blob: e6693af97ae869e107530d7602b49cdd98926cc5 [file] [log] [blame]
#!/usr/bin/env bash
set -o errexit -o pipefail -o posix
# Copyright (c) 2019-2024 Cosmin Truta.
#
# Use, modification and distribution are subject to the MIT License.
# Please see the accompanying file LICENSE_MIT.txt
#
# SPDX-License-Identifier: MIT
# shellcheck source=ci/lib/ci.lib.sh
source "$(dirname "$0")/lib/ci.lib.sh"
cd "$CI_TOPLEVEL_DIR"
function ci_shellify_c {
# Convert C preprocessor text, specifically originating
# from png.h, to shell scripting text.
# Select only the easy-to-parse definitions of PNG_LIBPNG_*.
sed -n -e '/^\# *define * PNG_LIBPNG_[^ ]* * ["0-9A-Za-z_]/ p' |
sed -e 's/^\# *define * PNG\([^ ]*\) * \([^ ]*\)/PNG\1=\2/' \
-e 's/=PNG\([0-9A-Za-z_]*\)/=\${PNG\1}/' \
-e 's/^\([^ ]*=[^ ]*\).*$/export \1;/'
}
function ci_shellify_autoconf {
# Convert autoconf (M4) text, specifically originating
# from configure.ac, to shell scripting text.
# Select only the easy-to-parse definitions of PNGLIB_*.
sed -n -e '/^ *PNGLIB_[^ ]*=[$"0-9A-Za-z_]/ p' |
sed -e 's/^ *PNG\([0-9A-Za-z_]*\)=\([^# ]*\).*$/PNG\1=\2/' \
-e 's/^\([^ ]*=[^ ]*\).*$/export \1;/'
}
function ci_shellify_cmake {
# Convert CMake lists text, specifically originating
# from CMakeLists.txt, to shell scripting text.
# Select only the easy-to-parse definitions of PNGLIB_*.
sed -n -e '/^ *set *(PNGLIB_[^ ]* * [$"0-9A-Za-z_].*)/ p' |
sed -e 's/^ *set *(PNG\([^ ]*\) * \([^() ]*\)).*$/PNG\1=\2/' \
-e 's/^\([^ ]*=[^ ]*\).*$/export \1;/'
}
function ci_shellify {
local arg filename
for arg in "$@"
do
test -f "$arg" || ci_err "no such file: '$arg'"
filename="$(basename -- "$arg")"
case "$filename" in
( *.[ch] )
[[ $filename == png.h ]] || {
ci_err "unable to shellify: '$filename' (expecting: 'png.h')"
}
ci_shellify_c <"$arg" ;;
( config* | *.ac )
[[ $filename == configure.ac ]] || {
ci_err "unable to shellify: '$filename' (expecting: 'configure.ac')"
}
ci_shellify_autoconf <"$arg" ;;
( *CMake* | *cmake* | *.txt )
[[ $filename == [Cc][Mm]ake[Ll]ists.txt ]] || {
ci_err "unable to shellify: '$filename' (expecting: 'CMakeLists.txt')"
}
ci_shellify_cmake <"$arg" ;;
( * )
ci_err "unable to shellify: '$arg'" ;;
esac
done
}
function usage {
echo "usage: $CI_SCRIPT_NAME [<options>] <files>..."
echo "options: -?|-h|--help"
echo "files: png.h|configure.ac|CMakeLists.txt"
exit "${@:-0}"
}
function main {
local opt
while getopts ":" opt
do
# This ain't a while-loop. It only pretends to be.
[[ $1 == -[?h]* || $1 == --help || $1 == --help=* ]] && usage 0
ci_err "unknown option: '$1'"
done
shift $((OPTIND - 1))
[[ $# -eq 0 ]] && usage 2
# And... go!
ci_shellify "$@"
}
main "$@"