Patch to make file_packager.py work standalone (Emscripten master 04d13b99d0630496139fa8f424c62aad65588c7b)

file_packager_standalone.patch

--- ../Repositorios/mono/sdks/builds/toolchains/emsdk/upstream/emscripten/tools/file_packager.py	2019-11-06 18:50:40.000000000 +0100
+++ file_packager.py	2019-11-15 11:26:57.394870824 +0100
@@ -69,13 +69,13 @@
 
 sys.path.insert(1, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 
-from tools.toolchain_profiler import ToolchainProfiler
-if __name__ == '__main__':
-  ToolchainProfiler.record_process_start()
-
 import posixpath
-from tools import shared
-from tools.jsrun import run_js
+
+# Taken from shared.py
+def escape_for_js_string(s):
+  s = s.replace('\\', '/').replace("'", "\\'").replace('"', '\\"')
+  return s
+
 from subprocess import PIPE
 import fnmatch
 import json
@@ -516,24 +516,12 @@
           }
     '''
     use_data += ("          Module['removeRunDependency']('datafile_%s');\n"
-                 % shared.JS.escape_for_js_string(data_target))
+                 % escape_for_js_string(data_target))
 
   else:
     # LZ4FS usage
-    temp = data_target + '.orig'
-    shutil.move(data_target, temp)
-    meta = run_js(shared.path_from_root('tools', 'lz4-compress.js'),
-                  shared.NODE_JS,
-                  [shared.path_from_root('src', 'mini-lz4.js'),
-                   temp, data_target], stdout=PIPE)
-    os.unlink(temp)
-    use_data = '''
-          var compressedData = %s;
-          compressedData['data'] = byteArray;
-          assert(typeof LZ4 === 'object', 'LZ4 not present - was your app build with  -s LZ4=1  ?');
-          LZ4.loadPackage({ 'metadata': metadata, 'compressedData': compressedData });
-          Module['removeRunDependency']('datafile_%s');
-    ''' % (meta, shared.JS.escape_for_js_string(data_target))
+    print('Error: LZ4 is intentionally disabled; please refer to a complete Emscripten\'s file_packager.py')
+    sys.exit(1)
 
   package_uuid = uuid.uuid4()
   package_name = data_target
@@ -556,8 +544,8 @@
       err('warning: you defined Module.locateFilePackage, that has been renamed to Module.locateFile (using your locateFilePackage for now)');
     }
     var REMOTE_PACKAGE_NAME = Module['locateFile'] ? Module['locateFile'](REMOTE_PACKAGE_BASE, '') : REMOTE_PACKAGE_BASE;
-  ''' % (shared.JS.escape_for_js_string(data_target),
-         shared.JS.escape_for_js_string(remote_package_name))
+  ''' % (escape_for_js_string(data_target),
+         escape_for_js_string(remote_package_name))
   metadata['remote_package_size'] = remote_package_size
   metadata['package_uuid'] = str(package_uuid)
   ret += '''
@@ -784,7 +772,7 @@
       %s
     };
     Module['addRunDependency']('datafile_%s');
-  ''' % (use_data, shared.JS.escape_for_js_string(data_target))
+  ''' % (use_data, escape_for_js_string(data_target))
   # use basename because from the browser's point of view,
   # we need to find the datafile in the same dir as the html file