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# project-detection.sh
#
# Copyright The Mbed TLS Contributors
# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
#
# Purpose
#
# This script contains functions for shell scripts to
# help detect which project (Mbed TLS, TF-PSA-Crypto)
# or which Mbed TLS branch they are in.
# Project detection.
#
# Both Mbed TLS and TF-PSA-Cryto repos have a "scripts/project_name.txt" file
# which contains the name of the project. They are used in scripts to know in
# which project/folder we're in.
# This function accepts 2 parameters:
# - $1: boolean value which defines the behavior in case
# "scripts/project_name.txt" is not found:
# - 1: exit with error message
# - 0: simply return an error
# - $2: mandatory value which defined the root folder where to look for
# "scripts/project_name.txt".
read_project_name_file () {
EXIT_IF_NOT_FOUND=$1
ROOT_PATH=$2
PROJECT_NAME_FILE="scripts/project_name.txt"
# Check if file exists.
if [ ! -f "$ROOT_PATH/$PROJECT_NAME_FILE" ]; then
if $EXIT_IF_NOT_FOUND ; then
echo "$ROOT_PATH/$PROJECT_NAME_FILE does not exist... Exiting..." >&2
exit 1
fi
# Simply return a failure in case we were asked not to fail in case of
# missing file.
return 1
fi
if read -r PROJECT_NAME < "$ROOT_PATH/$PROJECT_NAME_FILE"; then :; else
return 1
fi
}
# Check if the current folder is the Mbed TLS root one.
#
# Warning: if this is not run from Mbed TLS/TF-PSA-Crypto root folder, the
# script is terminated with a failure.
in_mbedtls_repo () {
read_project_name_file true .
test "$PROJECT_NAME" = "Mbed TLS"
}
# Check if the current folder is the TF-PSA-Crypto root one.
#
# Warning: if this is not run from Mbed TLS/TF-PSA-Crypto root folder, the
# script is terminated with a failure.
in_tf_psa_crypto_repo () {
read_project_name_file true .
test "$PROJECT_NAME" = "TF-PSA-Crypto"
}
# Check if $1 is an Mbed TLS root folder.
#
# Differently from in_mbedtls_repo() above, this can be run on any folder
# without causing the script to exit.
is_mbedtls_root() {
if ! read_project_name_file false $1 ; then
return 1
fi
test "$PROJECT_NAME" = "Mbed TLS"
}
# Check if $1 is a TF-PSA-Crypto root folder.
#
# Differently from in_tf_psa_crypto_repo() above, this can be run on any folder
# without causing the script to exit.
is_tf_psa_crypto_root() {
if ! read_project_name_file false $1 ; then
return 1
fi
test "$PROJECT_NAME" = "TF-PSA-Crypto"
}
#Branch detection
read_build_info () {
SCRIPT_DIR=$(pwd)
BUILD_INFO_FILE="include/mbedtls/build_info.h"
if [ ! -f "$BUILD_INFO_FILE" ]; then
echo "File $BUILD_INFO_FILE not found."
exit 1
fi
MBEDTLS_VERSION_MAJOR=$(grep "^#define MBEDTLS_VERSION_MAJOR" "$BUILD_INFO_FILE" | awk '{print $3}')
MBEDTLS_VERSION_MINOR=$(grep "^#define MBEDTLS_VERSION_MINOR" "$BUILD_INFO_FILE" | awk '{print $3}')
if [ -z "$MBEDTLS_VERSION_MAJOR" ]; then
echo "MBEDTLS_VERSION_MAJOR not found in $BUILD_INFO_FILE."
exit 1
fi
if [ -z "$MBEDTLS_VERSION_MINOR" ]; then
echo "MBEDTLS_VERSION_MINOR not found in $BUILD_INFO_FILE."
exit 1
fi
}
in_3_6_branch () {
read_build_info
test $MBEDTLS_VERSION_MAJOR = "3" && test $MBEDTLS_VERSION_MINOR = "6"
}
in_4_x_branch () {
read_build_info
test $MBEDTLS_VERSION_MAJOR = "4"
}
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