From 6631521d9f45b73f9b4df76db9148d82af8d57b9 Mon Sep 17 00:00:00 2001
From: Craig Jennings <c@cjennings.net>
Date: Mon, 23 Feb 2026 11:54:25 -0600
Subject: refactor: rename custom/ to installer/ for clarity

The custom/ directory name was an archiso implementation detail. Renamed
to installer/ which clearly communicates that this directory contains the
installer scripts and utilities that ship on the ISO.

Updated all references in build.sh, Makefile, test-install.sh, and README.
---
 installer/lib/config.sh | 131 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 131 insertions(+)
 create mode 100644 installer/lib/config.sh

(limited to 'installer/lib/config.sh')

diff --git a/installer/lib/config.sh b/installer/lib/config.sh
new file mode 100644
index 0000000..358a5f4
--- /dev/null
+++ b/installer/lib/config.sh
@@ -0,0 +1,131 @@
+#!/usr/bin/env bash
+# config.sh - Configuration and argument handling for archangel installer
+# Source this file after common.sh
+
+#############################
+# Global Config Variables
+#############################
+
+CONFIG_FILE=""
+UNATTENDED=false
+
+# These get populated by config file or interactive prompts
+FILESYSTEM=""           # "zfs" or "btrfs"
+HOSTNAME=""
+TIMEZONE=""
+LOCALE=""
+KEYMAP=""
+SELECTED_DISKS=()
+RAID_LEVEL=""
+WIFI_SSID=""
+WIFI_PASSWORD=""
+ENCRYPTION_ENABLED=false
+ZFS_PASSPHRASE=""
+LUKS_PASSPHRASE=""
+ROOT_PASSWORD=""
+SSH_ENABLED=false
+SSH_KEY=""
+
+#############################
+# Argument Parsing
+#############################
+
+parse_args() {
+    while [[ $# -gt 0 ]]; do
+        case "$1" in
+            --config-file)
+                if [[ -n "$2" && ! "$2" =~ ^- ]]; then
+                    CONFIG_FILE="$2"
+                    shift 2
+                else
+                    error "--config-file requires a path argument"
+                fi
+                ;;
+            --help|-h)
+                show_usage
+                exit 0
+                ;;
+            *)
+                error "Unknown option: $1 (use --help for usage)"
+                ;;
+        esac
+    done
+}
+
+show_usage() {
+    cat <<EOF
+Usage: archangel [OPTIONS]
+
+Arch Linux installer with ZFS/Btrfs support and snapshot management.
+
+Options:
+  --config-file PATH  Use config file for unattended installation
+  --help, -h          Show this help message
+
+Without --config-file, runs in interactive mode.
+See /root/archangel.conf.example for a config template.
+EOF
+}
+
+#############################
+# Config File Loading
+#############################
+
+load_config() {
+    local config_path="$1"
+
+    if [[ ! -f "$config_path" ]]; then
+        error "Config file not found: $config_path"
+    fi
+
+    info "Loading config from: $config_path"
+
+    # Source the config file (it's just key=value pairs)
+    # shellcheck disable=SC1090
+    source "$config_path"
+
+    # Convert DISKS from comma-separated string to array
+    if [[ -n "$DISKS" ]]; then
+        IFS=',' read -ra SELECTED_DISKS <<< "$DISKS"
+    fi
+
+    UNATTENDED=true
+    info "Running in unattended mode"
+}
+
+check_config() {
+    # Only use config when explicitly specified with --config-file
+    # This prevents accidental disk destruction from an unnoticed config file
+    if [[ -n "$CONFIG_FILE" ]]; then
+        load_config "$CONFIG_FILE"
+    fi
+}
+
+#############################
+# Config Validation
+#############################
+
+validate_config() {
+    local errors=0
+
+    [[ -z "$HOSTNAME" ]] && { warn "HOSTNAME not set"; ((errors++)); }
+    [[ -z "$TIMEZONE" ]] && { warn "TIMEZONE not set"; ((errors++)); }
+    [[ ${#SELECTED_DISKS[@]} -eq 0 ]] && { warn "No disks selected"; ((errors++)); }
+    [[ -z "$ROOT_PASSWORD" ]] && { warn "ROOT_PASSWORD not set"; ((errors++)); }
+
+    # Validate disks exist
+    for disk in "${SELECTED_DISKS[@]}"; do
+        [[ -b "$disk" ]] || { warn "Disk not found: $disk"; ((errors++)); }
+    done
+
+    # Validate timezone
+    if [[ -n "$TIMEZONE" && ! -f "/usr/share/zoneinfo/$TIMEZONE" ]]; then
+        warn "Invalid timezone: $TIMEZONE"
+        ((errors++))
+    fi
+
+    if [[ $errors -gt 0 ]]; then
+        error "Config validation failed with $errors error(s)"
+    fi
+    info "Config validation passed"
+}
-- 
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