homebrew-bottles: Workaround for ISP reachable to formulae.brew.sh an…

…d pkg-containers.githubusercontent.com

- Only IPv6 cernet accesses formulae.brew.sh fast
- While only mobile accesses pkg-containers.githubusercontent.com

Allow settings a different ISP besides BIND_ADDRESS for brew.sh.

README.md

@@ -295,6 +295,7 @@ A script for syncing projects (especially AOSP) using Google's `repo` tool.
 | Parameter               | Description                         |
 | ----------------------- | ----------------------------------- |
 | `HOMEBREW_BOTTLES_JOBS` | Parallel jobs. Defaults to `1`      |
+| `BREW_SH_BIND_ADDRESS`  | Bind address for accessing formulae.brew.sh API |
 
 ### julia-storage
 

homebrew-bottles/sync.sh

@@ -14,6 +14,8 @@ CASK_SOURCES=$(mktemp)
 
 curl_init
 
+BOTTLES_BIND_ADDRESS="$BIND_ADDRESS"
+
 # Step 1: Download new API jsons and extract
 
 # 2 special jsons for further processing
@@ -30,6 +32,10 @@ FILES=(
 )
 URL_BASE="https://formulae.brew.sh/api"
 
+if [ -n "$BREW_SH_BIND_ADDRESS" ]; then
+    BIND_ADDRESS="$BREW_SH_BIND_ADDRESS"
+fi
+
 for file in "${FILES[@]}"; do
 	$CURL_WRAP --compressed -sSL -o "$TO/api/$file".tmp "$URL_BASE/$file"
 	if [[ $? -ne 0 ]]; then
@@ -97,6 +103,7 @@ Authorization: Bearer QQ==
 EOF
 
 # parallel downloading
+BIND_ADDRESS="$BOTTLES_BIND_ADDRESS"
 export by_hash=$(realpath $TO/.by-hash)
 export local_dir=$TO
 export CURL_WRAP="$CURL_WRAP --header @$headers_file"