CodeSampleX

Sample

github.com/Masterminds/sprig/v3 v3.3.0: TxtFuncMap

Verified sample for golang github.com/Masterminds/sprig/v3 v3.3.0: TxtFuncMap. The contract ran on go 1.26 · linux alpine/x64 · docker and passed.

sha256:e022f51012925531ff767cd890474839180a9c400fb44665cc510c4e1bdd7e17

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
1
Signing keys that built it
1
Declared environment linux 24 · ubuntu · glibc 2.39 x64 go

Verification-run environments

Environment Contract Stages Run
go 1.26 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · golang@1		 2026-08-21

Case

HOW
Goal
verify github.com/Masterminds/sprig/v3.TxtFuncMap in pkg:golang/github.com/Masterminds/sprig/v3@v3.3.0
Packages
Symbols
  • github.com/Masterminds/sprig/v3.TxtFuncMap
Created
2026-08-21T02:20:20Z

Contract

  1. sprig.TxtFuncMap returns a non-empty template.FuncMap containing text template helper functions
  2. sprig.TxtFuncMap enables text template string transformations including trimming, casing, and replacing
  3. sprig.TxtFuncMap functions execute arithmetic and collection operations correctly inside Go text templates

Files

  • PROMPT.md
  • csx.json
  • go.mod
  • go.sum
  • main.go
  • spec.json
  • test/contract.go

Download the source artifact (tar.gz)

Source

PROMPT.md
Clean-room public code sample — generation instructions

Write a brand-new, minimal, self-contained code sample in this clean-room directory.
Do not copy, paraphrase, or reference any existing project source. Work only from this spec.

A csx.json manifest scaffold already exists. Do not recreate it from memory. Preserve its case.goal, packages and symbols; fill its empty case.contract with exact assertions and correct its environment, commands and verifierAdapter for the files you generate.

Goal: verify github.com/Masterminds/sprig/v3.TxtFuncMap in pkg:golang/github.com/Masterminds/sprig/v3@v3.3.0
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:golang/github.com/Masterminds/sprig/v3@v3.3.0
Demonstrate these symbols/APIs:
  - github.com/Masterminds/sprig/v3.TxtFuncMap

Rules:
  - One focused purpose; the smallest project that proves the goal.
  - Include a contract test (test/contract.*) that runs OFFLINE and exits 0 exactly when the goal behavior works.
  - Pin every dependency with a lockfile so resolution is reproducible.
  - No secrets, credentials, or tokens. No real URLs (only example.com or localhost). No absolute paths.
  - No personal names, emails, company names, or project identifiers of any kind.
  - No binaries and no generated output (node_modules, dist, target, venv, .git, .env).
  - Keep it under 200 files and 256KB packed.
csx.json
{"case":{"caseId":"case:sha256:499e62fd978061e1c86608733ba628c94c59bacf4e26dd28db98495ffcb50508","contract":["sprig.TxtFuncMap returns a non-empty template.FuncMap containing text template helper functions","sprig.TxtFuncMap enables text template string transformations including trimming, casing, and replacing","sprig.TxtFuncMap functions execute arithmetic and collection operations correctly inside Go text templates"],"goal":"verify github.com/Masterminds/sprig/v3.TxtFuncMap in pkg:golang/github.com/Masterminds/sprig/v3@v3.3.0","kind":"HOW","packages":["pkg:golang/github.com/Masterminds/sprig/v3@v3.3.0"],"schemaVersion":1,"symbols":["github.com/Masterminds/sprig/v3.TxtFuncMap"]},"contractCommand":["go","run","./test"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"golang","libc":"glibc","libcVersion":"2.39","os":"linux","osVersionBucket":"24","packageManager":"go","schemaVersion":1},"license":"MIT-0","packages":["pkg:golang/github.com/Masterminds/sprig/v3@v3.3.0"],"schemaVersion":1,"subject":"pkg:golang/github.com/Masterminds/sprig/v3@v3.3.0","symbols":["github.com/Masterminds/sprig/v3.TxtFuncMap"],"verifierAdapter":"golang@1"}
go.mod
module example.com/sample

