all: stop using src/ dir, make tests reproducible, fix CI

embedfs.v

@@ -0,0 +1,122 @@
+module embedfs
+
+import os
+import strings
+import net.http.mime
+
+pub struct CodeGenerator {
+pub:
+	// Path to file or directory to embed
+	path string @[required]
+	// Path prefix if you want to add extra prefix for file paths
+	prefix string
+	// Glob patterns to match files the must be ignored when generating the code
+	ignore_patterns []string
+	// If true set the default MIME-type for files if no MIME-type detected
+	force_mimetype bool
+	// Default MIME-type for files. See https://www.iana.org/assignments/media-types/media-types.xhtml
+	default_mimetype string = 'application/octet-stream'
+	// Name of generated module
+	module_name string = 'main'
+	// Name of constant which will contain embedded files
+	const_name string = 'embedfs'
+	// If true make constant public
+	make_const_pub bool
+	// If true make all symbols in generated module public
+	make_pub bool
+	// Generate map[string]EmbedFile instead of EmbedFileSystem instance
+	bare_map bool
+}
+
+struct EmbedFileSpec {
+	key      string
+	path     string
+	name     string
+	ext      string
+	mimetype string
+}
+
+pub fn (g CodeGenerator) generate() string {
+	visible := if g.make_pub == true { 'pub ' } else { '' }
+	const_visible := if g.make_pub == true || g.make_const_pub == true { 'pub ' } else { '' }
+	mut b := strings.new_builder(1024 * 4)
+	b.writeln('// !WARNING! This file is generated by embedfs module, do not edit it.')
+	b.writeln('')
+	b.writeln('module ${g.module_name}')
+	b.writeln('')
+	b.writeln('import v.embed_file { EmbedFileData }')
+	b.writeln('')
+	b.writeln('${visible}struct EmbedFileMetadata {')
+	b.writeln('\tkey      string')
+	b.writeln('\tname     string')
+	b.writeln('\text      string')
+	b.writeln('\tmimetype string')
+	b.writeln('}')
+	b.writeln('')
+	b.writeln('${visible}struct EmbedFile {')
+	b.writeln('\tdata EmbedFileData')
+	b.writeln('\tmeta EmbedFileMetadata')
+	b.writeln('}')
+	b.writeln('')
+	b.writeln('${visible}struct EmbedFileSystem {')
+	b.writeln('\tfiles map[string]EmbedFile')
+	b.writeln('}')
+	b.writeln('')
+	if g.bare_map {
+		b.writeln('${const_visible}const ${g.const_name} = {')
+		g.write_embed_file_map_item(mut b)
+		b.writeln('}')
+	} else {
+		b.writeln('${const_visible}const ${g.const_name} = EmbedFileSystem{')
+		b.writeln('\tfiles: {')
+		g.write_embed_file_map_item(mut b)
+		b.writeln('\t}')
+		b.writeln('}')
+	}
+	return b.str()
+}
+
+fn (g CodeGenerator) get_files() []EmbedFileSpec {
+	mut file_list := &[]string{}
+	os.walk(g.path, fn [mut file_list] (file string) {
+		file_list << file
+	})
+	mut files := []EmbedFileSpec{}
+	outer: for file in file_list {
+		for glob in g.ignore_patterns {
+			if file.match_glob(glob) {
+				continue outer
+			}
+		}
+		file_key := os.join_path_single(g.prefix, file)
+		file_path := file // the actual path used in $embed_file() statement
+		file_name := os.file_name(file_path)
+		file_ext := os.file_ext(file_name).replace_once('.', '')
+		mut mimetype := mime.get_mime_type(file_ext)
+		if g.force_mimetype && mimetype == '' {
+			mimetype = g.default_mimetype
+		}
+		files << EmbedFileSpec{
+			key:      file_key
+			path:     file_path
+			name:     file_name
+			ext:      file_ext
+			mimetype: mimetype
+		}
+	}
+	return files
+}
+
+fn (g CodeGenerator) write_embed_file_map_item(mut b strings.Builder) {
+	for filespec in g.get_files() {
+		b.writeln("\t\t'${filespec.key}': EmbedFile{")
+		b.writeln("\t\t\tdata: \$embed_file('${filespec.path}')")
+		b.writeln('\t\t\tmeta: EmbedFileMetadata{')
+		b.writeln("\t\t\t\tkey: '${filespec.key}'")
+		b.writeln("\t\t\t\tname: '${filespec.name}'")
+		b.writeln("\t\t\t\text: '${filespec.ext}'")
+		b.writeln("\t\t\t\tmimetype: '${filespec.mimetype}'")
+		b.writeln('\t\t\t}')
+		b.writeln('\t\t},')
+	}
+}