mirror of https://github.com/openssl/openssl
88 lines
2.5 KiB
Bash
Executable File
88 lines
2.5 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright 2023 The OpenSSL Project Authors. All Rights Reserved.
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#
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# Licensed under the Apache License 2.0 (the "License"). You may not use
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# this file except in compliance with the License. You can obtain a copy
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# in the file LICENSE in the source distribution or at
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# https://www.openssl.org/source/license.html
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#
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# Usage: ./util/ctags.sh [...arguments for ctags...]
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#
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# This script runs ctags twice. In the first pass, ctags extract macro
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# definitions. readtags that is part of Universal Ctags converts them
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# to ctags options. In the second pass, ctags reads the options and
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# extracts language objects with expanding the macros.
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#
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# Universal Ctags 6.0.0 or higher is assumed.
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#
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: ${CTAGS=ctags}
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: ${READTAGS=readtags}
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if ! type "${CTAGS}" > /dev/null; then
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echo "${CTAGS}: not found" 1>&2
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exit 1
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fi
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if [ $# -eq 0 ]; then
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set - -R
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fi
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if ! "${CTAGS}" --version | grep -q "Universal Ctags"; then
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"${CTAGS}" "$@"
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exit $?
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fi
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if "${CTAGS}" --version | grep -q "Universal Ctags 5.*"; then
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"${CTAGS}" "$@"
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exit $?
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fi
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if ! type "${READTAGS}" > /dev/null 2>&1; then
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echo "WARNING: ${READTAGS}: not found" 1>&2
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echo "WARNING: \"tagging after macro expanding\" doesn't work" 1>&2
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"${CTAGS}" "$@"
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exit $?
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fi
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if ! [ -d ./.ctags.d ]; then
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echo "No ./.ctags.d directory" 1>&2
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exit 1
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fi
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{
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# At the first pass, ctags should not be affected by personal
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# configuration files. So --options=NONE is passed.
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#
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# However, if the option is passed, ctags doesn't load the project
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# default configuration files under $project/.ctags.d. So we load
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# the project default configuration files, add-dir.ctags and
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# exclude.ctags, explicitly.
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#
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# openssl-stage1 contains a configuration file specialized to
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# extract macro definitions. It should not be used in normal ctags
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# usage.
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$CTAGS --quiet --options=NONE \
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--options=./.ctags.d/add-dir.ctags \
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--options=./.ctags.d/exclude.ctags \
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--options=openssl-stage1
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} | {
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macros=.ctags.d/openssl-stage2/50macro-definitons.ctags
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cat > "$macros" <<EOF
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#
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# This file is automatically generated by $0.
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# DON'T EDIT THIS FILE MANUALLY
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#
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EOF
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# Extract macro definitions and convert them to ctags options.
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$READTAGS --tag-file - \
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-Q '(and (eq? $kind "d") ($ "macrodef"))' \
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-F '(list "-D" $name $signature "=" ($ "macrodef") #t)' \
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-l >> "$macros" &&
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# At the second path, ctags extract tags with expanding macros stored in
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# 50macro-definitons.ctags.
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$CTAGS --options=openssl-stage2 \
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"$@"
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}
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