blob: 1f51768fa006ea32e4747907cffe5e07174cb35e [file] [log] [blame]
lh9ed821d2023-04-07 01:36:19 -07001#!/bin/sh
2
3# Determine the version string to build into a binary.
4# When building in the git repository, we can use the output
5# of "git describe" which gives an unequivocal answer.
6#
7# Failing that, we use the contents of the VERSION file
8# which has a set of references substituted into it by git.
9# If we can find one which matches $v[0-9].* then we assume it's
10# a version-number tag, else we just use the whole string.
11# If there is more than one v[0-9].* tag, sort them and use the
12# first. The insane arguments to the sort command are to ensure
13# that, eg v2.64 comes before v2.63, but v2.63 comes before v2.63rc1
14# and v2.63rc1 comes before v2.63test1
15
16
17# Change directory to the toplevel source directory.
18if test -z "$1" || ! test -d "$1" || ! cd "$1"; then
19 echo "$0: First argument $1 must be toplevel dir." >&2
20 exit 1
21fi
22
23if which git >/dev/null 2>&1 && \
24 ([ -d .git ] || grep '^gitdir:' .git >/dev/null 2>&1) && \
25 git describe >/dev/null 2>&1; then
26 git describe | sed 's/^v//'
27elif grep '\$Format:%d\$' $1/VERSION >/dev/null 2>&1; then
28 # unsubstituted VERSION, but no git available.
29 echo UNKNOWN
30else
31 vers=`cat $1/VERSION | sed 's/[(), ]/,/ g' | tr ',' '\n' | grep ^v[0-9]`
32
33 if [ $? -eq 0 ]; then
34 echo "${vers}" | sort -k1.2,1.5Vr -k1.6,1.6 -k1.8,1.9Vr -k1.10,1.11Vr | head -n 1 | sed 's/^v//'
35 else
36 cat $1/VERSION
37 fi
38fi
39
40exit 0
41