Revert "Add IsAnnotated field to models.Tag struct"

It seems that `git for-each-ref` is a lot slower than `git tag --list` when
there are thousands of tags, so revert back to the previous method, now that we
no longer use the IsAnnotated field.

This reverts commit b12b1040c3.

pkg/commands/git_commands/tag_loader.go

@@ -1,7 +1,7 @@
 package git_commands
 
 import (
-	"strings"
+	"regexp"
 
 	"github.com/jesseduffield/lazygit/pkg/commands/models"
 	"github.com/jesseduffield/lazygit/pkg/commands/oscommands"
@@ -26,13 +26,9 @@ func NewTagLoader(
 }
 
 func (self *TagLoader) GetTags() ([]*models.Tag, error) {
-	// get tags, sorted by creation date (descending)
+	// get remote branches, sorted  by creation date (descending)
 	// see: https://git-scm.com/docs/git-tag#Documentation/git-tag.txt---sortltkeygt
-	cmdArgs := NewGitCmd("for-each-ref").
-		Arg("--sort=-creatordate").
-		Arg("--format=%(refname)%00%(objecttype)%00%(contents:subject)").
-		Arg("refs/tags").
-		ToArgv()
+	cmdArgs := NewGitCmd("tag").Arg("--list", "-n", "--sort=-creatordate").ToArgv()
 	tagsOutput, err := self.cmd.New(cmdArgs).DontLog().RunWithOutput()
 	if err != nil {
 		return nil, err
@@ -40,20 +36,20 @@ func (self *TagLoader) GetTags() ([]*models.Tag, error) {
 
 	split := utils.SplitLines(tagsOutput)
 
-	tags := lo.FilterMap(split, func(line string, _ int) (*models.Tag, bool) {
-		fields := strings.SplitN(line, "\x00", 3)
-		if len(fields) != 3 {
-			return nil, false
+	lineRegex := regexp.MustCompile(`^([^\s]+)(\s+)?(.*)$`)
+
+	tags := lo.Map(split, func(line string, _ int) *models.Tag {
+		matches := lineRegex.FindStringSubmatch(line)
+		tagName := matches[1]
+		message := ""
+		if len(matches) > 3 {
+			message = matches[3]
 		}
-		tagName := fields[0]
-		objectType := fields[1]
-		message := fields[2]
 
 		return &models.Tag{
-			Name:        strings.TrimPrefix(tagName, "refs/tags/"),
-			Message:     message,
-			IsAnnotated: objectType == "tag",
-		}, true
+			Name:    tagName,
+			Message: message,
+		}
 	})
 
 	return tags, nil

pkg/commands/git_commands/tag_loader_test.go

@@ -9,9 +9,10 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
-const tagsOutput = "refs/tags/tag1\x00tag\x00this is my message\n" +
-	"refs/tags/tag2\x00commit\x00\n" +
-	"refs/tags/tag3\x00tag\x00this is my other message\n"
+const tagsOutput = `tag1 this is my message
+tag2
+tag3 this is my other message
+`
 
 func TestGetTags(t *testing.T) {
 	type scenario struct {
@@ -25,18 +26,18 @@ func TestGetTags(t *testing.T) {
 		{
 			testName: "should return no tags if there are none",
 			runner: oscommands.NewFakeRunner(t).
-				ExpectGitArgs([]string{"for-each-ref", "--sort=-creatordate", "--format=%(refname)%00%(objecttype)%00%(contents:subject)", "refs/tags"}, "", nil),
+				ExpectGitArgs([]string{"tag", "--list", "-n", "--sort=-creatordate"}, "", nil),
 			expectedTags:  []*models.Tag{},
 			expectedError: nil,
 		},
 		{
 			testName: "should return tags if present",
 			runner: oscommands.NewFakeRunner(t).
-				ExpectGitArgs([]string{"for-each-ref", "--sort=-creatordate", "--format=%(refname)%00%(objecttype)%00%(contents:subject)", "refs/tags"}, tagsOutput, nil),
+				ExpectGitArgs([]string{"tag", "--list", "-n", "--sort=-creatordate"}, tagsOutput, nil),
 			expectedTags: []*models.Tag{
-				{Name: "tag1", Message: "this is my message", IsAnnotated: true},
-				{Name: "tag2", Message: "", IsAnnotated: false},
-				{Name: "tag3", Message: "this is my other message", IsAnnotated: true},
+				{Name: "tag1", Message: "this is my message"},
+				{Name: "tag2", Message: ""},
+				{Name: "tag3", Message: "this is my other message"},
 			},
 			expectedError: nil,
 		},

pkg/commands/models/tag.go

@@ -3,13 +3,9 @@ package models
 // Tag : A git tag
 type Tag struct {
 	Name string
-
 	// this is either the first line of the message of an annotated tag, or the
 	// first line of a commit message for a lightweight tag
 	Message string
-
-	// true if this is an annotated tag, false if it's a lightweight tag
-	IsAnnotated bool
 }
 
 func (t *Tag) FullRefName() string {