go 1.22

require github.com/Masterminds/sprig/v3 v3.3.0

require (
	dario.cat/mergo v1.0.1 // indirect
	github.com/Masterminds/goutils v1.1.1 // indirect
	github.com/Masterminds/semver/v3 v3.3.0 // indirect
	github.com/google/uuid v1.6.0 // indirect
	github.com/huandu/xstrings v1.5.0 // indirect
	github.com/mitchellh/copystructure v1.2.0 // indirect
	github.com/mitchellh/reflectwalk v1.0.2 // indirect
	github.com/shopspring/decimal v1.4.0 // indirect
	github.com/spf13/cast v1.7.0 // indirect
	golang.org/x/crypto v0.26.0 // indirect
)
go.sum
dario.cat/mergo v1.0.1 h1:Ra4+bf83h2ztPIQYNP99R6m+Y7KfnARDfID+a+vLl4s=
dario.cat/mergo v1.0.1/go.mod h1:uNxQE+84aUszobStD9th8a29P2fMDhsBdgRYvZOxGmk=
github.com/Masterminds/goutils v1.1.1 h1:5nUrii3FMTL5diU80unEVvNevw1nH4+ZV4DSLVJLSYI=
github.com/Masterminds/goutils v1.1.1/go.mod h1:8cTjp+g8YejhMuvIA5y2vz3BpJxksy863GQaJW2MFNU=
github.com/Masterminds/semver/v3 v3.3.0 h1:B8LGeaivUe71a5qox1ICM/JLl0NqZSW5CHyL+hmvYS0=
github.com/Masterminds/semver/v3 v3.3.0/go.mod h1:4V+yj/TJE1HU9XfppCwVMZq3I84lprf4nC11bSS5beM=
github.com/Masterminds/sprig/v3 v3.3.0 h1:mQh0Yrg1XPo6vjYXgtf5OtijNAKJRNcTdOOGZe3tPhs=
github.com/Masterminds/sprig/v3 v3.3.0/go.mod h1:Zy1iXRYNqNLUolqCpL4uhk6SHUMAOSCzdgBfDb35Lz0=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHkI4W8=
github.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0=
github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/huandu/xstrings v1.5.0 h1:2ag3IFq9ZDANvthTwTiqSSZLjDc+BedvHPAp5tJy2TI=
github.com/huandu/xstrings v1.5.0/go.mod h1:y5/lhBue+AyNmUVz9RLU9xbLR0o4KIIExikq4ovT0aE=
github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
github.com/mitchellh/copystructure v1.2.0 h1:vpKXTN4ewci03Vljg/q9QvCGUDttBOGBIa15WveJJGw=
github.com/mitchellh/copystructure v1.2.0/go.mod h1:qLl+cE2AmVv+CoeAwDPye/v+N2HKCj9FbZEVFJRxO9s=
github.com/mitchellh/reflectwalk v1.0.2 h1:G2LzWKi524PWgd3mLHV8Y5k7s6XUvT0Gef6zxSIeXaQ=
github.com/mitchellh/reflectwalk v1.0.2/go.mod h1:mSTlrgnPZtwu0c4WaC2kGObEpuNDbx0jmZXqmk4esnw=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/rogpeppe/go-internal v1.9.0 h1:73kH8U+JUqXU8lRuOHeVHaa/SZPifC7BkcraZVejAe8=
github.com/rogpeppe/go-internal v1.9.0/go.mod h1:WtVeX8xhTBvf0smdhujwtBcq4Qrzq/fJaraNFVN+nFs=
github.com/shopspring/decimal v1.4.0 h1:bxl37RwXBklmTi0C79JfXCEBD1cqqHt0bbgBAGFp81k=
github.com/shopspring/decimal v1.4.0/go.mod h1:gawqmDU56v4yIKSwfBSFip1HdCCXN8/+DMd9qYNcwME=
github.com/spf13/cast v1.7.0 h1:ntdiHjuueXFgm5nzDRdOS4yfT43P5Fnud6DH50rz/7w=
github.com/spf13/cast v1.7.0/go.mod h1:ancEpBxwJDODSW/UG4rDrAqiKolqNNh2DX3mk86cAdo=
github.com/stretchr/testify v1.5.1 h1:nOGnQDM7FYENwehXlg/kFVnos3rEvtKTjRvOWSzb6H4=
github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
golang.org/x/crypto v0.26.0 h1:RrRspgV4mU+YwB4FYnuBoKsUapNIL5cohGAmSH3azsw=
golang.org/x/crypto v0.26.0/go.mod h1:GY7jblb9wI+FOo5y8/S2oY4zWP07AkOJ4+jxCqdqn54=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=
gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
main.go
package main

import (
	"bytes"
	"fmt"
	"text/template"

