Refactor extension functions to add_extensions scripts

src/scripts/extensions/firebird.sh

@@ -0,0 +1,39 @@
+add_firebird_client_darwin() {
+  firebird_tag='R3_0_7'
+  pkg_name=$(get -s -n "" https://github.com/FirebirdSQL/firebird/releases/tag/"$firebird_tag" | grep -Eo "Firebird-.*.pkg" | head -n 1)
+  get -q -e "/tmp/firebird.pkg" https://github.com/FirebirdSQL/firebird/releases/download/"$firebird_tag"/"$pkg_name"
+  sudo installer -pkg /tmp/firebird.pkg -target /
+  sudo mkdir -p /opt/firebird/include /opt/firebird/lib
+  sudo find /Library/Frameworks/Firebird.framework -name '*.h' -exec cp "{}" /opt/firebird/include \;
+  sudo find /Library/Frameworks/Firebird.framework -name '*.dylib' -exec cp "{}" /opt/firebird/lib \;
+}
+
+add_firebird_helper() {
+  firebird_dir=$1
+  tag="$(php_src_tag)"
+  export PDO_FIREBIRD_CONFIGURE_OPTS="--with-pdo-firebird=$firebird_dir"
+  export PDO_FIREBIRD_LINUX_LIBS="firebird-dev"
+  export PDO_FIREBIRD_PATH="ext/pdo_firebird"
+  add_extension_from_source pdo_firebird https://github.com php php-src "$tag" extension get
+}
+
+add_firebird() {
+  if [ "$(uname -s )" = "Darwin" ]; then
+    add_firebird_client_darwin >/dev/null 2>&1
+  fi
+  enable_extension pdo_firebird extension
+  status="Enabled"
+  if ! check_extension pdo_firebird; then
+    status="Installed and enabled"
+    if [ "$(uname -s)" = "Linux" ]; then
+      if [[ "${version:?}" =~ 5.3|${nightly_versions:?} ]]; then
+        add_firebird_helper /usr >/dev/null 2>&1
+      else
+        add_pdo_extension firebird >/dev/null 2>&1
+      fi
+    else
+      add_firebird_helper /opt/firebird >/dev/null 2>&1
+    fi
+  fi
+  add_extension_log pdo_firebird "$status"
+}