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|
#!/bin/sh
# Copyright (c) The Exim Maintainers 1995 - 2021
# SPDX-License-Identifier: GPL-2.0-or-later
set -e
LC_ALL=C
export LC_ALL
# Update Exim's version header file.
# Compatibility gross-ness for non-POSIX systems
if [ -z "$EXIM_REVERSION_ADJUSTED" ]
then
SHELL=/bin/sh
EXIM_REVERSION_ADJUSTED=yes
export SHELL EXIM_REVERSION_ADJUSTED
# Solaris:
if [ -x /usr/xpg4/bin/sh ]
then
PATH="/usr/xpg4/bin:$PATH"
SHELL=/usr/xpg4/bin/sh
export PATH SHELL
fi
# Irix:
_XPG=1 ; export _XPG
#
exec "$SHELL" "$0" "$@"
fi
# Read version information that was generated by a previous run of
# this script, or during the release process.
# Override, used for automated testing w/o access to the
# .git directory (w.g. inside a git worktree)
if [ -n "$EXIM_RELEASE_VERSION" ]; then
:
elif [ -f ./version.sh ]; then
. ./version.sh
elif [ -f ../src/version.sh ]; then
. ../src/version.sh
elif [ -d ../../.git ] || [ -f ../../.git ] || [ "$1" = release ]; then
# Modify the output of git describe into separate parts for
# the name "exim" and the release and variant versions.
# Put a dot in the version number and remove a spurious g.
if [ "$2" ]
then
description=$(git describe "$2")
else
description=$(git describe --dirty=-XX --match 'exim-4*')
fi
set $(echo "$description" | sed 's/-/ /; s/-g/-/')
# Only update if we need to
if [ "$2 $3" != "$EXIM_RELEASE_VERSION $EXIM_VARIANT_VERSION" ]
then
EXIM_RELEASE_VERSION="$2"
EXIM_VARIANT_VERSION="$3"
rm -f version.h
fi
fi
if [ -z "$EXIM_RELEASE_VERSION" ]; then
echo "Cannot determine the release number" >&2
echo "You may want to override it with EXIM_RELEASE_VERSION" >&2
exit 1
fi
# If you are maintaining a patched version of Exim, you can either
# create your own version.sh as part of your release process, or you
# can modify EXIM_VARIANT_VERSION at this point in this script.
if test -z "$EXIM_RELEASE_VERSION"; then
echo "$0: Your copy of Exim lacks any version information." >&2
exit 1
fi
EXIM_COMPILE_NUMBER=$(expr "${EXIM_COMPILE_NUMBER:-0}" + 1)
echo "$EXIM_COMPILE_NUMBER" >cnumber.h
# Reproducible builds, accept a build timestamp override from environ per
# <https://reproducible-builds.org/specs/source-date-epoch/>.
# We require a fairly modern date(1) command here, which is not portable
# to some of the systems Exim is built on. That's okay, because the scenarios
# are:
# 1) Local postmaster building, not using $SOURCE_DATE_EPOCH, doesn't matter
# 2) Packaging folks who don't care about reproducible builds
# 3) Packaging folks who care but are using systems where date Just Works
# 3) Packaging folks who care and can put a modern date(1) in $PATH
# 4) Packaging folks who care and can supply us with a clean patch to support
# their requirements
# 5) Packaging folks who care but won't do any work to support their strange
# old systems and want us to do the work for them. We don't care either,
# they're SOL and have to live without reproducible builds.
#
exim_build_date_override=''
if [ ".${SOURCE_DATE_EPOCH:-}" != "." ]; then
fmt='+%d-%b-%Y %H:%M:%S'
# Non-reproducible, we use __DATE__ and __TIME__ in C, which respect timezone
# (think localtime, not gmtime); for reproduction between systems, UTC makes
# more sense and the examples available use UTC without explicitly mandating
# it. I think that we can switch behavior and use UTC for reproducible
# builds without it causing any problems: nothing really cares about timezone.
# GNU date: "date -d @TS"
# BSD date: "date -r TS"
exim_build_date_override="$(date -u -d "@${SOURCE_DATE_EPOCH}" "$fmt" 2>/dev/null || date -u -r "${SOURCE_DATE_EPOCH}" "$fmt" 2>/dev/null)"
fi
( echo '# automatically generated file - see ../scripts/reversion'
echo EXIM_RELEASE_VERSION='"'"$EXIM_RELEASE_VERSION"'"'
test -n "$EXIM_VARIANT_VERSION" && \
echo EXIM_VARIANT_VERSION='"'"$EXIM_VARIANT_VERSION"'"'
echo EXIM_COMPILE_NUMBER='"'"$EXIM_COMPILE_NUMBER"'"'
if [ ".${exim_build_date_override:-}" != "." ]; then
echo EXIM_BUILD_DATE_OVERRIDE='"'"${exim_build_date_override}"'"'
fi
) >version.sh
if [ ! -f version.h ]
then
( echo '/* automatically generated file - see ../scripts/reversion */'
echo '#define EXIM_RELEASE_VERSION "'"$EXIM_RELEASE_VERSION"'"'
test -n "$EXIM_VARIANT_VERSION" && \
echo '#define EXIM_VARIANT_VERSION "'"$EXIM_VARIANT_VERSION"'"'
echo '#ifdef EXIM_VARIANT_VERSION'
echo '#define EXIM_VERSION_STR EXIM_RELEASE_VERSION "-" EXIM_VARIANT_VERSION'
echo '#else'
echo '#define EXIM_VERSION_STR EXIM_RELEASE_VERSION'
echo '#endif'
if [ ".${exim_build_date_override:-}" != "." ]; then
echo '#define EXIM_BUILD_DATE_OVERRIDE "'"${exim_build_date_override}"'"'
fi
) >version.h
fi
#test -t 1 && echo ">>> version $EXIM_RELEASE_VERSION $EXIM_VARIANT_VERSION #$EXIM_COMPILE_NUMBER"
|
