06116bd15b
Ported update_pch.sh to Python with improved performance and features. The new script is invoked from the same update_pch.sh which calls it for each library in parallel, although it can be invoked directly. The ported script (update_pch) updates all PCH files in ~15 seconds where the old script took ~4500 seconds. In addition, the new script supports 3-tiered headers (system, module, and local) and is very flexible to support other improvement. It has a per-library optimal configuration settings that can be updated using another new scripts (update_pch_autotune.sh) which finds optimal per-PCH settings. PCH files have been generated using the new scripts which builds significantly faster (2-3x, depending on module and configuration) and the intermediate binaries are noticably smaller (by several GBs). The new script stamps each generated PCH file with the command that generated it to make it trivial for users to update them, and also adds the command to invoke another script (update_pch_bisect) that helps find missing headers or conflicting headers that may break the build after updating the PCH. Finally update_pch has built-in unit-tests for makefile parsing and other core functionality. Change-Id: Ib933b50e50374d7e2e7e3e95ba8799b0cc8a27fa Reviewed-on: https://gerrit.libreoffice.org/19965 Tested-by: Jenkins <ci@libreoffice.org> Reviewed-by: Caolán McNamara <caolanm@redhat.com> Tested-by: Caolán McNamara <caolanm@redhat.com>
51 lines
1.3 KiB
Bash
Executable file
51 lines
1.3 KiB
Bash
Executable file
#! /bin/bash
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#
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# This file is part of the LibreOffice project.
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#
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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#
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# Usage: update_pch.sh [<module>/inc/pch/precompiled_xxx.hxx]
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# Usage: update_pch.sh [<module>]
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# Invoke: make cmd cmd="./bin/update_pch.sh [..]"
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root=`dirname $0`
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root=`cd $root/.. && pwd`
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cd $root
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if test -z "$1"; then
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headers=`ls ./*/inc/pch/precompiled_*.hxx`
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else
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headers="$@"
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fi
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# Split the headers into an array.
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IFS=' ' read -a aheaders <<< $headers
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hlen=${#aheaders[@]};
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if [ $hlen -gt 1 ]; then
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if [ -z "$PARALLELISM" ]; then
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PARALLELISM=0 # Let xargs decide
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fi
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echo $headers | xargs -n 1 -P $PARALLELISM $0
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exit $?
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fi
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for x in $headers; do
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if [ -d "$x" ]; then
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# We got a directory, find pch files to update.
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headers=`find $root/$x/ -type f -iname "precompiled_*.hxx"`
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$0 "$headers"
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else
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header=$x
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echo updating `echo $header | sed -e s%$root/%%`
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module=`readlink -f $header | sed -e s%$root/%% -e s%/.*%%`
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libname=`echo $header | sed -e s/.*precompiled_// -e s/\.hxx//`
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./bin/update_pch "$module" "$libname"
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fi
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done
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#echo Done.
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exit 0
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