Wrap io errs for kodata layer

[jonjohnsonjr]

Fixes #319

This is untested. The new io/fs stuff might make this easier, but I'm too lazy to try it out.

@benmoss would this have helped?

[codecov-io]

Codecov Report

Merging #320 (c639cb7) into main (a6442e6) will decrease coverage by 0.09%.
The diff coverage is 12.50%.

@@            Coverage Diff             @@
##             main     #320      +/-   ##
==========================================
- Coverage   38.07%   37.97%   -0.10%     
==========================================
  Files          33       33              
  Lines        1513     1514       +1     
==========================================
- Hits          576      575       -1     
- Misses        844      845       +1     
- Partials       93       94       +1     

Impacted Files	Coverage Δ
pkg/build/gobuild.go	59.24% <12.50%> (-0.47%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update a6442e6...c639cb7. Read the comment docs.

[benmoss]

Not much because of the re-assignment of hostPath on the line immediately preceding where you print it :)

2021/02/25 11:41:43 error processing import paths in "config/core/999-cache.yaml": error resolving image references: filepath.EvalSymlinks(""): not a directory

[jonjohnsonjr]

Not much because of the re-assignment of hostPath on the line immediately preceding where you print it :)

🤦

One more try? 😄

[benmoss]

yay

2021/02/25 12:07:26 error processing import paths in "config/core/999-cache.yaml": error resolving image references: filepath.EvalSymlinks("/home/cesium/workspace/serving/cmd/queue/kodata/HEAD"): not a directory