Configure AeroCore image mirrors

Add build-time mirror configuration for Flatpak and Homebrew, expose the related build args, and install an AeroCore-owned profile script to load mirror environment files. Rename the mirror configuration files from the Bazzite-prefixed names to AeroCore-prefixed names while keeping the upstream Bazzite helper reference intact.

Verification: bash -n system_files/etc/profile.d/aerocore-mirrors.sh && bash -n build_files/build.sh

1 files changed, 28 insertions, 0 deletions

diff --git a/system_files/etc/profile.d/aerocore-mirrors.sh b/system_files/etc/profile.d/aerocore-mirrors.sh
new file mode 100644
index 0000000..e9b93ab
--- /dev/null
+++ b/system_files/etc/profile.d/aerocore-mirrors.sh
@@ -0,0 +1,28 @@
+#!/usr/bin/bash
+
+[[ -r /usr/libexec/bazzite-mirror-utils.sh ]] && source /usr/libexec/bazzite-mirror-utils.sh
+
+if ! declare -F is_valid_mirror_url >/dev/null; then
+    is_valid_mirror_url() {
+        [[ "$1" =~ ^https?://[^[:space:]]+$ ]]
+    }
+fi
+
+load_mirror_file() {
+    local file="$1"
+    [[ -r "$file" ]] || return
+
+    while IFS='=' read -r key value; do
+        [[ -z "$key" || "${key:0:1}" == "#" ]] && continue
+        case "$key" in
+            FLATPAK_REMOTE_URL|HOMEBREW_BOTTLE_DOMAIN|HOMEBREW_API_DOMAIN)
+                if is_valid_mirror_url "$value"; then
+                    export "$key"="$value"
+                fi
+                ;;
+        esac
+done <"$file"
+}
+
+load_mirror_file /etc/environment.d/99-aerocore-mirrors.conf
+load_mirror_file "$HOME/.config/environment.d/99-aerocore-mirrors.conf"