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dups: deduplication tool

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Vincent Batts 2015-05-21 11:14:05 -04:00
parent 5cbe83545d
commit 4619d4d8b7
2 changed files with 43 additions and 4 deletions
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33
README.md
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@ -4,6 +4,39 @@ Random utilities of vbatts' being cleaned up, and published
# Commands
## dups
building a document of file checksum info, for a directory tree. Optionally
deduplicate the tree using hardlinks.
### Install
go get github.com/vbatts/freezing-octo-hipster/cmd/dups
### Usage
$ dups -h
Usage of dups:
-H=false: hardlink the duplicate files
-l="": load existing map from file
-q=false: less output
-s="hash-map.json": file to save map of file hashes to
By default it scans the paths provided, and creates a JSON document of the file paths and their checksum:
$ dups .
"/home/vbatts/src/vb/freezing-octo-hipster/.git/logs/refs/heads/master" is the same content as "/home/vbatts/src/vb/freezing-octo-hipster/.git/logs/HEAD"
"/home/vbatts/src/vb/freezing-octo-hipster/.git/refs/remotes/origin/master" is the same content as "/home/vbatts/src/vb/freezing-octo-hipster/.git/refs/heads/master"
"/home/vbatts/src/vb/freezing-octo-hipster/cmd/find-todos/main.go~" is the same content as "/home/vbatts/src/vb/freezing-octo-hipster/cmd/find-todos/main.go"
"/home/vbatts/src/vb/freezing-octo-hipster/cmd/slackware-sync/README.md~" is the same content as "/home/vbatts/src/vb/freezing-octo-hipster/cmd/slackware-sync/README.md"
"/home/vbatts/src/vb/freezing-octo-hipster/cmd/slackware-sync/main.go" is the same content as "/home/vbatts/src/vb/freezing-octo-hipster/cmd/slackware-sync/main.go~"
Savings of 0.005681mb
wrote "hash-map.json"
With the `-H` flag, as duplicate files are found (files with matching checksum)
are encountered, hardlink it to the duplicate file.
## next-note
Simple date formating for notes

14
cmd/slackware-sync/main.go
View file

@ -3,11 +3,12 @@ package main
import (
"flag"
"fmt"
"github.com/BurntSushi/toml"
"net/url"
"os"
"os/exec"
"path"
"github.com/BurntSushi/toml"
)
func main() {
@ -19,6 +20,10 @@ func main() {
os.Exit(1)
}
if len(*flSyncDir) > 0 {
config.SyncDir = *flSyncDir
}
_, err = EnsureDirExists(config.SyncDir)
if err != nil {
fmt.Println(err)
@ -47,10 +52,10 @@ func main() {
cmd.Stdout = os.Stdout
}
err = cmd.Run()
if err != nil {
err = cmd.Run()
if err != nil {
fmt.Fprintln(os.Stderr, err)
}
}
}
}
@ -82,6 +87,7 @@ type Mirror struct {
}
var (
flSyncDir = flag.String("dir", "", "directory to sync to (this flag overrides the url in the configuration file)")
flConfigFile = flag.String("c", path.Join(os.Getenv("HOME"), ".slackware-sync.toml"), "config file for the sync")
flQuiet = flag.Bool("q", false, "less output")
)