Don't require building in a git repository

[nmattia]

My build fails like this:

TypeScript Compilation

[00:00:04.394434900] TypeScript build completed without warnings.
[00:00:04.372880475] Total section time.
________________________________________________________________________

Building Options


Stack trace
-----------
    at node_apps_errout_error (/build/source/js/services.js:2097:27)
    at Object.node_apps_errout [as errout] (/build/source/js/services.js:2185:13)
    at node_apps_build_libraries_child (/build/source/js/services.js:1301:30)
    at ChildProcess.exithandler (child_process.js:301:5)
    at ChildProcess.emit (events.js:198:13)
    at maybeClose (internal/child_process.js:982:16)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:259:5)

Error Message
------------
Error: Command failed: git log -1 --branches
fatal: not a git repository (or any of the parent directories): .git

Unfortunately I cannot keep the .git around. Would it be possible to have a build that doesn't require .git?