Add ezstream-file support for -p pidfile

doc/ezstream-file.sh.1.in.in

@@ -22,6 +22,7 @@
 .Nm
 .Bk -words
 .Op Fl hqrVv
+.Op Fl p Ar pidfile
 .Op Fl T Ar cfg_template
 .Op Ar
 .Ek
@@ -60,6 +61,17 @@ binary.
 .It Fl h
 Print a summary of available command line parameters with short descriptions
 and exit.
+.It Fl p Ar pidfile
+.Po
+Passed to
+.Nm ezstream .
+.Pc
+Write the
+.Nm
+process ID
+.Pq a single number
+to
+.Ar pidfile .
 .It Fl q
 .Po
 Passed to

src/ezstream-file.sh.in

@@ -21,7 +21,7 @@
 _myname="$(basename $0)"
 _filename_placeholder="%FILENAME%"
 
-_opt_string="hqrT:Vv"
+_opt_string="hp:qrT:Vv"
 print_usage()
 {
 	echo "usage: ${_myname} [-hqrVv] [-T cfg_template] [file ...]" >&2
@@ -32,11 +32,12 @@ print_usage_help()
 	cat << __EOT >&2
 
   -h           print this help and exit
+  -p pidfile   [ezstream] write PID to pidfile
   -q           [ezstream] suppress STDERR output from external en-/decoders
   -r           [ezstream] show real-time stream information on stdout
   -T template  run ezstream using template for configuration
   -V           print the version number and exit
-  -v           [ezstream] verbose output (use twice for more effect)
+  -v           [ezstream] increase logging verbosity
 
 The configuration template must contain the configuration statement
         <filename>${_filename_placeholder}</filename>
@@ -46,6 +47,8 @@ See the ezstream-file.sh(1) manual for detailed information.
 __EOT
 }
 
+_pidfile=""
+_pidfile_arg=""
 _quiet=""
 _rtstatus=""
 _verbose=""
@@ -65,6 +68,10 @@ do
 		print_usage_help
 		exit 0
 		;;
+	-p)
+		_pidfile="-p"
+		_pidfile_arg="$2"
+		shift; shift ;;
 	-q)
 		_quiet="-q"; shift ;;
 	-r)
@@ -141,6 +148,7 @@ else
 	done
 fi
 
-${EZSTREAM} ${_quiet} ${_rtstatus} ${_verbose} -c "${_cfg}"
+${EZSTREAM} ${_quiet} ${_rtstatus} ${_verbose} ${_pidfile} ${_pidfile_arg} \
+    -c "${_cfg}"
 
 exit $?