Added lmza, added ci file

.drone.yml

@@ -0,0 +1,10 @@
+---
+kind: pipeline
+type: docker
+name: default
+
+steps:
+- name: digby
+  image: golang:1.13.8
+  commands:
+  - go build

go.mod

@@ -2,4 +2,7 @@ module digby
 
 go 1.13
 
-require github.com/DataDog/zstd v1.4.5 // indirect
+require (
+	github.com/DataDog/zstd v1.4.5
+	github.com/itchio/lzma v0.0.0-20190703113020-d3e24e3e3d49
+)

go.sum

@@ -1,2 +1,4 @@
 github.com/DataDog/zstd v1.4.5 h1:EndNeuB0l9syBZhut0wns3gV1hL8zX8LIu6ZiVHWLIQ=
 github.com/DataDog/zstd v1.4.5/go.mod h1:1jcaCB/ufaK+sKp1NBhlGmpz41jOoPQ35bpF36t7BBo=
+github.com/itchio/lzma v0.0.0-20190703113020-d3e24e3e3d49 h1:+YrBMf3rkLjkT10zIHyVE4S7ma4hqvfjl6XgnzZwS6o=
+github.com/itchio/lzma v0.0.0-20190703113020-d3e24e3e3d49/go.mod h1:avNrevQMli1pYPsz1+HIHMvx95pk6O+6otbWqCZPeZI=

main.go

@@ -1,5 +1,12 @@
 /*
 Digby: A multi-file copmressor
+
+There are some drawbacks to this application.
+1) You can't compress multiple files or a folder at this moment.
+2) It puts the files into memory, which is bad if the file you want to compress
+	is bigger than the memory you have.
+3) There's no support for using the `*` modifier for compressing all files in
+	working directory.
 */
 
 package main
@@ -14,7 +21,8 @@ import (
 	"os"
 
 	// Third-party packages
-	"github.com/DataDog/zstd"
+	"github.com/DataDog/zstd" // zstd support
+	"github.com/itchio/lzma" // lzma support
 )
 
 func main() {
@@ -56,6 +64,11 @@ func main() {
 		w := zstd.NewWriterLevel(f, *&lvl)
 		w.Write(data)
 		w.Close()
+	} else if *&comp == "lzma" {
+		f, _ = os.Create(*&path + *&file + ".lzma")
+		w := lzma.NewWriter(f)
+		w.Write(data)
+		w.Close()
 	}
 
 	fmt.Println("Successfully compressed ", *&file, " using ", *&comp)