We should be using a fully-qualified path to the `git` executable
At the moment we're using PATH
resolution to resolve the git
executable.
This is incorrect.
Proposal
Use a environmental variable, like GITALY_GIT_BINARY
to allow Gitaly to specify the location of the git
binary, falling back to a default value of git
which would continue to use the current behaviour of PATH
resolution.
This default would make testing and development easier, but should probably emit a warning.
Related: #107 (closed)