svn commit: r1214011 - in /hive/trunk: contrib/src/test/results/clientnegative/ contrib/src/test/results/clientpositive/ hbase-handler/src/test/results/ ql/src/test/org/apache/hadoop/hive/ql/ ql/src/test/results/clientnegative/ ql/src/test/results/clie...

[jv...@apache.org]

Author: jvs
Date: Wed Dec 14 00:59:16 2011
New Revision: 1214011

URL: http://svn.apache.org/viewvc?rev=1214011&view=rev
Log:
HIVE-1040 [jira] use sed rather than diff for masking out noise in diff-based
tests
(Marek Sapota via John Sichi)

Summary:
Replace diff -I with regex masking in Java

The current diff -I approach has two problems:  (1) it does not allow resolution
finer than line-level, so it's impossible to mask out pattern occurrences within
a line, and (2) it produces unmasked files, so if you run diff on the command
line to compare the result .q.out with the checked-in file, you see the noise.

My suggestion is to first run sed to replace noise patterns with an
unlikely-to-occur string like ZYZZYZVA, and then diff the pre-masked files
without using any -I.

This would require a one-time hit to update all existing .q.out files so that
they would contain the pre-masked results.

Test Plan: EMPTY

Reviewers: JIRA, jsichi

Reviewed By: jsichi

CC: jsichi

Differential Revision: 597



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