git.ozlabs.org Git - next-scripts/blob - check_fixes

   1 #!/bin/bash
   2
   3 if [ "$#" -lt 1 ]; then
   4         printf 'Usage: %s <commit range>\n', "$0" 1>&2
   5         exit 1
   6 fi
   7
   8 commits=$(git rev-list --no-merges -i --grep='^[[:space:]]*Fixes:' "$@")
   9 if [ -z "$commits" ]; then
  10         exit 0
  11 fi
  12
  13 Linus_tree="${HOME}/kernels/linus.git"
  14 done_file="${HOME}/tmp/check_fixes_done"
  15 split_re='^([[:xdigit:]]+)[[:space:]]+(.*)$'
  16 nl=$'\n'
  17
  18 strip_spaces()
  19 {
  20         [[ "$1" =~ ^[[:space:]]*(.*[^[:space:]])[[:space:]]*$ ]]
  21         echo "${BASH_REMATCH[1]}"
  22 }
  23
  24 for c in $commits; do
  25         if [ -r "$done_file" ] && grep -q -Fx "$c" "$done_file"; then
  26                 continue
  27         fi
  28
  29         commit_msg="In commit
  30
  31   $(git log -1 --format='%h ("%s")' $c)
  32
  33 "
  34         fixes_lines=$(git log -1 --format='%B' "$c" |
  35                         grep -i '^[[:space:]]*Fixes:')
  36
  37         while read fline; do
  38                 f=$(echo "$fline" | sed 's/^[[:space:]]*Fixes:[[:space:]]*//i')
  39                 fixes_msg="Fixes tag
  40
  41   $fline
  42
  43 has these problem(s):
  44
  45 "
  46                 sha=
  47                 subject=
  48                 msg=
  49                 [[ "$f" =~ $split_re ]]
  50                 sha="${BASH_REMATCH[1]}"
  51                 subject="${BASH_REMATCH[2]}"
  52
  53                 if [ -z "$sha" ]; then
  54                         printf '%s%s  - %s\n' "$commit_msg" "$fixes_msg" 'No SHA1 recognised'
  55                         commit_msg=''
  56                         continue
  57                 fi
  58                 if ! git rev-parse -q --verify "$sha" >/dev/null; then
  59                         printf '%s%s  - %s\n' "$commit_msg" "$fixes_msg" 'Target SHA1 does not exist'
  60                         commit_msg=''
  61                         continue
  62                 fi
  63
  64                 if [ "${#sha}" -lt 12 ]; then
  65                         msg="${msg:+${msg}${nl}}  - SHA1 should be at least 12 digits long"
  66                 fi
  67                 # reduce the subject to the part between () if there
  68                 if [[ "$subject" =~ ^\((.*)\) ]]; then
  69                         subject="${BASH_REMATCH[1]}"
  70                 elif [[ "$subject" =~ ^\((.*) ]]; then
  71                         subject="${BASH_REMATCH[1]}"
  72                         msg="${msg:+${msg}${nl}}  - Subject has leading but no trailing parentheses"
  73                 fi
  74
  75                 # strip matching quotes at the start and end of the subject
  76                 # the second characters in the classes are
  77                 # U+201C LEFT DOUBLE QUOTATION MARK
  78                 # U+201D RIGHT DOUBLE QUOTATION MARK
  79                 # U+2018 LEFT SINGLE QUOTATION MARK
  80                 # U+2019 RIGHT SINGLE QUOTATION MARK
  81                 re1=$'^[\"\u201C](.*)[\"\u201D]$'
  82                 re2=$'^[\'\u2018](.*)[\'\u2019]$'
  83                 re3=$'^[\"\'\u201C\u2018](.*)$'
  84                 if [[ "$subject" =~ $re1 ]]; then
  85                         subject="${BASH_REMATCH[1]}"
  86                 elif [[ "$subject" =~ $re2 ]]; then
  87                         subject="${BASH_REMATCH[1]}"
  88                 elif [[ "$subject" =~ $re3 ]]; then
  89                         subject="${BASH_REMATCH[1]}"
  90                         msg="${msg:+${msg}${nl}}  - Subject has leading but no trailing quotes"
  91                 fi
  92
  93                 subject=$(strip_spaces "$subject")
  94
  95                 target_subject=$(git log -1 --format='%s' "$sha")
  96                 target_subject=$(strip_spaces "$target_subject")
  97
  98                 # match with ellipses
  99                 case "$subject" in
 100                 *...)   subject="${subject%...}"
 101                         target_subject="${target_subject:0:${#subject}}"
 102                         ;;
 103                 ...*)   subject="${subject#...}"
 104                         target_subject="${target_subject: -${#subject}}"
 105                         ;;
 106                 *\ ...\ *)
 107                         s1="${subject% ... *}"
 108                         s2="${subject#* ... }"
 109                         subject="$s1 $s2"
 110                         t1="${target_subject:0:${#s1}}"
 111                         t2="${target_subject: -${#s2}}"
 112                         target_subject="$t1 $t2"
 113                         ;;
 114                 esac
 115                 subject=$(strip_spaces "$subject")
 116                 target_subject=$(strip_spaces "$target_subject")
 117
 118                 if [ "$subject" != "${target_subject:0:${#subject}}" ]; then
 119                         msg="${msg:+${msg}${nl}}  - Subject does not match target commit subject"
 120                 fi
 121                 lsha=$(cd $Linus_tree; git rev-parse -q --verify "$sha")
 122                 if [ -z "$lsha" ]; then
 123                         count=$(git rev-list --count "$sha".."$c")
 124                         if [ "$count" -eq 0 ]; then
 125                                 msg="${msg:+${msg}${nl}}  - Target is not an ancestor of this commit"
 126                         fi
 127                 fi
 128                 if [ "$msg" ]; then
 129                         printf '%s%s%s\n' "$commit_msg" "$fixes_msg" "$msg"
 130                         commit_msg=''
 131                 fi
 132         done <<< "$fixes_lines"
 133 done
 134
 135 exit 0