calmh

jb@syno:~/src/github.com/syncthing/syncthing git:(master) $ git checkout syncthing/pr/2375
Note: checking out 'syncthing/pr/2375'.

You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
state without impacting any branches by performing another checkout.

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:

calmh

jb@syno:~/src/github.com/AudriusButkevicius/gohashcompare git:(master 1↑) 1M 7A $ go run main.go 
Build: go1.5.1 darwin-amd64
testing: warning: no tests to run
PASS
SHA256-8     	    5000	    731164 ns/op	 179.26 MB/s	      32 B/op	       1 allocs/op
SHAKE256-8   	    5000	    598993 ns/op	 218.82 MB/s	      64 B/op	       1 allocs/op
FNV64-8      	   10000	    213811 ns/op	 613.03 MB/s	      16 B/op	       1 allocs/op
murmur3-128-8	  100000	     30360 ns/op	4317.24 MB/s	      16 B/op	       1 allocs/op
jb@syno:~/src/github.com/AudriusButkevicius/gohashcompare git:(master 1↑) 1M 7A $ 

calmh

jb@syno:~/src/github.com/AudriusButkevicius/gohashcompare git:(master 1↑) 7A $ go run main.go 
Build: go1.5.1 darwin-amd64
testing: warning: no tests to run
PASS
SHA256-8  	    3000	    741730 ns/op	 176.71 MB/s	      32 B/op	       1 allocs/op
SHAKE256-8	    5000	    592125 ns/op	 221.36 MB/s	      64 B/op	       1 allocs/op
FNV-8     	   10000	    217857 ns/op	 601.64 MB/s	      16 B/op	       1 allocs/op
jb@syno:~/src/github.com/AudriusButkevicius/gohashcompare git:(master 1↑) 1M 7A $ 

calmh

package main

import (
	"fmt"
	"time"

	"github.com/thejerf/suture"
)

func main() {

calmh

reporting-disabled = false

[meta]
  dir = "/var/opt/influxdb/meta"
  hostname = "localhost"
  bind-address = ":8088"
  retention-autocreate = true
  election-timeout = "1s"
  heartbeat-timeout = "1s"
  leader-lease-timeout = "500ms"

calmh

package dbtest

import (
	"database/sql"
	"fmt"
	"os"
	"sync"
	"testing"
	"time"

calmh

// Copyright 2014 The DST Authors. All rights reserved.
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.

package main

import (
	"crypto/rand"
	"flag"
	"io"

calmh

jb@syno:/usr/local/go1.5/src ((detached) $ ./all.bash 
##### Building Go bootstrap tool.
cmd/dist

##### Building Go toolchain using /usr/local/go1.4.2/.
bootstrap/internal/obj
bootstrap/asm/internal/flags
bootstrap/compile/internal/big
bootstrap/internal/gcprog
bootstrap/internal/obj/arm

calmh

Problem

We do two pass scanning to figure out our local contents;

1. Walk the folder. For each file check if it's already in the database and is a match, otherwise hash it and add to the database. Database is indexes by file name.

2. Iterate over the database, issuing an os.Lstat() for each item in it. If we get back an error, note the file as deleted.

This breaks when a file is renamed case-only on a case insensitive file system. In step one we find it as a new file, since the database is case

calmh

package db

import (
	"os"
	"testing"

	"github.com/boltdb/bolt"
)

func TestBoltTransactions(t *testing.T) {