Summary:
This ports the OClif version of `sourcecred load` to the sane CLI
system. The functionality is similar, but the interface has been
changed a bit (mostly simplifications):
- The `SOURCECRED_GITHUB_TOKEN` can only be set by an environment
variable, not by a command-line argument. This is standard practice
because it is more secure: (a) other users on the same system can
see the full command line arguments, but not the environment
variables, and (b) it’s easier to accidentally leak a command line
(e.g., in CI) than a full environment.
- The `SOURCECRED_DIRECTORY` can only be set by an environment
variable, not by a command-line argument. This is mostly just to
simplify the interface, and also because we don’t really have a good
name for the argument: we had previously used `-d`, which is
unclear, but `--sourcecred-directory` is a bit redundant, while
`--directory` is vague and `--sourcecred-directory` is redundant.
This is an easy way out, but we can put the flag for this back in if
it becomes a problem.
- The `--max-old-space-size` argument has been removed in favor of a
fixed value. It’s unlikely that users should need to change it.
If we’re blowing an 8GB heap, we should try to not do that instead
of increasing the heap.
- Loading zero repositories, but specifying an output directory, is
now valid. This is the right thing to do, but OClif got in our way
in the previous implementation.
Test Plan:
Unit tests added, with full coverage; run `yarn unit`.
To try it out, run `yarn backend`, then `node bin/cli.js load --help` to
get started.
I also manually tested that the following invocations work (i.e., they
complete successfully, and `yarn start` shows good data):
- `load sourcecred/sourcecred`
- `load sourcecred/example-git{,hub} --output sourcecred/examples`
These work even when invoked from a different directory.
wchargin-branch: cli-load
17172c2d96