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#!/bin/bash
# Inspired by Debian and RedHat run-parts but portable and specific to di-b.
#
# Copyright 2012 Hewlett-Packard Development Company, L.P.
#
# 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_regex=${RUN_PARTS_REGEX:-"^[0-9A-Za-z_-]+$"}
show_list=
set -ue
set -o pipefail
name=$(basename $0)
function usage {
echo "Usage: $name [OPTION] scripts_directory"
echo "Option:"
echo " --list print names of all valid files"
echo
echo "Examples:"
echo " dib-run-parts --list /opt/stack/os-config-refresh/configure.d/"
echo " dib-run-parts /opt/stack/os-config-refresh/configure.d/"
exit 1
} >&2
function output_prefix {
printf "%s " "${name}" >&2
}
function output {
output_prefix
echo $* >&2
}
function output_printf {
local FORMAT="$1"
shift
output_prefix
printf "${FORMAT}" $@ >&2
}
function cleanup {
rm -rf ${PROFILE_DIR}
}
# source the environment files from environment.d
# arg : target_dir
function source_environment {
local dir=$target_dir/../environment.d
local env_files
local xtrace
if [ -d ${dir} ] ; then
env_files=$(find ${dir} -maxdepth 1 -xtype f | \
grep -E "/[0-9A-Za-z_\.-]+$" | \
LANG=C sort -n)
for env_file in $env_files ; do
output "Sourcing environment file ${env_file}"
# Set tracing as we import these environment files; it's
# nice to see the definitions in the logs
xtrace=$(set +o | grep xtrace)
set -o xtrace
source $env_file
$xtrace
done
fi
}
if [ $# -lt 1 ] ; then
usage
fi
if [ "$1" == "--list" ] ; then
show_list="1"
shift
fi
target_dir="${1:-}"
if ! [ -d "$target_dir" ] ; then
output "Scripts directory [$target_dir] must exist and be a directory"
usage
fi
# We specifically only want to sort *by the numbers*.
# Lexical sorting is not guaranteed, and identical numbers may be
# parallelized later
# Note: -maxdepth 1 ensures only files in the target directory (but not
# subdirectories) are run, which is the way run-parts behaves.
targets=$(find $target_dir -maxdepth 1 -xtype f -executable -printf '%f\n' | grep -E "$allowed_regex" | LANG=C sort -n || echo "")
if [ "$show_list" == "1" ] ; then
for target in $targets ; do
echo "${target_dir}/${target}"
done
exit 0
fi
DIB_DEBUG_TRACE=${DIB_DEBUG_TRACE:-0}
if [ ${DIB_DEBUG_TRACE} -gt 0 ]; then
non_exec=$(find $target_dir -maxdepth 1 -xtype f \! -executable -printf '%f\n')
if [ ! -z "$non_exec" ]; then
output "Ignoring non-executable files: $non_exec"
fi
bad_filename=$(find $target_dir -maxdepth 1 -xtype f -executable -printf '%f\n' | grep -v -E "$allowed_regex" || echo "")
if [ ! -z "$bad_filename" ]; then
output "Ignoring non-conforming filenames: $bad_filename"
fi
fi
PROFILE_DIR=$(mktemp -d --tmpdir profiledir.XXXXXX)
trap cleanup EXIT
# note, run this in a sub-shell so we don't pollute our
# own environment with source_environment
(
source_environment
for target in $targets ; do
output "Running $target_dir/$target"
target_tag=${target//\//_}
date +%s.%N > $PROFILE_DIR/start_$target_tag
$target_dir/$target
target_tag=${target//\//_}
date +%s.%N > $PROFILE_DIR/stop_$target_tag
output "$target completed"
done
)
output "----------------------- PROFILING -----------------------"
output ""
output "Target: $(basename $target_dir)"
output ""
output_printf "%-40s %9s\n" Script Seconds
output_printf "%-40s %9s\n" --------------------------------------- ----------
output ""
pushd $PROFILE_DIR > /dev/null
for target in $(find . -name 'start_*' -printf '%f\n' | env LC_ALL=C sort -n) ; do
stop_file=stop_${target##start_}
start_seconds=$(cat $target)
stop_seconds=$(cat $stop_file)
duration=$(echo - | awk "{ print $stop_seconds - $start_seconds }")
LC_NUMERIC=C LC_ALL=C output_printf "%-40s %10.3f\n" ${target##start_} $duration
done
popd > /dev/null
rm -rf $PROFILE_DIR
output ""
output "--------------------- END PROFILING ---------------------"