initial commit

build.nix

@@ -0,0 +1,12 @@
+{
+  pkgs ? import <nixpkgs> { },
+}:
+
+pkgs.buildGoModule {
+  name = "leveldb-cli";
+  version = "1.0.0";
+
+  src = ./.;
+
+  vendorHash = "sha256-b25hlPQft9iKyIw6E9jtORBgoLPnNa4+Z5QoeFoayfc=";
+}

go.mod

@@ -0,0 +1,8 @@
+module example.com/m/v2
+
+go 1.24.10
+
+require (
+	github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db // indirect
+	github.com/syndtr/goleveldb v1.0.0 // indirect
+)

go.sum

@@ -0,0 +1,18 @@
+github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
+github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db h1:woRePGFeVFfLKN/pOkfl+p/TAqKOfFu+7KPlMVpok/w=
+github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
+github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
+github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
+github.com/onsi/ginkgo v1.7.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
+github.com/onsi/gomega v1.4.3/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
+github.com/syndtr/goleveldb v1.0.0 h1:fBdIW9lB4Iz0n9khmH8w27SJ3QEJ7+IgjPEwGSZiFdE=
+github.com/syndtr/goleveldb v1.0.0/go.mod h1:ZVVdQEZoIme9iO1Ch2Jdy24qqXrMMOU6lpPAyBWyWuQ=
+golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
+gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
+gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

src/leveldb/main.go

@@ -0,0 +1,54 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/syndtr/goleveldb/leveldb"
+	"github.com/syndtr/goleveldb/leveldb/opt"
+	"github.com/syndtr/goleveldb/leveldb/storage"
+)
+
+func main() {
+	stderr := os.Stderr
+
+	args := os.Args[1:]
+	if len(args) < 4 {
+		fmt.Fprintf(stderr, "USAGE: %s PATH ORIGIN KEY VALUE\n", os.Args[0])
+		os.Exit(1)
+		return
+	}
+
+	path, origin, key, value := args[0], args[1], args[2], args[3]
+
+	dir, err := storage.OpenFile(path, false)
+	if err != nil {
+		fmt.Fprintln(stderr, "error:", err)
+		os.Exit(1)
+		return
+	}
+
+	db, err := leveldb.Open(dir, &opt.Options{ErrorIfMissing: false})
+	if err != nil {
+		fmt.Fprintln(stderr, "error:", err)
+		os.Exit(1)
+		return
+	}
+
+	defer db.Close()
+
+	dbKey := append([]byte{0x5F}, []byte(origin)...)
+	dbKey = append(dbKey, byte(0x00), byte(0x01))
+	dbKey = append(dbKey, []byte(key)...)
+
+	dbValue := append([]byte{0x01}, []byte(value)...)
+
+	err = db.Put(dbKey, dbValue, &opt.WriteOptions{Sync: true})
+	if err != nil {
+		fmt.Fprintln(stderr, "error:", err)
+		os.Exit(1)
+		return
+	}
+
+	os.Exit(0)
+}