Add headerLevel option (#53)

Signed-off-by: Sascha Grunert <sgrunert@suse.com>

.circleci/config.yml

@@ -94,15 +94,14 @@ jobs:
       - checkout
       - restore_cache:
           keys:
-            - v1-golangci-lint-{{ checksum "go.sum" }}
+            - v2-golangci-lint-{{ checksum "go.sum" }}
       - run:
           name: lint
           command: make lint
       - save_cache:
-          key: v1-golangci-lint-{{ checksum "go.sum" }}
+          key: v2-golangci-lint-{{ checksum "go.sum" }}
           paths:
             - *gocache
-            - build/golangci-lint
 
   test:
     executor: container

.golangci.yml

@@ -5,6 +5,7 @@ run:
 linters:
   disable-all: true
   enable:
+    - asciicheck
     - bodyclose
     - deadcode
     - depguard
@@ -21,6 +22,7 @@ linters:
     - gofmt
     - goimports
     - golint
+    - gomodguard
     - goprintffuncname
     - gosec
     - gosimple
@@ -31,20 +33,25 @@ linters:
     - maligned
     - misspell
     - nakedret
+    - nolintlint
     - prealloc
     - rowserrcheck
     - scopelint
     - staticcheck
     - structcheck
     - stylecheck
+    - testpackage
     - typecheck
     - unconvert
     - unparam
     - unused
     - varcheck
     - whitespace
     # - funlen
+    # - godot
+    # - goerr113
     # - gomnd
+    # - nestif
     # - wsl
 linters-settings:
   errcheck:

Makefile

@@ -49,7 +49,7 @@ $(GO_MODIFF_STATIC):
 
 $(GOLANGCI_LINT):
 	export \
-		VERSION=v1.24.0 \
+		VERSION=v1.27.0 \
 		URL=https://raw.githubusercontent.com/golangci/golangci-lint \
 		BINDIR=$(BUILD_PATH) && \
 	curl -sfL $$URL/$$VERSION/install.sh | sh -s $$VERSION

cmd/go-modiff/main.go

@@ -12,18 +12,19 @@ import (
 )
 
 const (
-	repositoryArg = "repository"
-	fromArg       = "from"
-	toArg         = "to"
-	linkArg       = "link"
+	repositoryArg  = "repository"
+	fromArg        = "from"
+	toArg          = "to"
+	linkArg        = "link"
+	headerLevelArg = "header-level"
 )
 
 func main() {
 	const debugFlag = "debug"
 
 	app := ccli.NewApp()
 	app.Name = "go-modiff"
-	app.Version = "1.0.3"
+	app.Version = "1.1.0"
 	app.Authors = []*cli.Author{
 		{Name: "Sascha Grunert", Email: "mail@saschagrunert.de"},
 	}
@@ -57,6 +58,12 @@ func main() {
 			Aliases: []string{"l"},
 			Usage:   "add diff links to the markdown output",
 		},
+		&cli.UintFlag{
+			Name:    headerLevelArg,
+			Aliases: []string{"i"},
+			Value:   1,
+			Usage:   "add a higher markdown header level depth",
+		},
 		&cli.BoolFlag{
 			Name:    debugFlag,
 			Aliases: []string{"d"},
@@ -101,6 +108,7 @@ func main() {
 			c.String(fromArg),
 			c.String(toArg),
 			c.Bool(linkArg),
+			c.Uint(headerLevelArg),
 		)
 		res, err := modiff.Run(config)
 		if err != nil {

completions/go-modiff.fish

@@ -13,6 +13,7 @@ complete -c go-modiff -n '__fish_go-modiff_no_subcommand' -f -l repository -s r
 complete -c go-modiff -n '__fish_go-modiff_no_subcommand' -f -l from -s f -r -d 'the start of the comparison, any valid git rev'
 complete -c go-modiff -n '__fish_go-modiff_no_subcommand' -f -l to -s t -r -d 'the end of the comparison, any valid git rev'
 complete -c go-modiff -n '__fish_go-modiff_no_subcommand' -f -l link -s l -d 'add diff links to the markdown output'
+complete -c go-modiff -n '__fish_go-modiff_no_subcommand' -f -l header-level -s i -r -d 'add a higher markdown header level depth'
 complete -c go-modiff -n '__fish_go-modiff_no_subcommand' -f -l debug -s d -d 'enable debug output'
 complete -c go-modiff -n '__fish_go-modiff_no_subcommand' -f -l help -s h -d 'show help'
 complete -c go-modiff -n '__fish_go-modiff_no_subcommand' -f -l version -s v -d 'print the version'

docs/go-modiff.8

@@ -16,6 +16,7 @@ go\-modiff
 .nf
 [\-\-debug|\-d]
 [\-\-from|\-f]=[value]
+[\-\-header\-level|\-i]=[value]
 [\-\-help|\-h]
 [\-\-link|\-l]
 [\-\-repository|\-r]=[value]
@@ -50,6 +51,9 @@ go\-modiff [GLOBAL OPTIONS] command [COMMAND OPTIONS] [ARGUMENTS...]
 .PP
 \fB\-\-from, \-f\fP="": the start of the comparison, any valid git rev (default: master)
 
