#!/bin/bash
#

# Copyright (C) 2010, 2011, 2012 Google Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.

set -e
set -u

: ${PYTHON:=python}
: ${COVERAGE:?}
: ${COVERAGE_FILE:?}
: ${TEXT_COVERAGE:?}
: ${HTML_COVERAGE:=}
: ${GANETI_TEMP_DIR:?}

reportargs=(
  '--include=*'
  '--omit=test/py/*'
  )

$COVERAGE erase

if [[ -n "$HTML_COVERAGE" ]]; then
  if [[ ! -d "$HTML_COVERAGE" ]]; then
    echo "Not a directory: $HTML_COVERAGE" >&2
    exit 1
  fi

  # At least coverage 3.4 fails to overwrite files
  find "$HTML_COVERAGE" \( -type f -o -type l \) -delete
fi

for script; do
  if [[ "$script" == *-runasroot.py ]]; then
    if [[ -z "$FAKEROOT" ]]; then
      echo "WARNING: FAKEROOT variable not set: skipping $script" >&2
      continue
    fi
    cmdprefix="$FAKEROOT"
  else
    cmdprefix=
  fi
  $cmdprefix $COVERAGE run --branch --append "${reportargs[@]}" $script
done

echo "Writing text report to $TEXT_COVERAGE ..." >&2
$COVERAGE report "${reportargs[@]}" | tee "$TEXT_COVERAGE"

if [[ -n "$HTML_COVERAGE" ]]; then
  echo "Generating HTML report in $HTML_COVERAGE ..." >&2
  $COVERAGE html "${reportargs[@]}" -d "$HTML_COVERAGE"
fi