[PATCH container 06/21] setup: use parse_os_release from PVE::Systemd

[Shannon Sterz <s.sterz@proxmox.com>]

this was moved to PVE::Systemd to make the parse more re-usable and
avoid multiple implementations.

Signed-off-by: Shannon Sterz <s.sterz@proxmox.com>
---
 src/PVE/LXC/Setup.pm | 35 ++---------------------------------
 1 file changed, 2 insertions(+), 33 deletions(-)

diff --git a/src/PVE/LXC/Setup.pm b/src/PVE/LXC/Setup.pm
index d936af2..c8c036d 100644
--- a/src/PVE/LXC/Setup.pm
+++ b/src/PVE/LXC/Setup.pm
@@ -7,6 +7,7 @@ use POSIX;
 use Cwd 'abs_path';
 
 use PVE::RESTEnvironment;
+use PVE::Systemd;
 use PVE::Tools;
 
 use PVE::LXC::Setup::Alpine;
@@ -335,38 +336,6 @@ sub unified_cgroupv2_support {
     return $self->{plugin}->unified_cgroupv2_support($self->get_ct_init_path());
 }
 
-# os-release(5):
-#   (...) a newline-separated list of environment-like shell-compatible
-#   variable assignments. (...) beyond mere variable assignments, no shell
-#   features are supported (this means variable expansion is explicitly not
-#   supported) (...). Variable assignment values must be enclosed in double or
-#   single quotes *if* they include spaces, semicolons or other special
-#   characters outside of A-Z, a-z, 0-9. Shell special characters ("$", quotes,
-#   backslash, backtick) must be escaped with backslashes (...). All strings
-#   should be in UTF-8 format, and non-printable characters should not be used.
-#   It is not supported to concatenate multiple individually quoted strings.
-#   Lines beginning with "#" shall be ignored as comments.
-my $parse_os_release = sub {
-    my ($data) = @_;
-    my $variables = {};
-    while (defined($data) && $data =~ /^(.+)$/gm) {
-        next if $1 !~ /^\s*([a-zA-Z_][a-zA-Z0-9_]*)=(.*)$/;
-        my ($var, $content) = ($1, $2);
-        chomp $content;
-
-        if ($content =~ /^'([^']*)'/) {
-            $variables->{$var} = $1;
-        } elsif ($content =~ /^"((?:[^"\\]|\\.)*)"/) {
-            my $s = $1;
-            $s =~ s/(\\["'`nt\$\\])/"\"$1\""/eeg;
-            $variables->{$var} = $s;
-        } elsif ($content =~ /^([A-Za-z0-9]*)/) {
-            $variables->{$var} = $1;
-        }
-    }
-    return $variables;
-};
-
 sub get_ct_os_release {
     my ($self) = @_;
 
@@ -379,7 +348,7 @@ sub get_ct_os_release {
         return undef;
     });
 
-    return &$parse_os_release($data);
+    return PVE::Systemd::parse_os_release($data);
 }
 
 # Checks whether /sbin/init is a symlink, and if it is, resolves it to the actual binary
-- 
2.47.3