only update mptopdf dir when there are changes to

the files; the mtimes change every day.


git-svn-id: svn://tug.org/texlive/trunk@55226 c570f23f-e606-0410-a88d-b1316a301751

1 files changed, 16 insertions, 6 deletions

diff --git a/Master/tlpkg/libexec/mptopdf-extract b/Master/tlpkg/libexec/mptopdf-extract
index 90d6d126c60..33a2a162439 100755
--- a/Master/tlpkg/libexec/mptopdf-extract
+++ b/Master/tlpkg/libexec/mptopdf-extract
@@ -1,5 +1,6 @@
 #!/bin/sh
 # $Id$
+# Public domain. Originally written by Karl Berry, 2013.
 # Get the mptopdf files out of the context zip.  We distribute mptopdf
 # as a separate package, since it can be used with LaTeX.  See
 # description in mptopdf.tlpsrc for details.
@@ -26,9 +27,18 @@ fi
 
 # Working directory.
 workdir=/home/ftp/tex/mptopdf
-cd $workdir || exit 1
-rm -rf $workdir.prev
-mkdir $workdir.prev
-mv * $workdir.prev
-unzip -q $context_zip $files
-ls -lt | head -3
+rm -rf $workdir.new
+mkdir $workdir.new
+cd $workdir.new || exit 1
+unzip -q $context_zip $files || exit 1
+
+cd ..
+if diff -ru 0 $workdir $workdir.new; then
+  rm -rf $workdir.new # same, nothing to do.
+else
+  # changed files, so work -> prev, new -> work.
+  # differences shown above.
+  rm -rf $workdir.prev
+  mv $workdir $workdir.prev || exit 1
+  mv $workdir.new $workdir || exit 1
+fi