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#!/bin/bash
# XCode will error during it's dependency graph construction (which happens before the build
# stage starts and any target "Run Script" phases are triggered)
#
# In order to avoid this error we need to build the framework before actually getting to the
# build stage so XCode is able to build the dependency graph
#
# XCode's Pre-action scripts don't output anything into XCode so the only way to emit a useful
# error is to return a success status and have the project detect and log the error itself then
# log it, stopping the build at that point
#
# The other step to get this to work properly is to ensure the framework in "Link Binary with
# Libraries" isn't using a relative directory, unfortunately there doesn't seem to be a good
# way to do this directly so we need to modify the '.pbxproj' file directly, updating the
# framework entry to have the following (on a single line):
# {
# isa = PBXFileReference;
# explicitFileType = wrapper.xcframework;
# includeInIndex = 0;
# path = "{FRAMEWORK NAME GOES HERE}";
# sourceTree = BUILD_DIR;
# };
# Need to set the path or we won't find cmake
PATH = ${ PATH } :/usr/local/bin:/opt/homebrew/bin:/sbin/md5
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# Ensure the build directory exists (in case we need it before XCode creates it)
mkdir -p " ${ TARGET_BUILD_DIR } "
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# Remove any old build errors
rm -rf " ${ TARGET_BUILD_DIR } /libsession_util_error.log "
# First ensure cmake is installed (store the error in a log and exit with a success status - xcode will output the error)
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echo "info: Validating build requirements"
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if ! which cmake > /dev/null; then
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touch " ${ TARGET_BUILD_DIR } /libsession_util_error.log "
echo "error: cmake is required to build, please install (can install via homebrew with 'brew install cmake')."
echo "error: cmake is required to build, please install (can install via homebrew with 'brew install cmake')." > " ${ TARGET_BUILD_DIR } /libsession_util_error.log "
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exit 0
fi
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if [ ! -d " ${ SRCROOT } /LibSession-Util " ] || [ ! -d " ${ SRCROOT } /LibSession-Util/src " ] ; then
touch " ${ TARGET_BUILD_DIR } /libsession_util_error.log "
echo "error: Need to fetch LibSession-Util submodule."
echo "error: Need to fetch LibSession-Util submodule." > " ${ TARGET_BUILD_DIR } /libsession_util_error.log "
exit 1
fi
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# Generate a hash of the libSession-util source files and check if they differ from the last hash
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echo "info: Checking for changes to source"
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NEW_SOURCE_HASH = $( find " ${ SRCROOT } /LibSession-Util/src " -type f -exec md5 { } + | awk '{print $NF}' | sort | md5 | awk '{print $NF}' )
NEW_HEADER_HASH = $( find " ${ SRCROOT } /LibSession-Util/include " -type f -exec md5 { } + | awk '{print $NF}' | sort | md5 | awk '{print $NF}' )
if [ -f " ${ TARGET_BUILD_DIR } /libsession_util_source_hash.log " ] ; then
read -r OLD_SOURCE_HASH < " ${ TARGET_BUILD_DIR } /libsession_util_source_hash.log "
fi
if [ -f " ${ TARGET_BUILD_DIR } /libsession_util_header_hash.log " ] ; then
read -r OLD_HEADER_HASH < " ${ TARGET_BUILD_DIR } /libsession_util_header_hash.log "
fi
if [ -f " ${ TARGET_BUILD_DIR } /libsession_util_archs.log " ] ; then
read -r OLD_ARCHS < " ${ TARGET_BUILD_DIR } /libsession_util_archs.log "
fi
# Start the libSession-util build if it doesn't already exists
if [ " ${ NEW_SOURCE_HASH } " != " ${ OLD_SOURCE_HASH } " ] || [ " ${ NEW_HEADER_HASH } " != " ${ OLD_HEADER_HASH } " ] || [ " ${ ARCHS [*] } " != " ${ OLD_ARCHS } " ] || [ ! -d " ${ TARGET_BUILD_DIR } /libsession-util.xcframework " ] ; then
echo "info: Build is not up-to-date - creating new build"
echo ""
# Remove any existing build files (just to be safe)
rm -rf " ${ TARGET_BUILD_DIR } /libsession-util.a "
rm -rf " ${ TARGET_BUILD_DIR } /libsession-util.xcframework "
rm -rf " ${ BUILD_DIR } /libsession-util.xcframework "
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# Trigger the new build
cd " ${ SRCROOT } /LibSession-Util "
result = $( ./utils/ios.sh "libsession-util" false )
if [ $? -ne 0 ] ; then
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touch " ${ TARGET_BUILD_DIR } /libsession_util_error.log "
echo " error: Failed to build libsession-util (See details in ' ${ TARGET_BUILD_DIR } /pre-action-output.log'). "
echo " error: Failed to build libsession-util (See details in ' ${ TARGET_BUILD_DIR } /pre-action-output.log'). " > " ${ TARGET_BUILD_DIR } /libsession_util_error.log "
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exit 0
fi
# Save the updated source hash to disk to prevent rebuilds when there were no changes
echo " ${ NEW_SOURCE_HASH } " > " ${ TARGET_BUILD_DIR } /libsession_util_source_hash.log "
echo " ${ NEW_HEADER_HASH } " > " ${ TARGET_BUILD_DIR } /libsession_util_header_hash.log "
echo " ${ ARCHS [*] } " > " ${ TARGET_BUILD_DIR } /libsession_util_archs.log "
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echo ""
echo "info: Build complete"
else
echo "info: Build is up-to-date"
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fi
# Move the target-specific libSession-util build to the parent build directory (so XCode can have a reference to a single build)
rm -rf " ${ BUILD_DIR } /libsession-util.xcframework "
cp -r " ${ TARGET_BUILD_DIR } /libsession-util.xcframework " " ${ BUILD_DIR } /libsession-util.xcframework "