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path: root/debian/_buildscripts/local/scripts/internals/_build_common.sh
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#!/bin/bash


#----------------------------
#----------------------------
# Color table
# Black       0;30     Dark Gray     1;30
# Blue        0;34     Light Blue    1;34
# Green       0;32     Light Green   1;32
# Cyan        0;36     Light Cyan    1;36
# Red         0;31     Light Red     1;31
# Purple      0;35     Light Purple  1;35
# Brown       0;33     Yellow        1;33
# Light Gray  0;37     White         1;37
# No Color    0
set -a
CBlack='\e[0;30m'
CDarkGray='\e[1;30m'
CBlue='\e[0;34m'
CLightBlue='\e[1;34m'
CGreen='\e[0;32m'
CLightGreen='\e[1;32m'
CCyan='\e[0;36m'
CLightCyan='\e[1;36m'
CRed='\e[0;31m'
CLightRed='\e[1;31m'
CPurple='\e[0;35m'
CLightPurple='\e[1;35m'
CBrown='\e[0;33m'
CYellow='\e[1;33m'
CGray='\e[0;37m'
CWhite='\e[1;37m'
CNone='\e[0m'
set +a

#----------------------------
function init_common()
{
	# Check script folder
	export SCRIPT_DIR=$(dirname $(readlink -f "$0"))
	
	# Prevent the script to be run from TDE packaging repo
	REPO_URL=$(git config --get remote.origin.url 2>/dev/null)
	if [ ! -z "$REPO_URL" ] && [ -z "${REPO_URL##*tde-packaging}" ]; then 
		echo -e "${CYellow}  --- ERROR ---${CNone}"
		echo "This script cannot be run from the TDE packaging repository."
		echo "Please follow the instructions provided, then rerun this script."
		exit 1
	fi
		
	# Read config settings
	CFG_FILE=$SCRIPT_DIR/_config.sh
	if [ -f "$CFG_FILE" ]; then
		. "$CFG_FILE"
	else
		echo -e "${CYellow}  --- NOTE ---${CNone}"
		echo "Creating TDE build configuration file from template as $CFG_FILE."
		echo "Please check and modify as required, then rerun this script."
		cp "$SCRIPT_DIR/internals/_config_template.sh" "$CFG_FILE"
		exit 2
	fi
	
	# TDE root folder must exist
	if [ ! -d "$TDE_DIR" ]; then 
		echo -e "${CYellow}  --- ERROR ---${CNone}"
		echo "A valid TDE root folder could not be located. Something is wrong with your configuration"
		echo "in the config file $CFG_FILE"
		echo "Please check and modify the TDE_DIR variable as required, then rerun this script."
		exit 3
	fi
	
	# Search for main TDE repo
	cd "$TDE_DIR/$CFG_GIT_TDE_MAIN" &>/dev/null
	CURR_DIR=$(git rev-parse --show-toplevel 2>/dev/null)
	if [ -z "$CURR_DIR" ]; then 
		echo -e "${CYellow}  --- ERROR ---${CNone}"
		echo "Main TDE repo could not be located. Something is wrong with your configuration"
		echo "in the config file $CFG_FILE"
		echo "Please check and modify the TDE_DIR variable as required, then rerun this script."
		exit 4
	fi
	
	# Search for TDE packaging repo
	cd "$TDE_DIR/$CFG_GIT_TDE_PACKAGING" &>/dev/null
	CURR_DIR=$(git rev-parse --show-toplevel 2>/dev/null)
	if [ -z "$CURR_DIR" ]; then 
		echo -e "${CYellow}  --- ERROR ---${CNone}"
		echo "TDE packaging repo could not be located. Something is wrong with your configuration"
		echo "in the config file $CFG_FILE"
		echo "Please check and modify the TDE_DIR variable as required, then rerun this script."
		exit 5
	fi
	
	# Make sure we have selected a supported distribution
	DISTS_FILE=$SCRIPT_DIR/internals/distro_list.txt
	if [ ! -f "$DISTS_FILE" ]; then
		echo -e "${CYellow}  --- NOTE ---${CNone}"
		echo "Could not find the list of supported distributions."
		echo "Please check the file $DISTS_FILE exists, then rerun this script."
		exit 6
	fi
	export DISTRO_FOUND=${DISTRO_FOUND:-"n"}
	if [ "$DISTRO_FOUND" != "y" ]; then
		# Need to use a "here string" otherwise if the DISTRO_FOUND value is modified
		# inside the while loop, this would not remember after the loop.
		while read l_distro l_version l_name l_rel_suffix; do	
			if [ "$l_distro" = "$DISTRO" -a "$l_name" = "$DISTRO_NAME" ]; then
				export DISTRO_FOUND="y"
				export DISTRO_VERSION="$l_version"
				export REL_SUFFIX="$l_rel_suffix"
				break
			fi
		done <<< $(cat $DISTS_FILE | grep -E "^(\s*[^#\s]+\s+[^\s]+.*)$")
	fi 
	if [ "$DISTRO_FOUND" != "y" ]; then
		echo -e "${CYellow}  --- NOTE ---${CNone}"
		echo "The specified distribution ($DISTRO $DISTRO_NAME) is not supported."
		echo "Something is wrong with your configuration ($CFG_FILE)"
		echo "or with the list of supported distributions ($DISTS_FILE)."
		echo "Please check the DISTRO and DISTRO_NAME variables, then rerun this script."
		exit 7
	fi
	
  export SCRIPT_LOG_DIR=$TDE_DIR/$CFG_SCRIPT_LOG_DIR
	export LOG_RESULT_FILENAME="$SCRIPT_LOG_DIR/build_result.log"  # Log result into the common build logfile

  cd "$SCRIPT_DIR"
}


#----------------------------
# Save execution start time
# Parameters:
#  $1 - timer number
function exec_time_start()
{
  _ET_start_var="_ET_start_$1"
  eval "$_ET_start_var=`date +%s.%N`"
}


#----------------------------
# Save execution stop time and set $2 to the execution time
# in the format: dd/hh:mm:ss.mmm
# Parameters:
#  $1 - timer number
#  $2 - result variable name
function exec_time_stop()
{
  _ET_start_var="_ET_start_$1"
  _ET_stop_var="_ET_stop_$1"
  eval "$_ET_stop_var=`date +%s.%N`"
  _ET_diff=`echo "${!_ET_stop_var} - ${!_ET_start_var}" | bc`
  _ET_days=`echo "$_ET_diff/86400" | bc`
  _ET_diff_day=`echo "$_ET_diff-86400*$_ET_days" | bc`
  _ET_hours=`echo "$_ET_diff_day/3600" | bc`
  _ET_diff_hour=`echo "$_ET_diff_day-3600*$_ET_hours" | bc`
  _ET_mins=`echo "$_ET_diff_hour/60" | bc`
  _ET_secs=`echo "$_ET_diff_hour-60*$_ET_mins" | bc`
  local _resultvar=$2
  eval "$_resultvar=`printf \"%02d/%02d:%02d:%06.3f\" $_ET_days $_ET_hours $_ET_mins $_ET_secs`"
}