linux/scripts/package/gen-diff-patch at master · archlinux/linux · GitHub

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#!/bin/sh

# SPDX-License-Identifier: GPL-2.0-only

set -eu

diff_patch=$1

mkdir -p "$(dirname "${diff_patch}")"

git -C "${srctree:-.}" diff HEAD > "${diff_patch}"

if [ ! -s "${diff_patch}" ] ||

[ -z "$(git -C "${srctree:-.}" ls-files --other --exclude-standard | head -n1)" ]; then

exit

# The source tarball, which is generated by 'git archive', contains everything

# you committed in the repository. If you have local diff ('git diff HEAD'),

# it will go into ${diff_patch}. If untracked files are remaining, the resulting

# source package may not be correct.

# Examples:

# - You modified a source file to add #include "new-header.h"

# but forgot to add new-header.h

# - You modified a Makefile to add 'obj-$(CONFIG_FOO) += new-dirver.o'

# but you forgot to add new-driver.c

# You need to commit them, or at least stage them by 'git add'.

# This script does not take care of untracked files because doing so would

# introduce additional complexity. Instead, print a warning message here if

# untracked files are found.

# If all untracked files are just garbage, you can ignore this warning.

echo >&2 "============================ WARNING ============================"

echo >&2 "Your working tree has diff from HEAD, and also untracked file(s)."

echo >&2 "Please make sure you did 'git add' for all new files you need in"

echo >&2 "the source package."

echo >&2 "================================================================="

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