mistral/tools/cover.sh
Brad P. Crochet 9883814cdc Switch to using stestr
When the TC merged I2637dd714cbb6d38ef8b8dc1083e359207118284 we're
supposed to invoke stestr rather than testr so lets do that

Change-Id: Icd303c37d2371d44726d55c947bbc8b9e99f2a1c
2018-05-30 14:46:25 -04:00

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#!/bin/bash
#
# 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.
ALLOWED_EXTRA_MISSING=4
show_diff () {
head -1 $1
diff -U 0 $1 $2 | sed 1,2d
}
# Stash uncommitted changes, checkout previous commit and save coverage report
uncommitted=$(git status --porcelain | grep -v "^??")
[[ -n $uncommitted ]] && git stash > /dev/null
git checkout HEAD^
baseline_report=$(mktemp -t mistral_coverageXXXXXXX)
find . -type f -name "*.pyc" -delete && stestr --coverage "$*"
coverage report -m > $baseline_report
baseline_missing=$(awk 'END { print $3 }' $baseline_report)
previous_sha=$(git rev-parse HEAD);
# Checkout back and unstash uncommitted changes (if any)
git checkout -
[[ -n $uncommitted ]] && git stash pop > /dev/null
# Erase previously collected coverage data.
coverage erase;
# Generate and save coverage report
current_report=$(mktemp -t mistral_coverageXXXXXXX)
find . -type f -name "*.pyc" -delete && stestr --coverage "$*"
coverage report -m > $current_report
current_missing=$(awk 'END { print $3 }' $current_report)
# Show coverage details
allowed_missing=$((baseline_missing+ALLOWED_EXTRA_MISSING))
echo "Allowed to introduce missing lines : ${ALLOWED_EXTRA_MISSING}"
echo "Copmared against ${previous_sha}";
echo "Missing lines in previous commit : ${baseline_missing}"
echo "Missing lines in proposed change : ${current_missing}"
if [ $allowed_missing -gt $current_missing ];
then
if [ $baseline_missing -lt $current_missing ];
then
show_diff $baseline_report $current_report
echo "I believe you can cover all your code with 100% coverage!"
else
echo "Thank you! You are awesome! Keep writing unit tests! :)"
fi
exit_code=0
else
show_diff $baseline_report $current_report
echo "Please write more unit tests, we should keep our test coverage :( "
exit_code=1
fi
rm $baseline_report $current_report
exit $exit_code