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#! /bin/sh
t=__wt.$$
a=__wt.$$.a
b=__wt.$$.b
trap 'rm -rf $a $b $t' 0 1 2 3 13 15
# Find the top-level WiredTiger directory and move to there.
top=`git rev-parse --show-toplevel` && cd $top || exit 1
echo "$0: running scan-build in $PWD"
# Clang isn't installed in any standard place, find a binary we can use.
# If the caller gives us $SCANBUILD, check for $SCANCOMPILER and default
# to "clang".
scan="$SCANBUILD"
test -z "$scan" || compiler="${SCANCOMPILER:-clang}"
if test -z "$scan" &&
test -x /usr/bin/clang &&
test -x /usr/bin/scan-build; then
compiler="/usr/bin/clang"
scan="/usr/bin/scan-build"
fi
if test -z "$scan"; then
echo "$0: no clang compiler and scan-build programs found"
echo "$0: set \$SCANCOMPILER=/path/clang and \$SCANBUILD=/path/scan-build to continue"
exit 1
fi
echo "$0: compiler: $compiler"
echo "$0: scan-build: $scan"
# Remove old reports.
rm -rf clangScanBuildReports && mkdir clangScanBuildReports
sh autogen.sh > /dev/null || exit 1
args="-o clangScanBuildReports"
args="$args --use-cc=$compiler"
args="$args -disable-checker core.NullDereference"
$scan $args ./configure 'CFLAGS=-g' \
--disable-shared --enable-diagnostic --enable-strict > /dev/null
$scan $args make -j 8 wt 1>/dev/null 2>$t
make -j 8 distclean > /dev/null
grep 'No bugs found' $t > /dev/null && exit 0
# Compare the set of errors/warnings and exit success when they're expected.
# clang-scan outputs errors/warnings with a leading file path followed by a
# colon, followed by the string "error:" or "warning:".
cat dist/s_clang-scan.diff |
egrep '^[a-z\./].*error: |^[a-z\./].*warning: ' | sed -e 's/:.*:.*://' | sort > $a
cat $t |
egrep '^[a-z\./].*error: |^[a-z\./].*warning: ' | sed -e 's/:.*:.*://' | sort > $b
diff $a $b > /dev/null && exit 0
echo "=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-="
echo 'scan-build output differs from expected:'
echo '<<<<<<<<<< Expected >>>>>>>>>> Current'
echo "=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-="
diff dist/s_clang-scan.diff $t
exit 1
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