[archiver] Add support for building without Brotli compression, therefore obtaining a static archiver executable

scripts/z-run

@@ -129,7 +129,8 @@
 	exec -- "${ZRUN[@]}" ':: go / tool' \
 			build \
 			-v \
-			-ldflags 'all=-s' \
+			-tags 'netgo nobrotli' \
+			-ldflags 'all=-s -extld=gcc -extldflags=-static' \
 			-gcflags 'all=-l=4' \
 			-o "${_outputs}/binaries/release/kawipiko-archiver" \
 			-- ./cmd/archiver.go \

sources/lib/archiver/compress-brotli-with.go

@@ -0,0 +1,31 @@
+
+// +build !nobrotli
+
+
+package archiver
+
+
+import "bytes"
+
+import "github.com/google/brotli/go/cbrotli"
+
+
+
+
+func CompressBrotli (_data []byte) ([]byte, string, error) {
+	
+	_buffer := & bytes.Buffer {}
+	
+	_encoder := cbrotli.NewWriter (_buffer, cbrotli.WriterOptions { Quality : 11, LGWin : 24})
+	
+	if _, _error := _encoder.Write (_data); _error != nil {
+		return nil, "", _error
+	}
+	if _error := _encoder.Close (); _error != nil {
+		return nil, "", _error
+	}
+	
+	_data = _buffer.Bytes ()
+	return _data, "br", nil
+}
+

sources/lib/archiver/compress-brotli-without.go

@@ -0,0 +1,17 @@
+
+// +build nobrotli
+
+
+package archiver
+
+
+import "fmt"
+
+
+
+
+func CompressBrotli (_data []byte) ([]byte, string, error) {
+	
+	return nil, "", fmt.Errorf ("[9252cf70]  unsupported compression algorithm `%s`", "brotli")
+}
+

sources/lib/archiver/compress.go

@@ -7,8 +7,6 @@ import "bytes"
 import "compress/gzip"
 import "fmt"
 
-import "github.com/google/brotli/go/cbrotli"
-
 
 
 
@@ -50,21 +48,3 @@ func CompressGzip (_data []byte) ([]byte, string, error) {
 	return _data, "gzip", nil
 }
 
-
-func CompressBrotli (_data []byte) ([]byte, string, error) {
-	
-	_buffer := & bytes.Buffer {}
-	
-	_encoder := cbrotli.NewWriter (_buffer, cbrotli.WriterOptions { Quality : 11, LGWin : 24})
-	
-	if _, _error := _encoder.Write (_data); _error != nil {
-		return nil, "", _error
-	}
-	if _error := _encoder.Close (); _error != nil {
-		return nil, "", _error
-	}
-	
-	_data = _buffer.Bytes ()
-	return _data, "br", nil
-}
-