1#! /usr/bin/env sh 2 3# Copyright The Mbed TLS Contributors 4# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later 5# 6# Purpose 7# 8# Check if generated files are up-to-date. 9 10set -eu 11 12if [ $# -ne 0 ] && [ "$1" = "--help" ]; then 13 cat <<EOF 14$0 [-u] 15This script checks that all generated file are up-to-date. If some aren't, by 16default the scripts reports it and exits in error; with the -u option, it just 17updates them instead. 18 19 -u Update the files rather than return an error for out-of-date files. 20EOF 21 exit 22fi 23 24if [ -d library -a -d include -a -d tests ]; then :; else 25 echo "Must be run from Mbed TLS root" >&2 26 exit 1 27fi 28 29UPDATE= 30if [ $# -ne 0 ] && [ "$1" = "-u" ]; then 31 shift 32 UPDATE='y' 33fi 34 35# check SCRIPT FILENAME[...] 36# check SCRIPT DIRECTORY 37# Run SCRIPT and check that it does not modify any of the specified files. 38# In the first form, there can be any number of FILENAMEs, which must be 39# regular files. 40# In the second form, there must be a single DIRECTORY, standing for the 41# list of files in the directory. Running SCRIPT must not modify any file 42# in the directory and must not add or remove files either. 43# If $UPDATE is empty, abort with an error status if a file is modified. 44check() 45{ 46 SCRIPT=$1 47 shift 48 49 directory= 50 if [ -d "$1" ]; then 51 directory="$1" 52 set -- "$1"/* 53 fi 54 55 for FILE in "$@"; do 56 cp -p "$FILE" "$FILE.bak" 57 done 58 59 "$SCRIPT" 60 61 # Compare the script output to the old files and remove backups 62 for FILE in "$@"; do 63 if diff "$FILE" "$FILE.bak" >/dev/null 2>&1; then 64 # Move the original file back so that $FILE's timestamp doesn't 65 # change (avoids spurious rebuilds with make). 66 mv "$FILE.bak" "$FILE" 67 else 68 echo "'$FILE' was either modified or deleted by '$SCRIPT'" 69 if [ -z "$UPDATE" ]; then 70 exit 1 71 else 72 rm "$FILE.bak" 73 fi 74 fi 75 done 76 77 if [ -n "$directory" ]; then 78 old_list="$*" 79 set -- "$directory"/* 80 new_list="$*" 81 # Check if there are any new files 82 if [ "$old_list" != "$new_list" ]; then 83 echo "Files were deleted or created by '$SCRIPT'" 84 echo "Before: $old_list" 85 echo "After: $new_list" 86 if [ -z "$UPDATE" ]; then 87 exit 1 88 fi 89 fi 90 fi 91} 92 93# Note: if the format of calls to the "check" function changes, update 94# scripts/code_style.py accordingly. For generated C source files (*.h or *.c), 95# the format must be "check SCRIPT FILENAME...". For other source files, 96# any shell syntax is permitted (including e.g. command substitution). 97 98check scripts/generate_errors.pl library/error.c 99check scripts/generate_query_config.pl programs/test/query_config.c 100check scripts/generate_features.pl library/version_features.c 101check scripts/generate_visualc_files.pl visualc/VS2010 102check scripts/generate_psa_constants.py programs/psa/psa_constant_names_generated.c 103check tests/scripts/generate_bignum_tests.py $(tests/scripts/generate_bignum_tests.py --list) 104check tests/scripts/generate_psa_tests.py $(tests/scripts/generate_psa_tests.py --list) 105