mirror of
https://git.code.sf.net/p/libpng/code.git
synced 2025-07-10 18:04:09 +02:00
93 lines
3.0 KiB
Bash
Executable File
93 lines
3.0 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -o errexit -o pipefail -o posix
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# Copyright (c) 2019-2024 Cosmin Truta.
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#
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# Use, modification and distribution are subject to the MIT License.
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# Please see the accompanying file LICENSE_MIT.txt
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#
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# SPDX-License-Identifier: MIT
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# shellcheck source="ci/lib/ci.lib.sh"
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source "$(dirname "$0")/lib/ci.lib.sh"
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cd "$CI_TOPLEVEL_DIR"
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function ci_shellify_c {
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# Convert C preprocessor text, specifically originating
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# from png.h, to shell scripting text.
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# Select only the easy-to-parse definitions of PNG_LIBPNG_*.
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sed -n -e '/^\# *define * PNG_LIBPNG_[^ ]* * ["0-9A-Za-z_]/ p' |
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sed -e 's/^\# *define * PNG\([^ ]*\) * \([^ ]*\)/PNG\1=\2/' \
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-e 's/=PNG\([0-9A-Za-z_]*\)/=\${PNG\1}/' \
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-e 's/^\([^ ]*=[^ ]*\).*$/export \1;/'
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}
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function ci_shellify_autoconf {
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# Convert autoconf (M4) text, specifically originating
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# from configure.ac, to shell scripting text.
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# Select only the easy-to-parse definitions of PNGLIB_*.
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sed -n -e '/^ *PNGLIB_[^ ]*=[$"0-9A-Za-z_]/ p' |
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sed -e 's/^ *PNG\([0-9A-Za-z_]*\)=\([^# ]*\).*$/PNG\1=\2/' \
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-e 's/^\([^ ]*=[^ ]*\).*$/export \1;/'
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}
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function ci_shellify_cmake {
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# Convert CMake lists text, specifically originating
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# from CMakeLists.txt, to shell scripting text.
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# Select only the easy-to-parse definitions of PNGLIB_*.
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sed -n -e '/^ *set *(PNGLIB_[^ ]* * [$"0-9A-Za-z_].*)/ p' |
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sed -e 's/^ *set *(PNG\([^ ]*\) * \([^() ]*\)).*$/PNG\1=\2/' \
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-e 's/^\([^ ]*=[^ ]*\).*$/export \1;/'
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}
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function ci_shellify {
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local arg filename
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for arg in "$@"
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do
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test -f "$arg" || ci_err "no such file: '$arg'"
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filename="$(basename -- "$arg")"
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case "$filename" in
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( *.[ch] )
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[[ $filename == png.h ]] || {
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ci_err "unable to shellify: '$filename' (expecting: 'png.h')"
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}
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ci_shellify_c <"$arg" ;;
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( config* | *.ac )
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[[ $filename == configure.ac ]] || {
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ci_err "unable to shellify: '$filename' (expecting: 'configure.ac')"
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}
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ci_shellify_autoconf <"$arg" ;;
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( *CMake* | *cmake* | *.txt )
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[[ $filename == [Cc][Mm]ake[Ll]ists.txt ]] || {
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ci_err "unable to shellify: '$filename' (expecting: 'CMakeLists.txt')"
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}
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ci_shellify_cmake <"$arg" ;;
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( * )
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ci_err "unable to shellify: '$arg'" ;;
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esac
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done
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}
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function usage {
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echo "usage: $CI_SCRIPT_NAME [<options>] <files>..."
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echo "options: -?|-h|--help"
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echo "files: png.h|configure.ac|CMakeLists.txt"
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exit "${@:-0}"
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}
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function main {
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local opt
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while getopts ":" opt
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do
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# This ain't a while-loop. It only pretends to be.
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[[ $1 == -[?h]* || $1 == --help || $1 == --help=* ]] && usage 0
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ci_err "unknown option: '$1'"
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done
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shift $((OPTIND - 1))
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[[ $# -eq 0 ]] && usage 2
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# And... go!
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ci_shellify "$@"
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}
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main "$@"
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