2021-11-30 12:16:14 +01:00
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#! /bin/sh
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#
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# SPDX-FileCopyrightText: 2021 Adriaan de Groot <groot@kde.org>
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# SPDX-License-Identifier: BSD-2-Clause
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#
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# Compares the ABI of the current working tree with the ABI
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# from a base-version. Uses libabigail for the actual comparison.
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#
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# To use the tool, just run the script. It will build Calamares at
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# least once, maybe twice (if it needs the base-version ABI information
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# and hasn't cached it).
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# The base version can be a tag or git-hash; it will be checked-out
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# in a worktree.
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#
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2024-02-17 16:05:35 +01:00
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# Note that the hash here corresponds to v3.3.0 .
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BASE_VERSION=1d8a1972422d83c36f2b934c2629ae1f564c0428
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2021-11-30 12:16:14 +01:00
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### Build a tree and cache the ABI info into ci/
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#
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#
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do_build() {
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LABEL=$1
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SOURCE_DIR=$2
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BUILD_DIR=build-abi-$LABEL
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rm -rf $BUILD_DIR
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mkdir $BUILD_DIR
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if ( cd $BUILD_DIR && cmake $SOURCE_DIR -DCMAKE_BUILD_TYPE=Debug -DCMAKE_CXX_FLAGS="-Og -g -gdwarf" -DCMAKE_C_FLAGS="-Og -g -gdwarf" && make -j12 ) > /dev/null 2>&1
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then
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ls -1 $BUILD_DIR/libcalamares*.so.*
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# Copy the un-versioned files; .so is a symlink to the just-built one
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for lib in $BUILD_DIR/libcalamares*.so
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do
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cp $lib ci/`basename $lib`.$LABEL
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done
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else
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echo "! failed to build $LABEL"
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exit 1
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fi
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}
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### Build current tree and get ABI info
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#
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#
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do_build current `pwd -P`
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### Build ABI base version
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#
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# We cache this to save on some build time, if we are chasing a
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# single branch from an unchanging base version.
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#
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if test -f ci/libcalamares.so.$BASE_VERSION
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then
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# The ABI version is cached, so we're good
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:
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else
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git worktree remove --force tree-abi-$BASE_VERSION
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git worktree add tree-abi-$BASE_VERSION $BASE_VERSION > /dev/null 2>&1 || { echo "! could not create worktree for $BASE_VERSION" ; exit 1 ; }
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do_build $BASE_VERSION $( cd tree-abi-$BASE_VERSION && pwd -P )
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fi
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### Compare & Report
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#
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# abidiff compares the Application Binary Interfaces (ABI) of two
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# shared libraries in ELF format. It emits a meaningful report describing
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# the differences between the two ABIs.
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#
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# -l prints only the leaf changes, leaving out explanations of why.
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#
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abidiff -l ci/libcalamares.so.$BASE_VERSION ci/libcalamares.so.current
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