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#!/bin/bash
# Copyright 2018 Ian Kelling
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# this file was generated from gen-err and meant to be sourced
err-allow() {
if [[ $1 ]]; then
echo "errallow help: Undo the complimentary errcatch function."
else
set +E +o pipefail; trap ERR
fi
}
err-bash-trace() {
local -i argc_index=0 frame i start=${1:-1} max_indent=8 indent
local source
local extdebug=false
if [[ $(shopt -p extdebug) == *-s* ]]; then
extdebug=true
fi
for ((frame=0; frame < ${#FUNCNAME[@]}-1; frame++)); do
argc=${BASH_ARGC[frame]}
argc_index+=$argc
((frame < start)) && continue
if (( ${#BASH_SOURCE[@]} > 1 )); then
source="${BASH_SOURCE[frame+1]}:${BASH_LINENO[frame]}:"
fi
indent=$((frame-start+1))
indent=$((indent < max_indent ? indent : max_indent))
printf "%${indent}s↳%sin \`%s" '' "$source" "${FUNCNAME[frame]}"
if $extdebug; then
for ((i=argc_index-1; i >= argc_index-argc; i--)); do
printf " %s" "${BASH_ARGV[i]}"
done
fi
echo \'
done
}
err-catch() {
set -E; shopt -s extdebug
_err-trap() {
err=$?
exec >&2
set +x
echo "${BASH_SOURCE[1]}:${BASH_LINENO[0]}:in \`$BASH_COMMAND' returned $err"
err-bash-trace 2
set -e
"${_errcatch_cleanup[@]}"
echo "$0: exiting with code $err"
exit $err
}
trap _err-trap ERR
set -o pipefail
}
err-exit() {
exec >&2
code=1
if [[ $@ ]]; then
if [[ ${1/[^0-9]/} == "$1" ]]; then
code=$1
if [[ $2 ]]; then
echo "$2"
fi
else
echo "$0: $1"
fi
fi
echo "${BASH_SOURCE[1]}:${BASH_LINENO[0]}"
err-bash-trace 2
echo "$0: exiting with code $code"
exit $err
}
err-catch-function
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