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Add a script to compare directories full of gcov output

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We can't just use "diff", since we don't care about changes in line
numbers, or changes in the exact number of times a line was called.
We just care about changes that make lines covered or non-coverd.  So
pre-process the files before calling diff.
This commit is contained in:
Nick Mathewson 2013-07-09 12:54:39 -04:00
parent 17e9fc09c3
commit 4753ad4f1d
1 changed files with 17 additions and 0 deletions
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contrib/cov-diff Executable file
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#!/bin/sh
# Copyright 2013 The Tor Project, Inc.
# See LICENSE for licensing information.
# cov-diff -- compare two directories full of gcov files.
DIRA="$1"
DIRB="$2"
for A in $DIRA/*; do
B=$DIRB/`basename $A`
perl -pe 's/^\s*\d+:/ 1:/; s/^([^:]+:)[\d\s]+:/$1/;' "$A" > "$A.tmp"
perl -pe 's/^\s*\d+:/ 1:/; s/^([^:]+:)[\d\s]+:/$1/;' "$B" > "$B.tmp"
diff -u "$A.tmp" "$B.tmp"
rm "$A.tmp" "$B.tmp"
done