CodeSampleX

Sample

embed 1.26.5: Embed directories with //go:embed where dotfiles, underscore files, and hidden-only dirs are silently excluded unless all: prefix or explicit patterns are used

Verified sample for golang embed 1.26.5: Embed directories with //go:embed where dotfiles, underscore files, and hidden-only dirs are silently excluded…

sha256:11b661feefadaedaeced4e35ad5b305191a4e0bb4462ac3e01f1befdbc5c12b9

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
2
Signing keys that built it
2
Declared environment go linux x64 go go gomod

Verification-run environments

Environment Contract Stages Run
go 1.26 · linux alpine/x64 · docker ed25519:d91480838ac982c9 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · golang@1
2026-08-15
go 1.26 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · golang@1
2026-08-18

Case

HOW
Goal
Embed directories with //go:embed where dotfiles, underscore files, and hidden-only dirs are silently excluded unless all: prefix or explicit patterns are used
Packages
Symbols
  • embed.FS
  • embed.FS.Open
  • embed.FS.ReadFile
  • embed.FS.ReadDir
  • //go:embed
  • io/fs.Sub
Environment
go
Created
2026-08-16T06:28:34Z

Contract

  1. assert //go:embed dir silently excludes dotfiles, underscore files, and subdirectories containing only excluded files
  2. assert fs.ReadDir on embedded directory lists only non-hidden entries and omits dotfiles, underscore files, and hidden-only subdirectories
  3. assert all: prefix opts in to embedding dotfiles and underscore files recursively
  4. assert explicitly naming a dotfile in //go:embed embeds it without all: while omitting sibling files
  5. assert wildcard on directory matches direct files including dot and underscore files
  6. assert embed.FS preserves directive path prefix and fs.Sub roots the sub-filesystem
  7. assert scalar string and byte slice types embed single file contents directly
  8. assert embed.FS files implement io.Reader, io.Seeker, and io.ReaderAt, but not io.Writer

Files

  • NOTES.md
  • csx.json
  • embed_test.go
  • fixtures/.dotfile
  • fixtures/_underscore.txt
  • fixtures/hidden_only/.secret
  • fixtures/hidden_only/_secret
  • fixtures/public.txt
  • fixtures/sub/.nested_dot
  • fixtures/sub/_nested_under
  • fixtures/sub/nested_public.txt
  • go.mod

Download the source artifact (tar.gz)

Origin Seeder

csx-seed