more protection against running from anywhere, etc.

git-svn-id: svn://tug.org/texlive/trunk@1558 c570f23f-e606-0410-a88d-b1316a301751

1 files changed, 11 insertions, 3 deletions

diff --git a/Build/tools/svnchangelog b/Build/tools/svnchangelog
index e655c4d5868..f74a33281ee 100755
--- a/Build/tools/svnchangelog
+++ b/Build/tools/svnchangelog
@@ -24,17 +24,25 @@ echo "$lastlogged" | egrep '^[0-9]+$' >/dev/null \
 
 nextneeded=`expr $lastlogged + 1`
 $debug && echo "lastlogged=$lastlogged, nextneeded=$nextneeded"
+if test -z "$nextneeded"; then
+  echo "$0: empty nextneeded?!"
+  exit 1
+fi
 
 # get the log info since then.
-tlroot=`cd ../.. && pwd`
+tlroot=`cd $mydir/../.. && pwd`
 newlogs=$outdir/newlogdata
-svn log -v -r HEAD:$nextneeded $tlroot >$newlogs
+svn log -v -r HEAD:$nextneeded $tlroot >$newlogs || exit 1
 # with HEAD:next we get the entries newest first, as we want them.
 $debug && ls -l $newlogs
 
 line=`grep '^r[0-9]* |' $newlogs | head -1 | sed 's/^r//'`
 latestchange=`echo "$line" | awk '{print $1}'`
 $debug && echo "latestchange=$latestchange"
+if test -z "$latestchange"; then
+  echo "$0: empty latestchange?!"
+  exit 1
+fi
 
 # done if nothing submitted since last change.
 # or if only one commit has been made, because we ourselves do a commit,
@@ -60,7 +68,7 @@ fi
 # prepend new changes to current log.
 cat $newlogs $outfile >$outfile.new
 
-if false; then  # really debug
+if $debug; then  # really debug
   # show first and last change number in each file.
   for f in $newlogs $outfile $outfile.new; do
     echo