Create shfs project

README.md

@@ -0,0 +1,7 @@
+# shfs
+
+Sync Hash File System - allows syncing between devices and storing large files as references keyed by the file hash.
+
+Mount on linux:
+
+`mount -o port=<n>,mountport=<n>,nfsvers=3,noacl,tcp -t nfs localhost:/mount <mountpoint>`

go.mod

@@ -0,0 +1,15 @@
+module github.com/1f349/shfs
+
+go 1.21.1
+
+require (
+	github.com/go-git/go-billy/v5 v5.5.0
+	github.com/willscott/go-nfs v0.0.0-20230907145631-41b369691e46
+)
+
+require (
+	github.com/google/uuid v1.3.1 // indirect
+	github.com/hashicorp/golang-lru/v2 v2.0.5 // indirect
+	github.com/rasky/go-xdr v0.0.0-20170124162913-1a41d1a06c93 // indirect
+	github.com/willscott/go-nfs-client v0.0.0-20200605172546-271fa9065b33 // indirect
+)

go.sum

@@ -0,0 +1,21 @@
+github.com/go-git/go-billy/v5 v5.5.0 h1:yEY4yhzCDuMGSv83oGxiBotRzhwhNr8VZyphhiu+mTU=
+github.com/go-git/go-billy/v5 v5.5.0/go.mod h1:hmexnoNsr2SJU1Ju67OaNz5ASJY3+sHgFRpCtpDCKow=
+github.com/google/uuid v1.3.1 h1:KjJaJ9iWZ3jOFZIf1Lqf4laDRCasjl0BCmnEGxkdLb4=
+github.com/google/uuid v1.3.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/hashicorp/golang-lru/v2 v2.0.5 h1:wW7h1TG88eUIJ2i69gaE3uNVtEPIagzhGvHgwfx2Vm4=
+github.com/hashicorp/golang-lru/v2 v2.0.5/go.mod h1:QeFd9opnmA6QUJc5vARoKUSoFhyfM2/ZepoAG6RGpeM=
+github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
+github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
+github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
+github.com/rasky/go-xdr v0.0.0-20170124162913-1a41d1a06c93 h1:UVArwN/wkKjMVhh2EQGC0tEc1+FqiLlvYXY5mQ2f8Wg=
+github.com/rasky/go-xdr v0.0.0-20170124162913-1a41d1a06c93/go.mod h1:Nfe4efndBz4TibWycNE+lqyJZiMX4ycx+QKV8Ta0f/o=
+github.com/rogpeppe/go-internal v1.11.0 h1:cWPaGQEPrBb5/AsnsZesgZZ9yb1OQ+GOISoDNXVBh4M=
+github.com/rogpeppe/go-internal v1.11.0/go.mod h1:ddIwULY96R17DhadqLgMfk9H9tvdUzkipdSkR5nkCZA=
+github.com/willscott/go-nfs v0.0.0-20230907145631-41b369691e46 h1:9dp+1bZsWG82VUuGeMPIT5JWzWpenWF9eSe2/N/dbCA=
+github.com/willscott/go-nfs v0.0.0-20230907145631-41b369691e46/go.mod h1:1PiZswSlNu7GfHMWekF6rF1I94c8E0p+Cwbz7px1D14=
+github.com/willscott/go-nfs-client v0.0.0-20200605172546-271fa9065b33 h1:Wd8wdpRzPXskyHvZLyw7Wc1fp5oCE2mhBCj7bAiibUs=
+github.com/willscott/go-nfs-client v0.0.0-20200605172546-271fa9065b33/go.mod h1:cOUKSNty+RabZqKhm5yTJT5Vq/Fe83ZRWAJ5Kj8nRes=
+github.com/zema1/go-nfs-client v0.0.0-20200604081958-0cf942f0e0fe/go.mod h1:im3CVJ32XM3+E+2RhY0sa5IVJVQehUrX0oE1wX4xOwU=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=

main.go

@@ -0,0 +1,34 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"net"
+
+	"github.com/go-git/go-billy/v5/memfs"
+	nfs "github.com/willscott/go-nfs"
+	nfshelper "github.com/willscott/go-nfs/helpers"
+)
+
+func main() {
+	listener, err := net.Listen("tcp", ":0")
+	panicOnErr(err, "starting TCP listener")
+	fmt.Printf("Server running at %s\n", listener.Addr())
+	mem := memfs.New()
+	f, err := mem.Create("hello.txt")
+	panicOnErr(err, "creating file")
+	_, err = f.Write([]byte("hello world"))
+	panicOnErr(err, "writing data")
+	f.Close()
+	handler := nfshelper.NewNullAuthHandler(mem)
+	cacheHelper := nfshelper.NewCachingHandler(handler, 1)
+	panicOnErr(nfs.Serve(listener, cacheHelper), "serving nfs")
+}
+
+func panicOnErr(err error, desc ...interface{}) {
+	if err == nil {
+		return
+	}
+	log.Println(desc...)
+	log.Panicln(err)
+}