react-native/scripts/validate-ios-test-env.sh

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#!/bin/bash
# This script validates that iOS is set up correctly for the
# testing environment.
#
# In particular, it checks that the minimum required Xcode version is installed.
# It also checks that the correct Node version is installed. Node 10 is not fully
# supported at the time and Node 6 is no longer supported.
# Function used to compare dot seperated version numbers
function version_gt() { test "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$1"; }
# Check that node is installed.
if [ -z "$(which node)" ]; then
echo "Could not find Node binary. Please check your nodejs install."
echo "See http://facebook.github.io/react-native/docs/getting-started.html for instructions."
exit 1
fi
# Check that the correct version of node is installed
NODE_VERSION="$(command node --version | sed 's/[-/a-zA-Z]//g' |sed 's/.\{2\}$//')"
if (( $(echo "${NODE_VERSION} <= 6.0" | bc -l) )); then
echo "Node ${NODE_VERSION} detected. This version of Node is not supported."
echo "Note: Node 10 is not fully supported at the time and Node 6 is no longer supported."
echo "See https://nodejs.org/en/download/ for instructions."
exit 1
fi
if (( $(echo "${NODE_VERSION} == 10.0" | bc -l) )); then
echo "Node ${NODE_VERSION} detected. This version of Node is not fully supported at this time."
echo "See https://github.com/facebook/react-native/issues/19229 for more information."
exit 1
fi
# Check that Xcode is installed.
if [ -z "$(which xcodebuild)" ]; then
echo "Could not find Xcode build tools. Please check your Xcode install."
echo "See http://facebook.github.io/react-native/docs/getting-started.html for instructions."
exit 1
fi
MIN_XCODE_VERSION=9.4
# Check that the correct version of Xcode is installed
XCODE_VERSION="$(command xcodebuild -version | sed '$ d' | sed 's/[-/a-zA-Z]//g')"
if (version_gt $MIN_XCODE_VERSION $XCODE_VERSION) && [ "$XCODE_VERSION" != "$MIN_XCODE_VERSION" ]; then
echo "Xcode ${XCODE_VERSION} detected. React Native requires ${MIN_XCODE_VERSION} or newer."
echo "Older versions of Xcode may cause cryptic build errors."
echo "See http://facebook.github.io/react-native/docs/getting-started.html for instructions."
exit 1
fi