	"github.com/Masterminds/sprig/v3"
)

func main() {
	tmplText := `{{ "  sample output  " | trim | upper }}`
	tmpl, err := template.New("sample").Funcs(sprig.TxtFuncMap()).Parse(tmplText)
	if err != nil {
		panic(err)
	}

	var buf bytes.Buffer
	if err := tmpl.Execute(&buf, nil); err != nil {
		panic(err)
	}

	fmt.Println(buf.String())
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify github.com/Masterminds/sprig/v3.TxtFuncMap in pkg:golang/github.com/Masterminds/sprig/v3@v3.3.0",
  "kind": "HOW",
  "packages": [
    "pkg:golang/github.com/Masterminds/sprig/v3@v3.3.0"
  ],
  "symbols": [
    "github.com/Masterminds/sprig/v3.TxtFuncMap"
  ]
}
test/contract.go
package main

import (
	"bytes"
	"fmt"
	"os"
	"text/template"

	"github.com/Masterminds/sprig/v3"
)

func main() {
	// Assertion 1: sprig.TxtFuncMap returns a non-empty template.FuncMap containing text template helper functions
	fm := sprig.TxtFuncMap()
	if fm == nil {
		fmt.Fprintln(os.Stderr, "assertion 1 failed: sprig.TxtFuncMap returned nil")
		os.Exit(1)
	}
	for _, fn := range []string{"upper", "lower", "trim", "replace", "add", "sub", "list", "join"} {
		if _, ok := fm[fn]; !ok {
			fmt.Fprintf(os.Stderr, "assertion 1 failed: missing %s function\n", fn)
			os.Exit(1)
		}
	}

	// Assertion 2: sprig.TxtFuncMap enables text template string transformations including trimming, casing, and replacing
	tmplStr2 := `{{ replace "world" "sprig" ("  hello world  " | trim | lower) }}`
	t2, err := template.New("t2").Funcs(fm).Parse(tmplStr2)
	if err != nil {
		fmt.Fprintf(os.Stderr, "assertion 2 failed: %v\n", err)
		os.Exit(1)
	}
	var buf2 bytes.Buffer
	if err := t2.Execute(&buf2, nil); err != nil {
		fmt.Fprintf(os.Stderr, "assertion 2 failed: %v\n", err)
		os.Exit(1)
	}
	if got, want := buf2.String(), "hello sprig"; got != want {
		fmt.Fprintf(os.Stderr, "assertion 2 failed: got %q, want %q\n", got, want)
		os.Exit(1)
	}

	// Assertion 3: sprig.TxtFuncMap functions execute arithmetic and collection operations correctly inside Go text templates
	tmplStr3 := `{{ $sum := add 15 25 }}{{ $items := list "a" "b" "c" }}{{ $sum }}: {{ join "-" $items }}`
	t3, err := template.New("t3").Funcs(fm).Parse(tmplStr3)
	if err != nil {
		fmt.Fprintf(os.Stderr, "assertion 3 failed: %v\n", err)
		os.Exit(1)
	}
	var buf3 bytes.Buffer
	if err := t3.Execute(&buf3, nil); err != nil {
		fmt.Fprintf(os.Stderr, "assertion 3 failed: %v\n", err)
		os.Exit(1)
	}
	if got, want := buf3.String(), "40: a-b-c"; got != want {
		fmt.Fprintf(os.Stderr, "assertion 3 failed: got %q, want %q\n", got, want)
		os.Exit(1)
	}

	fmt.Println("All contract assertions passed.")
}

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