smartcoin/sql_ops.sh at master · GitHubKing4321/smartcoin · GitHub

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#!/bin/bash

if [[ -n "$HEADER_sql_ops" ]]; then
        return 0
fi
HEADER_sql_ops="included"
SQL_DB=""

RunSQL()
{
        local Q
	local res
	local err

	local i=0

        Q="$*"
        if [[ -n "$Q" ]]; then
		res=$(sqlite3 -noheader -separator "	" "$HOME"/.smartcoin/"$SQL_DB" "$Q;" 2> /dev/null)
		err="$?"

		while [[ $err -ne 0 ]]; do
			let i++
			sleep 0.01
			res=$(sqlite3 -noheader -separator "	" "$HOME"/.smartcoin/"$SQL_DB" "$Q;" 2> /dev/null)
			err="$?"
			if [[ "$i" -ge 25 ]]; then
				Log "ERROR: SQL Query failed!"
				Log "	error code: $err"
				Log "	query: $Q"
				Log "	result: $res"
				res=""
				break
			fi
		done

		if [[ "$i" -gt "0" ]]; then
			Log "DEBUG: Query took $i retries."
		fi

		res=$(echo "$res" | Field_Translate)
		echo "$res"

        fi
}


#Usage:
#  Field=$(Field 1 "<SQL row>")
#Used in a 'for' loop to extract a field value from a FieldArray row
Field()
{
        local Row FieldNumber
        FieldNumber="$1"; shift
        Row="$*"
        echo "$Row" | cut -d$'\x01' -f"$FieldNumber" | tr $'\x02' ' '
}

#Usage:
#  UseDB "<DB name>"
#Changes the default database
UseDB()
{
        SQL_DB="$1"
        if [[ -z "$SQL_DB" ]]; then
                SQL_DB="smartcoin.db"
        fi
}


Field_Translate()
{
        tr '\n\t ' $'\x20'$'\x01'$'\x02' | sed 's/ *$//'
}
Field_Prepare(){
	echo -ne "$1" | Field_Translate
}
FieldArrayAdd()
{
	local menuItem=$(Field_Prepare "$1")
	echo "$menuItem "
}

UseDB "smartcoin.db"