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345 lines
8.0 KiB
345 lines
8.0 KiB
#!/bin/bash
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KEEP_FILES=0
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ECHO_COMMANDS=0
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RUN_SCRIPT=0
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DIRECTORY=.
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OUTPUT_DIRECTORY=
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KEEP_GITFILES=0
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DEBUG=0
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if [[ $# = 0 ]]; then
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set -- '-h'
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fi
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while (( $# )); do
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case "$1" in
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-d|--directory)
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shift
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DIRECTORY=$1 # source directory
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shift
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;;
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-o|--output)
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shift
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OUTPUT_DIRECTORY=$1
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shift
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;;
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--debug)
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shift
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DEBUG=1
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;;
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-r|--run)
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shift
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RUN_SCRIPT=1
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;;
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-e|--echo)
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shift
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ECHO_COMMANDS=1
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;;
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-k|--keep)
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shift
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KEEP_FILES=1
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;;
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-g|--git)
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shift
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KEEP_GITFILES=1
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;;
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-h|--help)
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shift
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fmt=" %-31s%s\n"
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printf "%s" "Usage: $(basename ${BASH_SOURCE[0]}) [OPTION?]"
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printf "\n"
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printf "\nThis is a custom pre-processor designed to remove unused flexipatch patches and create a final build."
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printf "\n\n"
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printf "$fmt" "-r, --run" "include this flag to confirm that you really do want to run this script"
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printf "\n"
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printf "$fmt" "-d, --directory <dir>" "the flexipatch source directory to process (defaults to current directory)"
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printf "$fmt" "-o, --output <dir>" "the output directory to store the processed files"
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printf "$fmt" "-h, --help" "display this help section"
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printf "$fmt" "-k, --keep" "keep temporary files and do not replace the original ones"
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printf "$fmt" "-g, --git" "keep .git files"
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printf "$fmt" "-e, --echo" "echo commands that will be run rather than running them"
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printf "$fmt" " --debug" "prints additional debug information to stderr"
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printf "\nWarning! This script alters and removes files within the source directory."
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printf "\nWarning! This process is irreversible! Use with care. Do make a backup before running this."
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printf "\n\n"
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exit
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;;
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*)
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echo "Ignoring unknown argument ($1)"
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shift
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;;
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esac
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done
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if [[ $RUN_SCRIPT = 0 ]]; then
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echo "Re-run this command with the --run option to confirm that you really want to run this script."
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echo "The changes this script makes are irreversible."
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exit 1
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fi
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if [[ -z ${OUTPUT_DIRECTORY} ]]; then
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echo "Output directory not specified, see -o"
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exit 1
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fi
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DIRECTORY=$(readlink -f "${DIRECTORY}")
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OUTPUT_DIRECTORY=$(readlink -f "${OUTPUT_DIRECTORY}")
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if [[ $DIRECTORY != $OUTPUT_DIRECTORY ]]; then
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mkdir -p "${OUTPUT_DIRECTORY}"
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cp -r -f "${DIRECTORY}/." -t "${OUTPUT_DIRECTORY}"
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DIRECTORY=${OUTPUT_DIRECTORY}
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fi
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if [[ ! -e ${DIRECTORY}/patches.h ]]; then
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printf "No patches.h file found. Make sure you run this script within a flexipatch source directory."
