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# Copyright 2022-2026 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
# @ECLASS: edob.eclass
# @MAINTAINER:
# QA Team <qa@gentoo.org>
# @AUTHOR:
# Sam James <sam@gentoo.org>
# Florian Schmaus <flow@gentoo.org>
# @SUPPORTED_EAPIS: 7 8 9
# @BLURB: Wrap output-producing commands in ebegin/eend
# @DESCRIPTION:
# This eclass provides the edob command for ebegin/eend,
# which logs the command used verbosely and dies (exits) on failure.
#
# The edob command can be used for long running commands, even if
# those commands produce output. The edob command will suppress the
# command's output and only present it if the command returned with a
# non-zero exit status.
case ${EAPI} in
7|8|9) ;;
*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
esac
if [[ -z ${_EDOB_ECLASS} ]] ; then
_EDOB_ECLASS=1
# @FUNCTION: edob
# @USAGE: [-l <log-name>] [-m <message>] <command> [<args>...]
# @DESCRIPTION:
# Executes 'command' with any given arguments wrapped in ebegin and
# eend. Aborts on failure unless called under 'nonfatal'.
# Furthermore, redirects stdout and stderr to a log file. The content
# of the log file is shown if the command returns with a non-zero exit
# status.
#
# If -m <message> is provided, then invokes ebegin with <message>, otherwise
# a default message is used. If -l <log-name> is provided, then <log-name> is
# used to construct the name of the log file to which stdout and stderr of the
# command is redirected to.
edob() {
local message
local log_name
while true; do
case "${1}" in
-l|-m)
[[ $# -lt 2 ]] && die "Must provide an argument to ${1}"
case "${1}" in
-l)
log_name="${2}"
;;
-m)
message="${2}"
;;
esac
shift 2
;;
*)
break
;;
esac
done
[[ -z ${message} ]] && message="Running $@"
[[ -z ${log_name} ]] && log_name="$(basename ${1})"
local log_file="${T}/${log_name}.log"
ebegin "${message}"
"$@" &> "${log_file}"
local ret=$?
if ! eend $ret; then
cat "${log_file}"
die -n "Command \"$@\" failed with exit status $ret"
fi
}
fi
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