modules/base: move file-related functions to file.go

modules/base/file.go

@@ -0,0 +1,77 @@
+// Copyright 2017 The Gogs Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package base
+
+import (
+	"fmt"
+	"math"
+	"net/http"
+	"strings"
+)
+
+// IsTextFile returns true if file content format is plain text or empty.
+func IsTextFile(data []byte) bool {
+	if len(data) == 0 {
+		return true
+	}
+	return strings.Contains(http.DetectContentType(data), "text/")
+}
+
+func IsImageFile(data []byte) bool {
+	return strings.Contains(http.DetectContentType(data), "image/")
+}
+
+func IsPDFFile(data []byte) bool {
+	return strings.Contains(http.DetectContentType(data), "application/pdf")
+}
+
+func IsVideoFile(data []byte) bool {
+	return strings.Contains(http.DetectContentType(data), "video/")
+}
+
+const (
+	Byte  = 1
+	KByte = Byte * 1024
+	MByte = KByte * 1024
+	GByte = MByte * 1024
+	TByte = GByte * 1024
+	PByte = TByte * 1024
+	EByte = PByte * 1024
+)
+
+var bytesSizeTable = map[string]uint64{
+	"b":  Byte,
+	"kb": KByte,
+	"mb": MByte,
+	"gb": GByte,
+	"tb": TByte,
+	"pb": PByte,
+	"eb": EByte,
+}
+
+func logn(n, b float64) float64 {
+	return math.Log(n) / math.Log(b)
+}
+
+func humanateBytes(s uint64, base float64, sizes []string) string {
+	if s < 10 {
+		return fmt.Sprintf("%d B", s)
+	}
+	e := math.Floor(logn(float64(s), base))
+	suffix := sizes[int(e)]
+	val := float64(s) / math.Pow(base, math.Floor(e))
+	f := "%.0f"
+	if val < 10 {
+		f = "%.1f"
+	}
+
+	return fmt.Sprintf(f+" %s", val, suffix)
+}
+
+// FileSize calculates the file size and generate user-friendly string.
+func FileSize(s int64) string {
+	sizes := []string{"B", "KB", "MB", "GB", "TB", "PB", "EB"}
+	return humanateBytes(uint64(s), 1024, sizes)
+}

modules/base/tool.go

@@ -12,9 +12,7 @@ import (
 	"encoding/hex"
 	"fmt"
 	"html/template"
-	"math"
 	"math/big"
-	"net/http"
 	"strings"
 	"time"
 	"unicode"
@@ -346,51 +344,6 @@ func TimeSince(t time.Time, lang string) template.HTML {
 	return template.HTML(fmt.Sprintf(`<span class="time-since" title="%s">%s</span>`, t.Format(setting.TimeFormat), timeSince(t, lang)))
 }
 
-const (
-	Byte  = 1
-	KByte = Byte * 1024
-	MByte = KByte * 1024
-	GByte = MByte * 1024
-	TByte = GByte * 1024
-	PByte = TByte * 1024
-	EByte = PByte * 1024
-)
-
-var bytesSizeTable = map[string]uint64{
-	"b":  Byte,
-	"kb": KByte,
-	"mb": MByte,
-	"gb": GByte,
-	"tb": TByte,
-	"pb": PByte,
-	"eb": EByte,
-}
-
-func logn(n, b float64) float64 {
-	return math.Log(n) / math.Log(b)
-}
-
-func humanateBytes(s uint64, base float64, sizes []string) string {
-	if s < 10 {
-		return fmt.Sprintf("%d B", s)
-	}
-	e := math.Floor(logn(float64(s), base))
-	suffix := sizes[int(e)]
-	val := float64(s) / math.Pow(base, math.Floor(e))
-	f := "%.0f"
-	if val < 10 {
-		f = "%.1f"
-	}
-
-	return fmt.Sprintf(f+" %s", val, suffix)
-}
-
-// FileSize calculates the file size and generate user-friendly string.
-func FileSize(s int64) string {
-	sizes := []string{"B", "KB", "MB", "GB", "TB", "PB", "EB"}
-	return humanateBytes(uint64(s), 1024, sizes)
-}
-
 // Subtract deals with subtraction of all types of number.
 func Subtract(left interface{}, right interface{}) interface{} {
 	var rleft, rright int64
@@ -491,23 +444,3 @@ func Int64sToMap(ints []int64) map[int64]bool {
 func IsLetter(ch rune) bool {
 	return 'a' <= ch && ch <= 'z' || 'A' <= ch && ch <= 'Z' || ch == '_' || ch >= 0x80 && unicode.IsLetter(ch)
 }
-
-// IsTextFile returns true if file content format is plain text or empty.
-func IsTextFile(data []byte) bool {
-	if len(data) == 0 {
-		return true
-	}
-	return strings.Index(http.DetectContentType(data), "text/") != -1
-}
-
-func IsImageFile(data []byte) bool {
-	return strings.Index(http.DetectContentType(data), "image/") != -1
-}
-
-func IsPDFFile(data []byte) bool {
-	return strings.Index(http.DetectContentType(data), "application/pdf") != -1
-}
-
-func IsVideoFile(data []byte) bool {
-	return strings.Index(http.DetectContentType(data), "video/") != -1
-}