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|
#!/bin/bash
#
# Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
#
# Generate version information for the EC binary
# Use this symbol as a separator to be able to reliably concatenate strings of
# text.
dc=$'\001'
# Default marker to indicate 'dirty' repositories
dirty_marker='+'
# This function examines the state of the current directory and attempts to
# extract its version information: the latest tag, if any, how many patches
# are there since the latest tag, the top sha1, and if there are local
# modifications.
#
# Local modifications are reported by concatenating the revision string and
# the string '-dirty' using the $dc symbol as the separator.
#
# If there is no tags defined in this git repository, the base version is
# considered to be 0.0.
#
# If current directory is not a git depository, this function prints out
# "no_version"
get_tree_version() {
local marker
local ghash
local numcommits
local tag
local vbase
local ver_branch
local ver_major
if ghash=`git rev-parse --short --verify HEAD 2>/dev/null`; then
if gdesc=`git describe --dirty --match='v*' 2>/dev/null`; then
IFS="-" fields=($gdesc)
tag="${fields[0]}"
IFS="." vernum=($tag)
numcommits=$((${vernum[2]}+${fields[1]:-0}))
ver_major="${vernum[0]}"
ver_branch="${vernum[1]}"
else
numcommits=`git rev-list HEAD | wc -l`
ver_major="v0"
ver_branch="0"
fi
# avoid putting the -dirty attribute if only the timestamp
# changed
git status > /dev/null 2>&1
if [ -n "$(git diff-index --name-only HEAD 2>/dev/null)" ]; then
marker="${dirty_marker}"
else
marker="-"
fi
vbase="${ver_major}.${ver_branch}.${numcommits}${marker}${ghash}"
else
# Fall back to the VCSID provided by the packaging system if available.
if ghash=${VCSID##*-}; then
vbase="1.1.9999-${ghash:0:7}"
else
# then ultimately fails to "no_version"
vbase="no_version"
fi
fi
if [[ "${marker}" == "${dirty_marker}" ]]; then
echo "${vbase}${dc}${marker}"
else
echo "${vbase}${dc}"
fi
}
IFS="${dc}"
ver="${CR50_DEV:+DBG/}${BOARD}_"
global_dirty= # set if any of the component repos is 'dirty'.
dir_list=( . ) # list of component directories, always includes the EC tree
case "${BOARD}" in
(cr50)
dir_list+=( ../../third_party/tpm2 ../../third_party/cryptoc )
;;
esac
# Create a combined version string for all component directories.
for git_dir in ${dir_list[@]}; do
pushd "${git_dir}" > /dev/null
component="$(basename "${git_dir}")"
values=( $(get_tree_version) )
vbase="${values[0]}" # Retrieved version information.
global_dirty+="${values[1]}" # Non-zero, if the repository is 'dirty'
if [ "${component}" != "." ]; then
ver+=" ${component}:"
fi
ver+="${vbase}"
popd > /dev/null
done
# On some boards where the version number consists of multiple components we
# want to separate the first word of the version string as the version of the
# EC tree.
IFS=' ' first_word=(${ver})
echo "/* This file is generated by util/getversion.sh */"
echo "/* Version string for use by common/version.c */"
echo "#define CROS_EC_VERSION \"${ver}\""
echo "/* Version string, truncated to 31 chars (+ terminating null = 32) */"
echo "#define CROS_EC_VERSION32 \"${first_word:0:31}\""
echo "/* Sub-fields for use in Makefile.rules and to form build info string"
echo " * in common/version.c. */"
echo "#define VERSION \"${ver}\""
echo "#define BUILDER \"${USER}@`hostname`\""
if [ -n "$global_dirty" ]; then
echo "/* Repo is dirty, using time of last compilation */"
echo "#define DATE \"$(date '+%F %T')\""
else
echo "/* Repo is clean, use the commit date of the last commit */"
# If called from an ebuild we won't have a git repo, so redirect stderr
# to avoid annoying 'Not a git repository' errors.
gitdate=$(git log -1 --format='%ci' HEAD 2>/dev/null | cut -d ' ' -f '1 2')
echo "#define DATE \"${gitdate}\""
fi
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