs.gnu.org
Subject: [bug#44730] [GAJIM]: Fix loading of installed plugins
Date: Thu, 19 Nov 2020 15:44:31 +0100

[Message part 1 (text/plain, inline)]

Hullo Raghav!

Thanks for taking care of Gajim.

Raghav Gururajan 写道：
> fix plugins issue in Gajim.

Please provide more information: what was wrong with the original 
code, and why and how will your patch fix it?  It's better to put 
this in the commit message itself (above the change log), not just 
the cover letter (your mail).  No more than a few lines.

The more clear your explanation, the faster the fix can be 
reviewed and merged.

I assume that the problem is the empty ‘Plugins’ list when I run:

 $ guix environment guix \
   -- ./pre-inst-env guix environment \
   --pure --ad-hoc gajim{,-openpgp,-omemo} \
   -- gajim

However, the fix doesn't look right to me.

After applying your patch, Gajim is broken.  Menus don't work.

--8<---------------cut here---------------start------------->8---
Traceback (most recent call last):
 File 
 "/gnu/store/zd02xplbafrmzs2swrj3r3zx1hrsvg4y-gajim-1.2.2/lib/python3.8/site-packages/gajim/application.py", 
 line 222, in _activate
   self.interface.run(self)
 File 
 "/gnu/store/zd02xplbafrmzs2swrj3r3zx1hrsvg4y-gajim-1.2.2/lib/python3.8/site-packages/gajim/gui_interface.py", 
 line 1965, in run
   app.plugin_manager = plugins.PluginManager()
 File 
 "/gnu/store/zd02xplbafrmzs2swrj3r3zx1hrsvg4y-gajim-1.2.2/lib/python3.8/site-packages/gajim/common/helpers.py", 
 line 1002, in __call__
   cls._instances[cls] = super(Singleton, cls).__call__(
 File 
 "/gnu/store/zd02xplbafrmzs2swrj3r3zx1hrsvg4y-gajim-1.2.2/lib/python3.8/site-packages/gajim/plugins/pluginmanager.py", 
 line 224, in __init__
   self._load_plugins()
 File 
 "/gnu/store/zd02xplbafrmzs2swrj3r3zx1hrsvg4y-gajim-1.2.2/lib/python3.8/site-packages/gajim/plugins/pluginmanager.py", 
 line 668, in _load_plugins
   for plugin_dir in configpaths.get_plugin_dirs():
 File 
 "/gnu/store/zd02xplbafrmzs2swrj3r3zx1hrsvg4y-gajim-1.2.2/lib/python3.8/site-packages/gajim/common/configpaths.py", 
 line 50, in get_plugin_dirs
   Path(os.getenv['PLUGINS_OS']),
--8<---------------cut here---------------end--------------->8---

I wrote my own patch (attached; no, I don't speak much Python).  I 
think it fixes the problem but I can't test it.

[0001-gnu-gajim-Honour-GAJIM_PLUGIN_PATH.patch (text/x-patch, inline)]

From 866593af88993ab5068f165b1284b8b4cb32e04e Mon Sep 17 00:00:00 2001
From: Tobias Geerinckx-Rice <me <at> tobias.gr>
Date: Thu, 19 Nov 2020 15:20:14 +0100
Subject: [PATCH] gnu: gajim: Honour $GAJIM_PLUGIN_PATH.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This perhaps fixes <http://issues.guix.gnu.org/44730> maybe.

* gnu/packages/messaging.scm (gajim)[arguments]: Replace the
‘add-plugin-dirs’ substitution phase with a...
[source]: ...patch that won't silently break in the future.
* gnu/packages/patches/gajim-honour-GAJIM_PLUGIN_PATH.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
---
 gnu/local.mk                                        |  1 +
 gnu/packages/messaging.scm                          | 13 ++-----------
 .../patches/gajim-honour-GAJIM_PLUGIN_PATH.patch    | 11 +++++++++++
 3 files changed, 14 insertions(+), 11 deletions(-)
 create mode 100644 gnu/packages/patches/gajim-honour-GAJIM_PLUGIN_PATH.patch

