NetBSD/distrib/sets/join.awk
lukem e2551d1d82 getdirs.awk:
- improve parsing; explicitly skip lines we don't want and use the rest.
- keep track of which items were explicitly listed, and only output directories
  at the END which weren't listed, each with a suffix of  "optional".
- convert to my awk KNF

join.awk:
- when joining, output all of the matching entry from the first file
  and the 2nd & subsequent lines of the entry from the second file.
- convert to my awk KNF

these changes mean that maketars use of pax will result in tar files
with the traditional behaviour of only containing the necessary
directories, rather than all the parent directories required to get to
a particular item.  this latter behaviour was necessary for METALOG
(i.e UNPRIVED) pax .tgz set file generation, until the changes above
fixed it.
2002-05-19 13:32:44 +00:00

59 lines
2.3 KiB
Awk

# $NetBSD: join.awk,v 1.2 2002/05/19 13:32:44 lukem Exp $
#
# Copyright (c) 2002 The NetBSD Foundation, Inc.
# All rights reserved.
#
# This code is derived from software contributed to The NetBSD Foundation
# by Luke Mewburn of Wasabi Systems.
#
# 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.
# 3. All advertising materials mentioning features or use of this software
# must display the following acknowledgement:
# This product includes software developed by the NetBSD
# Foundation, Inc. and its contributors.
# 4. Neither the name of The NetBSD Foundation nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# 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.
#
# join.awk F1 F2
# Similar to join(1), this reads a list of words from F1
# and outputs lines in F2 with a first word that is in F1.
# Neither file needs to be sorted
BEGIN \
{
if (ARGC != 3) {
printf("Usage: join file1 file2\n") >"/dev/stderr"
exit 1
}
while ( (getline < ARGV[1]) > 0)
words[$1] = $0
delete ARGV[1]
}
$1 in words \
{
f1=$1
$1=""
print words[f1] $0
}