chore: enable Go modules and modernize CI

.github/workflows/go.yml

@@ -1,7 +1,7 @@
 name: Go
 on:
   push:
-    branches: [ main ]
+    branches: [main]
     paths:
       - '**.go'
       - 'go.mod'
@@ -14,47 +14,39 @@ on:
       - '.golangci.yml'
       - '.github/workflows/go.yml'
 env:
-  GOPROXY: "https://proxy.golang.org"
+  GOPROXY: 'https://proxy.golang.org'
 
 jobs:
   lint:
     name: Lint
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
-      - name: Init Go Modules
-        run: |
-          go mod init github.com/go-ini/ini
-          go mod tidy
+        uses: actions/checkout@v6
+      - name: Setup Go
+        uses: actions/setup-go@v6
+        with:
+          go-version: stable
       - name: Run golangci-lint
-        uses: golangci/golangci-lint-action@v2
+        uses: golangci/golangci-lint-action@v9
         with:
           version: latest
           args: --timeout=30m
-          skip-pkg-cache: true # Wrokaround of the "tar" problem: https://github.com/golangci/golangci-lint-action/issues/244
 
   test:
     name: Test
     strategy:
       matrix:
-        go-version: [ 1.13.x, 1.14.x, 1.15.x, 1.16.x, 1.17.x, 1.18.x ]
-        platform: [ ubuntu-latest, macos-latest, windows-latest ]
+        go-version: [1.24.x, 1.25.x]
+        platform: [ubuntu-latest, macos-latest, windows-latest]
     runs-on: ${{ matrix.platform }}
     steps:
-      - name: Install Go
-        uses: actions/setup-go@v2
+      - name: Checkout code
+        uses: actions/checkout@v6
+      - name: Setup Go
+        uses: actions/setup-go@v6
         with:
           go-version: ${{ matrix.go-version }}
-      - name: Checkout code
-        uses: actions/checkout@v2
       - name: Run tests with coverage
         run: |
-          go mod init github.com/go-ini/ini
-          go mod tidy
-          go test -v -race -coverprofile=coverage -covermode=atomic ./...
-      - name: Upload coverage report to Codecov
-        uses: codecov/[email protected]
-        with:
-          file: ./coverage
-          flags: unittests
+          go test -v -race ./...

.golangci.yml

@@ -1,27 +1,36 @@
-linters-settings:
-  staticcheck:
-    checks: [
-      "all",
-      "-SA1019" # There are valid use cases of strings.Title
-    ]
-  nakedret:
-    max-func-lines: 0 # Disallow any unnamed return statement
-
+version: "2"
 linters:
   enable:
-    - deadcode
-    - errcheck
-    - gosimple
-    - govet
-    - ineffassign
-    - staticcheck
-    - structcheck
-    - typecheck
-    - unused
-    - varcheck
     - nakedret
-    - gofmt
     - rowserrcheck
     - unconvert
-    - goimports
     - unparam
+  settings:
+    govet:
+      disable:
+        # printf: non-constant format string in call to fmt.Errorf (govet)
+        # showing up since golangci-lint version 1.60.1
+        - printf
+    nakedret:
+      max-func-lines: 0 # Disallow any unnamed return statement
+  exclusions:
+    generated: lax
+    presets:
+      - comments
+      - common-false-positives
+      - legacy
+      - std-error-handling
+    paths:
+      - third_party$
+      - builtin$
+      - examples$
+formatters:
+  enable:
+    - gofmt
+    - goimports
+  exclusions:
+    generated: lax
+    paths:
+      - third_party$
+      - builtin$
+      - examples$

README.md

@@ -1,9 +1,7 @@
 # INI
 
 [![GitHub Workflow Status](https://img.shields.io/github/checks-status/go-ini/ini/main?logo=github&style=for-the-badge)](https://github.com/go-ini/ini/actions?query=branch%3Amain)
-[![codecov](https://img.shields.io/codecov/c/github/go-ini/ini/master?logo=codecov&style=for-the-badge)](https://codecov.io/gh/go-ini/ini)
 [![GoDoc](https://img.shields.io/badge/GoDoc-Reference-blue?style=for-the-badge&logo=go)](https://pkg.go.dev/github.com/go-ini/ini?tab=doc)
-[![Sourcegraph](https://img.shields.io/badge/view%20on-Sourcegraph-brightgreen.svg?style=for-the-badge&logo=sourcegraph)](https://sourcegraph.com/github.com/go-ini/ini)
 
