1#!/bin/bash
2# Copyright (c) Meta Platforms, Inc. and affiliates.
3#
4# This source code is licensed under the MIT license found in the
5# LICENSE file in the root directory of this source tree.
6
7# Bundle React Native app's code and image assets.
8# This script is supposed to be invoked as part of Xcode build process
9# and relies on environment variables (including PWD) set by Xcode
10
11# Print commands before executing them (useful for troubleshooting)
12set -x
13DEST=$CONFIGURATION_BUILD_DIR/$UNLOCALIZED_RESOURCES_FOLDER_PATH
14
15# Enables iOS devices to get the IP address of the machine running Metro
16if [[ "$CONFIGURATION" = *Debug* && ! "$PLATFORM_NAME" == *simulator ]]; then
17  for num in 0 1 2 3 4 5 6 7 8; do
18    IP=$(ipconfig getifaddr en${num})
19    if [ ! -z "$IP" ]; then
20      break
21    fi
22  done
23  if [ -z "$IP" ]; then
24    IP=$(ifconfig | grep 'inet ' | grep -v ' 127.' | grep -v ' 169.254.' |cut -d\   -f2  | awk 'NR==1{print $1}')
25  fi
26
27  echo "$IP" > "$DEST/ip.txt"
28fi
29
30if [[ "$SKIP_BUNDLING" ]]; then
31  echo "SKIP_BUNDLING enabled; skipping."
32  exit 0;
33fi
34
35case "$CONFIGURATION" in
36  *Debug*)
37    if [[ "$PLATFORM_NAME" == *simulator ]]; then
38      if [[ "$FORCE_BUNDLING" ]]; then
39        echo "FORCE_BUNDLING enabled; continuing to bundle."
40      else
41        echo "Skipping bundling in Debug for the Simulator (since the packager bundles for you). Use the FORCE_BUNDLING flag to change this behavior."
42        exit 0;
43      fi
44    else
45      echo "Bundling for physical device. Use the SKIP_BUNDLING flag to change this behavior."
46    fi
47
48    DEV=true
49    ;;
50  "")
51    echo "$0 must be invoked by Xcode"
52    exit 1
53    ;;
54  *)
55    DEV=false
56    ;;
57esac
58
59# Path to react-native folder inside node_modules
60REACT_NATIVE_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
61# The project should be located next to where react-native is installed
62# in node_modules.
63PROJECT_ROOT=${PROJECT_ROOT:-"$REACT_NATIVE_DIR/../.."}
64
65cd "$PROJECT_ROOT" || exit
66
67# Define entry file
68if [[ "$ENTRY_FILE" ]]; then
69  # Use ENTRY_FILE defined by user
70  :
71elif [[ -s "index.ios.js" ]]; then
72  ENTRY_FILE=${1:-index.ios.js}
73else
74  ENTRY_FILE=${1:-index.js}
75fi
76
77# check and assign NODE_BINARY env
78# shellcheck source=/dev/null
79source "$REACT_NATIVE_DIR/scripts/node-binary.sh"
80
81HERMES_ENGINE_PATH="$PODS_ROOT/hermes-engine"
82[ -z "$HERMES_CLI_PATH" ] && HERMES_CLI_PATH="$HERMES_ENGINE_PATH/destroot/bin/hermesc"
83
84# Hermes is enabled in new projects by default, so we cannot assume that USE_HERMES=1 is set as an envvar.
85# If hermes-engine is found in Pods, we can assume Hermes has not been disabled.
86# If hermesc is not available and USE_HERMES is either unset or true, show error.
