freebsd-src/scripts/commitcheck.sh
Damian Szuberski 836136961a
Add ShellCheck's --enable=all inside scripts/
Strengthen static code analysis for shell scripts.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Signed-off-by: szubersk <szuberskidamian@gmail.com>
Closes #12914
2022-01-13 11:09:19 -07:00

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#!/bin/sh
REF="HEAD"
# test commit body for length
# lines containing urls are exempt for the length limit.
test_commit_bodylength()
{
length="72"
body=$(git log --no-show-signature -n 1 --pretty=%b "$REF" | grep -Ev "http(s)*://" | grep -E -m 1 ".{$((length + 1))}")
if [ -n "$body" ]; then
echo "error: commit message body contains line over ${length} characters"
return 1
fi
return 0
}
# check for a tagged line
check_tagged_line()
{
regex='^[[:space:]]*'"$1"':[[:space:]][[:print:]]+[[:space:]]<[[:graph:]]+>$'
foundline=$(git log --no-show-signature -n 1 "$REF" | grep -E -m 1 "$regex")
if [ -z "$foundline" ]; then
echo "error: missing \"$1\""
return 1
fi
return 0
}
# check commit message for a normal commit
new_change_commit()
{
error=0
# subject is not longer than 72 characters
long_subject=$(git log --no-show-signature -n 1 --pretty=%s "$REF" | grep -E -m 1 '.{73}')
if [ -n "$long_subject" ]; then
echo "error: commit subject over 72 characters"
error=1
fi
# need a signed off by
if ! check_tagged_line "Signed-off-by" ; then
error=1
fi
# ensure that no lines in the body of the commit are over 72 characters
if ! test_commit_bodylength ; then
error=1
fi
return "$error"
}
is_coverity_fix()
{
# subject starts with Fix coverity defects means it's a coverity fix
subject=$(git log --no-show-signature -n 1 --pretty=%s "$REF" | grep -E -m 1 '^Fix coverity defects')
if [ -n "$subject" ]; then
return 0
fi
return 1
}
coverity_fix_commit()
{
error=0
# subject starts with Fix coverity defects: CID dddd, dddd...
subject=$(git log --no-show-signature -n 1 --pretty=%s "$REF" |
grep -E -m 1 'Fix coverity defects: CID [[:digit:]]+(, [[:digit:]]+)*')
if [ -z "$subject" ]; then
echo "error: Coverity defect fixes must have a subject line that starts with \"Fix coverity defects: CID dddd\""
error=1
fi
# need a signed off by
if ! check_tagged_line "Signed-off-by" ; then
error=1
fi
# test each summary line for the proper format
OLDIFS=$IFS
IFS='
'
for line in $(git log --no-show-signature -n 1 --pretty=%b "$REF" | grep -E '^CID'); do
if ! echo "$line" | grep -qE '^CID [[:digit:]]+: ([[:graph:]]+|[[:space:]])+ \(([[:upper:]]|\_)+\)'; then
echo "error: commit message has an improperly formatted CID defect line"
error=1
fi
done
IFS=$OLDIFS
# ensure that no lines in the body of the commit are over 72 characters
if ! test_commit_bodylength; then
error=1
fi
return "$error"
}
if [ -n "$1" ]; then
REF="$1"
fi
# if coverity fix, test against that
if is_coverity_fix; then
if ! coverity_fix_commit; then
exit 1
else
exit 0
fi
fi
# have a normal commit
if ! new_change_commit ; then
exit 1
fi
exit 0