[svn-r15428] http://bugzilla.hdfgroup.uiuc.edu/show_bug.cgi?id=1170

Summary: when using h5diff to compare the results of h5repack (or other tools that copy one HDF5 file to another), a new option is needed to allow h5diff to make an "absolute" comparison of the 2 files. This is the "contents" mode explained in the usage below.

If this mode is present, objects in both files must match (must be exactly the same). If this does not happen, the tool returns an error code of 1 (instead of the success code of 0)

Changes to the h5repack test script: the call to h5diff was changed to include -c (maintaining the previous -q). 

tested: windows, linux, solaris

tools/h5diff/testfiles/h5diff_604.txt

@@ -10,6 +10,7 @@ usage: h5diff [OPTIONS] file1 file2 [obj1[obj2]]
    -r, --report            Report mode. Print differences
    -v, --verbose           Verbose mode. Print differences, list of objects
    -q, --quiet             Quiet mode. Do not do output
+   -c, --contents          Contents mode. Objects in both files must match
    -n C, --count=C         Print differences up to C number
    -d D, --delta=D         Print difference when greater than limit D
    -p R, --relative=R      Print difference when greater than relative limit R
@@ -24,6 +25,19 @@ usage: h5diff [OPTIONS] file1 file2 [obj1[obj2]]
   -r Report mode: print the above plus the differences
   -v Verbose mode: print the above plus a list of objects and warnings
   -q Quiet mode: do not print output
+  -c Contents mode: objects in both files must match
+
+ Compare criteria
+
+ If no objects [obj1[obj2]] are specified, h5diff only compares objects
+   with the same absolute path in both files. However,
+   when the -c flag is present, (contents mode) the objects in file1
+   must match exactly the objects in file2
+
+ The compare criteria is:
+   1) datasets: numerical array differences 2) groups: name string difference
+   3) datatypes: the return value of H5Tequal 2) links: name string difference
+   of the linked value
 
  Return exit code:
 
@@ -49,8 +63,3 @@ usage: h5diff [OPTIONS] file1 file2 [obj1[obj2]]
 
     to compare '/g1/dset1' and '/g1/dset2' in the same file
 
- If no objects [obj1[obj2]] are specified, h5diff only compares objects
-   with the same absolute path in both files. The compare criteria is:
-   1) datasets: numerical array differences 2) groups: name string difference
-   3) datatypes: the return value of H5Tequal 2) links: name string difference
-   of the linked value