sumdb/dirhash: fix a panic when argument is not a directory

This patch fixes a case where a path to a non directory can cause DirHash func to panic.

Fixes golang/go#57269

Change-Id: I743970dcafdf3bfee94baf4b714429a404decda9
GitHub-Last-Rev: a17ca1aa310d922853912b5592bebc11c5cbe256
GitHub-Pull-Request: golang/mod#16
Run-TryBot: Bryan Mills <>
Auto-Submit: Bryan Mills <>
Reviewed-by: Benny Siegert <>
Reviewed-by: Bryan Mills <>
TryBot-Result: Gopher Robot <>
2 files changed
tree: b1cde7e514580ff2ed585650950693855ca6a93c
  1. gosumcheck/
  2. internal/
  3. modfile/
  4. module/
  5. semver/
  6. sumdb/
  7. zip/
  8. codereview.cfg
  9. go.mod
  10. go.sum



This repository holds packages for writing tools that work directly with Go module mechanics. That is, it is for direct manipulation of Go modules themselves.

It is NOT about supporting general development tools that need to do things like load packages in module mode. That use case, where modules are incidental rather than the focus, should remain in x/tools, specifically x/tools/go/packages.

The specific case of loading packages should still be done by invoking the go command, which remains the single point of truth for package loading algorithms.