Hi! Coding Python with switching to coding JS - really painful. So, I tried Rapydscript (RS) and I like it very much! Unfortunately, I couldn't find how to automate compilation RS-files to pure JS. Here is my solution to embed RS to web2py
1. Download and install Node.js <http://Nodejs.org> to anywhere (RS-compiler works on it, i.e. it's required only for developing, it won't be a dependence of your web2py project) 2. Download and unpack Rapydscript <http://rapydscript.pyjeon.com>to anywhere. Or you can done it using GIT, as suggested in the manual (it's version 0.3.9 at the moment and it works w/o GIT-install) 3. Code a little module to automate compilation your RS-files to pure JS and place it in* your_w2p_app/modUles* dir, here is my one import sys import os from stat import ST_MTIME import json as js import subprocess as subp import portalocker get_fname = lambda full_name: os.path.split(full_name)[1] def change_ext(f_name, ext): return os.path.splitext(f_name)[0] + ext def clear_file(f): f.seek(0) f.truncate() class _log(object): # used to track changes to avoid parallel and extra recompilation def __init__(self, f_name): self.f_name=f_name self.error={} self.f_obj=None self.log = None def open_read(self): f_name=self.f_name try: if os.path.isfile(f_name): md='r+' else: md='w' f = open(f_name, md) self.f_obj = f portalocker.lock(f, portalocker.LOCK_EX ) if md=='r+': tmp= f.read() self.log = (tmp and js.loads(tmp)) or {} else: self.log = {} except : self.error['open_read'] = sys.exc_info()[0] return self.error['open_read'] is None def save(self): if not self.f_obj: return try: clear_file(self.f_obj) self.f_obj.write(js.dumps(self.log)) self.f_obj.close() except : self.error['save'] = sys.exc_info()[0] def set_compile_time(self, pyj_fname): if self.log is None: return f_stat = os.stat(pyj_fname) self.log[ get_fname(pyj_fname) ] = f_stat[ST_MTIME] def is_up_to_date(self, pyj_fname): if self.log is None: return False f_stat = os.stat(pyj_fname) return self.log[ get_fname(pyj_fname) ] == f_stat[ST_MTIME] class rs_compiler(object): def __init__(self, path_to_nodejs, path_to_RS): self.node = path_to_nodejs self.rs_engine = path_to_RS self.last_ret_code = None self.last_rslts = None def _rs_compile(self, src, dst, log, force_compile=False): ret = None if force_compile or not log.is_up_to_date(src) or not os.path.isfile(dst): ret = subp.call( [self.node, self.rs_engine, src, '-p', '-o', dst]) if ret==0: log.set_compile_time(src) self.last_ret_code = ret return ret def rs_compile_dir(self, src, dst, force_compile=False): log = _log(os.path.join(dst, 'compile_inf.json' )) # 'compile_inf.json' - contains dict { 'file_1.pyj' : ST_MTIME, 'file_2.pyj' : ST_MTIME ... } # it will be created/overwrited in the same dir as JS-files if not log.open_read(): return {}; joinp = os.path.join all_dir = os.listdir(src) src_files = [f for f in all_dir if os.path.isfile(joinp(src, f)) and f[-4:]=='.pyj'] ret={} for f in src_files: src_f = joinp(src, f) dst_f = joinp(dst, change_ext(f, '.js')) self._rs_compile(src_f, dst_f, log, force_compile=force_compile) rslt=dict( ret_code = self.last_ret_code, open_read = log.error.get('open_read', None), log_save_err = log.error.get('save', None), ) ret[f] = rslt self.last_rslts=ret log.save() return ret def main(): pass if __name__ == '__main__': main() Now, to automate compilation you can place some code like below in db.py (or in another model-file) ... import rs_compiler def compile_pyj(): node='path_to/nodejs/node.exe' rs_engine = 'path_to/RapydScript-master/bin/rapydscript' rs = rs_compiler.rs_compiler(node, rs_engine) src = os.path.join(request.folder, 'private') # I place my RS-files in 'w2p_app/private' dir - you can choose another one dst = os.path.join(request.folder, 'static/js') print rs.rs_compile_dir(src, dst) # compile each src/file_name.pyj to dst/file_name.js - overwriting JS-files without any warning! compile_pyj() -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups "web2py-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
