git am-and-tags - Apply patches and tags

git-am-and-tags

#!/bin/bash -e

# Apply patches and tags directly from e.g. mutt
# Add following to .muttrc
# macro index,pager A "| git am-and-tags"

MSG=`cat; echo x`
SUBJECT=$(echo "${MSG%x}" |grep '^Subject:')

if [[ $SUBJECT == 'Subject: ['* ]]; then
    git am -s <<< ${MSG%x}
else
    TAGS=$(grep -e '^Acked-by' -e '^Reviewed-by' -e '^Tested-by' <<< ${MSG%x})

    while read -r TAG; do
        GIT_EDITOR="git interpret-trailers --where after --if-exists addIfDifferent --if-missing doNothing --in-place --trailer '${TAG}'" git commit --amend
        GIT_EDITOR="git interpret-trailers --where start --if-exists addIfDifferent --in-place --trailer '${TAG}'" git commit --amend
    done <<< "$TAGS"
fi