1 files changed, 146 insertions, 0 deletions
diff --git a/v_windows/v/cmd/tools/vbin2v.v b/v_windows/v/cmd/tools/vbin2v.v
new file mode 100644
index 0000000..c1ab6e0
--- /dev/null
+++ b/v_windows/v/cmd/tools/vbin2v.v
@@ -0,0 +1,146 @@
+module main
+
+import os
+import flag
+import strings
+
+const (
+	tool_version     = '0.0.4'
+	tool_description = 'Converts a list of arbitrary files into a single v module file.'
+)
+
+struct Context {
+mut:
+	files       []string
+	prefix      string
+	show_help   bool
+	module_name string
+	write_file  string
+}
+
+fn (context Context) header() string {
+	mut header_s := ''
+	header_s += 'module $context.module_name\n'
+	header_s += '\n'
+	allfiles := context.files.join(' ')
+	mut options := []string{}
+	if context.prefix.len > 0 {
+		options << '-p $context.prefix'
+	}
+	if context.module_name.len > 0 {
+		options << '-m $context.module_name'
+	}
+	if context.write_file.len > 0 {
+		options << '-w $context.write_file'
+	}
+	soptions := options.join(' ')
+	header_s += '// File generated by:\n'
+	header_s += '// v bin2v $allfiles $soptions\n'
+	header_s += '// Please, do not edit this file.\n'
+	header_s += '// Your changes may be overwritten.\n'
+	header_s += 'const (\n'
+	return header_s
+}
+
+fn (context Context) footer() string {
+	return ')\n'
+}
+
+fn (context Context) file2v(bname string, fbytes []byte, bn_max int) string {
+	mut sb := strings.new_builder(1000)
+	bn_diff_len := bn_max - bname.len
+	sb.write_string('\t${bname}_len' + ' '.repeat(bn_diff_len - 4) + ' = $fbytes.len\n')
+	fbyte := fbytes[0]
+	bnmae_line := '\t$bname' + ' '.repeat(bn_diff_len) + ' = [byte($fbyte), '
+	sb.write_string(bnmae_line)
+	mut line_len := bnmae_line.len + 3
+	for i := 1; i < fbytes.len; i++ {
+		b := int(fbytes[i]).str()
+		if line_len > 94 {
+			sb.go_back(1)
+			sb.write_string('\n\t\t')
+			line_len = 8
+		}
+		if i == fbytes.len - 1 {
+			sb.write_string(b)
+			line_len += b.len
+		} else {
+			sb.write_string('$b, ')
+			line_len += b.len + 2
+		}
+	}
+	sb.write_string(']!\n')
+	return sb.str()
+}
+
+fn (context Context) bname_and_bytes(file string) ?(string, []byte) {
+	fname := os.file_name(file)
+	fname_escaped := fname.replace_each(['.', '_', '-', '_'])
+	byte_name := '$context.prefix$fname_escaped'.to_lower()
+	fbytes := os.read_bytes(file) or { return error('Error: $err.msg') }
+	return byte_name, fbytes
+}
+
+fn (context Context) max_bname_len(bnames []string) int {
+	mut max := 0
+	for n in bnames {
+		if n.len > max {
+			max = n.len
+		}
+	}
+	// Add 4 to max due to "_len" suffix
+	return max + 4
+}
+
+fn main() {
+	mut context := Context{}
+	mut fp := flag.new_flag_parser(os.args[1..])
+	fp.application('v bin2v')
+	fp.version(tool_version)
+	fp.description(tool_description)
+	fp.arguments_description('FILE [FILE]...')
+	context.show_help = fp.bool('help', `h`, false, 'Show this help screen.')
+	context.module_name = fp.string('module', `m`, 'binary', 'Name of the generated module.')
+	context.prefix = fp.string('prefix', `p`, '', 'A prefix put before each resource name.')
+	context.write_file = fp.string('write', `w`, '', 'Write directly to a file with the given name.')
+	if context.show_help {
+		println(fp.usage())
+		exit(0)
+	}
+	files := fp.finalize() or {
+		eprintln('Error: $err.msg')
+		exit(1)
+	}
+	real_files := files.filter(it != 'bin2v')
+	if real_files.len == 0 {
+		println(fp.usage())
+		exit(0)
+	}
+	context.files = real_files
+	if context.write_file != '' && os.file_ext(context.write_file) !in ['.vv', '.v'] {
+		context.write_file += '.v'
+	}
+	mut file_byte_map := map[string][]byte{}
+	for file in real_files {
+		bname, fbytes := context.bname_and_bytes(file) or {
+			eprintln(err.msg)
+			exit(1)
+		}
+		file_byte_map[bname] = fbytes
+	}
+	max_bname := context.max_bname_len(file_byte_map.keys())
+	if context.write_file.len > 0 {
+		mut out_file := os.create(context.write_file) ?
+		out_file.write_string(context.header()) ?
+		for bname, fbytes in file_byte_map {
+			out_file.write_string(context.file2v(bname, fbytes, max_bname)) ?
+		}
+		out_file.write_string(context.footer()) ?
+	} else {
+		print(context.header())
+		for bname, fbytes in file_byte_map {
+			print(context.file2v(bname, fbytes, max_bname))
+		}
+		print(context.footer())
+	}
+}