zuul-jobs/roles/fetch-subunit-output/files/find-testr.sh
Clark Boylan ce31c2c678 Find (s)testr more reliably
We have seen instances where type -p (s)testr seems to return with a
leading blank line which confuses ansible later when trying to use the
first line of output as the path to (s)testr. Address this by chomping
with grep -v ^$. Additionally use type -P instead of -p to ensure we
always get a path even when the command may be an alias or builtin.

Change-Id: Ibffe1e1499eca18ef5dc3904fe222a55242b827d
2021-08-11 10:04:39 -07:00

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#!/bin/bash
# Copyright (c) 2018 Red Hat, Inc.
#
# 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.
set -eu
zuul_work_dir=$1
# Use cd in the script rather than chdir from the script module. The chdir
# has some source-code comments that indicate for script that it needs to be
# an absolute path. Since our zuul_work_dir defaults to
# "{{ zuul.project.src_dir }}" in many places, that could be rather bad.
# The script can ensure it starts from the home dir and then change into the
# directory, which should work for both relative and absolute paths.
cd $HOME
cd $zuul_work_dir
# A non zero exit code means we didn't find any stestr or testr database
# content. Additionally if the database content is parseable we emit on
# stdout the commands which can be used to retrieve that parsed content.
# This distiction is necessary as we want to take different actions based
# on whether or not the database content is parseable.
rc=1
commands=""
if [[ -d .testrepository ]] ; then
rc=0
commands="testr ${commands}"
fi
if [[ -d .stestr ]] ; then
rc=0
# NOTE(mordred) Check for the failing file in the .stestr directory
# instead of just the directory. A stestr run that fails due to python
# parsing errors will leave a directory but with no test results, which
# will result in an error in the subunit generation phase.
if [[ -f .stestr/failing ]] ; then
commands="stestr ${commands}"
fi
fi
# Add all the tox envs to the path so that type will work. Prefer tox
# envs to system path. If there is more than one tox env, it doesn't
# matter which one we use, PATH will find the first command.
if [[ -d .tox ]] ; then
for tox_bindir in $(find .tox -mindepth 2 -maxdepth 2 -name 'bin') ; do
PATH=$(pwd)/$tox_bindir:$PATH
done
fi
for command in $commands; do
# Use -P instead of -p because we always want a path here even if
# there is an alias or builtin. We also filter blank lines as we
# only want lines with paths and in some cases type seems to produce
# blank lines.
found=$(type -P $command | grep -v ^$)
if [[ -n $found ]] ; then
echo $found
break
fi
done
exit $rc