build/lib/functions/compilation/ccache.sh

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#!/usr/bin/env bash
#
# SPDX-License-Identifier: GPL-2.0
#
# Copyright (c) 2013-2023 Igor Pecovnik, igor@armbian.com
#
# This file is a part of the Armbian Build Framework
# https://github.com/armbian/build/
function do_with_ccache_statistics() {
display_alert "Clearing ccache statistics" "ccache" "ccache"
run_host_command_logged ccache --zero-stats
if [[ "${SHOW_CCACHE}" == "yes" ]]; then
# show value of CCACHE_DIR
display_alert "CCACHE_DIR" "${CCACHE_DIR:-"unset"}" "ccache"
display_alert "CCACHE_TEMPDIR" "${CCACHE_TEMPDIR:-"unset"}" "ccache"
# determine what is the actual ccache_dir in use
local ccache_dir_actual
ccache_dir_actual="$(ccache --show-config | grep "cache_dir =" | cut -d "=" -f 2 | xargs echo)"
# calculate the size of that dir, in bytes.
local ccache_dir_size_before ccache_dir_size_after ccache_dir_size_before_human
ccache_dir_size_before="$(du -sb "${ccache_dir_actual}" | cut -f 1)"
ccache_dir_size_before_human="$(numfmt --to=iec-i --suffix=B --format="%.2f" "${ccache_dir_size_before}")"
# show the human-readable size of that dir, before we start.
display_alert "ccache dir size before" "${ccache_dir_size_before_human}" "ccache"
# Show the ccache configuration
wait_for_disk_sync "before ccache config"
display_alert "ccache configuration" "ccache" "ccache"
run_host_command_logged ccache --show-config "&&" sync
fi
display_alert "Running ccache'd build..." "ccache" "ccache"
"$@"
if [[ "${SHOW_CCACHE}" == "yes" ]]; then
display_alert "Display ccache statistics" "ccache" "ccache"
run_host_command_logged ccache --show-stats --verbose
# calculate the size of that dir, in bytes, after the compilation.
ccache_dir_size_after="$(du -sb "${ccache_dir_actual}" | cut -f 1)"
# calculate the difference, in bytes.
local ccache_dir_size_diff
ccache_dir_size_diff="$((ccache_dir_size_after - ccache_dir_size_before))"
# calculate the difference, in human-readable format; numfmt is from coreutils.
local ccache_dir_size_diff_human
ccache_dir_size_diff_human="$(numfmt --to=iec-i --suffix=B --format="%.2f" "${ccache_dir_size_diff}")"
# display the difference
display_alert "ccache dir size change" "${ccache_dir_size_diff_human}" "ccache"
fi
return 0
}