diff --git a/gnu/local.mk b/gnu/local.mk
index a1da838aee..e728ed28d1 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -990,6 +990,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/freedink-engine-fix-sdl-hints.patch	\
   %D%/packages/patches/freeimage-unbundle.patch		\
   %D%/packages/patches/fuse-overlapping-headers.patch				\
+  %D%/packages/patches/gajim-honour-GAJIM_PLUGIN_PATH.patch	\
   %D%/packages/patches/ganeti-deterministic-manual.patch	\
   %D%/packages/patches/ganeti-disable-version-symlinks.patch	\
   %D%/packages/patches/ganeti-drbd-compat.patch			\
diff --git a/gnu/packages/messaging.scm b/gnu/packages/messaging.scm
index 624ad72c23..99131dcf05 100644
--- a/gnu/packages/messaging.scm
+++ b/gnu/packages/messaging.scm
@@ -743,7 +743,8 @@ of xmpppy.")
                        (version-major+minor version)
                        "/gajim-" version ".tar.gz"))
        (sha256
-        (base32 "1gfcp3b5nq43xxz5my8vfhfxnnli726j3hzcgwh9fzrzzd9ic3gx"))))
+        (base32 "1gfcp3b5nq43xxz5my8vfhfxnnli726j3hzcgwh9fzrzzd9ic3gx"))
+       (patches (search-patches "gajim-honour-GAJIM_PLUGIN_PATH.patch"))))
     (build-system python-build-system)
     (arguments
      `(#:imported-modules
@@ -756,16 +757,6 @@ of xmpppy.")
         (guix build utils))
        #:phases
        (modify-phases %standard-phases
-         (add-after 'unpack 'add-plugin-dirs
-           (lambda _
-             (substitute* "gajim/common/configpaths.py"
-               (("_paths\\['PLUGINS_USER'\\]\\]")
-                "_paths['PLUGINS_USER']] + \
-([os.getenv('GAJIM_PLUGIN_PATH')] \
-if os.getenv('GAJIM_PLUGIN_PATH') \
-and Path(os.getenv('GAJIM_PLUGIN_PATH')).is_dir() \
-else [])"))
-             #t))
          (replace 'check
            (lambda _
              ;; Tests require a running X server.
diff --git a/gnu/packages/patches/gajim-honour-GAJIM_PLUGIN_PATH.patch b/gnu/packages/patches/gajim-honour-GAJIM_PLUGIN_PATH.patch
new file mode 100644
index 0000000000..cb3313197c
--- /dev/null
+++ b/gnu/packages/patches/gajim-honour-GAJIM_PLUGIN_PATH.patch
@@ -0,0 +1,11 @@
+--- a/gajim/common/configpaths.py	2020-11-19 12:12:02.004414323 +0100
++++ a/gajim/common/configpaths.py	2020-11-19 15:34:52.211476895 +0100
+@@ -47,7 +47,7 @@
+         return [Path(_paths['PLUGINS_BASE']),
+                 Path('/app/plugins')]
+     return [Path(_paths['PLUGINS_BASE']),
+-            Path(_paths['PLUGINS_USER'])]
++            Path(_paths['PLUGINS_USER'])] + ([Path(os.getenv('GAJIM_PLUGIN_PATH'))] if os.getenv('GAJIM_PLUGIN_PATH') and Path(os.getenv('GAJIM_PLUGIN_PATH')).is_dir() else [])
+ 
+ 
+ def get_paths(type_: PathType) -> Generator[str, None, None]:
-- 
2.29.2

[Message part 3 (text/plain, inline)]

The plug-ins are found, but won't load with my version of Gajim.

--8<---------------cut here---------------start------------->8---
11/19/20 15:10:01 (W) gajim.plugin_system        Plugin omemo not 
loaded, newer version of gajim required: 1.2.91 <= 1.2.2 <= 1.3.90
11/19/20 15:10:01 (W) gajim.plugin_system        Plugin openpgp 
not loaded, newer version of gajim required: 1.2.91 <= 1.2.2 <= 
1.3.90
--8<---------------cut here---------------end--------------->8---

This is on current master.  How are these plug-ins expected to be 
used?

> -       (variable "GAJIM_PLUGIN_PATH")
> +       (variable "PLUGINS_OS")

This doesn't look related to the fix at hand.

Why remove GAJIM_?
Why rename _PATH?
TBH, both strike me as unnecessary regressions.

Kind regards,

T G-R

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