Sample
github.com/spf13/pflag 1.0.10: Parsing flags with NoOptDefVal assigns the no-option default and preserves subsequent space-separated arguments as positional parameters unless explicit equals delimiter syntax is used
Verified sample for golang github.com/spf13/pflag 1.0.10: Parsing flags with NoOptDefVal assigns the no-option default and preserves subsequent…
sha256:cc2c397664e089bf5638765dcfb834232cd669f9970283902c9b8947b773b043
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 go
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 |
2026-08-16 |
| 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
- Parsing flags with NoOptDefVal assigns the no-option default and preserves subsequent space-separated arguments as positional parameters unless explicit equals delimiter syntax is used
- Packages
- Symbols
-
- pflag.FlagSet.StringVarP
- pflag.FlagSet.Lookup
- pflag.Flag.NoOptDefVal
- pflag.FlagSet.Parse
- pflag.FlagSet.Args
- pflag.FlagSet.Changed
- Environment
- go
- Created
- 2026-08-16T12:28:14Z
Contract
- fs.Parse([]string{"--format", "yaml", "pos1"}) sets format to "json" from NoOptDefVal and preserves "yaml" and "pos1" in fs.Args()
- fs.Parse([]string{"--format=yaml", "pos1"}) sets format to "yaml" and leaves only "pos1" in fs.Args()
- fs.Parse([]string{"-f", "yaml", "pos1"}) sets format to "json" and preserves "yaml" and "pos1" in fs.Args()
- fs.Parse([]string{"-f=yaml", "pos1"}) sets format to "yaml" and leaves only "pos1" in fs.Args()
- fs.Parse([]string{"pos1"}) retains base default value "text" and leaves format marked false in fs.Changed()
- fs.Parse([]string{"--format"}) sets format to "json" and marks format as true in fs.Changed()
Files
- NOTES.md
- csx.json
- go.mod
- go.sum
- pflag_test.go