From c0b92b7ce22066da528d2a9571204b85af60fa0e Mon Sep 17 00:00:00 2001
From: dmcmahill <dmcmahill@pkgsrc.org>
Date: Wed, 21 Jun 2006 14:13:27 +0000
Subject: When producing the list of directories containing binary packages, do
 some extra processing to ensure that we have a list of unique directories.
 Otherwise we end up with two problems:

  - cache files get rebuilt all the time because they get built once for each
    path to the directory in question and since the path ends up in the cache,
    it is always declared out of date.

  - we end up with multiple links to the same binary package in the README.html
    files.

Committed during the freeze becuase this is a real bug which is encountered
daily.
---
 mk/scripts/binpkg-cache | 32 +++++++++++++++++++++++++++++---
 1 file changed, 29 insertions(+), 3 deletions(-)

diff --git a/mk/scripts/binpkg-cache b/mk/scripts/binpkg-cache
index 93b4c81c44c..444fd63d358 100755
--- a/mk/scripts/binpkg-cache
+++ b/mk/scripts/binpkg-cache
@@ -1,6 +1,6 @@
 #!/bin/sh
 #
-# $NetBSD: binpkg-cache,v 1.9 2006/06/08 11:18:04 dmcmahill Exp $
+# $NetBSD: binpkg-cache,v 1.10 2006/06/21 14:13:27 dmcmahill Exp $
 #
 # Script for generating a cache file with information about
 # all binary packages contained in a directory.
@@ -67,6 +67,7 @@ if test $? -ne 0 ; then
 	echo "${tmpd} already exists"
 	exit 1
 fi
+all_dirs=${tmpd}/all_dirs
 
 prog=$0
 
@@ -132,6 +133,7 @@ all_cache_files=""
 #
 
 process_binpkg_dir(){
+	rdir=`${GREP} "^${d} " ${all_dirs} | ${AWK} '{print $2}'`
 	need_update=no
 	if test -f ${d}/${cachefile} ; then
 		stale_entries=`${FIND} ${d} -type f -name \*${PKG_SUFX} -newer ${d}/${cachefile} -print`
@@ -149,7 +151,7 @@ process_binpkg_dir(){
 		# get the list of what pkgs belong in the cache
 		rm -f ${tmpd}/pkg_list ${tmpd}/cache_pkg_list
 		${FIND} ${d}/ -name \*${PKG_SUFX} -print | \
-			${SED} -e "s;^${PACKAGES}/*;;g" -e 's;//;/;g' | \
+			${SED} -e "s;^${d}/*;${rdir}/;g" -e 's;//;/;g' | \
 			${SORT} > ${tmpd}/pkg_list
 
 		# and get the list of what is in the cache
@@ -161,6 +163,12 @@ process_binpkg_dir(){
 				echo "      No extra cache entries in ${d}/${cachefile}"
 			fi
 		else
+			if test "X${DEBUG}" = "Xyes" ; then
+				echo "Package list:"
+				cat  ${tmpd}/pkg_list
+				echo "Cache list:"
+				cat ${tmpd}/cache_pkg_list
+			fi
 			echo "      Entries found in ${d}/${cachefile} but no packages found"
 			need_update=yes
 		fi
@@ -197,7 +205,7 @@ process_binpkg_dir(){
 	if test "X${need_update}" = "Xyes" ; then
 		echo "pkgcache_version ${cacheversion}" > ${tmpd}/${cachefile}
 		for f in ${d}/*${PKG_SUFX} ; do
-			fn=`echo $f | ${SED} "s;^${PACKAGES}/*;;g"`
+			fn=`grep "^${d} " ${all_dirs} | ${AWK} '{print $2}'`"/"`basename ${f}`
 			if test "X${DEBUG}" = "Xyes" ; then
 				echo "     Adding ${fn} (${f}) to the cache"
 			fi
@@ -339,7 +347,25 @@ fi
 
 # put a trailing / after ${PACKAGES} in case ${PACKAGES} is 
 # a link.
+
+# pass 1, we find all directories under PACKAGES.  Note that this
+# may contain some directories more than once depending on what sort
+# of soft links may be in place
+rm -f ${all_dirs}.tmp
 for d in `${FIND} ${PACKAGES}/ -type d -follow -print` ; do
+	cname=`(cd ${d} && pwd -P)`
+	rname=`echo ${d} | ${SED} "s;^${PACKAGES}/*;;g"`
+	echo "${cname} ${rname}" >> ${all_dirs}.tmp
+done
+${SORT} -u -k1,1 ${all_dirs}.tmp > ${all_dirs}
+if test "X${DEBUG}" = "Xyes" ; then
+	echo "Full directory list:"
+	cat ${all_dirs}.tmp
+	echo "Unique directory list:"
+	cat ${all_dirs}
+fi
+
+for d in `${AWK} '{print $1}' ${all_dirs}` ; do
 	if test "X${DEBUG}" = "Xyes" ; then
 		echo "${prompt}Processing directory ${d}"
 	fi
-- 
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