chore(go): ignore frontend portal directory using Go 1.25

[Iam-Karan-Suresh]

Thank you for contributing to Harbor!

Upgrade the Go directive to 1.25 and add an ignore portal directive to src/go.mod
to exclude the frontend-only src/portal directory from Go package pattern matching.

The portal directory contains Angular/TypeScript code only and no Go source files.
Using the Go 1.25 ignore directive prevents false positives during
go build ./... and go test ./... without changing repository structure or runtime behavior.

Issue being fixed

Fixes #22700

Please indicate you've done the following:

• Well Written Title and Summary of the PR
• Label the PR as needed. release-note/infra
• Accepted the DCO. Commits without the DCO will delay acceptance.
• Made sure tests are passing and test coverage is added if needed.
• Considered the docs impact (no docs changes required for this change)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 46.57%. Comparing base (c8c11b4) to head (cb25bc8).
⚠️ Report is 612 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #22702      +/-   ##
==========================================
+ Coverage   45.36%   46.57%   +1.20%     
==========================================
  Files         244      252       +8     
  Lines       13333    14273     +940     
  Branches     2719     2931     +212     
==========================================
+ Hits         6049     6647     +598     
- Misses       6983     7268     +285     
- Partials      301      358      +57     

Flag	Coverage Δ
unittests	46.57% <ø> (+1.20%)	⬆️

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see 178 files with indirect coverage changes

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[reasonerjt]

This PR assumes that in portal directory there will never be .go files, otherwise we should cover it in go test ./...

But given there's no .go files, are there any real performance gain with this statement? Please kindly provide evidence, otherwise, I don't think this change is needed.

[wy65701436]

if we would like to bump the go version of harbor, this change is not enough.

Please refer to #22238

[bupd]

@Iam-Karan-Suresh please update pr with necessary changes required

Thanks

[wy65701436]

Do we have any concrete comparison between enabling and not enabling it? I’d like to understand how much benefit we can gain.

[bupd]

yes,

The Go 1.25 ignore directive excludes portal/ from Go tool traversal (go list, go build, go test, etc.).

src/portal Directory Stats

Metric	Value
Total size	757 MB
Total files	54,186
Go files	0

Performance Impact

Command	With ignore	Without ignore	Improvement
go list ./...	0.43s	0.80s	46% faster

I would suggest we can go with this change - since this gives measurable performance gain with no downside. and is officially introduced in go1.25

Thanks

[wy65701436]

please ensure if we would like to upgrade the go version to v1.25 with this PR?

[bupd]

This PR assumes that in portal directory there will never be .go files, otherwise we should cover it in go test ./...

But given there's no .go files, are there any real performance gain with this statement? Please kindly provide evidence, otherwise, I don't think this change is needed.

yes this would obviously increase the performance of go tool uses ./... since there would be much less directories to traverse and since harbor is a monorepo and contains portal - which is not a go module we should exclude it.

see https://go.dev/ref/mod#go-mod-file-ignore

[reasonerjt]

@bupd
I undertand in theory it traverse less directories but could you reply
#22702 (comment)