#!/usr/bin/env bash # find-filename-conflicts - Finds cpp files with conflicting filenames # Copyright (C) 2020 Keyboard.io, Inc. # # This program is free software: you can redistribute it and/or modify it under # the terms of the GNU General Public License as published by the Free Software # Foundation, version 3. # # This program is distributed in the hope that it will be useful, but WITHOUT # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS # FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. # # You should have received a copy of the GNU General Public License along with # this program. If not, see <http://www.gnu.org/licenses/>. ## When building Kaleidoscope, the compiled object files are linked together ## into a static archive. This static archive has a very simple structure, and ## only stores filenames, not paths, not even relative ones. As such, we can't ## have files with the same name, because they will conflict, and one will ## override the other. ## ## To avoid this situation, this script will find all cpp source files (we don't ## need to care about header-only things, those do not result in an object ## file), and will comb through them to find conflicting filenames. ## ## If a conflict is found, it will print all files that share the name, and will ## exit with an error at the end. It does not exit at the first duplicate, but ## will find and print all of them. ## ## If no conflict is found, the script just prints its status message and exits ## with zero. set -e FILE_LIST="$(find src -name '*.cpp' | sed -e 's,\(\(.*\)/\([^/]*\)\),\3 \1,')" exit_code=0 echo -n "Looking for conflicting filenames... " for f in $(echo "${FILE_LIST}" | cut -f1 -d" "); do count=$(echo "${FILE_LIST}" | grep -c "^${f}") if [ "$count" -gt 1 ]; then echo >&2 echo " Conflict found for ${f}: " >&2 echo "${FILE_LIST}" | grep "${f}" | cut -d" " -f2 | sed -e 's,^, ,' >&2 exit_code=1 fi done if [ "${exit_code}" -eq 0 ]; then echo "done." fi exit ${exit_code}