handle git

env GIT_AUTHOR_NAME='Michael Matloob'
env GIT_AUTHOR_EMAIL='matloob@golang.org'
env GIT_COMMITTER_NAME=$GIT_AUTHOR_NAME
env GIT_COMMITTER_EMAIL=$GIT_AUTHOR_EMAIL

at 2017-09-15T03:28:32-00:00

git init
git commit --allow-empty -m 'initial commit'
git tag v0.1.0
git tag v3.1.0

git add go.mod
git commit -m 'create module invalid-version'

git add unicode/unicode.go
git commit -m 'add unicode package'

at 2017-12-13T10:25:48-00:00

git add unicode/unicode2.go
git commit -m 'another commit with tag'
git tag v0.2.0
git tag v4.0.0

git add 3.txt
git commit -m 'yet another commit'

git rm go.mod
git commit -m 'remove go.mod'

git tag v5.0.0

git log --oneline --decorate=short
cmp stdout .git-log

-- .git-log --
dbb861d (HEAD -> main, tag: v5.0.0) remove go.mod
5213b9f yet another commit
a72be5e (tag: v4.0.0, tag: v0.2.0) another commit with tag
90ac26b add unicode package
1732873 create module invalid-version
d047a7b (tag: v3.1.0, tag: v0.1.0) initial commit
-- go.mod --
module vcs-test.golang.org/go/invalid-version

go 1.26.0
-- 3.txt --
-- unicode/unicode.go --
package unicode
-- unicode/unicode2.go --
package unicode