Re-use Node path resolution script

Summary:
This fix is ported from 0.64-stable. It moves the Node resolution script from react-native-xcode.sh to find-node.sh for re-use in the codegen.

Changelog: [Codegen][Internal]

Reviewed By: fkgozali

Differential Revision: D27437216

fbshipit-source-id: ecb8a7a30411a709c095a0a34115b6dc48b99f1e

package.json

@@ -38,6 +38,7 @@
     "README.md",
     "rn-get-polyfills.js",
     "scripts/compose-source-maps.js",
+    "scripts/find-node.sh",
     "scripts/generate-specs.sh",
     "scripts/generate-specs-cli.js",
     "scripts/ios-configure-glog.sh",

scripts/find-node.sh

@@ -0,0 +1,33 @@
+#!/bin/bash
+# Copyright (c) Facebook, Inc. and its affiliates.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+
+set -e
+
+# Define NVM_DIR and source the nvm.sh setup script
+[ -z "$NVM_DIR" ] && export NVM_DIR="$HOME/.nvm"
+
+if [[ -s "$HOME/.nvm/nvm.sh" ]]; then
+  # shellcheck source=/dev/null
+  . "$HOME/.nvm/nvm.sh"
+elif [[ -x "$(command -v brew)" && -s "$(brew --prefix nvm)/nvm.sh" ]]; then
+  # shellcheck source=/dev/null
+  . "$(brew --prefix nvm)/nvm.sh"
+fi
+
+# Set up the nodenv node version manager if present
+if [[ -x "$HOME/.nodenv/bin/nodenv" ]]; then
+  eval "$("$HOME/.nodenv/bin/nodenv" init -)"
+elif [[ -x "$(command -v brew)" && -x "$(brew --prefix nodenv)/bin/nodenv" ]]; then
+  eval "$("$(brew --prefix nodenv)/bin/nodenv" init -)"
+fi
+
+# Set up the ndenv of anyenv if preset
+if [[ ! -x node && -d ${HOME}/.anyenv/bin ]]; then
+  export PATH=${HOME}/.anyenv/bin:${PATH}
+  if [[ "$(anyenv envs | grep -c ndenv )" -eq 1 ]]; then
+    eval "$(anyenv init -)"
+  fi
+fi

scripts/generate-specs.sh

@@ -30,6 +30,10 @@ RN_DIR=$(cd "$THIS_DIR/.." && pwd)
 NODE_BINARY="${NODE_BINARY:-$(command -v node || true)}"
 USE_FABRIC="${USE_FABRIC:-0}"
 
+# Find path to Node
+# shellcheck source=/dev/null
+source "$RN_DIR/scripts/find-node.sh"
+
 cleanup () {
   set +e
   rm -rf "$TEMP_DIR"
@@ -56,7 +60,7 @@ main() {
   CODEGEN_REPO_PATH="$RN_DIR/packages/react-native-codegen"
   CODEGEN_NPM_PATH="$RN_DIR/../react-native-codegen"
 
-if [ -z "$NODE_BINARY" ]; then
+  if [ -z "$NODE_BINARY" ]; then
     echo "Error: Could not find node. Make sure it is in bash PATH or set the NODE_BINARY environment variable." 1>&2
     exit 1
   fi
@@ -75,11 +79,6 @@ if [ -z "$NODE_BINARY" ]; then
     bash "$CODEGEN_PATH/scripts/oss/build.sh"
   fi
 
-  if [ -z "$NODE_BINARY" ]; then
-    echo "Error: Could not find node. Make sure it is in bash PATH or set the NODE_BINARY environment variable." 1>&2
-    exit 1
-  fi
-
   describe "Generating schema from flow types"
   "$NODE_BINARY" "$CODEGEN_PATH/lib/cli/combine/combine-js-to-schema-cli.js" "$SCHEMA_FILE" "$SRCS_DIR"
 

scripts/react-native-xcode.sh

@@ -64,9 +64,6 @@ PROJECT_ROOT=${PROJECT_ROOT:-"$REACT_NATIVE_DIR/../.."}
 
 cd "$PROJECT_ROOT" || exit
 
-# Define NVM_DIR and source the nvm.sh setup script
-[ -z "$NVM_DIR" ] && export NVM_DIR="$HOME/.nvm"
-
 # Define entry file
 if [[ "$ENTRY_FILE" ]]; then
   # Use ENTRY_FILE defined by user
@@ -82,26 +79,9 @@ if [[ $DEV != true && ! -f "$ENTRY_FILE" ]]; then
   exit 2
 fi
 
-if [[ -s "$HOME/.nvm/nvm.sh" ]]; then
-  . "$HOME/.nvm/nvm.sh"
-elif [[ -x "$(command -v brew)" && -s "$(brew --prefix nvm)/nvm.sh" ]]; then
-  . "$(brew --prefix nvm)/nvm.sh"
-fi
-
-# Set up the nodenv node version manager if present
-if [[ -x "$HOME/.nodenv/bin/nodenv" ]]; then
-  eval "$("$HOME/.nodenv/bin/nodenv" init -)"
-elif [[ -x "$(command -v brew)" && -x "$(brew --prefix nodenv)/bin/nodenv" ]]; then
-  eval "$("$(brew --prefix nodenv)/bin/nodenv" init -)"
-fi
-
-# Set up the ndenv of anyenv if preset
-if [[ ! -x node && -d ${HOME}/.anyenv/bin ]]; then
-  export PATH=${HOME}/.anyenv/bin:${PATH}
-  if [[ "$(anyenv envs | grep -c ndenv )" -eq 1 ]]; then
-    eval "$(anyenv init -)"
-  fi
-fi
+# Find path to Node
+# shellcheck source=/dev/null
+source "$RN_DIR/scripts/find-node.sh"
 
 # check and assign NODE_BINARY env
 # shellcheck source=/dev/null