Wrong version reported

[jgosmann]

Describe the bug
Since version 2.7.1, the version is incorrectly exported as branch reference and commit hash. Both when invoking loki-linux-amd64 -version and when looking at the loki_build_info metric.

For version 2.7.2, for example, I see the following:

loki, version HEAD-c35554d (branch: HEAD, revision: c35554d09)
  build user:       root@b28453c1a217
  build date:       2023-01-26T14:10:02Z
  go version:       go1.19.5
  platform:         linux/amd64

To Reproduce
Run loki-linux-amd64 -version.

OR: Look at the loki_build_info metric.

Expected behavior

First line of the loki-linux-amd64 -version output should be:

loki, version 2.7.2 (branch: HEAD, revision: c35554d09)

The version label of the loki_build_info metric should have the value 2.7.2.

Environment:

• Infrastructure: virtual server
• Deployment tool: Ansible downloading the Loki release from assets of the respective GitHub release.

Screenshots, Promtail config, or terminal output

$ /usr/local/sbin/loki-linux-amd64 -version
loki, version HEAD-c35554d (branch: HEAD, revision: c35554d09)
  build user:       root@b28453c1a217
  build date:       2023-01-26T14:10:02Z
  go version:       go1.19.5
  platform:         linux/amd64

[mytlogos]

Should already be fixed with #8232 (070e3ed).
Currently not released (see CHANGELOG.md on master)

[ashleykleynhans]

This is fixed in Loki 2.7.3 which was released today.

[jgosmann]

Can confirm that it is fixed. :)