Replace DateTime with proper functions (#32402)

Follow #32383

This PR cleans up the "Deadline" usages in templates, make them call
`ParseLegacy` first to get a `Time` struct then display by `DateUtils`.

Now it should be pretty clear how "deadline string" works, it makes it
possible to do further refactoring and correcting.

modules/templates/helper.go

@@ -54,7 +54,7 @@ func NewFuncMap() template.FuncMap {
 		"StringUtils": NewStringUtils,
 		"SliceUtils":  NewSliceUtils,
 		"JsonUtils":   NewJsonUtils,
-		"DateUtils":   NewDateUtils, // TODO: to be replaced by DateUtils
+		"DateUtils":   NewDateUtils,
 
 		// -----------------------------------------------------------------
 		// svg / avatar / icon / color
@@ -71,7 +71,7 @@ func NewFuncMap() template.FuncMap {
 		"CountFmt":      base.FormatNumberSI,
 		"TimeSince":     timeutil.TimeSince,
 		"TimeSinceUnix": timeutil.TimeSinceUnix,
-		"DateTime":      timeutil.DateTime,
+		"DateTime":      dateTimeLegacy, // for backward compatibility only, do not use it anymore
 		"Sec2Time":      util.SecToTime,
 		"LoadTimes": func(startTime time.Time) string {
 			return fmt.Sprint(time.Since(startTime).Nanoseconds()/1e6) + "ms"

modules/templates/util_date.go

@@ -6,7 +6,9 @@ package templates
 import (
 	"context"
 	"html/template"
+	"time"
 
+	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/timeutil"
 )
 
@@ -32,3 +34,27 @@ func (du *DateUtils) AbsoluteLong(time any) template.HTML {
 func (du *DateUtils) FullTime(time any) template.HTML {
 	return timeutil.DateTime("full", time)
 }
+
+// ParseLegacy parses the datetime in legacy format, eg: "2016-01-02" in server's timezone.
+// It shouldn't be used in new code. New code should use Time or TimeStamp as much as possible.
+func (du *DateUtils) ParseLegacy(datetime string) time.Time {
+	return parseLegacy(datetime)
+}
+
+func parseLegacy(datetime string) time.Time {
+	t, err := time.Parse(time.RFC3339, datetime)
+	if err != nil {
+		t, _ = time.ParseInLocation(time.DateOnly, datetime, setting.DefaultUILocation)
+	}
+	return t
+}
+
+func dateTimeLegacy(format string, datetime any, _ ...string) template.HTML {
+	if !setting.IsProd || setting.IsInTesting {
+		panic("dateTimeLegacy is for backward compatibility only, do not use it in new code")
+	}
+	if s, ok := datetime.(string); ok {
+		datetime = parseLegacy(s)
+	}
+	return timeutil.DateTime(format, datetime)
+}

modules/templates/util_date_test.go

@@ -1,7 +1,7 @@
 // Copyright 2023 The Gitea Authors. All rights reserved.
 // SPDX-License-Identifier: MIT
 
-package timeutil
+package templates
 
 import (
 	"testing"
@@ -9,6 +9,7 @@ import (
 
 	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/test"
+	"code.gitea.io/gitea/modules/timeutil"
 
 	"github.com/stretchr/testify/assert"
 )
@@ -16,32 +17,35 @@ import (
 func TestDateTime(t *testing.T) {
 	testTz, _ := time.LoadLocation("America/New_York")
 	defer test.MockVariableValue(&setting.DefaultUILocation, testTz)()
+	defer test.MockVariableValue(&setting.IsInTesting, false)()
+
+	du := NewDateUtils(nil)
 
 	refTimeStr := "2018-01-01T00:00:00Z"
 	refDateStr := "2018-01-01"
 	refTime, _ := time.Parse(time.RFC3339, refTimeStr)
-	refTimeStamp := TimeStamp(refTime.Unix())
+	refTimeStamp := timeutil.TimeStamp(refTime.Unix())
 
