There is an `exec()` helper provided by `utils/shelljs.ts`, which is a
wrapper around ShellJS' `exec()` with some default options (currently
`silent: true`). The intention is to avoid having to pass these options
to every invocation of the `exec()` function.
This commit updates all code inside `dev-infra/` to use this helper
whenever possible).
NOTE: For simplicity, the `utils/shelljs` helper does not support some
of the less common call signatures of the original `exec()`
helper, so in some cases we still need to use the original.
PR Close#37444
Previously we used gulp to run our formatter, currently clang-format,
across our repository. This new tool within ng-dev allows us to
migrate away from our gulp based solution as our gulp solution had
issue with memory pressure and would cause OOM errors with too large
of change sets.
PR Close#36726