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       tpl/time: Add time.In function - hugo - [fork] hugo port for 9front
  HTML git clone git@git.drkhsh.at/hugo.git
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       ---
   DIR commit 07cbe5701e9c8c9b047386054d527e3275a9456c
   DIR parent c15ebce2fd9cf0427e89578389f298a83be95728
  HTML Author: Joe Mooring <joe.mooring@veriphor.com>
       Date:   Tue,  1 Apr 2025 11:37:22 -0700
       
       tpl/time: Add time.In function
       
       Closes #13548
       
       Diffstat:
         M tpl/time/init.go                    |       2 +-
         M tpl/time/time.go                    |      31 ++++++++++++++++++++++++++++++-
         M tpl/time/time_test.go               |     145 +++++++++++++++++++++++++-------
       
       3 files changed, 147 insertions(+), 31 deletions(-)
       ---
   DIR diff --git a/tpl/time/init.go b/tpl/time/init.go
       @@ -29,7 +29,7 @@ func init() {
                        if d.Conf.Language() == nil {
                                panic("Language must be set")
                        }
       -                ctx := New(langs.GetTimeFormatter(d.Conf.Language()), langs.GetLocation(d.Conf.Language()))
       +                ctx := New(langs.GetTimeFormatter(d.Conf.Language()), langs.GetLocation(d.Conf.Language()), d)
        
                        ns := &internal.TemplateFuncsNamespace{
                                Name: name,
   DIR diff --git a/tpl/time/time.go b/tpl/time/time.go
       @@ -18,16 +18,28 @@ import (
                "fmt"
                "time"
        
       +        "github.com/gohugoio/hugo/cache/dynacache"
                "github.com/gohugoio/hugo/common/htime"
       +        "github.com/gohugoio/hugo/deps"
        
                "github.com/spf13/cast"
        )
        
        // New returns a new instance of the time-namespaced template functions.
       -func New(timeFormatter htime.TimeFormatter, location *time.Location) *Namespace {
       +func New(timeFormatter htime.TimeFormatter, location *time.Location, deps *deps.Deps) *Namespace {
       +        if deps.MemCache == nil {
       +                panic("must provide MemCache")
       +        }
       +
                return &Namespace{
                        timeFormatter: timeFormatter,
                        location:      location,
       +                deps:          deps,
       +                cacheIn: dynacache.GetOrCreatePartition[string, *time.Location](
       +                        deps.MemCache,
       +                        "/tmpl/time/in",
       +                        dynacache.OptionsPartition{Weight: 30, ClearWhen: dynacache.ClearNever},
       +                ),
                }
        }
        
       @@ -35,6 +47,8 @@ func New(timeFormatter htime.TimeFormatter, location *time.Location) *Namespace 
        type Namespace struct {
                timeFormatter htime.TimeFormatter
                location      *time.Location
       +        deps          *deps.Deps
       +        cacheIn       *dynacache.Partition[string, *time.Location]
        }
        
        // AsTime converts the textual representation of the datetime string into
       @@ -71,6 +85,21 @@ func (ns *Namespace) Now() time.Time {
                return htime.Now()
        }
        
       +// In returns the time t in the IANA time zone specified by timeZoneName.
       +// If timeZoneName is "" or "UTC", the time is returned in UTC.
       +// If timeZoneName is "Local", the time is returned in the system's local time zone.
       +// Otherwise, timeZoneName must be a valid IANA location name (e.g., "Europe/Oslo").
       +func (ns *Namespace) In(timeZoneName string, t time.Time) (time.Time, error) {
       +        location, err := ns.cacheIn.GetOrCreate(dynacache.CleanKey(timeZoneName), func(string) (*time.Location, error) {
       +                return time.LoadLocation(timeZoneName)
       +        })
       +        if err != nil {
       +                return time.Time{}, err
       +        }
       +
       +        return t.In(location), nil
       +}
       +
        // ParseDuration parses the duration string s.
        // A duration string is a possibly signed sequence of
        // decimal numbers, each with optional fraction and a unit suffix,
   DIR diff --git a/tpl/time/time_test.go b/tpl/time/time_test.go
       @@ -11,24 +11,31 @@
        // See the License for the specific language governing permissions and
        // limitations under the License.
        
