new options implemented: '-h|--help' and '-f|--file <filename>'

'-f|--file <filename>' is for obtaining package names
    from a specified file
manual page updated and slightly improved

pkg_src_update_summary/files/Makefile.version

@@ -1 +1 @@
-VERSION=0.3.0
+VERSION=0.4.0

pkg_src_update_summary/files/pkg_src_update_summary

@@ -37,13 +37,43 @@ fi
 ############################################################
 usage (){
     cat <<EOF
-pkg_src_update_summary - efficiently updates
-package summary from pkgsrc/ tree (pkg_info -X format)
+pkg_src_update_summary - incrementally updates
+package summary from pkgsrc/ tree (pkg_summary(5) format)
 
-usage: pkg_src_update_summary summary_file
+usage: pkg_src_update_summary [OPTIONS] summary_file
+OPTIONS:
+  -h|--help              display this help message
+  -f|--file <filename>   obtain package names from
+                         a specified file, - for stdin
 EOF
 }
 
+pkgs_fn=''
+
+while test $# -ne 1; do
+    case "$1" in
+	-h|--help)
+	    usage
+	    exit 0;;
+	-f|--file)
+	    pkgs_fn="$2"
+	    shift;;
+	--file=*|-f=*)
+	    pkgs_fn="`printf '%s\n' \"$1\" | sed 's,^[^=]*=,,'`";;
+	-f*)
+	    pkgs_fn="`printf '%s\n' \"$1\" | cut -b3-`";;
+	--)
+	    shift
+	    break;;
+	-*)
+	    echo "Bad option $1" 1>&2
+	    exit 1;;
+	*)
+	    break
+    esac
+    shift
+done
+
 if test $# -ne 1; then
     usage
     exit 1
@@ -63,7 +93,11 @@ mkdir -m 700 "$tmp_dir"
 
 allpkgs_fn=$tmp_dir/allpkgs
 
-pkg_list_all_pkgs > $allpkgs_fn
+if test "$pkgs_fn"; then
+    awk '{sub(/#.*/, "")} NF > 0 {print $1}' $pkgs_fn > $allpkgs_fn
+else
+    pkg_list_all_pkgs > $allpkgs_fn
+fi
 
 ############################################################
 #### process packages

pkg_src_update_summary/files/pkg_src_update_summary.1

@@ -1,4 +1,4 @@
-.\"	$NetBSD: pkg_src_update_summary.1,v 1.1 2008/02/14 19:37:41 cheusov Exp $
+.\"	$NetBSD: pkg_src_update_summary.1,v 1.2 2008/03/05 20:40:08 cheusov Exp $
 .\"
 .\" Copyright (c) 2008 by Aleksey Cheusov (vle@gmx.net)
 .\" Absolutely no warranty.
@@ -7,10 +7,11 @@
 .Dt PKG_SRC_UPDATE_SUMMARY 1
 .Sh NAME
 .Nm pkg_src_update_summary
-.Nd Incrementally updates source packages summary
+.Nd incrementally updates source packages summary
 .Sh SYNOPSIS
 .Nm
-.Op Ar summary_filename
+.Op Ar OPTIONS
+.Ar summary_filename
 .Sh DESCRIPTION
 .Nm
 incrementally updates source packages summary about all packages in
@@ -23,6 +24,13 @@ by PKGNAME field.
 3) copying summary from summary_filename about unchanged packages.
 4) collecting full summary information about all changed and new packages.
 5) new summary = 3+4
+.Pp
+The options are as follows:
+.Bl -tag -width indent
+.It Fl h
+display help message
+.It Fl f Ar filename
+package names are obtained from a specified file, not from pkgsrc tree
 .Sh ENVIRONMENT
 .Bd -literal
 .Bl -tag -width Cm
@@ -37,6 +45,7 @@ path to pkgsrc friendly make utility, defaults to make
 pkg_src_update_summary /usr/pkgsrc/pkg_src_summary.txt
 .Ed
 .Sh SEE ALSO
+.Xr pkg_summary 5 ,
 .Xr pkg_src_summary 1 ,
 .Xr pkg_src_micro_summary 1 ,
 .Xr pkg_cmp_summary 1 ,