handle git

env GIT_AUTHOR_NAME='Russ Cox'
env GIT_AUTHOR_EMAIL='rsc@golang.org'
env GIT_COMMITTER_NAME=$GIT_AUTHOR_NAME
env GIT_COMMITTER_EMAIL=$GIT_AUTHOR_EMAIL

git init
git branch -M master

at 2018-07-17T12:41:39-04:00
cp x_cf92c7b.go x.go
git add x.go
git commit -m 'initial commit'

at 2018-07-17T12:41:57-04:00
cp x_52853eb.go x.go
git commit -m 'add X' x.go

at 2018-07-17T12:42:07-04:00
cp x_7fff7f3.go x.go
git commit -m 'gofmt' x.go
git tag v1.0.0

at 2018-07-17T12:42:28-04:00
cp x_fa4f5d6.go x.go
git commit -m 'X->XX' x.go

at 2018-07-17T12:42:36-04:00
cp x_d7ae1e4.go x.go
git commit -m 'gofmt' x.go
git tag v2.0.0

at 2018-07-17T12:42:53-04:00
cp x_7303f77.go x.go
git commit -m 'add XXX' x.go

at 2018-07-17T12:47:59-04:00
git checkout v1.0.0
cp x_1abc5ff.go x.go
git commit -m 'comment' x.go

at 2018-07-17T12:48:22-04:00
cp x_731e3b1.go x.go
git commit -m 'prerelease' x.go
git tag v1.1.0-pre

at 2018-07-17T12:48:49-04:00
cp x_fb3c628.go x.go
git commit -m 'working' x.go

at 2018-07-17T12:49:05-04:00
cp x_9f6f860.go x.go
git commit -m 'v1.2.0' x.go
git tag v1.2.0

at 2018-07-17T12:49:42-04:00
cp x_d2d4c3e.go x.go
git commit -m 'more' x.go
git tag morework

git show-ref --tags --heads
cmp stdout .git-refs

-- .git-refs --
7303f77963648d5f1ec5e55eccfad8e14035866c refs/heads/master
d2d4c3ea66230e7ad6fbd8f0ecd8c0f851392364 refs/tags/morework
7fff7f3417faa4a795f9518bc2bef05147a1d6c0 refs/tags/v1.0.0
731e3b12a0272dcafb560b8fa6a4e9ffb20ef5c9 refs/tags/v1.1.0-pre
9f6f860fe5c92cd835fdde2913aca8db9ce63373 refs/tags/v1.2.0
d7ae1e4b368320e7a577fc8a9efc1e78aacac52a refs/tags/v2.0.0
-- x_1abc5ff.go --
package legacytest

// add comment
const X = 1
-- x_52853eb.go --
package legacytest
const X = 1
-- x_7303f77.go --
package legacytest

const XX = 2

const XXX = 3
-- x_731e3b1.go --
package legacytest

// add comment again
const X = 1
-- x_7fff7f3.go --
package legacytest

const X = 1
-- x_9f6f860.go --
package legacytest

// add comment again!!!
const X = 1
-- x_cf92c7b.go --
package legacytest
-- x_d2d4c3e.go --
package legacytest

// add comment hack hack hack
const X = 1
-- x_d7ae1e4.go --
package legacytest

const XX = 2
-- x_fa4f5d6.go --
package legacytest
const XX = 2
-- x_fb3c628.go --
package legacytest

// add comment fixed
const X = 1