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1247
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1 #!/ur/bin/env python3 |
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2 |
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3 import shutil |
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4 import json |
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5 from pathlib import Path |
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6 from ast import literal_eval |
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7 from sat.core.i18n import _ |
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8 from sat.core.log import getLogger |
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9 from sat.core import exceptions |
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10 from sat.tools.common.template import safe |
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11 from libervia.server.constants import Const as C |
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12 from libervia.server.tasks import task |
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13 |
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14 |
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15 log = getLogger(__name__) |
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16 |
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17 |
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18 class Task(task.Task): |
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19 DOC_DIRS_DEFAULT = ('doc', 'docs') |
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20 |
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21 def prepare(self): |
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22 if "brython" not in self.resource.browser_modules: |
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23 raise exceptions.CancelError(f"No brython module found") |
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24 |
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25 brython_js = self.build_path / "brython.js" |
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26 if not brython_js.is_file(): |
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27 installed_ver = None |
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28 else: |
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29 with brython_js.open() as f: |
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30 for line in f: |
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31 if line.startswith('// implementation ['): |
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32 installed_ver = literal_eval(line[18:])[:3] |
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33 log.debug( |
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34 f"brython v{'.'.join(str(v) for v in installed_ver)} already " |
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35 f"installed") |
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36 break |
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37 else: |
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38 log.warning( |
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39 f"brython file at {brython_js} doesn't has implementation " |
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40 f"version" |
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41 ) |
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42 installed_ver = None |
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43 |
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44 import brython |
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45 ver = [int(v) for v in brython.implementation.split('.')[:3]] |
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46 if ver != installed_ver: |
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47 log.info(_("Installing Brython v{version}").format( |
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48 version='.'.join(str(v) for v in ver))) |
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49 data_path = Path(brython.__file__).parent / 'data' |
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50 # shutil has blocking method, but the task is run before we start |
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51 # the web server, so it's not a big deal |
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52 shutil.copyfile(data_path / "brython.js", brython_js) |
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53 else: |
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54 log.debug("Brython is already installed") |
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55 |
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56 self.WATCH_DIRS = [] |
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57 |
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58 for dyn_data in self.resource.browser_modules["brython"]: |
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59 url_hash = dyn_data['url_hash'] |
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60 import_url = f"/{C.BUILD_DIR}/{C.BUILD_DIR_DYN}/{url_hash}" |
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61 on_load_opts = { |
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62 "debug": 1, |
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63 "pythonpath": [import_url], |
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64 } |
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65 dyn_data['template'] = { |
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66 "scripts": [{"src": f"/{C.BUILD_DIR}/brython.js"}], |
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67 "body_onload": f"brython({json.dumps(on_load_opts)})", |
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68 } |
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69 self.WATCH_DIRS.append(dyn_data['path'].resolve()) |
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70 |
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71 def start(self): |
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72 dyn_path = self.build_path / C.BUILD_DIR_DYN |
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73 for dyn_data in self.resource.browser_modules["brython"]: |
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74 url_hash = dyn_data['url_hash'] |
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75 page_dyn_path = dyn_path / url_hash |
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76 if page_dyn_path.exists(): |
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77 log.debug("cleaning existing path") |
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78 shutil.rmtree(page_dyn_path) |
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79 |
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80 page_dyn_path.mkdir(parents=True, exist_ok=True) |
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81 log.debug("copying browser python files") |
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82 for p in dyn_data['path'].iterdir(): |
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83 log.debug(f"copying {p}") |
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84 if p.is_dir(): |
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85 shutil.copytree(p, page_dyn_path) |
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86 else: |
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87 shutil.copy(p, page_dyn_path) |
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88 |
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89 script = { |
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90 'type': 'text/python', |
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91 'src': f"/{C.BUILD_DIR}/{C.BUILD_DIR_DYN}/{url_hash}/__init__.py" |
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92 } |
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93 scripts = dyn_data['template']['scripts'] |
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94 if script not in scripts: |
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95 scripts.append(script) |
