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#!/bin/sh
# tool/check-rst -- check syntax of reStructuredText in the MPS source tree
# Richard Brooksby, Ravenbrook Limited, 2023-01-13
#
# Copyright (c) 2023 Ravenbrook Limited. See end of file for license.
#
# This script finds reStructuredText files in the MPS tree and runs
# them through docutils to check for syntax errors.
#
# It can be invoked from the command line of from Continuous
# Integration scripts.  See .github/workflows/rst-check.yml
#
# This script excludes the manual because the reStructuredText there
# is in an extended Sphinx format that can't be checked by the basic
# docutils.  It can be checked by building the manual.  See "Building
# the MPS manual" in manual/build.txt.

{
    find . -path ./manual/source -prune -o \
	 -path ./manual/tool -prune -o \
	 -type f -name '*.rst' -print
    find . -path ./manual/build.txt -prune -o \
	 -type f -name '*.txt' -print |
	while read -r f; do
	    if head -1 -- "$f" | grep -F -q -e '-*- rst -*-'; then
		echo "$f"
	    fi
	done
} | {
    code=0
    while read -r f; do
	if ! rst2html --report=2 --exit-status=2 "$f" > /dev/null; then
	    code=1
	fi
    done
    exit "$code"
}

# A. REFERENCES
#
# [None]
#
#
# B. DOCUMENT HISTORY
#
# 2023-01-13 RB Created.
#
#
# C. COPYRIGHT AND LICENSE
#
# Copyright (C) 2023 Ravenbrook Limited <https://www.ravenbrook.com/>.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the
#    distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
# IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
#
# $Id$