-	assert.EqualValues(t, "-", DateTime("short", nil))
-	assert.EqualValues(t, "-", DateTime("short", 0))
-	assert.EqualValues(t, "-", DateTime("short", time.Time{}))
-	assert.EqualValues(t, "-", DateTime("short", TimeStamp(0)))
+	assert.EqualValues(t, "-", du.AbsoluteShort(nil))
+	assert.EqualValues(t, "-", du.AbsoluteShort(0))
+	assert.EqualValues(t, "-", du.AbsoluteShort(time.Time{}))
+	assert.EqualValues(t, "-", du.AbsoluteShort(timeutil.TimeStamp(0)))
 
-	actual := DateTime("short", "invalid")
-	assert.EqualValues(t, `<absolute-date weekday="" year="numeric" month="short" day="numeric" date="invalid">invalid</absolute-date>`, actual)
+	actual := dateTimeLegacy("short", "invalid")
+	assert.EqualValues(t, `-`, actual)
 
-	actual = DateTime("short", refTimeStr)
-	assert.EqualValues(t, `<absolute-date weekday="" year="numeric" month="short" day="numeric" date="2018-01-01T00:00:00Z">2018-01-01T00:00:00Z</absolute-date>`, actual)
-
-	actual = DateTime("short", refTime)
+	actual = dateTimeLegacy("short", refTimeStr)
 	assert.EqualValues(t, `<absolute-date weekday="" year="numeric" month="short" day="numeric" date="2018-01-01T00:00:00Z">2018-01-01</absolute-date>`, actual)
 
-	actual = DateTime("short", refDateStr)
-	assert.EqualValues(t, `<absolute-date weekday="" year="numeric" month="short" day="numeric" date="2018-01-01">2018-01-01</absolute-date>`, actual)
+	actual = du.AbsoluteShort(refTime)
+	assert.EqualValues(t, `<absolute-date weekday="" year="numeric" month="short" day="numeric" date="2018-01-01T00:00:00Z">2018-01-01</absolute-date>`, actual)
 
-	actual = DateTime("short", refTimeStamp)
+	actual = dateTimeLegacy("short", refDateStr)
+	assert.EqualValues(t, `<absolute-date weekday="" year="numeric" month="short" day="numeric" date="2018-01-01T00:00:00-05:00">2018-01-01</absolute-date>`, actual)
+
+	actual = du.AbsoluteShort(refTimeStamp)
 	assert.EqualValues(t, `<absolute-date weekday="" year="numeric" month="short" day="numeric" date="2017-12-31T19:00:00-05:00">2017-12-31</absolute-date>`, actual)
 
-	actual = DateTime("full", refTimeStamp)
+	actual = du.FullTime(refTimeStamp)
 	assert.EqualValues(t, `<relative-time weekday="" year="numeric" format="datetime" month="short" day="numeric" hour="numeric" minute="numeric" second="numeric" data-tooltip-content data-tooltip-interactive="true" datetime="2017-12-31T19:00:00-05:00">2017-12-31 19:00:00 -05:00</relative-time>`, actual)
 }

modules/timeutil/datetime.go

@@ -12,9 +12,7 @@ import (
 )
 
 // DateTime renders an absolute time HTML element by datetime.
-func DateTime(format string, datetime any, extraAttrs ...string) template.HTML {
-	// TODO: remove the extraAttrs argument, it's not used in any call to DateTime
-
+func DateTime(format string, datetime any) template.HTML {
 	if p, ok := datetime.(*time.Time); ok {
 		datetime = *p
 	}
@@ -34,9 +32,6 @@ func DateTime(format string, datetime any, extraAttrs ...string) template.HTML {
 	switch v := datetime.(type) {
 	case nil:
 		return "-"
-	case string:
-		datetimeEscaped = html.EscapeString(v)
-		textEscaped = datetimeEscaped
 	case time.Time:
 		if v.IsZero() || v.Unix() == 0 {
 			return "-"
@@ -51,10 +46,7 @@ func DateTime(format string, datetime any, extraAttrs ...string) template.HTML {
 		panic(fmt.Sprintf("Unsupported time type %T", datetime))
 	}
 
