scripts/pull-latest-microg: refactorize; actually make reliable; rename

.gitignore

@@ -1,5 +1,6 @@
 *.apk
 *.zip
+/apk
 /dist
 /logs
 /module-*

README.md

@@ -33,7 +33,8 @@ It requires Magisk to be installed obviously as it's a Magisk module. If you don
 
 0. Use Linux, Mac or WSL on Windows
 1. Install `zip`, `curl`, `jq` if not present
-2. [Download APKs manually](https://microg.org/download.html) and place in `apk/` directory
+2. [Download APKs manually](https://microg.org/download.html) and place in `apk/`
+    - Or run `scripts/download-apks.sh`
 3. Run `scripts/build-noogle-microg.sh`
     - Check `-h` flag for help with build options
     - Module will be created in `dist/`

scripts/build-noogle-microg.sh

@@ -64,7 +64,7 @@ done
 
 apk_count=$(ls "$apk_dir/com.google.android.gms"* "$apk_dir/com.android.vending"* "$apk_dir/com.google.android.gsf"* 2>/dev/null | wc -l)
 if [ "$apk_count" -lt 3 ]; then
-	echo "[E] Missing one or more required APKs in $apk_dir/, download them from https://microg.org/download.html"
+	echo "[E] Missing one or more required APKs in $apk_dir/, use ./download-apks.sh to download them or do it manually"
 	exit 1
 elif [ "$apk_count" -gt 3 ]; then
 	echo "[E] Too many APKs, the $apk_dir/ directory must contain exactly 3 APK files"

scripts/download-apks.sh

@@ -0,0 +1,46 @@
+#!/bin/sh
+
+repo_url=https://microg.org/fdroid/repo
+apk_dir="$(git rev-parse --show-toplevel)/apk"
+wait_time=10
+
+mkdir -p "$apk_dir"
+
+curl -fs "$repo_url"/index-v2.json | jq -r '
+  .packages[] as $pkg | $pkg.versions
+  | to_entries | sort_by(.value.added) | last.value | [ 
+    $pkg.metadata.name["en-US"],
+    .file.name,
+    .file.sha256,
+    .manifest.versionName 
+  ] | @tsv
+' | while IFS=$(printf '\t') read -r name apk sha256 ver; do
+	path="$apk_dir$apk"
+	echo "[I] Latest $name version: $ver"
+	[ -f "$path" ] && echo "$sha256  $path" | sha256sum -c && {
+		echo
+		continue
+	}
+
+	[ "$downloaded" ] && {
+		echo "[I] Waiting for $wait_time seconds to avoid rate limiting..."
+		sleep "$wait_time"
+	}
+
+	rm -f "${path%-*}"* # Remove old versions
+
+	echo "[I] Downloading $name..."
+	until curl -sfL "$repo_url$apk" -o "$path"; do
+		echo "[I] Failed to download $name; retrying in $wait_time seconds..."
+		sleep "$wait_time"
+	done
+	downloaded=1
+
+	echo "$sha256  $path" | sha256sum -c || {
+		echo "[E] Download checksum verification for $path failed! please re-run the script."
+		exit 1
+	}
+	echo
+done
+
+echo "[I] All microG APKs are ready!"