Add a timeout to installing php dependencies on macos

The recent concurrent downloader leads to infinite runtime on certain setup-php runs

Author: shivammathur

src/scripts/darwin.sh

@@ -181,11 +181,13 @@ add_php() {
   fi
   if [[ "$existing_version" != "false" && -z "$suffix" ]]; then
     if [ "$action" = "upgrade" ]; then
+      brew_retry 3 install --only-dependencies "$php_formula" 2>/dev/null || true
       brew upgrade -f --overwrite "$php_formula"
     else
       brew unlink "$php_keg"
     fi
   else
+    brew_retry 3 install --only-dependencies "$php_formula" 2>/dev/null || true
     brew install -f --overwrite "$php_formula" || brew upgrade -f --overwrite "$php_formula"
   fi
   sudo chown -R "$(id -un)":"$(id -gn)" "$brew_prefix"

src/scripts/tools/brew.sh

@@ -55,6 +55,39 @@ add_brew() {
   add_brew_bins_to_path "$brew_prefix"
 }
 
+# Function to run brew with retries and timeout.
+brew_retry() {
+  local timeout=300
+  local max_tries=${1:-5}
+  shift
+  local tries=0
+  while :; do
+    tries=$((tries + 1))
+    sudo rm -rf "$brew_prefix"/var/homebrew/locks/*
+    brew "$@" &
+    local cmd_pid=$!
+    (
+      sleep "$timeout"
+      if kill -0 "$cmd_pid" 2>/dev/null; then
+        echo "Timed out after ${timeout}s, killing brew (pid $cmd_pid)"
+        kill -TERM "$cmd_pid" 2>/dev/null
+      fi
+    ) &
+    local killer_pid=$!
+    wait "$cmd_pid"
+    local status=$?
+    kill -TERM "$killer_pid" 2>/dev/null
+    if [[ $status -eq 0 ]]; then
+      return 0
+    fi
+    if (( tries >= max_tries )); then
+      echo "brew command failed after $tries tries (last status $status)"
+      return "$status"
+    fi
+    echo "brew exited with status $status, retrying..."
+  done
+}
+
 # Function to configure brew constants.
 configure_brew() {
   brew_path="$(command -v brew)"