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