[PR PATCH] pipewire: assure rw permissions in run directories in case its missing

[avinashkrishna07 <avinashkrishna07@users.noreply.github.com>]

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There is a new pull request by avinashkrishna07 against master on the void-packages repository

https://github.com/avinashkrishna07/void-packages master
https://github.com/void-linux/void-packages/pull/38376

pipewire: assure rw permissions in run directories in case its missing
Sometimes `/run/pulse` has `rwx------` permission somehow due to old pulseaudio package if installed.

This was causing `pactl info` return

```
Connection failure: Connection refused
pa_context_connect() failed: Connection refused
```

and applets showing `No audio devices`...

Because users in group `_pipewire` were not able to read/open the directory.  This PR would ensure that it has 755 permissions if the directory already exists and not readable by `_pipewire` group.


#### Testing the changes
- I tested the changes in this PR: **YES**


A patch file from https://github.com/void-linux/void-packages/pull/38376.patch is attached

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From 494365db1b4243f689af9a273065155d45607e40 Mon Sep 17 00:00:00 2001
From: avinashkrishna07 <krishnaavinash98@gmail.com>
Date: Sat, 30 Jul 2022 22:59:54 +0530
Subject: [PATCH] pipewire: assure rw permissions in run directories in case
 its missing

---
 srcpkgs/pipewire/files/pipewire-pulse/run | 1 +
 1 file changed, 1 insertion(+)

diff --git a/srcpkgs/pipewire/files/pipewire-pulse/run b/srcpkgs/pipewire/files/pipewire-pulse/run
index ea0520e44cd2..66d88e84aeb6 100644
--- a/srcpkgs/pipewire/files/pipewire-pulse/run
+++ b/srcpkgs/pipewire/files/pipewire-pulse/run
@@ -2,6 +2,7 @@
 # this service is experimental and most setups should start pipewire as a user,
 # for further information, please refer to the handbook
 ! [ -d /run/pulse ] && install -m 755 -g _pipewire -o _pipewire -d /run/pulse
+[ $(stat -c %a /run/pulse) -ne 755 ] && chmod 755 /run/pulse
 umask 002
 export PULSE_RUNTIME_PATH=/run/pulse
 exec chpst -u _pipewire:_pipewire pipewire-pulse