SERVER-26642 use char arrays instead of str literals for js code

(cherry picked from commit 4765384)

site_scons/site_tools/jstoh.py

@@ -1,55 +1,55 @@
 import os
 import sys
 
+
 def jsToHeader(target, source):
 
     outFile = target
 
-    h =  ['#include "mongo/base/string_data.h"'
-        ,'namespace mongo {'
-        ,'struct JSFile{ const char* name; const StringData& source; };'
-        ,'namespace JSFiles{'
-         ]
+    h = [
+        '#include "mongo/base/string_data.h"',
+        'namespace mongo {',
+        'struct JSFile{ const char* name; const StringData& source; };',
+        'namespace JSFiles{',
+    ]
 
-    def cppEscape(s):
-        s = s.rstrip()
-        s = s.replace( '\\', '\\\\' )
-        s = s.replace( '"', r'\"' )
-        return s
+    def lineToChars(s):
+        return ','.join(str(ord(c)) for c in (s.rstrip() + '\n')) + ','
 
     for s in source:
         filename = str(s)
         objname = os.path.split(filename)[1].split('.')[0]
         stringname = '_jscode_raw_' + objname
 
-        h.append('const StringData ' + stringname + " = ")
+        h.append('const char ' + stringname + "[] = {")
 
-        for l in open( filename, 'r' ):
-            h.append( '"' + cppEscape(l) + r'\n" ' )
+        with open(filename, 'r') as f:
+            for line in f:
+                h.append(lineToChars(line))
 
-        h.append(";")
-        h.append('extern const JSFile %s;'%objname) #symbols aren't exported w/o this
-        h.append('const JSFile %s = { "%s", %s };'%(objname, filename.replace('\\', '/'), stringname))
+        h.append("0};")
+        # symbols aren't exported w/o this
+        h.append('extern const JSFile %s;' % objname)
+        h.append('const JSFile %s = { "%s", StringData(%s) };' %
+                 (objname, filename.replace('\\', '/'), stringname))
 
     h.append("} // namespace JSFiles")
     h.append("} // namespace mongo")
     h.append("")
 
-    text = '\n'.join(h);
+    text = '\n'.join(h)
 
     print "writing: %s" % outFile
-    out = open( outFile, 'wb' )
-    try:
-        out.write( text )
-    finally:
-        out.close()
+    with open(outFile, 'wb') as out:
+        try:
+            out.write(text)
+        finally:
+            out.close()
 
 
 if __name__ == "__main__":
     if len(sys.argv) < 3:
         print "Must specify [target] [source] "
-        sys.exit(1);
+        sys.exit(1)
 
     jsToHeader(sys.argv[1], sys.argv[2:])
-
-