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exit 1
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fi
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FILES_TO_DELETE=$(find $DIRECTORY -name "*.c" -o -name "*.h" | awk -v DEBUG="$DEBUG" -v DIRECTORY="$DIRECTORY" '
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function istrue(f) {
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ret = 0
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for ( i = 2; i in f; i++ ) {
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if ( f[i] == "||" ) {
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if ( ret == -1 ) {
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ret = 0
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} else if ( ret == 1 ) {
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break
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}
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continue
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} else if ( f[i] == "&&" ) {
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if ( ret == 0 ) {
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ret = -1
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}
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continue
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} else if ( ret == -1 ) {
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continue
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} else if ( f[i] !~ /_(PATCH|LAYOUT)$/ ) {
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ret = 1
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} else if ( f[i] ~ /^!/ ) {
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ret = !patches[substr(f[i],2)]
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} else {
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ret = patches[f[i]]
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}
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}
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if ( ret == -1 ) {
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ret = 0
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}
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return ret
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}
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function schedule_delete(file) {
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# Skip duplicates
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for ( i = 1; i in files_to_delete; i++ ) {
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if ( files_to_delete[i] == file) {
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return
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}
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}
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if (DEBUG) {
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print "Scheduling file " file " for deletion." > "/dev/stderr"
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}
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files_to_delete[i] = file
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}
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function is_flexipatch(patch) {
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return patch ~ /_(PATCH|LAYOUT)$/
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}
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BEGIN {
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# Read patches.h and store patch settings in the patches associative array
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if (DEBUG) {
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print "Reading file " DIRECTORY "/patches.h" > "/dev/stderr"
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}
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while (( getline line < (DIRECTORY"/patches.h") ) > 0 ) {
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split(line,f)
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if ( f[1] ~ /^#define$/ ) {
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if ( f[3] == 0 || f[3] == 1 ) {
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patches[f[2]] = f[3]
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} else {
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patches[f[2]] = istrue(f)
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}
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if (DEBUG) {
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print "Found " f[2] " = " patches[f[2]] > "/dev/stderr"
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}
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}
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}
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files_to_delete[0] = ""
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}
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{
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level = 0
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do_print[level] = 1
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has_printed[level] = 0
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condition[level] = ""
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while (( getline line < $0) > 0 ) {
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split(line,f)
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if ( f[1] ~ /^#if$/ ) {
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level++;
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do_print[level] = do_print[level-1]
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has_printed[level] = 0
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condition[level] = f[2]
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if ( do_print[level] ) {
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if ( istrue(f) ) {
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has_printed[level] = 1
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do_print[level] = 1
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} else {
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do_print[level] = 0
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}
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}
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if ( is_flexipatch(condition[level]) ) {
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continue
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}
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} else if ( f[1] ~ /^#ifdef$/ || f[1] ~ /^#ifndef$/ ) {
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level++;
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do_print[level] = do_print[level-1]
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has_printed[level] = 0
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condition[level] = f[2]
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if ( do_print[level] ) {
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has_printed[level] = 1
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do_print[level] = 1
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}
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if ( is_flexipatch(condition[level]) ) {
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continue
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}
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} else if ( f[1] ~ /^#elif$/ ) {
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if ( (!is_flexipatch(condition[level]) || has_printed[level] == 0) && do_print[level-1] == 1 ) {
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if ( istrue(f) ) {
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has_printed[level] = 1
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do_print[level] = 1
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} else {
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do_print[level] = 0
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}
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} else {
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do_print[level] = 0
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}
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if ( is_flexipatch(f[2]) ) {
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continue
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}
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} else if ( f[1] ~ /^#else$/ ) {
