Git unsigned merge hook

funcs.sh

function error_message {
    echo -e >&2 \
        "---------------------------------------------------------------------------------------------------------" \
        "\n$1" \
        "\n---------------------------------------------------------------------------------------------------------"
}

function undo_merge {
    error_message "Undoing your merge. Please fix the problem and try again."
    git reset --hard ORIG_HEAD
}

function only_validate_master {
    branch=`git branch 2>/dev/null | grep '^*' | cut -f2- -d' '`
    if [ "$branch" != "master" ]; then
        exit 0
    fi
}

function only_validate_merge_into_master {
    only_validate_master
    # If we are merging from origin/master, don't run
    if [ -z "`git diff HEAD origin/master`" ]; then
        exit 0;
    fi
}

function check_commit_message_against_regexp {
    msg=`git log HEAD^..HEAD`
    if [ -z "`echo "$msg" | grep -i "$1"`" ]; then
        error_message "$2"
        exit 1
    fi
}

post-merge

#!/bin/bash

##
## .git/hooks/post-merge
##
## Runs all special post-merge hooks
##

this_dir="$(dirname "$(test -L "$0" && readlink "$0" || echo "$0")")"
source "$this_dir/funcs.sh"
"$this_dir/require_signoff" && "$this_dir/require_ticket_number" || undo_merge

require_signoff

#!/bin/bash

##
## Checks for commits merged to master without a signoff
##

this_dir="$(dirname "$(test -L "$0" && readlink "$0" || echo "$0")")"
source "$this_dir/funcs.sh"

only_validate_merge_into_master
check_commit_message_against_regexp '^[[:space:]]*Signed-off-by: ' 'It looks like you just merged an unsigned commit! You might want to fix that before you push.'

require_ticket_number

#!/bin/bash

##
## Checks for commits merged to master without a ticket number
##

this_dir="$(dirname "$(test -L "$0" && readlink "$0" || echo "$0")")"
source "$this_dir/funcs.sh"

only_validate_merge_into_master
check_commit_message_against_regexp 'fixes #[[:digit:]]\{1,5\}' 'It looks like you just merged a commit with no ticket number! You might want to fix that before you push.'