       -package time
       +package time_test
        
        import (
                "strings"
                "testing"
       -        "time"
       +        gtime "time"
        
                qt "github.com/frankban/quicktest"
        
                "github.com/gohugoio/hugo/common/htime"
       +        "github.com/gohugoio/hugo/hugolib"
       +        "github.com/gohugoio/hugo/tpl/time"
       +
                translators "github.com/gohugoio/localescompressed"
        )
        
        func TestTimeLocation(t *testing.T) {
                t.Parallel()
        
       -        loc, _ := time.LoadLocation("America/Antigua")
       -        ns := New(htime.NewTimeFormatter(translators.GetTranslator("en")), loc)
       +        b := hugolib.NewIntegrationTestBuilder(
       +                hugolib.IntegrationTestConfig{T: t},
       +        ).Build()
       +
       +        loc, _ := gtime.LoadLocation("America/Antigua")
       +        ns := time.New(htime.NewTimeFormatter(translators.GetTranslator("en")), loc, b.H.Deps)
        
                for i, test := range []struct {
                        name     string
       @@ -72,7 +79,7 @@ func TestTimeLocation(t *testing.T) {
                                        // See https://github.com/gohugoio/hugo/issues/8843#issuecomment-891551447
                                        // Drop the location string (last element) when comparing,
                                        // as that may change depending on the local locale.
       -                                timeStr := result.(time.Time).String()
       +                                timeStr := result.(gtime.Time).String()
                                        timeStr = timeStr[:strings.LastIndex(timeStr, " ")]
                                        if !strings.HasPrefix(test.expect.(string), timeStr) {
                                                t.Errorf("[%d] AsTime got %v but expected %v", i, timeStr, test.expect)
       @@ -85,9 +92,14 @@ func TestTimeLocation(t *testing.T) {
        func TestFormat(t *testing.T) {
                c := qt.New(t)
        
       +        b := hugolib.NewIntegrationTestBuilder(
       +                hugolib.IntegrationTestConfig{T: t},
       +        ).Build()
       +
                c.Run("UTC", func(c *qt.C) {
                        c.Parallel()
       -                ns := New(htime.NewTimeFormatter(translators.GetTranslator("en")), time.UTC)
       +
       +                ns := time.New(htime.NewTimeFormatter(translators.GetTranslator("en")), gtime.UTC, b.H.Deps)
        
