PKGBUILD and makepkg: "warning: directory permissions differ" - setup.py

Question

Providing --root to setup.py like:
package() {
cd "$srcdir"/"$_gitname"
python3 setup.py install --prefix=$pkgdir/usr --root=$pkgdir
}
with the following setup.py file:
import DistUtilsExtra.auto
DistUtilsExtra.auto.setup(
name='alsacontrol',
version='0.1.0',
description='ALSA configuration interface',
license='GPL-3.0',
)
in a PKGBUILD file produces the following error:
warning: directory permissions differ on /mnt/data/
filesystem: 700 package: 755
when makepkg -is is used.

Answer 1

Here are file permissions with --root and --prefix:
➜ alsa-control pwd
/mnt/data/Code/alsacontrol-aur/pkg/alsa-control
➜ alsa-control ls -lha
total 80K
drwxr-xr-x 4 mango mango 4.0K Sep 15 00:50 .
drwxr-xr-x 3 mango mango 4.0K Sep 15 00:50 ..
-rw-r--r-- 1 mango mango 54K Sep 15 00:50 .BUILDINFO
drwxr-xr-x 3 mango mango 4.0K Sep 15 00:50 mnt
-rw-r--r-- 1 mango mango 3.2K Sep 15 00:50 .MTREE
-rw-r--r-- 1 mango mango 515 Sep 15 00:50 .PKGINFO
drwxr-xr-x 5 root root 4.0K Sep 15 00:50 usr
and here without --root and only --prefix:
➜ alsa-control ls -lha
total 76K
drwxr-xr-x 3 mango mango 4.0K Sep 15 00:52 .
drwxr-xr-x 3 mango mango 4.0K Sep 15 00:52 ..
-rw-r--r-- 1 mango mango 54K Sep 15 00:52 .BUILDINFO
-rw-r--r-- 1 mango mango 3.1K Sep 15 00:52 .MTREE
-rw-r--r-- 1 mango mango 515 Sep 15 00:52 .PKGINFO
drwxr-xr-x 5 mango mango 4.0K Sep 15 00:52 usr
and here with --root, but without --prefix:
➜ alsa-control pwd
/mnt/data/Code/alsacontrol-aur/pkg/alsa-control
➜ alsa-control ls -lha
total 76K
drwxr-xr-x 3 mango mango 4.0K Sep 15 01:06 .
drwxr-xr-x 3 mango mango 4.0K Sep 15 01:06 ..
-rw-r--r-- 1 mango mango 54K Sep 15 01:06 .BUILDINFO
-rw-r--r-- 1 mango mango 3.1K Sep 15 01:06 .MTREE
-rw-r--r-- 1 mango mango 515 Sep 15 01:06 .PKGINFO
drwxr-xr-x 5 mango mango 4.0K Sep 15 01:06 usr
as you can see, combing --root with --prefix does weird stuff.
I kept --root, so that I am able to install files to /etc as well, and removed --prefix in my script:
setup.py:
data_files=[
('share/alsacontrol/', ['data/asoundrc-template']),
('share/applications/', ['data/alsacontrol.desktop']),
('/etc/xdg/autostart/', ['data/alsacontrol-daemon.desktop']),
],
PKGBUILD:
package() {
cd "$srcdir"/"$_gitname"
python3 setup.py install --root=$pkgdir
}