feat: Rewrite build script with cache management

Author: Hayao0819

alteriso/build.sh

@@ -1,8 +1,29 @@
 #!/usr/bin/env bash
 
 set -Eeuo pipefail
+
 script_path=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
-rm -rf "$script_path/out"
-profile_dir="${1-""${script_path}/configs/xfce""}"
-"$script_path/gen.sh" "$profile_dir"
-sudo ../archiso/mkarchiso -v -w "$script_path/work" -o "$script_path/out" "$script_path/out/$(basename "$profile_dir")"
+if [[ -n "${1-""}" ]]; then
+    profile_dir="${1-"${script_path}/configs/xfce"}"
+    shift 1
+fi
+work_dir="$script_path/work"
+cache_dir="$work_dir/alteriso_cache"
+
+mkdir -p "$work_dir/archiso"
+mkdir -p "$cache_dir"
+
+# Generate archiso profile
+"$script_path/gen.sh" -o "$work_dir/profile" "$profile_dir"
+
+sudo ALTERISO_PACMAN_CACHE="$cache_dir" \
+    ../archiso/mkarchiso -v \
+    -w "$work_dir/archiso" \
+    -o "$script_path/out" \
+    "$work_dir/profile"
+
+# sudo ../archiso/mkarchiso \
+#     -v \
+#     -w "$work_dir/archiso" \
+#     -o "$script_path/out" \
+#     "$work_dir/profile"

alteriso/clean.sh

@@ -13,4 +13,4 @@ fi
 mount | cut -d ' ' -f 3 | grep "$script_path/work" | sort -r | xargs -r umount -lf || true
 
 # Clean
-rm -rf "$script_path/work" "$script_path/out"
+rm -rf "$script_path/work"

alteriso/gen.sh

@@ -5,5 +5,4 @@ script_path=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
 exec go run "$script_path/src" profile \
     --bootloaders "$script_path/bootloaders/" \
     --modules "$script_path/modules/" \
-    generate \
-    -o "$script_path/out" "$@"
+    generate "$@"

alteriso/src/internal/archiso/injects/injecter.sh

@@ -62,3 +62,16 @@ __alteriso_make_version() {
 post__make_version() {
     __alteriso_make_version
 }
+
+# Inject pacman cache directory into pacman.conf
+pre__make_pacman_conf() {
+    [[ -n "${ALTERISO_PACMAN_CACHE-""}" ]] || return 0
+
+    local __alteriso_cachedir="$ALTERISO_PACMAN_CACHE"
+    local __alteriso_pacman_conf="$work_dir/alteriso_pacman.conf"
+
+    pacman-conf -c "$pacman_conf" \
+        | sed -e "s|^CacheDir = .*|CacheDir = $__alteriso_cachedir|" \
+            >"$__alteriso_pacman_conf"
+    pacman_conf="$__alteriso_pacman_conf"
+}