Added a simple INI handler, and a helper function under Installer().configure_nic() to help with nic configuration. Supports a crude DHCP configuration and a minimal static IP handler.

.gitignore

@@ -17,3 +17,5 @@ SAFETY_LOCK
 **/**.pkg.*.xz
 **/**archinstall-*.tar.gz
 **/**.zst
+**/**.network
+**/**.target

archinstall/lib/installer.py

@@ -6,6 +6,7 @@ from .general import *
 from .user_interaction import *
 from .profiles import Profile
 from .mirrors import *
+from .systemd import Networkd
 from .output import log, LOG_LEVELS
 from .storage import storage
 
@@ -149,6 +150,24 @@ class Installer():
 	def arch_chroot(self, cmd, *args, **kwargs):
 		return self.run_command(cmd)
 
+	def configure_nic(self, nic, dhcp=True, ip=None, gateway=None, dns=None, *args, **kwargs):
+		if dhcp:
+			conf = Networkd(Match={"Name": nic}, Network={"DHCP": "yes"})
+		else:
+			assert ip
+
+			network = {"Address": ip}
+			if gateway:
+				network["Gateway"] = gateway
+			if dns:
+				assert type(dns) == list
+				network["DNS"] = dns
+
+			conf = Networkd(Match={"Name": nic}, Network=network)
+		
+		with open(f"{self.mountpoint}/etc/systemd/network/10-{nic}.network", "a") as netconf:
+			netconf.write(str(conf))
+
 	def minimal_installation(self):
 		## Add nessecary packages if encrypting the drive
 		## (encrypted partitions default to btrfs for now, so we need btrfs-progs)

archinstall/lib/systemd.py

@@ -0,0 +1,40 @@
+class Ini():
+	def __init__(self, *args, **kwargs):
+		"""
+		Limited INI handler for now.
+		Supports multiple keywords through dictionary list items.
+		"""
+		self.kwargs = kwargs
+
+	def __str__(self):
+		result = ''
+		first_row_done = False
+		for top_level in self.kwargs:
+			if first_row_done:
+				result += f"\n[{top_level}]\n"
+			else:
+				result += f"[{top_level}]\n"
+				first_row_done = True
+
+			for key, val in self.kwargs[top_level].items():
+				if type(val) == list:
+					for item in val:
+						result += f"{key}={item}\n"
+				else:
+					result += f"{key}={val}\n"
+
+		return result
+
+class Systemd(Ini):
+	def __init__(self, *args, **kwargs):
+		"""
+		Placeholder class to do systemd specific setups.
+		"""
+		super(Systemd, self).__init__(*args, **kwargs)
+
+class Networkd(Systemd):
+	def __init__(self, *args, **kwargs):
+		"""
+		Placeholder class to do systemd-network specific setups.
+		"""
+		super(Networkd, self).__init__(*args, **kwargs)