add tagalign linter (golangci#3709)

Author: 4meepo

.golangci.reference.yml

@@ -1739,6 +1739,39 @@ linters-settings:
     # Default: ["200", "400", "404", "500"]
     http-status-code-whitelist: [ "200", "400", "404", "500" ]
 
+  tagalign:
+    # Align and sort can be used together or separately.
+    #
+    # Whether enable align. If true, the struct tags will be aligned.
+    # eg:
+    # type FooBar struct {
+    #     Bar    string `json:"bar" validate:"required"`
+    #     FooFoo int8   `json:"foo_foo" validate:"required"`
+    # }
+    # will be formatted to:
+    # type FooBar struct {
+    #     Bar    string `json:"bar"     validate:"required"`
+    #     FooFoo int8   `json:"foo_foo" validate:"required"`
+    # }
+    # Default: true.
+    align: false
+    # Whether enable tags sort.
+    # If true, the tags will be sorted by name in ascending order.
+    # eg: `xml:"bar" json:"bar" validate:"required"` -> `json:"bar" validate:"required" xml:"bar"`
+    # Default: true
+    sort: false
+    # Specify the order of tags, the other tags will be sorted by name.
+    # This option will be ignored if `sort` is false.
+    # Default: []
+    order:
+      - json
+      - yaml
+      - yml
+      - toml
+      - mapstructure
+      - binding
+      - validate
+
   tagliatelle:
     # Check the struct tag name case.
     case:
@@ -2118,6 +2151,7 @@ linters:
     - staticcheck
     - structcheck
     - stylecheck
+    - tagalign
     - tagliatelle
     - tenv
     - testableexamples
@@ -2229,6 +2263,7 @@ linters:
     - staticcheck
     - structcheck
     - stylecheck
+    - tagalign
     - tagliatelle
     - tenv
     - testableexamples

go.mod

@@ -5,6 +5,7 @@ go 1.19
 require (
 	4d63.com/gocheckcompilerdirectives v1.2.1
 	4d63.com/gochecknoglobals v0.2.1
+	github.com/4meepo/tagalign v1.2.2
 	github.com/Abirdcfly/dupword v0.0.11
 	github.com/Antonboom/errname v0.1.9
 	github.com/Antonboom/nilnil v0.1.3

go.sum

@@ -110,6 +110,11 @@ var defaultLintersSettings = LintersSettings{
 		Ignore:    "",
 		Qualified: false,
 	},
+	TagAlign: TagAlignSettings{
+		Align: true,
+		Sort:  true,
+		Order: nil,
+	},
 	Testpackage: TestpackageSettings{
 		SkipRegexp:    `(export|internal)_test\.go`,
 		AllowPackages: []string{"main"},
@@ -203,6 +208,7 @@ type LintersSettings struct {
 	Staticcheck      StaticCheckSettings
 	Structcheck      StructCheckSettings
 	Stylecheck       StaticCheckSettings
+	TagAlign         TagAlignSettings
 	Tagliatelle      TagliatelleSettings
 	Tenv             TenvSettings
 	Testpackage      TestpackageSettings
@@ -655,6 +661,12 @@ type StructCheckSettings struct {
 	CheckExportedFields bool `mapstructure:"exported-fields"`
 }
 
+type TagAlignSettings struct {
+	Align bool     `mapstructure:"align"`
+	Sort  bool     `mapstructure:"sort"`
+	Order []string `mapstructure:"order"`
+}
+
 type TagliatelleSettings struct {
 	Case struct {
 		Rules        map[string]string

pkg/config/linters_settings.go

@@ -0,0 +1,70 @@
+package golinters
+
+import (
+	"sync"
+
+	"github.com/4meepo/tagalign"
+	"golang.org/x/tools/go/analysis"
+
+	"github.com/golangci/golangci-lint/pkg/config"
+	"github.com/golangci/golangci-lint/pkg/golinters/goanalysis"
+	"github.com/golangci/golangci-lint/pkg/lint/linter"
+	"github.com/golangci/golangci-lint/pkg/result"
+)
+
+func NewTagAlign(settings *config.TagAlignSettings) *goanalysis.Linter {
+	var mu sync.Mutex
+	var resIssues []goanalysis.Issue
+
+	options := []tagalign.Option{tagalign.WithMode(tagalign.GolangciLintMode)}
+
+	if settings != nil {
+		options = append(options, tagalign.WithAlign(settings.Align))
+
+		if settings.Sort || len(settings.Order) > 0 {
+			options = append(options, tagalign.WithSort(settings.Order...))
+		}
+	}
+
+	analyzer := tagalign.NewAnalyzer(options...)
+	analyzer.Run = func(pass *analysis.Pass) (any, error) {
+		taIssues := tagalign.Run(pass, options...)
+
+		issues := make([]goanalysis.Issue, len(taIssues))
+		for i, issue := range taIssues {
+			report := &result.Issue{
+				FromLinter: analyzer.Name,
+				Pos:        issue.Pos,
+				Text:       issue.Message,
+				Replacement: &result.Replacement{
+					Inline: &result.InlineFix{
+						StartCol:  issue.InlineFix.StartCol,
+						Length:    issue.InlineFix.Length,
+						NewString: issue.InlineFix.NewString,
+					},
+				},
+			}
+
+			issues[i] = goanalysis.NewIssue(report, pass)
+		}
+
+		if len(issues) == 0 {
+			return nil, nil
+		}
+
+		mu.Lock()
+		resIssues = append(resIssues, issues...)
+		mu.Unlock()
+
+		return nil, nil
+	}
+
+	return goanalysis.NewLinter(
+		analyzer.Name,
+		analyzer.Doc,
+		[]*analysis.Analyzer{analyzer},
+		nil,
+	).WithIssuesReporter(func(*linter.Context) []goanalysis.Issue {
+		return resIssues
+	}).WithLoadMode(goanalysis.LoadModeSyntax)
+}

