#!/usr/bin/awk -f
# $NetBSD: binpkg-scan,v 1.5 2018/08/22 20:48:37 maya Exp $
#
# Copyright (c) 2006 The NetBSD Foundation, Inc.
# All rights reserved.
#
# This code is derived from software contributed to The NetBSD Foundation
# by Dan McMahill.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#

# Scans for packages with NO_BIN_ON_FTP set.  This script makes use of the
# cache files generated as part of the README.html generation.  This makes
# this scan run quite fast when you have a very large binary packages collection.
#
# Usage:
#
# binpkg-scan PACKAGES=/usr/pkgsrc/packages /dev/null
#

# Global variables
#-----------------
#
# notify - if set to 1, something will be set in the output script to make it
#          easy to detect and an automatic email can be sent to notify a person
#          that some cleanup is required.
#
#

BEGIN {
	printf("#!/bin/sh\n#\n\n");
	printf("# Starting scan for NO_BIN_ON_FTP packages\n\n");
	notify = 0;
}


END {

#	printf("Making sure binary package cache file is up to date...\n");
#	cmd = sprintf("%s AWK=%s CMP=%s FIND=%s GREP=%s PKG_INFO=\"%s\" PKG_SUFX=%s SED=%s SORT=%s %s/mk/scripts/binpkg-cache --packages %s",
#		SETENV, AWK, CMP, FIND, GREP, PKG_INFO, PKG_SUFX, SED, SORT, PKGSRCDIR, PACKAGES);
#	if (debug) printf("\nExecute:  %s\n",cmd);
#	rc = system(cmd);
	rc = 0;

	if (rc != 0 && rc != 2) {
	  printf("\n**** WARNING ****\n") > "/dev/stderr";
	  printf("Command: %s\nfailed.", cmd) > "/dev/stderr";
	  printf("**** ------- ****\n") > "/dev/stderr";
	  exit(1);
	}

	if (rc == 2) {
	  printf("\n**** WARNING ****\n") > "/dev/stderr";
	  printf("* No binary packages directory found\n") > "/dev/stderr";
	  printf("* List of binary packages will not be generated\n") > "/dev/stderr";
	  printf("**** ------- ****\n") > "/dev/stderr";
	  exit(0);
	}

	printf("# Loading binary package cache file...\n\n");
	load_cache_file( PACKAGES "/.pkgcache" );
	printf("\n");

	for(pkg in noftp_list) {
		printf("# NO_BIN_ON_FTP (%s) = %s\nrm %s/%s\n\n",
			pkgpath_list[pkg], noftp_list[pkg], PACKAGES, pkg);
	}

	if( notify ) {
		printf("\n# NOTIFY a person that this script should be run\n\n");
	}
}

function fatal_check_file(file, cmd){
	cmd="test -f " file ;
	if (debug) printf("Execute:  %s\n",cmd);
	if (system(cmd) != 0) {
		printf("**** FATAL ****\nRequired file %s does not exist\n",
		       file) > "/dev/stderr";
		printf("**** ------- ****\n") > "/dev/stderr";
		close("/dev/stderr");
		exit(1);
	}
}


function load_cache_file( file, pkgfile, noftp, pkgpath, wk, rx ) {
  printf("#    * %s\n", file);
  fatal_check_file( file );

  # read the cache file
  while( getline < file ) {

    # if this line points to another cache file, then recursively
    # load it
    if( $0 ~ /^pkgcache_cachefile/ ) {
      if( debug ) printf("# Found pkgcache_cachefile line.\n");
      load_cache_file( $2 );
    } else if( $0 ~/^pkgcache_begin /) {
      pkgfile = $2;
      if( debug ) printf("# Starting %s\n", pkgfile);
      pkgpath = "unknown";
      noftp = "unknown";
    } else if( $0 ~/^PKGPATH=/ ) {
      pkgpath = $0;
      gsub(/PKGPATH=[ \t]*/, "", pkgpath);
    } else if( $0 ~/^NO_BIN_ON_FTP=/ ) {
      noftp = $0;
      gsub(/NO_BIN_ON_FTP=[ \t]*/, "", noftp);
    } else if( $0 ~/^pkgcache_end /) {
      if( debug ) printf("# %s, NO_BIN_ON_FTP=%s, PKGPATH=%s\n",
			 pkgfile, noftp, pkpath);

      if(noftp == "") {
	if( debug ) printf("# %s, NOT restricted\n", pkgfile);
      } else if( noftp == "unknown" ) {
	printf("# UNKNOWN value for NO_BIN_ON_FTP: %s/%s\n", PACKAGES, pkgfile);
	notify = 1;
      } else {
 	noftp_list[pkgfile] = noftp;
 	pkgpath_list[pkgfile] = pkgpath;
	notify = 1;
      }


    } else {
      # skip this line
    }
  }

  # close the cache file
  close( file );
}