tree 7e4d8418f291c905fad5933cccc94e19eea6e249
parent 820a24ddeea07ac80c931d9a77f76579383c42d5
author Haibo Huang <hhb@google.com> 1535773465 -0700
committer Haibo Huang <hhb@google.com> 1535775461 +0000

[Updater] Support git tag

If the upstream is GIT and version is not a hash, updater will try to
list upstream tags to find a newer version. And suggest to merge from
that tag.

Change-Id: I34651815c761c78fd0485df0a84adc086a810e9e
Test: Change googletest/METADATA to follow upstream releases. And run updater.