autodoc/build/autodoc.sh

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#!/bin/bash
# $1:WATCHROOT (default: ".")
g_watchroot="$(readlink -f "${1:-.}")"
# compile using bare make command
do_make() { # $1:DIR $2:OBJECT
# extract params
local dir="$1"
local object="$2"
# extract Makefile 'source pattern'
local srcpat="$(grep -E "^#@SRCPAT" "${dir}/Makefile" | sed -r "s/^#@SRCPAT\s+//")"
if [ -z "${srcpat}" ]; then
echo "Empty source pattern! Makefile needs '#@SRCPAT' annotation!"
elif [[ "${object}" =~ ${srcpat} ]]; then
echo "SRCPAT OK."
make --no-print-directory -C "${dir}" -j
else
echo "SRCPAT mismatch '${srcpat}'."
fi
}
# compile a directory
do_compile() { # $1:DIR $2:OBJECT $3:DONE
# extract params
local dir="$1"
local object="$2"
local done="${3:-0}"
# build systems
if [ -r "${dir}/Makefile" ]; then
# Makefile found
echo -n "Using '${dir}/Makefile'. "
do_make "${dir}" "${object}"
local done="1"
fi
# search parent dir for more build instructions
if [ "${dir}" != "${g_watchroot}" ]; then
# never leave $g_watchroot
local dir="$(dirname "${dir}")"
do_compile "${dir}" "${object}" "${done}"
elif [ "${done}" == "0" ]; then
# hit $g_watchroot
echo "No build instructions found!"
fi
}
# process an inotify event
do_handle() { # $1:FLAGS $2:OBJECT
# extract params
local flags="$1"
shift 1
local dir="$(dirname "$*")"
local object="$(basename "$*")"
if [[ "${flags}" =~ "ISDIR" ]]; then
# object refers to directory
local dir="${dir}/${object}"
local object="."
fi
# start using toolchain
echo -n "'${object}': '${flags}' in '${dir}'. "
do_compile "${dir}" "${object}"
}
#
# MAIN
#
echo "Booting ${0} in '${g_watchroot}'."
# setup inotify:
# -mrq monitor, recursive, quiet
# -e events
# --format %e eventlist csv, %w workdir, %f filename
inotifywait -mrq \
-e create -e delete -e moved_to -e close_write \
--format '%e %w%f' \
"${g_watchroot}" | \
\
while read FILE; do
do_handle ${FILE}
done