#!/bin/sh -e
#
# Do an stg edit, but adding the first command line argument as
# its own line at the end of the commit message, without any user interaction.
# Further arguments are passed directly to 'stg edit'; the only really
# useful one is to provide the name of the patch to edit.
#
# Useful for
#  stg-add-line 'Reviewed-by: Foo Bar <foo@bar.com>' [patchname]
#
# Copyright (C) 2016 Linaro Limited
# Author: Peter Maydell <peter.maydell@linaro.org>
# This work is licensed under the terms of the GNU GPL version 2 or later.

# We have to do this by creating a temporary script which we tell
# stg to use as the editor.

if [ $# -eq 0 ]; then
    echo "Usage: stg-add-line line-to-add [other stg edit options]"
    exit 1
fi

MYLINE="$1"
shift

EDITSCRIPT="$(mktemp --tmpdir 'stg-add-line-tmp.XXXXXXXXXXX')"
trap 'rm -f -- "$EDITSCRIPT"' INT TERM HUP EXIT

cat > "$EDITSCRIPT" <<EOT
#!/bin/sh -e
echo '$MYLINE' >> "\$1"
EOT

chmod u+x "$EDITSCRIPT"

EDITOR="$EDITSCRIPT" stg edit "$@"