                        for i, test := range []struct {
                                layout string
       @@ -95,15 +107,15 @@ func TestFormat(t *testing.T) {
                                expect any
                        }{
                                {"Monday, Jan 2, 2006", "2015-01-21", "Wednesday, Jan 21, 2015"},
       -                        {"Monday, Jan 2, 2006", time.Date(2015, time.January, 21, 0, 0, 0, 0, time.UTC), "Wednesday, Jan 21, 2015"},
       +                        {"Monday, Jan 2, 2006", gtime.Date(2015, gtime.January, 21, 0, 0, 0, 0, gtime.UTC), "Wednesday, Jan 21, 2015"},
                                {"This isn't a date layout string", "2015-01-21", "This isn't a date layout string"},
                                // The following test case gives either "Tuesday, Jan 20, 2015" or "Monday, Jan 19, 2015" depending on the local time zone
       -                        {"Monday, Jan 2, 2006", 1421733600, time.Unix(1421733600, 0).Format("Monday, Jan 2, 2006")},
       +                        {"Monday, Jan 2, 2006", 1421733600, gtime.Unix(1421733600, 0).Format("Monday, Jan 2, 2006")},
                                {"Monday, Jan 2, 2006", 1421733600.123, false},
       -                        {time.RFC3339, time.Date(2016, time.March, 3, 4, 5, 0, 0, time.UTC), "2016-03-03T04:05:00Z"},
       -                        {time.RFC1123, time.Date(2016, time.March, 3, 4, 5, 0, 0, time.UTC), "Thu, 03 Mar 2016 04:05:00 UTC"},
       -                        {time.RFC3339, "Thu, 03 Mar 2016 04:05:00 UTC", "2016-03-03T04:05:00Z"},
       -                        {time.RFC1123, "2016-03-03T04:05:00Z", "Thu, 03 Mar 2016 04:05:00 UTC"},
       +                        {gtime.RFC3339, gtime.Date(2016, gtime.March, 3, 4, 5, 0, 0, gtime.UTC), "2016-03-03T04:05:00Z"},
       +                        {gtime.RFC1123, gtime.Date(2016, gtime.March, 3, 4, 5, 0, 0, gtime.UTC), "Thu, 03 Mar 2016 04:05:00 UTC"},
       +                        {gtime.RFC3339, "Thu, 03 Mar 2016 04:05:00 UTC", "2016-03-03T04:05:00Z"},
       +                        {gtime.RFC1123, "2016-03-03T04:05:00Z", "Thu, 03 Mar 2016 04:05:00 UTC"},
                                // Custom layouts, as introduced in Hugo 0.87.
                                {":date_medium", "2015-01-21", "Jan 21, 2015"},
                        } {
       @@ -128,9 +140,9 @@ func TestFormat(t *testing.T) {
                c.Run("TZ America/Los_Angeles", func(c *qt.C) {
                        c.Parallel()
        
       -                loc, err := time.LoadLocation("America/Los_Angeles")
       +                loc, err := gtime.LoadLocation("America/Los_Angeles")
                        c.Assert(err, qt.IsNil)
       -                ns := New(htime.NewTimeFormatter(translators.GetTranslator("en")), loc)
       +                ns := time.New(htime.NewTimeFormatter(translators.GetTranslator("en")), loc, b.H.Deps)
        
                        d, err := ns.Format(":time_full", "2020-03-09T11:00:00")
        
       @@ -142,28 +154,32 @@ func TestFormat(t *testing.T) {
        func TestDuration(t *testing.T) {
                t.Parallel()
        
       -        ns := New(htime.NewTimeFormatter(translators.GetTranslator("en")), time.UTC)
       +        b := hugolib.NewIntegrationTestBuilder(
       +                hugolib.IntegrationTestConfig{T: t},
       +        ).Build()
       +
       +        ns := time.New(htime.NewTimeFormatter(translators.GetTranslator("en")), gtime.UTC, b.H.Deps)
        