-	attrs := make([]string, 0, 10+len(extraAttrs))
-	attrs = append(attrs, extraAttrs...)
-	attrs = append(attrs, `weekday=""`, `year="numeric"`)
-
+	attrs := []string{`weekday=""`, `year="numeric"`}
 	switch format {
 	case "short", "long": // date only
 		attrs = append(attrs, `month="`+format+`"`, `day="numeric"`)

templates/repo/issue/milestone_issues.tmpl

@@ -38,7 +38,7 @@
 						{{if .Milestone.DeadlineString}}
 							<span{{if .IsOverdue}} class="text red"{{end}}>
 								{{svg "octicon-calendar"}}
-								{{DateTime "short" .Milestone.DeadlineString}}
+								{{ctx.DateUtils.AbsoluteShort (.Milestone.DeadlineString|ctx.DateUtils.ParseLegacy)}}
 							</span>
 						{{else}}
 							{{svg "octicon-calendar"}}

templates/repo/issue/milestones.tmpl

@@ -59,7 +59,7 @@
 									{{if .DeadlineString}}
 										<span class="flex-text-inline {{if .IsOverdue}}text red{{end}}">
 											{{svg "octicon-calendar" 14}}
-											{{DateTime "short" .DeadlineString}}
+											{{ctx.DateUtils.AbsoluteShort (.DeadlineString|ctx.DateUtils.ParseLegacy)}}
 										</span>
 									{{else}}
 										{{svg "octicon-calendar" 14}}

templates/repo/issue/view_content/comments.tmpl

@@ -296,7 +296,8 @@
 				{{template "shared/user/avatarlink" dict "user" .Poster}}
 				<span class="text grey muted-links">
 					{{template "shared/user/authorlink" .Poster}}
-					{{ctx.Locale.Tr "repo.issues.due_date_added" (DateTime "long" .Content) $createdStr}}
+					{{$dueDate := ctx.DateUtils.AbsoluteLong (.Content|ctx.DateUtils.ParseLegacy)}}
+					{{ctx.Locale.Tr "repo.issues.due_date_added" $dueDate $createdStr}}
 				</span>
 			</div>
 		{{else if eq .Type 17}}
@@ -307,8 +308,8 @@
 					{{template "shared/user/authorlink" .Poster}}
 					{{$parsedDeadline := StringUtils.Split .Content "|"}}
 					{{if eq (len $parsedDeadline) 2}}
-						{{$from := DateTime "long" (index $parsedDeadline 1)}}
-						{{$to := DateTime "long" (index $parsedDeadline 0)}}
+						{{$to := ctx.DateUtils.AbsoluteLong ((index $parsedDeadline 0)|ctx.DateUtils.ParseLegacy)}}
+						{{$from := ctx.DateUtils.AbsoluteLong ((index $parsedDeadline 1)|ctx.DateUtils.ParseLegacy)}}
 						{{ctx.Locale.Tr "repo.issues.due_date_modified" $to $from $createdStr}}
 					{{end}}
 				</span>
@@ -319,7 +320,8 @@
 				{{template "shared/user/avatarlink" dict "user" .Poster}}
 				<span class="text grey muted-links">
 					{{template "shared/user/authorlink" .Poster}}
-					{{ctx.Locale.Tr "repo.issues.due_date_remove" (DateTime "long" .Content) $createdStr}}
+					{{$dueDate := ctx.DateUtils.AbsoluteLong (.Content|ctx.DateUtils.ParseLegacy)}}
+					{{ctx.Locale.Tr "repo.issues.due_date_remove" $dueDate $createdStr}}
 				</span>
 			</div>
 		{{else if eq .Type 19}}

templates/user/dashboard/milestones.tmpl

@@ -116,7 +116,7 @@
 											{{if .DeadlineString}}
 												<span{{if .IsOverdue}} class="text red"{{end}}>
 													{{svg "octicon-calendar" 14}}
-													{{DateTime "short" .DeadlineString}}
+													{{ctx.DateUtils.AbsoluteShort (.DeadlineString|ctx.DateUtils.ParseLegacy)}}
 												</span>
 											{{else}}
 												{{svg "octicon-calendar" 14}}