initial commit

scripts/00-preflight.sh

@@ -0,0 +1,50 @@
+#!/usr/bin/env bash
+# Stage 00 — sanity checks, mirror refresh, pacman quality-of-life.
+source "$(dirname "${BASH_SOURCE[0]}")/lib.sh"
+
+log "Preflight"
+
+require_arch
+require_not_root
+require_sudo
+
+step "checking network connectivity"
+if ! ping -c1 -W3 archlinux.org >/dev/null 2>&1; then
+  warn "cannot reach archlinux.org — package installation will fail"
+  confirm "continue anyway?" || die "aborted"
+else
+  ok "network reachable"
+fi
+
+# --- pacman.conf niceties --------------------------------------------------
+step "enabling pacman colour output + parallel downloads"
+if [[ "$DRY_RUN" != "1" ]]; then
+  sudo sed -i \
+    -e 's/^#\(Color\)$/\1/' \
+    -e 's/^#\(VerbosePkgLists\)$/\1/' \
+    -e 's/^#\?ParallelDownloads.*/ParallelDownloads = 8/' \
+    /etc/pacman.conf
+  grep -q '^ParallelDownloads' /etc/pacman.conf || \
+    sudo sed -i '/^\[options\]/a ParallelDownloads = 8' /etc/pacman.conf
+fi
+ok "pacman.conf tuned"
+
+# --- multilib (optional, off by default) ----------------------------------
+if [[ "${ENABLE_MULTILIB:-0}" == "1" ]]; then
+  step "enabling [multilib]"
+  run sudo sed -i '/^#\[multilib\]$/,+1 s/^#//' /etc/pacman.conf
+fi
+
+# --- mirrors ---------------------------------------------------------------
+if have reflector; then
+  step "refreshing mirrorlist with reflector (this can take a minute)"
+  run sudo reflector --protocol https --latest 20 --sort rate \
+      --save /etc/pacman.d/mirrorlist || warn "reflector failed; keeping existing mirrorlist"
+else
+  skip "reflector not installed yet — mirrors will be refreshed on the next run"
+fi
+
+step "synchronising package databases"
+run sudo pacman -Syu --noconfirm
+
+ok "preflight complete"