setting password to run pg_restore and pg_dump with ant script

exec_pg_dump.xml

<exec failifexecutionfails="true" failonerror="true"
			executable="${postgres.dir}/bin/pg_dump"
			output="backup-ouput.txt">
			<env key="PGPASSWORD" value="${postgres.password}" />
			<arg value="-U" />
			<arg value="${postgres.user}" />
			<arg value="-h" />
			<arg value="${postgres.host}" />
			<arg value="-Fc" />
			<arg value="--blobs" />
			<arg value="-f" />
			<arg value="${backup.db.file.path}" />
			<arg value="mydb" />
		</exec>
		
		<available property="backup.file.present" file="${backup.db.file.path}"
			type="file" description="Verificando se arquivo de backup do banco de dados foi criado corretamente." />
		
		<fail unless="backup.file.present" 
			message="Erro ao tentar efetuar backup do banco de dados." />

exec_pg_restore.xml

<exec failifexecutionfails="true" failonerror="true" 
			executable="${postgres.dir}/bin/pg_restore"
			output="restore-output.txt">
			<env key="PGPASSWORD" value="${postgres.password}" />
			<arg value="-U" />
			<arg value="${postgres.user}" />
			<arg value="-h" />
			<arg value="${postgres.host}" />
			<arg value="--dbname" />
			<arg value="mydb" />
			<arg value="--verbose" />
			<arg value="${backup.db.file.path}" />			
		</exec>

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