pkg/golinters/tagalign.go

@@ -165,6 +165,7 @@ func (m Manager) GetAllSupportedLinterConfigs() []*linter.Config {
 		staticcheckCfg      *config.StaticCheckSettings
 		structcheckCfg      *config.StructCheckSettings
 		stylecheckCfg       *config.StaticCheckSettings
+		tagalignCfg         *config.TagAlignSettings
 		tagliatelleCfg      *config.TagliatelleSettings
 		tenvCfg             *config.TenvSettings
 		testpackageCfg      *config.TestpackageSettings
@@ -244,6 +245,7 @@ func (m Manager) GetAllSupportedLinterConfigs() []*linter.Config {
 		staticcheckCfg = &m.cfg.LintersSettings.Staticcheck
 		structcheckCfg = &m.cfg.LintersSettings.Structcheck
 		stylecheckCfg = &m.cfg.LintersSettings.Stylecheck
+		tagalignCfg = &m.cfg.LintersSettings.TagAlign
 		tagliatelleCfg = &m.cfg.LintersSettings.Tagliatelle
 		tenvCfg = &m.cfg.LintersSettings.Tenv
 		testpackageCfg = &m.cfg.LintersSettings.Testpackage
@@ -777,6 +779,12 @@ func (m Manager) GetAllSupportedLinterConfigs() []*linter.Config {
 			WithPresets(linter.PresetStyle).
 			WithURL("https://github.com/dominikh/go-tools/tree/master/stylecheck"),
 
+		linter.NewConfig(golinters.NewTagAlign(tagalignCfg)).
+			WithSince("v1.53.0").
+			WithPresets(linter.PresetStyle, linter.PresetFormatting).
+			WithAutoFix().
+			WithURL("https://github.com/4meepo/tagalign"),
+
 		linter.NewConfig(golinters.NewTagliatelle(tagliatelleCfg)).
 			WithSince("v1.40.0").
 			WithPresets(linter.PresetStyle).

pkg/lint/lintersdb/manager.go

@@ -0,0 +1,3 @@
+linters-settings:
+  tagalign:
+    sort: false

test/testdata/configs/tagalign_align_only.yml

@@ -0,0 +1,7 @@
+linters-settings:
+  tagalign:
+    align: false
+    order:
+      - "xml"
+      - "json"
+      - "yaml"

test/testdata/configs/tagalign_order_only.yml

@@ -0,0 +1,4 @@
+linters-settings:
+  tagalign:
+    align: false
+    sort: true

test/testdata/configs/tagalign_sort_only.yml

@@ -0,0 +1,15 @@
+//golangcitest:args -Etagalign
+package testdata
+
+import "time"
+
+type TagAlignExampleAlignSort struct {
+	Foo    time.Duration `json:"foo,omitempty" yaml:"foo" xml:"foo" binding:"required" gorm:"column:foo" zip:"foo" validate:"required"`                   // want `binding:"required" gorm:"column:foo"    json:"foo,omitempty"    validate:"required" xml:"foo"    yaml:"foo"    zip:"foo"`
+	Bar    int           `validate:"required"  yaml:"bar" xml:"bar" binding:"required" json:"bar,omitempty" gorm:"column:bar" zip:"bar" `                 // want `binding:"required" gorm:"column:bar"    json:"bar,omitempty"    validate:"required" xml:"bar"    yaml:"bar"    zip:"bar"`
+	FooBar int           `gorm:"column:fooBar" validate:"required"   xml:"fooBar" binding:"required" json:"fooBar,omitempty"  zip:"fooBar" yaml:"fooBar"` // want `binding:"required" gorm:"column:fooBar" json:"fooBar,omitempty" validate:"required" xml:"fooBar" yaml:"fooBar" zip:"fooBar"`
+}
+
+type TagAlignExampleAlignSort2 struct {
+	Foo int ` xml:"foo"  json:"foo,omitempty" yaml:"foo"  zip:"foo"  binding:"required" gorm:"column:foo"  validate:"required"` // want `binding:"required" gorm:"column:foo" json:"foo,omitempty" validate:"required" xml:"foo" yaml:"foo" zip:"foo"`
+	Bar int `validate:"required" gorm:"column:bar"  yaml:"bar" xml:"bar" binding:"required" json:"bar" zip:"bar" `              // want `binding:"required" gorm:"column:bar" json:"bar"           validate:"required" xml:"bar" yaml:"bar" zip:"bar"`
+}