Add new command to create a change-file

.github/workflows/go.yml

@@ -46,4 +46,4 @@ jobs:
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v3
         with:
-          version: v1.54.1
+          version: v1.61.0

.gitignore

@@ -25,3 +25,6 @@ coverage.xml
 
 # Gorelease output
 dist/
+
+# VSCode configurations.
+.vscode/launch.json

.golangci.yml

@@ -1,6 +1,6 @@
 ---
 run:
-  go: '1.21.3'
+  go: '1.23.2'
 
 linters:
   disable-all: false
@@ -14,21 +14,21 @@ linters:
     - bodyclose
     - containedctx
     - contextcheck
+    - copyloopvar
     - cyclop
     - decorder
     - depguard
     - dogsled
     - dupl
     - dupword
     - durationcheck
+    - err113
     - errcheck
     - errchkjson
     - errname
     - errorlint
-    - execinquery
     - exhaustive
     - exhaustruct
-    - exportloopref
     - forbidigo
     - forcetypeassert
     - funlen
@@ -42,12 +42,10 @@ linters:
     - gocyclo
     - godot
     - godox
-    - goerr113
     - gofmt
     - gofumpt
     - goheader
     - goimports
-    - gomnd
     - gomoddirectives
     - gomodguard
     - goprintffuncname
@@ -66,6 +64,7 @@ linters:
     - makezero
     - mirror
     - misspell
+    - mnd
     - musttag
     - nakedret
     - nestif

README.md

@@ -50,38 +50,62 @@ Usage: conflictless <command> [flags]
 The commands are:
 
         check           Checks that change-files are valid
+        create          Creates a new change-file
         generate        Generates a version entry to changelog file
         help            Prints this help message
 
 Use "conflictless help <topic>" for more information about that topic.
 ```
 
-`conflictless help generate`
+`conflictless help check`
 
 ``` txt
-Usage: conflictless generate [flags]
+Usage: conflictless check [flags]
 
 The flags are:
 
-        -b, --bump
-                Bump version patch/minor/major (default: minor)
-        -c, --changelog
-                Changelog file (default: CHANGELOG.md)
         -d, --dir
                 Directory where to look for change-files (default: changes)
-        -s, --skip-version-links
-                Skip version links in changelog file (default: false)
 ```
 
-`conflictless help check`
+`conflictless help create`
 
 ```txt
-Usage: conflictless check [flags]
+Usage: conflictless create [flags]
+
+The flags are:
+
+        -d, --dir
+                Directory where the change-file should be created (default: changes)
+        -f, --format
+                File format and extension yml/yaml/json for the change-file (default: yml)
+        -t, --types
+                Types of changes you want for the change-file (default: changed)
+
+                Multiple values can be given by separating values with commas.
+                Example: '--format added,changed,deprecated,removed,fixed,security'.
+        -n, --name
+                Name for the change-file without file extension
+
+                If this flag is not given the name will be derived from the name of the
+                current git branch you're on.
+```
+
+`conflictless help generate`
+
+``` txt
+Usage: conflictless generate [flags]
 
 The flags are:
 