+.PP
+\fB\-\-header\-level, \-i\fP="": add a higher markdown header level depth (default: 1)
+
 .PP
 \fB\-\-help, \-h\fP: show help
 

docs/go-modiff.8.md

@@ -11,6 +11,7 @@ go-modiff
 ```
 [--debug|-d]
 [--from|-f]=[value]
+[--header-level|-i]=[value]
 [--help|-h]
 [--link|-l]
 [--repository|-r]=[value]
@@ -34,6 +35,8 @@ go-modiff [GLOBAL OPTIONS] command [COMMAND OPTIONS] [ARGUMENTS...]
 
 **--from, -f**="": the start of the comparison, any valid git rev (default: master)
 
+**--header-level, -i**="": add a higher markdown header level depth (default: 1)
+
 **--help, -h**: show help
 
 **--link, -l**: add diff links to the markdown output

pkg/modiff/modiff.go

@@ -21,15 +21,16 @@ type modules = map[string]versions
 
 // Config is the structure passed to `Run`
 type Config struct {
-	repository string
-	from       string
-	to         string
-	link       bool
+	repository  string
+	from        string
+	to          string
+	link        bool
+	headerLevel uint
 }
 
 // NewConfig creates a new configuration
-func NewConfig(repository, from, to string, link bool) *Config {
-	return &Config{repository, from, to, link}
+func NewConfig(repository, from, to string, link bool, headerLevel uint) *Config {
+	return &Config{repository, from, to, link, headerLevel}
 }
 
 // Run starts go modiff and returns the markdown string
@@ -74,7 +75,7 @@ func Run(config *Config) (string, error) {
 	if err != nil {
 		return "", err
 	}
-	return diffModules(mods, config.link), nil
+	return diffModules(mods, config.link, config.headerLevel), nil
 }
 
 func toURL(name string) string {
@@ -95,7 +96,7 @@ func logErr(msg interface{}) (string, error) {
 	return "", err
 }
 
-func diffModules(mods modules, addLinks bool) string {
+func diffModules(mods modules, addLinks bool, headerLevel uint) string {
 	var added, removed, changed []string
 	for name, mod := range mods {
 		txt := fmt.Sprintf("- %s: ", name)
@@ -135,9 +136,13 @@ func diffModules(mods modules, addLinks bool) string {
 
 	// Pretty print
 	builder := &strings.Builder{}
-	builder.WriteString("# Dependencies\n")
+	builder.WriteString(fmt.Sprintf(
+		"%s Dependencies\n", strings.Repeat("#", int(headerLevel)),
+	))
 	forEach := func(section string, input []string) {
-		builder.WriteString(fmt.Sprintf("\n## %s\n", section))
+		builder.WriteString(fmt.Sprintf("\n%s %s\n",
+			strings.Repeat("#", int(headerLevel)+1), section,
+		))
 		if len(input) > 0 {
 			for _, mod := range input {
 				builder.WriteString(fmt.Sprintf("%s\n", mod))

pkg/modiff/modiff_test.go

@@ -52,7 +52,7 @@ _Nothing has changed._
 
 	It("should succeed", func() {
 		// Given
-		config := modiff.NewConfig(repo, from, to, false)
+		config := modiff.NewConfig(repo, from, to, false, 1)
 
 		// When
 		res, err := modiff.Run(config)
@@ -64,7 +64,7 @@ _Nothing has changed._
 
 	It("should succeed with links", func() {
 		// Given
-		config := modiff.NewConfig(repo, from, to, true)
+		config := modiff.NewConfig(repo, from, to, true, 1)
 
 		// When
 		res, err := modiff.Run(config)
@@ -86,7 +86,7 @@ _Nothing has changed._
 
 	It("should fail if 'repository' not given", func() {
 		// Given
-		config := modiff.NewConfig("", from, to, true)
+		config := modiff.NewConfig("", from, to, true, 1)
 
 		// When
 		res, err := modiff.Run(config)
@@ -98,7 +98,7 @@ _Nothing has changed._
 
 	It("should fail if 'from' equals 'to'", func() {
 		// Given
-		config := modiff.NewConfig(repo, "", "", true)
+		config := modiff.NewConfig(repo, "", "", true, 1)
 
 		// When
 		res, err := modiff.Run(config)
@@ -110,7 +110,7 @@ _Nothing has changed._
 
 	It("should fail if repository is not clone-able", func() {
 		// Given
-		config := modiff.NewConfig("invalid", from, "", true)
+		config := modiff.NewConfig("invalid", from, "", true, 1)
 
 		// When
 		res, err := modiff.Run(config)