2 # Copyright (C) The Arvados Authors. All rights reserved.
4 # SPDX-License-Identifier: AGPL-3.0
8 versionglob="[0-9].[0-9]*.[0-9]*"
11 # automatically assign version
13 # handles the following cases:
15 # 1. commit is directly tagged. print that.
17 # 2. commit is on main or a development branch, the nearest tag is older
18 # than commit where this branch joins main.
19 # -> take greatest version tag in repo X.Y.Z and assign X.(Y+1).0
21 # 3. commit is on a release branch, the nearest tag is newer
22 # than the commit where this branch joins main.
23 # -> take nearest tag X.Y.Z and assign X.Y.(Z+1)
25 tagged=$(git tag --points-at "$commit")
27 if [[ -n "$tagged" ]] ; then
30 # 1. get the nearest tag with 'git describe'
31 # 2. get the merge base between this commit and main
32 # 3. if the tag is an ancestor of the merge base,
33 # (tag is older than merge base) increment minor version
34 # else, tag is newer than merge base, so increment point version
36 nearest_tag=$(git describe --tags --abbrev=0 --match "$versionglob" "$commit")
37 merge_base=$(git merge-base origin/main "$commit")
39 if git merge-base --is-ancestor "$nearest_tag" "$merge_base" ; then
40 # x.(y+1).0~devTIMESTAMP, where x.y.z is the newest version that does not contain $commit
41 # grep reads the list of tags (-f) that contain $commit and filters them out (-v)
42 # this prevents a newer tag from retroactively changing the versions of everything before it
43 v=$(git tag | grep -vFf <(git tag --contains "$commit") | sort -Vr | head -n1 | perl -pe 's/(\d+)\.(\d+)\.\d+.*/"$1.".($2+1).".0"/e')
45 # x.y.(z+1)~devTIMESTAMP, where x.y.z is the latest released ancestor of $commit
46 v=$(echo $nearest_tag | perl -pe 's/(\d+)$/$1+1/e')
48 isodate=$(TZ=UTC git log -n1 --format=%cd --date=iso "$commit")
49 ts=$(TZ=UTC date --date="$isodate" "+%Y%m%d%H%M%S")
50 echo "${v}${devsuffix}${ts}"