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#!/bin/sh
git_available_p() {
# Check that (1) we have git (2) this is a git tree.
if ( command -v git >/dev/null && git describe >/dev/null 2>/dev/null && \
test -f `git rev-parse --show-toplevel`/run-sbcl.sh)
then
echo "ok"
else
echo ""
fi
}
AVAILABLE=`git_available_p`
if [ -f version.lisp-expr -a -z "$AVAILABLE" ]
then
# Relase tarball, leave version.lisp-expr alone.
exit 0
elif [ -z "$AVAILABLE" ]
then
echo "Can't 'git describe' SBCL source and version.lisp-expr is missing." >&2
echo "To fix this, either install git or create a fake version.lisp-expr file." >&2
echo "You can create a fake version.lisp-expr file like this:" >&2
echo " \$ echo '\"1.0.99.999\"' > version.lisp-expr" >&2
exit 1
fi
# Build it.
version_head=`git rev-parse HEAD`
if grep -q "ref: refs/heads/.*" .git/HEAD > /dev/null 2>&1
then
version_branchname=`cut -d / -f 3- < .git/HEAD`
else
# Detached head.
version_branchname="HEAD"
fi
if [ -z "$SBCL_BUILDING_RELEASE_FROM" ]
then
version_root=`git merge-base HEAD origin/master`
else
version_root="$SBCL_BUILDING_RELEASE_FROM"
fi
version_base=`git rev-parse "$version_root"`
version_tag=`git describe --tags --match="sbcl*" --abbrev=0 $version_base`
version_release=`echo $version_tag | sed -e 's/sbcl[_-]//' | sed -e 's/_/\./g'`
# Using wc -l instead of --count argument to rev-list because
# pre-1.7.2 Gits are still common out in the wilderness.
version_n_root=`git rev-list $version_base --not $version_tag | wc -l | sed -e 's/[ \t]//g'`
version_n_branch=`git rev-list HEAD --not $version_base | wc -l | sed -e 's/[ \t]//g'`
if [ -z "$NO_GIT_HASH_IN_VERSION" ]
then
version_hash="-`git rev-parse --short $version_head`"
else
version_hash=""
fi
if git diff HEAD --no-ext-diff --quiet --exit-code
then
version_dirty=""
else
version_dirty="-WIP"
fi
# Now that we have all the pieces, put them together.
cat >version.lisp-expr <<EOF
;;; This file is auto-generated using generate-version.sh. Every time
;;; you re-run make.sh, this file will be overwritten if you are
;;; working from a Git checkout.
EOF
if [ "$version_base" = "$version_head" ]
then
if [ "0" = "$version_n_root" ]
then
printf "\"%s%s\"\n" \
$version_release $version_dirty >>version.lisp-expr
else
printf "\"%s.%s%s%s\"\n" \
$version_release $version_n_root \
$version_hash $version_dirty >>version.lisp-expr
fi
else
echo "base=$version_base"
echo "head=$version_head"
printf "\"%s.%s.%s.%s%s%s\"\n" \
$version_release $version_n_root \
$version_branchname $version_n_branch \
$version_hash $version_dirty >>version.lisp-expr
fi
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