Use gitea forked macaron (#7933)

Signed-off-by: Tamal Saha <tamal@appscode.com>

vendor/github.com/go-macaron/cache/file.go

@@ -1,208 +0,0 @@
-// Copyright 2013 Beego Authors
-// Copyright 2014 The Macaron Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License"): you may
-// not use this file except in compliance with the License. You may obtain
-// a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-// License for the specific language governing permissions and limitations
-// under the License.
-
-package cache
-
-import (
-	"crypto/md5"
-	"encoding/hex"
-	"fmt"
-	"io/ioutil"
-	"log"
-	"os"
-	"path/filepath"
-	"sync"
-	"time"
-
-	"github.com/Unknwon/com"
-	"gopkg.in/macaron.v1"
-)
-
-// Item represents a cache item.
-type Item struct {
-	Val     interface{}
-	Created int64
-	Expire  int64
-}
-
-func (item *Item) hasExpired() bool {
-	return item.Expire > 0 &&
-		(time.Now().Unix()-item.Created) >= item.Expire
-}
-
-// FileCacher represents a file cache adapter implementation.
-type FileCacher struct {
-	lock     sync.Mutex
-	rootPath string
-	interval int // GC interval.
-}
-
-// NewFileCacher creates and returns a new file cacher.
-func NewFileCacher() *FileCacher {
-	return &FileCacher{}
-}
-
-func (c *FileCacher) filepath(key string) string {
-	m := md5.Sum([]byte(key))
-	hash := hex.EncodeToString(m[:])
-	return filepath.Join(c.rootPath, string(hash[0]), string(hash[1]), hash)
-}
-
-// Put puts value into cache with key and expire time.
-// If expired is 0, it will be deleted by next GC operation.
-func (c *FileCacher) Put(key string, val interface{}, expire int64) error {
-	filename := c.filepath(key)
-	item := &Item{val, time.Now().Unix(), expire}
-	data, err := EncodeGob(item)
-	if err != nil {
-		return err
-	}
-
-	os.MkdirAll(filepath.Dir(filename), os.ModePerm)
-	return ioutil.WriteFile(filename, data, os.ModePerm)
-}
-
-func (c *FileCacher) read(key string) (*Item, error) {
-	filename := c.filepath(key)
-
-	data, err := ioutil.ReadFile(filename)
-	if err != nil {
-		return nil, err
-	}
-
-	item := new(Item)
-	return item, DecodeGob(data, item)
-}
-
-// Get gets cached value by given key.
-func (c *FileCacher) Get(key string) interface{} {
-	item, err := c.read(key)
-	if err != nil {
-		return nil
-	}
-
-	if item.hasExpired() {
-		os.Remove(c.filepath(key))
-		return nil
-	}
-	return item.Val
-}
-
-// Delete deletes cached value by given key.
-func (c *FileCacher) Delete(key string) error {
-	return os.Remove(c.filepath(key))
-}
-
-// Incr increases cached int-type value by given key as a counter.
-func (c *FileCacher) Incr(key string) error {
-	item, err := c.read(key)
-	if err != nil {
-		return err
-	}
-
-	item.Val, err = Incr(item.Val)
-	if err != nil {
-		return err
-	}
-
-	return c.Put(key, item.Val, item.Expire)
-}
-
-// Decrease cached int value.
-func (c *FileCacher) Decr(key string) error {
-	item, err := c.read(key)
-	if err != nil {
-		return err
-	}
-
-	item.Val, err = Decr(item.Val)
-	if err != nil {
-		return err
-	}
-
-	return c.Put(key, item.Val, item.Expire)
-}
-
-// IsExist returns true if cached value exists.
-func (c *FileCacher) IsExist(key string) bool {
-	return com.IsExist(c.filepath(key))
-}
-
-// Flush deletes all cached data.
-func (c *FileCacher) Flush() error {
-	return os.RemoveAll(c.rootPath)
-}
-
-func (c *FileCacher) startGC() {
-	c.lock.Lock()
-	defer c.lock.Unlock()
-
-	if c.interval < 1 {
-		return
-	}
-
-	if err := filepath.Walk(c.rootPath, func(path string, fi os.FileInfo, err error) error {
-		if err != nil {
-			return fmt.Errorf("Walk: %v", err)
-		}
-
-		if fi.IsDir() {
-			return nil
-		}
-
-		data, err := ioutil.ReadFile(path)
-		if err != nil && !os.IsNotExist(err) {
-			fmt.Errorf("ReadFile: %v", err)
-		}
-
-		item := new(Item)
-		if err = DecodeGob(data, item); err != nil {
-			return err
-		}
-		if item.hasExpired() {
-			if err = os.Remove(path); err != nil && !os.IsNotExist(err) {
-				return fmt.Errorf("Remove: %v", err)
-			}
-		}
-		return nil
-	}); err != nil {
-		log.Printf("error garbage collecting cache files: %v", err)
-	}
-
-	time.AfterFunc(time.Duration(c.interval)*time.Second, func() { c.startGC() })
-}
-
-// StartAndGC starts GC routine based on config string settings.
-func (c *FileCacher) StartAndGC(opt Options) error {
-	c.lock.Lock()
-	c.rootPath = opt.AdapterConfig
-	c.interval = opt.Interval
-
-	if !filepath.IsAbs(c.rootPath) {
-		c.rootPath = filepath.Join(macaron.Root, c.rootPath)
-	}
-	c.lock.Unlock()
-
-	if err := os.MkdirAll(c.rootPath, os.ModePerm); err != nil {
-		return err
-	}
-
-	go c.startGC()
-	return nil
-}
-
-func init() {
-	Register("file", NewFileCacher())
-}