fix(build): fix process binary files

Author: allen-zh

packages/mars-build/package.json

@@ -19,6 +19,7 @@
         "gulp": "^4.0.2",
         "gulp-changed": "^3.2.0",
         "gulp-intercept": "^0.1.0",
+        "gulp-is-binary": "^0.1.2",
         "gulp-util": "^3.0.8",
         "less": "^3.9.0",
         "lodash.merge": "^4.6.1",

packages/mars-build/src/compiler/file/base.js

@@ -46,13 +46,26 @@ function getExtProcessors(processors, lang) {
     return ret;
 }
 
+function defaultCompile(bufferOrString) {
+    return { code: bufferOrString };
+}
+
+function getFileSource(file) {
+    return file.isBinary && file.isBinary()
+        ? file.contents
+        : file.contents
+            ? file.contents.toString()
+            : '';
+}
+
 function getFileCompiler(compile, config) {
     const {preprocessors = {}, postprocessors = {}} = config;
+    compile = compile || defaultCompile;
 
     return async function fileCompiler(file, options) {
         const fileOptions = file.$options;
         const lang = file.lang || file.type;
-        let source = (file.contents && file.contents.toString()) || '';
+        let source = getFileSource(file);
         // preprocessors
         source = await process(source, getExtProcessors(preprocessors, lang), file);
         // compile
@@ -63,7 +76,10 @@ function getFileCompiler(compile, config) {
         let {code, ...rest} = result;
         code = await process(code, getExtProcessors(postprocessors, lang), file);
         // overwrite file contents
-        file.contents = Buffer.from(code || '');
+        file.contents = typeof code === 'string'
+            ? Buffer.from(code || '')
+            : code;
+
         return rest;
     };
 }

packages/mars-build/src/compiler/file/compiler.js

@@ -76,12 +76,6 @@ async function compileJS(content, options) {
     return res;
 }
 
-function compileDefault(code, options) {
-    return {
-        code
-    };
-}
-
 async function compile(file, options) {
     const {fileSuffix, target} = options;
     const buildConfig = options._config || {};
@@ -104,7 +98,7 @@ async function compile(file, options) {
     }
     else {
         // for other files, use default compiler
-        const compiler = getFileCompiler(compileDefault, buildConfig);
+        const compiler = getFileCompiler(null, buildConfig);
         await compiler(file, options);
     }
 

packages/mars-build/src/scripts/gulpTasks.js

@@ -96,6 +96,7 @@ function getTaskSFC(config, options) {
  * @return {Function}
  */
 function getTaskCompileAssets(config, options) {
+    const isBinary = require('gulp-is-binary');
     const {source} = config;
     const {target} = options;
     const dest = config.dest.path;
@@ -118,6 +119,7 @@ function getTaskCompileAssets(config, options) {
                 file.isBuffer() && logger('[compile:assets]:', getPathToCWD(file.path));
                 return file;
             }))
+            .pipe(isBinary())
             .pipe(compileFile(options))
             .pipe(gulp.dest(dest));
     };