 ![](https://avatars0.githubusercontent.com/u/10216035?v=3&s=200)
 
@@ -27,10 +25,14 @@ Package ini provides INI file read and write functionality in Go.
 The minimum requirement of Go is **1.13**.
 
 ```sh
-$ go get gopkg.in/ini.v1
+$ go get gopkg.in/ini.v1@latest
 ```
 
-Please add `-u` flag to update in the future.
+> [!NOTE]
+> If you previously used `github.com/go-ini/ini` as the import path in your project, without updating all of your code, you can use the following command to replace the import path in your `go.mod`:
+> ```zsh
+> go mod edit -replace github.com/go-ini/ini=gopkg.in/ini.v1@latest
+> ```
 
 ## Getting Help
 

go.mod

@@ -0,0 +1,5 @@
+module gopkg.in/ini.v1
+
+go 1.13
+
+require github.com/stretchr/testify v1.11.1

go.sum

@@ -0,0 +1,19 @@
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+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/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
+github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
+github.com/stretchr/objx v0.5.2/go.mod h1:FRsXN1f5AsAjCGJKqEizvkpNtU+EGNCLh3NxZ/8L+MA=
+github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
+github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
+github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
+github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

key.go

@@ -170,7 +170,7 @@ func (k *Key) transformValue(val string) string {
 		}
 
 		// Substitute by new value and take off leading '%(' and trailing ')s'.
-		val = strings.Replace(val, vr, nk.value, -1)
+		val = strings.ReplaceAll(val, vr, nk.value)
 	}
 	return val
 }
@@ -429,7 +429,7 @@ func (k *Key) InUint64(defaultVal uint64, candidates []uint64) uint64 {
 func (k *Key) InTimeFormat(format string, defaultVal time.Time, candidates []time.Time) time.Time {
 	val := k.MustTimeFormat(format)
 	for _, cand := range candidates {
-		if val == cand {
+		if val.Equal(cand) {
 			return val
 		}
 	}

parser.go

@@ -130,13 +130,14 @@ func readKeyName(delimiters string, in []byte) (string, int, error) {
 
 	// Check if key name surrounded by quotes.
 	var keyQuote string
-	if line[0] == '"' {
+	switch line[0] {
+	case '"':
 		if len(line) > 6 && line[0:3] == `"""` {
 			keyQuote = `"""`
 		} else {
 			keyQuote = `"`
 		}
-	} else if line[0] == '`' {
+	case '`':
 		keyQuote = "`"
 	}
 
@@ -253,7 +254,7 @@ func (p *parser) readValue(in []byte, bufferSize int) (string, error) {
 		}
 
 		if p.options.UnescapeValueDoubleQuotes && valQuote == `"` {
-			return strings.Replace(line[startIdx:pos+startIdx], `\"`, `"`, -1), nil
+			return strings.ReplaceAll(line[startIdx:pos+startIdx], `\"`, `"`), nil
 		}
 		return line[startIdx : pos+startIdx], nil
 	}

struct_test.go

@@ -243,7 +243,7 @@ func Test_MapToStruct(t *testing.T) {
 			assert.Equal(t, "[192.168 10.11]", fmt.Sprint(ts.Others.Coordinates))
 			assert.Equal(t, "[true false]", fmt.Sprint(ts.Others.Flags))
 			assert.Equal(t, "Hello world!", ts.Others.Note)
-			assert.Equal(t, 2.8, ts.TestEmbeded.GPA)
+			assert.Equal(t, 2.8, ts.GPA)
 
 			assert.Equal(t, "HangZhou,Boston", strings.Join(ts.OthersPtr.Cities, ","))
 			assert.Equal(t, ti.String(), ts.OthersPtr.Visits[0].String())