From 6efb39a88e9a882d183b58c90dc0bab1bd3fbd88 Mon Sep 17 00:00:00 2001
From: Albert Cheng <acheng@hdfgroup.org>
Date: Mon, 22 Jan 2007 16:36:33 -0500
Subject: [svn-r13168] Purpose: bug fix.

Problem:
1. The last fix using "svn --version" did not work since the source code
is shared between different machines which have different svn versions.
Changed the code to inspect the .svn/entries content to guess what version
of svn uses.  From that to decide which GETSVNENTRIES to use.

2. GETSVNENTRIES_14 had two errors:
2.a., % as 1,$ is actually not recognized by ed.  Changed that to "1,$s/..."
  but that got mixed up with $ being a shell meta-character.  Changed to use
  g command instead. (Could have use \ to escape $ but g is cleaner.)
2.b., Some directories have no files but sub-directories.  The ed script
  might end up with an empty file in some steps and ed does not like to
  run g command with an empty file.  Fixed it by adding a dummy blank line.

Platforms tested:
Osage and copper.
---
 bin/chkmanifest | 37 ++++++++++++++++++++++---------------
 1 file changed, 22 insertions(+), 15 deletions(-)

diff --git a/bin/chkmanifest b/bin/chkmanifest
index 81a911f..bcb9dc4 100755
--- a/bin/chkmanifest
+++ b/bin/chkmanifest
@@ -62,6 +62,9 @@ GETSVNENTRIES_14 ()
 # 2. find them by looking for "file" first, then mark its preceding line as
 #    wanted.
 # 3. remove all non-marked line.
+# 4. insert a blank line because some entries files has no kind="file"
+#    entry and ed does not like to do g on an empty file.
+# 5. remove the marks.
 {
 SVNENTRY=/tmp/H5_SVNENTRY.$$
 cp $1/entries $SVNENTRY
@@ -69,7 +72,10 @@ chmod u+w $SVNENTRY	# entries file is not writable.
 ed - $SVNENTRY <<EOF
 g/^file$/-s/^/%WANTED%/
 v/%WANTED%/d
-%s/%WANTED%//
+a
+
+.
+g/^%WANTED%/s///
 w
 q
 EOF
@@ -111,21 +117,22 @@ for file in `cat $MANIFEST`; do
     fi
 done
 
-# According to svn version, figure out the right version of GETSVNENTRIES
-# to use.
-svnversion=`svn --version --quiet`
-
-case "$svnversion" in
-1.4.*)
-    getsvnentries=GETSVNENTRIES_14
-    ;;
-1.3.*)
-    getsvnentries=GETSVNENTRIES_13
-    ;;
-*)	#default to 1.3
+# Inspect the .svn/entries to figure out what version of svn file entry is
+# used.
+# The following algorithm is formed via reverse engineering.
+# I don't know what the official svn format is if such a specification exists.
+# Algorithm:
+# If the first line of the file has 'xml version="1.0"' in it, it is created
+# by svn 1.3 or older; else if it has '^file$' in it, it is created by svn 1.4.
+svn_entry_file=.svn/entries
+if head -1 $svn_entry_file | grep 'xml version="1.0"' > /dev/null 2>&1;then
     getsvnentries=GETSVNENTRIES_13
-    ;;
-esac
+elif grep '^file$' $svn_entry_file > /dev/null 2>&1; then
+    getsvnentries=GETSVNENTRIES_14
+else
+    echo "Unknow svn entries format. Aborted"
+    exit 1
+fi
 
 for svn in `find . -type d -name .svn -print`; do
     path=`echo $svn |sed 's/\/.svn//'`
-- 
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