87if [[  -f "$HERMES_ENGINE_PATH" && ! -f "$HERMES_CLI_PATH" ]]; then
88  echo "error: Hermes is enabled but the hermesc binary could not be found at ${HERMES_CLI_PATH}." \
89       "Perhaps you need to run 'bundle exec pod install' or otherwise " \
90       "point the HERMES_CLI_PATH variable to your custom location." >&2
91  exit 2
92fi
93
94[ -z "$NODE_ARGS" ] && export NODE_ARGS=""
95
96[ -z "$CLI_PATH" ] && export CLI_PATH="$REACT_NATIVE_DIR/cli.js"
97
98[ -z "$BUNDLE_COMMAND" ] && BUNDLE_COMMAND="bundle"
99
100[ -z "$COMPOSE_SOURCEMAP_PATH" ] && COMPOSE_SOURCEMAP_PATH="$REACT_NATIVE_DIR/scripts/compose-source-maps.js"
101
102if [[ -z "$BUNDLE_CONFIG" ]]; then
103  CONFIG_ARG=""
104else
105  CONFIG_ARG="--config $BUNDLE_CONFIG"
106fi
107
108BUNDLE_FILE="$CONFIGURATION_BUILD_DIR/main.jsbundle"
109
110EXTRA_ARGS=
111
112case "$PLATFORM_NAME" in
113  "macosx")
114    BUNDLE_PLATFORM="macos"
115    ;;
116  *)
117    BUNDLE_PLATFORM="ios"
118    ;;
119esac
120
121if [ "${IS_MACCATALYST}" = "YES" ]; then
122  BUNDLE_PLATFORM="ios"
123fi
124
125EMIT_SOURCEMAP=
126if [[ ! -z "$SOURCEMAP_FILE" ]]; then
127  EMIT_SOURCEMAP=true
128fi
129
130PACKAGER_SOURCEMAP_FILE=
131if [[ $EMIT_SOURCEMAP == true ]]; then
132  if [[ $USE_HERMES == true ]]; then
133    PACKAGER_SOURCEMAP_FILE="$CONFIGURATION_BUILD_DIR/$(basename $SOURCEMAP_FILE)"
134  else
135    PACKAGER_SOURCEMAP_FILE="$SOURCEMAP_FILE"
136  fi
137  EXTRA_ARGS="$EXTRA_ARGS --sourcemap-output $PACKAGER_SOURCEMAP_FILE"
138fi
139
140# Hermes doesn't require JS minification.
141if [[ $USE_HERMES == true && $DEV == false ]]; then
142  EXTRA_ARGS="$EXTRA_ARGS --minify false"
143fi
144
145"$NODE_BINARY" $NODE_ARGS "$CLI_PATH" $BUNDLE_COMMAND \
146  $CONFIG_ARG \
147  --entry-file "$ENTRY_FILE" \
148  --platform "$BUNDLE_PLATFORM" \
149  --dev $DEV \
150  --reset-cache \
151  --bundle-output "$BUNDLE_FILE" \
152  --assets-dest "$DEST" \
153  $EXTRA_ARGS \
154  $EXTRA_PACKAGER_ARGS
155
156if [[ $USE_HERMES != true ]]; then
157  cp "$BUNDLE_FILE" "$DEST/"
158  BUNDLE_FILE="$DEST/main.jsbundle"
159else
160  EXTRA_COMPILER_ARGS=
161  if [[ $DEV == true ]]; then
162    EXTRA_COMPILER_ARGS=-Og
163  else
164    EXTRA_COMPILER_ARGS=-O
165  fi
166  if [[ $EMIT_SOURCEMAP == true ]]; then
167    EXTRA_COMPILER_ARGS="$EXTRA_COMPILER_ARGS -output-source-map"
168  fi
169  "$HERMES_CLI_PATH" -emit-binary $EXTRA_COMPILER_ARGS -out "$DEST/main.jsbundle" "$BUNDLE_FILE"
170  if [[ $EMIT_SOURCEMAP == true ]]; then
171    HBC_SOURCEMAP_FILE="$BUNDLE_FILE.map"
172    "$NODE_BINARY" "$COMPOSE_SOURCEMAP_PATH" "$PACKAGER_SOURCEMAP_FILE" "$HBC_SOURCEMAP_FILE" -o "$SOURCEMAP_FILE"
173  fi
174  BUNDLE_FILE="$DEST/main.jsbundle"
175fi
176
177if [[ $DEV != true && ! -f "$BUNDLE_FILE" ]]; then
178  echo "error: File $BUNDLE_FILE does not exist. This must be a bug with React Native, please report it here: https://github.com/facebook/react-native/issues" >&2
179  exit 2
180fi
181