#!/bin/bash if [ "$#" -lt 1 ]; then printf 'Usage: %s \n', "$0" 1>&2 exit 1 fi commits=$(git rev-list --no-merges -i --grep='^[[:space:]]*Fixes:' "$@") if [ -z "$commits" ]; then exit 0 fi Linus_tree="${HOME}/kernels/linus.git" done_file="${HOME}/tmp/check_fixes_done" split_re='^([[:xdigit:]]+)[[:space:]]+(.*)$' nl=$'\n' strip_spaces() { [[ "$1" =~ ^[[:space:]]*(.*[^[:space:]])[[:space:]]*$ ]] echo "${BASH_REMATCH[1]}" } for c in $commits; do if [ -r "$done_file" ] && grep -q -Fx "$c" "$done_file"; then continue fi commit_msg="In commit $(git log -1 --format='%h ("%s")' $c) " fixes_lines=$(git log -1 --format='%B' "$c" | grep -i '^[[:space:]]*Fixes:') while read fline; do f=$(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 re='^(['\''"])(.*)\1$' if [[ "$subject" =~ $re ]]; then subject="${BASH_REMATCH[2]}" elif [[ "$subject" =~ ^[\'\"](.*)$ ]]; 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