internal/sandbox: generalize the API

Change the sandbox API so it is more like os/exec, where
one constructs a Cmd and then calls Output to get the output.

This not only makes the API more familiar, it also generalizes it:
now it is possible to set the working directory and environment
for binaries run in the sandbox.

Change-Id: I12972b5a553d98c002c61ef98b0eb690efeb9257
Reviewed-on: https://go-review.googlesource.com/c/pkgsite-metrics/+/471416
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Maceo Thompson <maceothompson@google.com>
Run-TryBot: Jonathan Amsterdam <jba@google.com>
4 files changed
tree: 29588cd8f7c7d482e3fe4abcd6039edfbfa379eb
  1. cmd/
  2. deploy/
  3. devtools/
  4. internal/
  5. static/
  6. terraform/
  7. .dockerignore
  8. .gitignore
  9. all_test.go
  10. checks.bash
  11. config.json.commented
  12. CONTRIBUTING.md
  13. go.mod
  14. go.sum
  15. LICENSE
  16. Makefile
  17. PATENTS
  18. README.md
  19. tools_test.go
README.md

pkgsite-metrics

This repository contains code that serves pkg.go.dev/metrics.

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