scripts/commitcheck.sh

   1 #!/bin/sh
   2
   3 REF="HEAD"
   4
   5 # test commit body for length
   6 # lines containing urls are exempt for the length limit.
   7 test_commit_bodylength()
   8 {
   9     length="72"
  10     body=$(git log --no-show-signature -n 1 --pretty=%b "$REF" | grep -Ev "http(s)*://" | grep -E -m 1 ".{$((length + 1))}")
  11     if [ -n "$body" ]; then
  12         echo "error: commit message body contains line over ${length} characters"
  13         return 1
  14     fi
  15
  16     return 0
  17 }
  18
  19 # check for a tagged line
  20 check_tagged_line()
  21 {
  22     regex='^[[:space:]]*'"$1"':[[:space:]][[:print:]]+[[:space:]]<[[:graph:]]+>$'
  23     foundline=$(git log --no-show-signature -n 1 "$REF" | grep -E -m 1 "$regex")
  24     if [ -z "$foundline" ]; then
  25         echo "error: missing \"$1\""
  26         return 1
  27     fi
  28
  29     return 0
  30 }
  31
  32 # check commit message for a normal commit
  33 new_change_commit()
  34 {
  35     error=0
  36
  37     # subject is not longer than 72 characters
  38     long_subject=$(git log --no-show-signature -n 1 --pretty=%s "$REF" | grep -E -m 1 '.{73}')
  39     if [ -n "$long_subject" ]; then
  40         echo "error: commit subject over 72 characters"
  41         error=1
  42     fi
  43
  44     # need a signed off by
  45     if ! check_tagged_line "Signed-off-by" ; then
  46         error=1
  47     fi
  48
  49     # ensure that no lines in the body of the commit are over 72 characters
  50     if ! test_commit_bodylength ; then
  51         error=1
  52     fi
  53
  54     return "$error"
  55 }
  56
  57 is_coverity_fix()
  58 {
  59     # subject starts with Fix coverity defects means it's a coverity fix
  60     subject=$(git log --no-show-signature -n 1 --pretty=%s "$REF" | grep -E -m 1 '^Fix coverity defects')
  61     if [ -n "$subject" ]; then
  62         return 0
  63     fi
  64
  65     return 1
  66 }
  67
  68 coverity_fix_commit()
  69 {
  70     error=0
  71
  72     # subject starts with Fix coverity defects: CID dddd, dddd...
  73     subject=$(git log --no-show-signature -n 1 --pretty=%s "$REF" |
  74         grep -E -m 1 'Fix coverity defects: CID [[:digit:]]+(, [[:digit:]]+)*')
  75     if [ -z "$subject" ]; then
  76         echo "error: Coverity defect fixes must have a subject line that starts with \"Fix coverity defects: CID dddd\""
  77         error=1
  78     fi
  79
  80     # need a signed off by
  81     if ! check_tagged_line "Signed-off-by" ; then
  82         error=1
  83     fi
  84
  85     # test each summary line for the proper format
  86     OLDIFS=$IFS
  87     IFS='
  88 '
  89     for line in $(git log --no-show-signature -n 1 --pretty=%b "$REF" | grep -E '^CID'); do
  90         if ! echo "$line" | grep -qE '^CID [[:digit:]]+: ([[:graph:]]+|[[:space:]])+ \(([[:upper:]]|\_)+\)'; then
  91             echo "error: commit message has an improperly formatted CID defect line"
  92             error=1
  93         fi
  94     done
  95     IFS=$OLDIFS
  96
  97     # ensure that no lines in the body of the commit are over 72 characters
  98     if ! test_commit_bodylength; then
  99         error=1
 100     fi
 101
 102     return "$error"
 103 }
 104
 105 if [ -n "$1" ]; then
 106     REF="$1"
 107 fi
 108
 109 # if coverity fix, test against that
 110 if is_coverity_fix; then
 111     if ! coverity_fix_commit; then
 112         exit 1
 113     else
 114         exit 0
 115     fi
 116 fi
 117
 118 # have a normal commit
 119 if ! new_change_commit ; then
 120     exit 1
 121 fi
 122
 123 exit 0