                for i, test := range []struct {
                        unit   any
                        num    any
                        expect any
                }{
       -                {"nanosecond", 10, 10 * time.Nanosecond},
       -                {"ns", 10, 10 * time.Nanosecond},
       -                {"microsecond", 20, 20 * time.Microsecond},
       -                {"us", 20, 20 * time.Microsecond},
       -                {"µs", 20, 20 * time.Microsecond},
       -                {"millisecond", 20, 20 * time.Millisecond},
       -                {"ms", 20, 20 * time.Millisecond},
       -                {"second", 30, 30 * time.Second},
       -                {"s", 30, 30 * time.Second},
       -                {"minute", 20, 20 * time.Minute},
       -                {"m", 20, 20 * time.Minute},
       -                {"hour", 20, 20 * time.Hour},
       -                {"h", 20, 20 * time.Hour},
       +                {"nanosecond", 10, 10 * gtime.Nanosecond},
       +                {"ns", 10, 10 * gtime.Nanosecond},
       +                {"microsecond", 20, 20 * gtime.Microsecond},
       +                {"us", 20, 20 * gtime.Microsecond},
       +                {"µs", 20, 20 * gtime.Microsecond},
       +                {"millisecond", 20, 20 * gtime.Millisecond},
       +                {"ms", 20, 20 * gtime.Millisecond},
       +                {"second", 30, 30 * gtime.Second},
       +                {"s", 30, 30 * gtime.Second},
       +                {"minute", 20, 20 * gtime.Minute},
       +                {"m", 20, 20 * gtime.Minute},
       +                {"hour", 20, 20 * gtime.Hour},
       +                {"h", 20, 20 * gtime.Hour},
                        {"hours", 20, false},
       -                {"hour", "30", 30 * time.Hour},
       +                {"hour", "30", 30 * gtime.Hour},
                } {
                        result, err := ns.Duration(test.unit, test.num)
                        if b, ok := test.expect.(bool); ok && !b {
       @@ -181,3 +197,74 @@ func TestDuration(t *testing.T) {
                        }
                }
        }
       +
       +func TestIn(t *testing.T) {
       +        t.Parallel()
       +
       +        b := hugolib.NewIntegrationTestBuilder(
       +                hugolib.IntegrationTestConfig{T: t},
       +        ).Build()
       +
       +        ns := time.New(htime.NewTimeFormatter(translators.GetTranslator("en")), gtime.UTC, b.H.Deps)
       +
       +        in := gtime.Date(2025, gtime.March, 31, 15, 0, 0, 0, gtime.UTC)
       +
       +        tests := []struct {
       +                name    string
       +                tzn     string // time zone name
       +                want    string
       +                wantErr bool
       +        }{
       +                {name: "A", tzn: "America/Denver", want: "2025-03-31T09:00:00-06:00", wantErr: false},
       +                {name: "B", tzn: "Australia/Adelaide", want: "2025-04-01T01:30:00+10:30", wantErr: false},
       +                {name: "C", tzn: "Europe/Oslo", want: "2025-03-31T17:00:00+02:00", wantErr: false},
       +                {name: "D", tzn: "UTC", want: "2025-03-31T15:00:00+00:00", wantErr: false},
       +                {name: "E", tzn: "", want: "2025-03-31T15:00:00+00:00", wantErr: false},
       +                {name: "F", tzn: "InvalidTimeZoneName", want: "0001-01-01T00:00:00+00:00", wantErr: true},
       +        }
       +
       +        for _, tt := range tests {
       +                t.Run(tt.name, func(t *testing.T) {
       +                        result, err := ns.In(tt.tzn, in)
       +                        if (err != nil) != tt.wantErr {
       +                                t.Errorf("time.In() error = %v, wantErr %v", err, tt.wantErr)
       +                                return
       +                        }
       +                        got := result.Format("2006-01-02T15:04:05-07:00")
       +                        if got != tt.want {
       +                                t.Errorf("time.In() = %v, want %v", got, tt.want)
       +                        }
       +                })
       +        }
       +}
       +
       +// For benchmark tests below.
       +var timeZoneNames []string = []string{"America/New_York", "Europe/Oslo", "Australia/Sydney", "UTC", "Local"}
       +
       +func BenchmarkInWithCaching(b *testing.B) {
       +        bb := hugolib.NewIntegrationTestBuilder(
       +                hugolib.IntegrationTestConfig{T: b},
       +        ).Build()
       +
       +        ns := time.New(htime.NewTimeFormatter(translators.GetTranslator("en")), gtime.UTC, bb.H.Deps)
       +
       +        for i := 0; i < b.N; i++ {
       +                timeZoneName := timeZoneNames[i%len(timeZoneNames)]
       +                _, err := ns.In(timeZoneName, gtime.Now())
       +                if err != nil {
       +                        b.Fatalf("Error during benchmark: %v", err)
       +                }
       +        }
       +}
       +
       +func BenchmarkInWithoutCaching(b *testing.B) {
       +        for i := 0; i < b.N; i++ {
       +                timeZoneName := timeZoneNames[i%len(timeZoneNames)]
       +                location, err := gtime.LoadLocation(timeZoneName)
       +                if err != nil {
       +                        b.Fatalf("Error during benchmark: %v", err)
       +                }
       +
       +                _ = gtime.Now().In(location)
       +        }
       +}