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if ( (!is_flexipatch(condition[level]) || has_printed[level] == 0) && do_print[level-1] == 1 ) {
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has_printed[level] = 1
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do_print[level] = 1
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} else {
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do_print[level] = 0
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}
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if ( is_flexipatch(condition[level]) ) {
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continue
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}
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} else if ( f[1] ~ /^#include$/ && f[2] ~ /^"/ && (do_print[level] == 0 || f[2] == "\"patches.h\"") ) {
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dir = ""
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if ( $0 ~ /\// ) {
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dir = $0
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sub("/[^/]+$", "/", dir)
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}
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schedule_delete(dir substr(f[2], 2, length(f[2]) - 2))
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continue
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} else if ( f[1] ~ /^#endif$/ ) {
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if ( is_flexipatch(condition[level]) ) {
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level--
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continue
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}
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level--
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}
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if ( do_print[level] ) {
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print line > $0 ".~"
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}
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}
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}
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END {
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for ( i = 1; i in files_to_delete; i++ ) {
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print files_to_delete[i]
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}
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}
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')
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# Chmod and replace files
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for FILE in $(find $DIRECTORY -name "*.~"); do
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chmod --reference=${FILE%%.~} ${FILE}
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if [[ $KEEP_FILES = 0 ]] || [[ $ECHO_COMMANDS = 1 ]]; then
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if [[ $ECHO_COMMANDS = 1 ]]; then
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echo "mv ${FILE} ${FILE%%.~}"
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else
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mv ${FILE} ${FILE%%.~}
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fi
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fi
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done
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# Delete unnecessary files
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if [[ $KEEP_FILES = 0 ]] || [[ $ECHO_COMMANDS = 1 ]]; then
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# Remove dwmc shell script if patch not enabled
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if [[ -f ${DIRECTORY}/patch/dwmc ]] && [[ $(grep -cE '^#define DWMC_PATCH +0 *$' ${DIRECTORY}/patches.h) > 0 ]]; then
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if [[ $ECHO_COMMANDS = 1 ]]; then
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echo "rm ${DIRECTORY}/patch/dwmc"
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echo "sed -r -i -e '/cp -f patch\/dwmc/d' \"${DIRECTORY}/Makefile\""
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else
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rm "${DIRECTORY}/patch/dwmc"
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sed -r -i -e '/cp -f patch\/dwmc/d' "${DIRECTORY}/Makefile"
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fi
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fi
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# Remove layoutmenu.sh shell script if patch not enabled
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if [[ -f ${DIRECTORY}/patch/layoutmenu.sh ]] && [[ $(grep -cE '^#define BAR_LAYOUTMENU_PATCH +0 *$' ${DIRECTORY}/patches.h) > 0 ]]; then
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if [[ $ECHO_COMMANDS = 1 ]]; then
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echo "rm ${DIRECTORY}/patch/layoutmenu.sh"
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else
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rm "${DIRECTORY}/patch/layoutmenu.sh"
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fi
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fi
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for FILE in $FILES_TO_DELETE ${DIRECTORY}/patches.def.h; do
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if [[ $ECHO_COMMANDS = 1 ]]; then
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echo "rm $FILE"
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else
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rm "$FILE"
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fi
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done
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if [[ -f $DIRECTORY/README.md ]]; then
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if [[ $ECHO_COMMANDS = 1 ]]; then
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echo "rm $DIRECTORY/README.md"
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else
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rm $DIRECTORY/README.md
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fi
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fi
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if [[ $KEEP_GITFILES = 0 ]]; then
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rm -rf $DIRECTORY/.git*
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fi
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# Remove empty include files
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INCLUDE_RE='*patch/*include.[hc]'
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if [[ $ECHO_COMMANDS = 1 ]]; then
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INCLUDE_RE='*patch/*include.[hc][.]~'
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fi
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for FILE in $(find $DIRECTORY -path "$INCLUDE_RE"); do
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if [[ $(grep -c "#include " $FILE) = 0 ]]; then
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if [[ $ECHO_COMMANDS = 1 ]]; then
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echo "rm ${FILE%%.~}"
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else
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rm "$FILE"
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fi
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for LINE in $(grep -Ern "#include \"patch/$(basename ${FILE%%.~})\"" $DIRECTORY | grep -v '.~:' | awk -F":" '{print $1 ":" $2 }'); do
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INCFILE=$(echo $LINE | cut -d":" -f1)
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LINE_NO=$(echo $LINE | cut -d":" -f2)
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if [[ $ECHO_COMMANDS = 1 ]]; then
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echo "sed -i \"${LINE_NO}d\" ${INCFILE}"
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else
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sed -i "${LINE_NO}d" ${INCFILE}
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fi
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done
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fi
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done
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fi
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# Clean up the Makefile
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sed -r -i -e 's/ patches.h$//' -e '/^patches.h:$/{N;N;d;}' "${DIRECTORY}/Makefile"
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