+        -b, --bump
+                Bump version patch/minor/major (default: minor)
+        -c, --changelog
+                Changelog file (default: CHANGELOG.md)
         -d, --dir
                 Directory where to look for change-files (default: changes)
+        -s, --skip-version-links
+                Skip version links in changelog file (default: false)
 ```
 
 ## Suggested workflow

changes/2-create-a-change-file.yml

@@ -0,0 +1,3 @@
+---
+added:
+  - "New command 'create'"

go.mod

@@ -1,6 +1,6 @@
 module github.com/ypjama/conflictless-keepachangelog
 
-go 1.21.3
+go 1.23.2
 
 require (
 	github.com/stretchr/testify v1.3.0
@@ -13,4 +13,5 @@ require (
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/xeipuuv/gojsonpointer v0.0.0-20180127040702-4e3ac2762d5f // indirect
 	github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415 // indirect
+	golang.org/x/text v0.19.0 // indirect
 )

go.sum

@@ -11,6 +11,8 @@ github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415 h1:EzJWgHo
 github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415/go.mod h1:GwrjFmJcFw6At/Gs6z4yjiIwzuJ1/+UwLxMQDVQXShQ=
 github.com/xeipuuv/gojsonschema v1.2.0 h1:LhYJRs+L4fBtjZUfuSZIKGeVu0QRy8e5Xi7D17UxZ74=
 github.com/xeipuuv/gojsonschema v1.2.0/go.mod h1:anYRn/JVcOK2ZgGU+IjEV4nwlhoK5sQluxsYJ78Id3Y=
+golang.org/x/text v0.19.0 h1:kTxAhCbGbxhK0IwgSKiMO5awPoDQ0RpfiVYBfK860YM=
+golang.org/x/text v0.19.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
 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 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=

internal/pkg/conflictless/bump_test.go

@@ -20,9 +20,6 @@ func TestInitialVersion(t *testing.T) {
 		{"major", conflictless.BumpMajor, "1.0.0"},
 		{"unknown", conflictless.Bump(123), "0.1.0"},
 	} {
-		// Reinitialise testCase for parallel testing.
-		testCase := testCase
-
 		t.Run(testCase.description, func(t *testing.T) {
 			t.Parallel()
 

internal/pkg/conflictless/changelog.go

@@ -11,7 +11,6 @@ import (
 
 const (
 	minSemverParts = 3
-	writeFileMode  = 0o644
 )
 
 type Changelog struct {

internal/pkg/conflictless/cli.go

@@ -8,32 +8,43 @@ import (
 )
 
 const (
-	argIdxCommand        = 1
-	argIdxHelpTopic      = 2
-	exitCodeSuccess      = 0
-	exitCodeGeneralError = 1
-	exitCodeMisuseError  = 2
-	commandCheck         = "check"
-	commandGen           = "generate"
-	commandHelp          = "help"
-	defaultBump          = BumpMinor
-	minArguments         = 2
+	argIdxCommand           = 1
+	argIdxHelpTopic         = 2
+	commandCheck            = "check"
+	commandCreate           = "create"
+	commandGen              = "generate"
+	commandHelp             = "help"
+	defaultBump             = BumpMinor
+	defaultChangeFileFormat = "yml"
+	defaultChangeTypesCSV   = "changed"
+	defaultDirectory        = "changes"
+	exitCodeGeneralError    = 1
+	exitCodeMisuseError     = 2
+	exitCodeSuccess         = 0
+	minArguments            = 2
 )
 
 func CLI() {
 	cfg := Config{
 		Flags: FlagCollection{
 			Bump:             new(string),
+			ChangeFileFormat: new(string),
+			ChangeFileName:   new(string),
 			ChangelogFile:    new(string),
+			ChangeTypesCsv:   new(string),
 			Command:          "",
 			Directory:        new(string),
 			SkipVersionLinks: false,
 		},
 		Bump:                 defaultBump,
+		Changelog:            nil,
 		ChangelogFile:        "CHANGELOG.md",
+		ChangeFile:           "",
+		ChangeTypesCsv:       defaultChangeTypesCSV,
+		ChangeFileFormat:     defaultChangeFileFormat,
+		Directory:            defaultDirectory,
 		RepositoryConfigFile: ".git/config",
-		Changelog:            nil,
-		Directory:            "changes",
