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|
#!/bin/bash
if [ "$#" -lt 1 ]; then
printf 'Usage: %s <commit range>\n', "$0" 1>&2
exit 1
fi
commits=$(git rev-list --no-merges -i --grep='^[[:space:]]*Fixes:' "$@")
if [ -z "$commits" ]; then
exit 0
fi
# This should be a git tree that contains *only* Linus' tree
Linus_tree="${HOME}/kernels/linus.git"
split_re='^([[:xdigit:]]+)[[:space:]]+(.*)$'
nl=$'\n'
# Strip the leading and training spaces from a string
strip_spaces()
{
[[ "$1" =~ ^[[:space:]]*(.*[^[:space:]])[[:space:]]*$ ]]
echo "${BASH_REMATCH[1]}"
}
for c in $commits; do
commit_log=$(git log -1 --format='%h ("%s")' "$c")
commit_msg="In commit
$commit_log
"
fixes_lines=$(git log -1 --format='%B' "$c" |
grep -i '^[[:space:]]*Fixes:')
while read -r fline; do
f=$(echo "$fline" | sed 's/^[[:space:]]*Fixes:[[:space:]]*//i')
fixes_msg="Fixes tag
$fline
has these problem(s):
"
sha=
subject=
msg=
[[ "$f" =~ $split_re ]]
sha="${BASH_REMATCH[1]}"
subject="${BASH_REMATCH[2]}"
if [ -z "$sha" ]; then
printf '%s%s - %s\n' "$commit_msg" "$fixes_msg" 'No SHA1 recognised'
commit_msg=''
continue
fi
if ! git rev-parse -q --verify "$sha" >/dev/null; then
printf '%s%s - %s\n' "$commit_msg" "$fixes_msg" 'Target SHA1 does not exist'
commit_msg=''
continue
fi
if [ "${#sha}" -lt 12 ]; then
msg="${msg:+${msg}${nl}} - SHA1 should be at least 12 digits long"
fi
# reduce the subject to the part between () if there
if [[ "$subject" =~ ^\((.*)\) ]]; then
subject="${BASH_REMATCH[1]}"
elif [[ "$subject" =~ ^\((.*) ]]; then
subject="${BASH_REMATCH[1]}"
msg="${msg:+${msg}${nl}} - Subject has leading but no trailing parentheses"
fi
# strip matching quotes at the start and end of the subject
# the unicode characters in the classes are
# U+201C LEFT DOUBLE QUOTATION MARK
# U+201D RIGHT DOUBLE QUOTATION MARK
# U+2018 LEFT SINGLE QUOTATION MARK
# U+2019 RIGHT SINGLE QUOTATION MARK
re1=$'^[\"\u201C](.*)[\"\u201D]$'
re2=$'^[\'\u2018](.*)[\'\u2019]$'
re3=$'^[\"\'\u201C\u2018](.*)$'
if [[ "$subject" =~ $re1 ]]; then
subject="${BASH_REMATCH[1]}"
elif [[ "$subject" =~ $re2 ]]; then
subject="${BASH_REMATCH[1]}"
elif [[ "$subject" =~ $re3 ]]; then
subject="${BASH_REMATCH[1]}"
msg="${msg:+${msg}${nl}} - Subject has leading but no trailing quotes"
fi
subject=$(strip_spaces "$subject")
target_subject=$(git log -1 --format='%s' "$sha")
target_subject=$(strip_spaces "$target_subject")
# match with ellipses
case "$subject" in
*...) subject="${subject%...}"
target_subject="${target_subject:0:${#subject}}"
;;
...*) subject="${subject#...}"
target_subject="${target_subject: -${#subject}}"
;;
*\ ...\ *)
s1="${subject% ... *}"
s2="${subject#* ... }"
subject="$s1 $s2"
t1="${target_subject:0:${#s1}}"
t2="${target_subject: -${#s2}}"
target_subject="$t1 $t2"
;;
esac
subject=$(strip_spaces "$subject")
target_subject=$(strip_spaces "$target_subject")
if [ "$subject" != "${target_subject:0:${#subject}}" ]; then
msg="${msg:+${msg}${nl}} - Subject does not match target commit subject"
fi
lsha=$(cd "$Linus_tree" && git rev-parse -q --verify "$sha")
if [ -z "$lsha" ]; then
count=$(git rev-list --count "$sha".."$c")
if [ "$count" -eq 0 ]; then
msg="${msg:+${msg}${nl}} - Target is not an ancestor of this commit"
fi
fi
if [ "$msg" ]; then
printf '%s%s%s\n' "$commit_msg" "$fixes_msg" "$msg"
commit_msg=''
fi
done <<< "$fixes_lines"
done
exit 0
|
