#!/bin/bash
# Copyright (C) 2018 The Android Open Source Project
#
# 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.

# Get the pid of processes matching a string.
prepend=''
append=''
if [ "$1" = "--exact" ]; then
    prepend=' '
    append='$'
    shift
fi
EXE="$1"
if [ "$EXE" ] ; then
    PID=`adb shell ps \
        | tr -d '\r' \
        | \grep "$prepend$EXE$append" \
        | sed -e 's/^[^ ]* *\([0-9]*\).*$/\1/'`
    echo "$PID"
else
    echo "usage: pid [--exact] <process name>"
    exit 255
fi