+		RepositoryHeadFile:   ".git/HEAD",
 	}
 	parseCLIFlags(&cfg)
 
@@ -44,6 +55,8 @@ func CLI() {
 	switch cfg.Flags.Command {
 	case commandCheck:
 		Check(&cfg)
+	case commandCreate:
+		Create(&cfg)
 	case commandGen:
 		Generate(&cfg)
 	case commandHelp:
@@ -95,6 +108,14 @@ func parseCLIFlags(cfg *Config) {
 		cmd.Usage = usageCheckOnError
 
 		defineDirFlags(cfg, cmd)
+	case commandCreate:
+		cmd = flag.NewFlagSet(commandCreate, flag.ExitOnError)
+		cmd.Usage = usageCreateOnError
+
+		defineFormatFlags(cfg, cmd)
+		defineCreateTypeFlags(cfg, cmd)
+		defineDirFlags(cfg, cmd)
+		defineChangeFileNameFlags(cfg, cmd)
 	}
 
 	if cmd != nil {
@@ -126,6 +147,21 @@ func defineDirFlags(cfg *Config, fs *flag.FlagSet) {
 	fs.StringVar(cfg.Flags.Directory, "d", defaultDir, "")
 }
 
+func defineFormatFlags(cfg *Config, fs *flag.FlagSet) {
+	fs.StringVar(cfg.Flags.ChangeFileFormat, "format", defaultChangeFileFormat, "")
+	fs.StringVar(cfg.Flags.ChangeFileFormat, "f", defaultChangeFileFormat, "")
+}
+
+func defineCreateTypeFlags(cfg *Config, fs *flag.FlagSet) {
+	fs.StringVar(cfg.Flags.ChangeTypesCsv, "types", defaultChangeTypesCSV, "")
+	fs.StringVar(cfg.Flags.ChangeTypesCsv, "t", defaultChangeTypesCSV, "")
+}
+
+func defineChangeFileNameFlags(cfg *Config, fs *flag.FlagSet) {
+	fs.StringVar(cfg.Flags.ChangeFileName, "name", "", "")
+	fs.StringVar(cfg.Flags.ChangeFileName, "n", "", "")
+}
+
 func defineSkipFlags(cfg *Config, fs *flag.FlagSet) {
 	fs.BoolVar(&cfg.Flags.SkipVersionLinks, "skip-version-links", false, "")
 	fs.BoolVar(&cfg.Flags.SkipVersionLinks, "s", false, "")

internal/pkg/conflictless/cli_test.go

@@ -111,12 +111,10 @@ func TestCLIHelp(t *testing.T) {
 	}{
 		{"help", []string{"help"}, false},
 		{"help check", []string{"help", "check"}, false},
+		{"help create", []string{"help", "create"}, false},
 		{"help generate", []string{"help", "generate"}, false},
 		{"help unknown", []string{"help", "unknown"}, true},
 	} {
-		// Reinitialise testCase for parallel testing.
-		testCase := testCase
-
 		t.Run(testCase.description, func(t *testing.T) {
 			t.Parallel()
 
@@ -213,3 +211,60 @@ func TestCLIGenerateWithInvalidFlags(t *testing.T) {
 	assert.Empty(t, string(stdoutData))
 	assert.NotEmpty(t, string(stderrData))
 }
+
+func TestCLICreateWithInvalidFlags(t *testing.T) {
+	t.Parallel()
+
+	if os.Getenv("TEST_CLI_CREATE_INVALID_FLAGS") != "" {
+		conflictless.CLI()
+
+		return
+	}
+
+	stdoutFile := createTempFile(t, os.TempDir(), "test-cli-create-with-invalid-flags-stdout")
+	defer os.Remove(stdoutFile.Name())
+
+	stderrFile := createTempFile(t, os.TempDir(), "test-cli-create-with-invalid-flags-stderr")
+	defer os.Remove(stderrFile.Name())
+
+	//nolint:gosec // this is a test package so G204 doesn't really matter here.
+	cmd := exec.Command(
+		os.Args[0],
+		"-test.run=^TestCLICreateWithInvalidFlags$",
+		"create",
+		"--dir",
+		"jaybird",
+		"--format",
+		"xml",
+		"--types",
+		"added,changed",
+		"--name",
+		"harmless-catfish",
+	)
+
+	cmd.Stdout = stdoutFile
+	cmd.Stderr = stderrFile
+
+	cmd.Env = append(os.Environ(), "TEST_CLI_CREATE_INVALID_FLAGS=1")
+	err := cmd.Run()
+
+	assert.Error(t, err)
+	assert.IsType(t, new(exec.ExitError), err)
+
+	exitErr := new(*exec.ExitError)
+	errors.As(err, exitErr)
+
+	expectedCode := 2
+	exitCode := (*exitErr).ExitCode()
+
+	assert.Equal(t, expectedCode, exitCode, "process exited with %d, want exit status %d", expectedCode, exitCode)
+
+	stdoutData, err := os.ReadFile(stdoutFile.Name())
+	assert.NoError(t, err)
+
+	stderrData, err := os.ReadFile(stderrFile.Name())
+	assert.NoError(t, err)
+
+	assert.Empty(t, string(stdoutData))
+	assert.NotEmpty(t, string(stderrData))
+}