First commit

server/template/helper/LICENSE

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+The MIT License (MIT)
+
+Copyright (c) 2017 Hervé GOUCHET
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

server/template/helper/elapsed.go

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+// Copyright (c) 2017 Hervé Gouchet. All rights reserved.
+// Use of this source code is governed by the MIT License
+// that can be found in the LICENSE file.
+
+package helper
+
+import (
+	"github.com/miniflux/miniflux2/locale"
+	"math"
+	"time"
+)
+
+// Texts to be translated if necessary.
+var (
+	NotYet     = `not yet`
+	JustNow    = `just now`
+	LastMinute = `1 minute ago`
+	Minutes    = `%d minutes ago`
+	LastHour   = `1 hour ago`
+	Hours      = `%d hours ago`
+	Yesterday  = `yesterday`
+	Days       = `%d days ago`
+	Weeks      = `%d weeks ago`
+	Months     = `%d months ago`
+	Years      = `%d years ago`
+)
+
+// GetElapsedTime returns in a human readable format the elapsed time
+// since the given datetime.
+func GetElapsedTime(translator *locale.Language, t time.Time) string {
+	if t.IsZero() || time.Now().Before(t) {
+		return translator.Get(NotYet)
+	}
+	diff := time.Since(t)
+	// Duration in seconds
+	s := diff.Seconds()
+	// Duration in days
+	d := int(s / 86400)
+	switch {
+	case s < 60:
+		return translator.Get(JustNow)
+	case s < 120:
+		return translator.Get(LastMinute)
+	case s < 3600:
+		return translator.Get(Minutes, int(diff.Minutes()))
+	case s < 7200:
+		return translator.Get(LastHour)
+	case s < 86400:
+		return translator.Get(Hours, int(diff.Hours()))
+	case d == 1:
+		return translator.Get(Yesterday)
+	case d < 7:
+		return translator.Get(Days, d)
+	case d < 31:
+		return translator.Get(Weeks, int(math.Ceil(float64(d)/7)))
+	case d < 365:
+		return translator.Get(Months, int(math.Ceil(float64(d)/30)))
+	default:
+		return translator.Get(Years, int(math.Ceil(float64(d)/365)))
+	}
+}

server/template/helper/elapsed_test.go

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+// Copyright (c) 2017 Hervé Gouchet. All rights reserved.
+// Use of this source code is governed by the MIT License
+// that can be found in the LICENSE file.
+
+package helper
+
+import (
+	"fmt"
+	"github.com/miniflux/miniflux2/locale"
+	"testing"
+	"time"
+)
+
+func TestElapsedTime(t *testing.T) {
+	var dt = []struct {
+		in  time.Time
+		out string
+	}{
+		{time.Time{}, NotYet},
+		{time.Now().Add(time.Hour), NotYet},
+		{time.Now(), JustNow},
+		{time.Now().Add(-time.Minute), LastMinute},
+		{time.Now().Add(-time.Minute * 40), fmt.Sprintf(Minutes, 40)},
+		{time.Now().Add(-time.Hour), LastHour},
+		{time.Now().Add(-time.Hour * 3), fmt.Sprintf(Hours, 3)},
+		{time.Now().Add(-time.Hour * 32), Yesterday},
+		{time.Now().Add(-time.Hour * 24 * 3), fmt.Sprintf(Days, 3)},
+		{time.Now().Add(-time.Hour * 24 * 14), fmt.Sprintf(Weeks, 2)},
+		{time.Now().Add(-time.Hour * 24 * 60), fmt.Sprintf(Months, 2)},
+		{time.Now().Add(-time.Hour * 24 * 365 * 3), fmt.Sprintf(Years, 3)},
+	}
+	for i, tt := range dt {
+		if out := GetElapsedTime(&locale.Language{}, tt.in); out != tt.out {
+			t.Errorf("%d. content mismatch for %v:exp=%q got=%q", i, tt.in, tt.out, out)
+		}
+	}
+}