.git-hooks/commit-msg

   1 #!/bin/sh
   2 #
   3 # An example hook script to check the commit log message.
   4 # Called by git-commit with one argument, the name of the file
   5 # that has the commit message.  The hook should exit with non-zero
   6 # status after issuing an appropriate message if it wants to stop the
   7 # commit.  The hook is allowed to edit the commit message file.
   8 #
   9 # To enable this hook, make this file executable.
  10
  11 # Uncomment the below to add a Signed-off-by line to the message.
  12 # SOB=$(git var GIT_AUTHOR_IDENT | sed -n 's/^\(.*>\).*$/Signed-off-by: \1/p')
  13 # grep -qs "^$SOB" "$1" || echo "$SOB" >> "$1"
  14
  15 # This example catches duplicate Signed-off-by lines.
  16
  17 base_dir=$(dirname $0)
  18 MSG="$1"
  19
  20 abort() {
  21     cp $1 $1.save
  22     cat >&2 <<EOF
  23 Commit aborted, your commit message was saved as '$1.save'.
  24
  25 Reason: $2
  26
  27 EOF
  28     exit 1
  29 }
  30
  31 test "" = "$(grep '^Signed-off-by: ' "$1" |
  32          sort | uniq -c | sed -e '/^[   ]*1[    ]/d')" || {
  33         abort "$1" "Duplicate Signed-off-by lines."
  34 }
  35
  36 # Check that the first line exists, and is not an asterisk
  37
  38 if [ -z "`head -n 1 $1 | grep -v '^[ \t]*\*$'`" ] ; then
  39     abort "$1" "Please provide the general description on the first line."
  40 fi
  41
  42 # ...and that it is not too long
  43
  44 if [ "`head -n 1 $1 | wc -c`" -gt 79 ] ; then
  45     abort "$1" "The first line is too long, please try to fit into 79 characters."
  46 fi
  47
  48 # ...and that it does not continue on the second line
  49 if [ "`wc -l < $1`" -gt 1 -a -n "`head -n 2 $1 | tail -n 1 | sed 's/^#.*//'`" ] ; then
  50     abort "$1" "The second line is not empty - maybe the first line continues there?"
  51 fi
  52
  53 # Check that the message is not a ChangeLog-like one
  54
  55 if [ -n "`head -n 1 $1 | grep '^[0-9]\{4\}-[0-9]\{2\}-[0-9]\{2\}.*<.*@.*>'`" ] ; then
  56     abort "$1" "The commit message looks like ChangeLog, please use the git form."
  57 fi
  58
  59 # Check for whitespace in front of *'s
  60
  61 if [ -n "`sed '/^#/,$d' $1 | grep '^[[:space:]]\+\*.*:'`" -a -z "`grep '^\*' $1`" ] ; then
  62     abort "$1" "Please don't use whitespace in front of '* file: Description.' entries."
  63 fi
  64
  65 #------------------ copied gerrit commit-msg hook to handle ChangeId -->
  66 # From Gerrit Code Review 2.3
  67 #
  68 # Part of Gerrit Code Review (http://code.google.com/p/gerrit/)
  69 #
  70 # Copyright (C) 2009 The Android Open Source Project
  71 #
  72 # Licensed under the Apache License, Version 2.0 (the "License");
  73 # you may not use this file except in compliance with the License.
  74 # You may obtain a copy of the License at
  75 #
  76 # http://www.apache.org/licenses/LICENSE-2.0
  77 #
  78 # Unless required by applicable law or agreed to in writing, software
  79 # distributed under the License is distributed on an "AS IS" BASIS,
  80 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  81 # See the License for the specific language governing permissions and
  82 # limitations under the License.
  83 #
  84
  85 CHANGE_ID_AFTER="Bug|Issue"
  86
  87 # Check for, and add if missing, a unique Change-Id
  88 #
  89 add_ChangeId() {
  90         clean_message=`sed -e '
  91                 /^diff --git a\/.*/{
  92                         s///
  93                         q
  94                 }
  95                 /^Signed-off-by:/d
  96                 /^#/d
  97         ' "$MSG" | git stripspace`
  98         if test -z "$clean_message"
  99         then
 100                 return
 101         fi
 102
 103         id=`grep -i '^Change-Id:' "$MSG" | sed -e "s/.*: I//"`
 104         temp_msg=`grep -v -i '^Change-Id:' "$MSG"`
 105         echo "$temp_msg" > "$MSG"
 106
 107         if  test -z "$id"
 108         then
 109             id=`_gen_ChangeId`
 110         fi
 111         perl -e '
 112                 $MSG = shift;
 113                 $id = shift;
 114                 $CHANGE_ID_AFTER = shift;
 115
 116                 undef $/;
 117                 open(I, $MSG); $_ = <I>; close I;
 118                 s|^diff --git a/.*||ms;
 119                 s|^#.*$||mg;
 120                 exit unless $_;
 121
 122                 @message = split /\n/;
 123                 $haveFooter = 0;
 124                 $startFooter = @message;
 125                 for($line = @message - 1; $line >= 0; $line--) {
 126                         $_ = $message[$line];
 127
 128                         if (/^[a-zA-Z0-9-]+: /) {
 129                                 $haveFooter++;
 130                                 next;
 131                         }
 132                         next if /^[ []/;
 133                         $startFooter = $line if ($haveFooter && /^\r?$/);
 134                         last;
 135                 }
 136
 137                 @footer = @message[$startFooter+1..@message];
 138                 @message = @message[0..$startFooter];
 139                 push(@footer, "") unless @footer;
 140
 141                 for ($line = 0; $line < @footer; $line++) {
 142                         $_ = $footer[$line];
 143                         next if /^($CHANGE_ID_AFTER):/i;
 144                         last;
 145                 }
 146                 splice(@footer, $line, 0, "Change-Id: I$id");
 147
 148                 $_ = join("\n", @message, @footer);
 149                 open(O, ">$MSG"); print O; close O;
 150         ' "$MSG" "$id" "$CHANGE_ID_AFTER"
 151 }
 152 _gen_ChangeIdInput() {
 153         echo "tree `git write-tree`"
 154         if parent=`git rev-parse HEAD^0 2>/dev/null`
 155         then
 156                 echo "parent $parent"
 157         fi
 158         echo "author `git var GIT_AUTHOR_IDENT`"
 159         echo "committer `git var GIT_COMMITTER_IDENT`"
 160         echo
 161         printf '%s' "$clean_message"
 162 }
 163 _gen_ChangeId() {
 164         _gen_ChangeIdInput |
 165         git hash-object -t commit --stdin
 166 }
 167
 168
 169 add_ChangeId
 170 #------------------ copied gerrit commit-msg hook to handle ChangeId <--
 171
 172
 173 exit 0