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 # This should be a git tree that contains *only* Linus' tree
  14 Linus_tree="${HOME}/kernels/linus.git"
  15 split_re1='^([[:xdigit:]]{5,})[[:space:]]+(.*)$'
  16 split_re2='^([[:xdigit:]]{5,})[[:space:]]*(.*)$'
  17 split_re3='^([Cc][Oo][Mm][Mm][Ii][Tt])[[:space:]]*([[:xdigit:]]{5,})[[:space:]]*(.*)$'
  18 nl=$'\n'
  19
  20 # Strip the leading and training spaces from a string
  21 strip_spaces()
  22 {
  23         [[ "$1" =~ ^[[:space:]]*(.*[^[:space:]])[[:space:]]*$ ]]
  24         echo "${BASH_REMATCH[1]}"
  25 }
  26
  27 for c in $commits; do
  28
  29         commit_log=$(git log -1 --format='%h ("%s")' "$c")
  30         commit_msg="In commit
  31
  32   $commit_log
  33
  34 "
  35
  36         fixes_lines=$(git log -1 --format='%B' "$c" |
  37                         grep -i '^[[:space:]]*Fixes:')
  38
  39         while read -r fline; do
  40                 [[ "$fline" =~ ^[[:space:]]*[Ff][Ii][Xx][Ee][Ss]:[[:space:]]*(.*)$ ]]
  41                 f="${BASH_REMATCH[1]}"
  42                 fixes_msg="Fixes tag
  43
  44   $fline
  45
  46 has these problem(s):
  47
  48 "
  49                 sha=
  50                 subject=
  51                 msg=
  52                 [[ "$f" =~ $split_re1 ]]
  53                 sha="${BASH_REMATCH[1]}"
  54                 subject="${BASH_REMATCH[2]}"
  55
  56                 if [ -z "$sha" ]; then
  57                         [[ "$f" =~ $split_re2 ]]
  58                         sha="${BASH_REMATCH[1]}"
  59                         subject="${BASH_REMATCH[2]}"
  60                         if [ -z "$sha" ]; then
  61                                 [[ "$f" =~ $split_re3 ]]
  62                                 sha="${BASH_REMATCH[2]}"
  63                                 subject="${BASH_REMATCH[3]}"
  64                                 msg="${msg:+${msg}${nl}}  - leading word '${BASH_REMATCH[1]}' unexpected"
  65                         fi
  66                 fi
  67                 if [ -z "$sha" ]; then
  68                         printf '%s%s  - %s\n' "$commit_msg" "$fixes_msg" 'No SHA1 recognised'
  69                         commit_msg=''
  70                         continue
  71                 fi
  72                 if ! git rev-parse -q --verify "$sha" >/dev/null; then
  73                         printf '%s%s  - %s\n' "$commit_msg" "$fixes_msg" 'Target SHA1 does not exist'
  74                         commit_msg=''
  75                         continue
  76                 fi
  77
  78                 if [ "${#sha}" -lt 12 ]; then
  79                         msg="${msg:+${msg}${nl}}  - SHA1 should be at least 12 digits long"
  80                 fi
  81                 # reduce the subject to the part between () if there
  82                 if [[ "$subject" =~ ^\((.*)\) ]]; then
  83                         subject="${BASH_REMATCH[1]}"
  84                 elif [[ "$subject" =~ ^\((.*) ]]; then
  85                         subject="${BASH_REMATCH[1]}"
  86                         msg="${msg:+${msg}${nl}}  - Subject has leading but no trailing parentheses"
  87                 fi
  88
  89                 # strip matching quotes at the start and end of the subject
  90                 # the unicode characters in the classes are
  91                 # U+201C LEFT DOUBLE QUOTATION MARK
  92                 # U+201D RIGHT DOUBLE QUOTATION MARK
  93                 # U+2018 LEFT SINGLE QUOTATION MARK
  94                 # U+2019 RIGHT SINGLE QUOTATION MARK
  95                 re1=$'^[\"\u201C](.*)[\"\u201D]$'
  96                 re2=$'^[\'\u2018](.*)[\'\u2019]$'
  97                 re3=$'^[\"\'\u201C\u2018](.*)$'
  98                 if [[ "$subject" =~ $re1 ]]; then
  99                         subject="${BASH_REMATCH[1]}"
 100                 elif [[ "$subject" =~ $re2 ]]; then
 101                         subject="${BASH_REMATCH[1]}"
 102                 elif [[ "$subject" =~ $re3 ]]; then
 103                         subject="${BASH_REMATCH[1]}"
 104                         msg="${msg:+${msg}${nl}}  - Subject has leading but no trailing quotes"
 105                 fi
 106
 107                 subject=$(strip_spaces "$subject")
 108
 109                 target_subject=$(git log -1 --format='%s' "$sha")
 110                 target_subject=$(strip_spaces "$target_subject")
 111
 112                 # match with ellipses
 113                 case "$subject" in
 114                 *...)   subject="${subject%...}"
 115                         target_subject="${target_subject:0:${#subject}}"
 116                         ;;
 117                 ...*)   subject="${subject#...}"
 118                         target_subject="${target_subject: -${#subject}}"
 119                         ;;
 120                 *\ ...\ *)
 121                         s1="${subject% ... *}"
 122                         s2="${subject#* ... }"
 123                         subject="$s1 $s2"
 124                         t1="${target_subject:0:${#s1}}"
 125                         t2="${target_subject: -${#s2}}"
 126                         target_subject="$t1 $t2"
 127                         ;;
 128                 esac
 129                 subject=$(strip_spaces "$subject")
 130                 target_subject=$(strip_spaces "$target_subject")
 131
 132                 if [ "$subject" != "${target_subject:0:${#subject}}" ]; then
 133                         msg="${msg:+${msg}${nl}}  - Subject does not match target commit subject"
 134                 fi
 135                 lsha=$(cd "$Linus_tree" && git rev-parse -q --verify "$sha")
 136                 if [ -z "$lsha" ]; then
 137                         count=$(git rev-list --count "$sha".."$c")
 138                         if [ "$count" -eq 0 ]; then
 139                                 msg="${msg:+${msg}${nl}}  - Target is not an ancestor of this commit"
 140                         fi
 141                 fi
 142                 if [ "$msg" ]; then
 143                         printf '%s%s%s\n' "$commit_msg" "$fixes_msg" "$msg"
 144                         commit_msg=''
 145                 fi
 146         done <<< "$fixes_lines"
 147 done
 148
 149 exit 0