Mercurial > libervia-web
annotate libervia/server/tasks/implicit/task_brython.py @ 1253:6d49fae517ba
pages: browser metadata + root `_browser`:
- the `_browser` directory can now be put in root of a site `pages` directory, it will then
include modules for the whole website
- in `_browser` directories (notably the root one), a `browser_meta.json` file can be put to
specify settings for a browser engine
- pathlib.Path is now used LiberviaRootResource.site_path
- introduced some type hints
- task_brython copy modules in root `_browser` to build_path root.
- minimal python version is now 3.7 due to type hints
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Wed, 29 Apr 2020 17:34:53 +0200 |
| parents | 821b6ce57f99 |
| children | 08cd652dea14 |
| rev | line source |
|---|---|
| 1247 | 1 #!/ur/bin/env python3 |
| 2 | |
| 3 import shutil | |
| 4 import json | |
| 5 from pathlib import Path | |
| 6 from ast import literal_eval | |
| 7 from sat.core.i18n import _ | |
| 8 from sat.core.log import getLogger | |
| 9 from sat.core import exceptions | |
| 10 from libervia.server.constants import Const as C | |
| 11 from libervia.server.tasks import task | |
| 12 | |
| 13 | |
| 14 log = getLogger(__name__) | |
| 15 | |
| 16 | |
| 17 class Task(task.Task): | |
| 18 | |
| 19 def prepare(self): | |
| 20 if "brython" not in self.resource.browser_modules: | |
| 21 raise exceptions.CancelError(f"No brython module found") | |
| 22 | |
| 23 brython_js = self.build_path / "brython.js" | |
| 24 if not brython_js.is_file(): | |
| 25 installed_ver = None | |
| 26 else: | |
| 27 with brython_js.open() as f: | |
| 28 for line in f: | |
| 29 if line.startswith('// implementation ['): | |
| 30 installed_ver = literal_eval(line[18:])[:3] | |
| 31 log.debug( | |
| 32 f"brython v{'.'.join(str(v) for v in installed_ver)} already " | |
| 33 f"installed") | |
| 34 break | |
| 35 else: | |
| 36 log.warning( | |
| 37 f"brython file at {brython_js} doesn't has implementation " | |
| 38 f"version" | |
| 39 ) | |
| 40 installed_ver = None | |
| 41 | |
|
1250
821b6ce57f99
server (tasks/brython): log an error if brython is missing and needed
Goffi <goffi@goffi.org>
parents:
1247
diff
changeset
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42 try: |
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821b6ce57f99
server (tasks/brython): log an error if brython is missing and needed
Goffi <goffi@goffi.org>
parents:
1247
diff
changeset
|
43 import brython |
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821b6ce57f99
server (tasks/brython): log an error if brython is missing and needed
Goffi <goffi@goffi.org>
parents:
1247
diff
changeset
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44 except ModuleNotFoundError as e: |
|
821b6ce57f99
server (tasks/brython): log an error if brython is missing and needed
Goffi <goffi@goffi.org>
parents:
1247
diff
changeset
|
45 log.error('"brython" module is missing, can\'t use browser code for Brython') |
|
821b6ce57f99
server (tasks/brython): log an error if brython is missing and needed
Goffi <goffi@goffi.org>
parents:
1247
diff
changeset
|
46 raise e |
| 1247 | 47 ver = [int(v) for v in brython.implementation.split('.')[:3]] |
| 48 if ver != installed_ver: | |
| 49 log.info(_("Installing Brython v{version}").format( | |
| 50 version='.'.join(str(v) for v in ver))) | |
| 51 data_path = Path(brython.__file__).parent / 'data' | |
| 52 # shutil has blocking method, but the task is run before we start | |
| 53 # the web server, so it's not a big deal | |
| 54 shutil.copyfile(data_path / "brython.js", brython_js) | |
| 55 else: | |
| 56 log.debug("Brython is already installed") | |
| 57 | |
| 58 self.WATCH_DIRS = [] | |
| 59 | |
| 60 for dyn_data in self.resource.browser_modules["brython"]: | |
| 61 url_hash = dyn_data['url_hash'] | |
| 62 import_url = f"/{C.BUILD_DIR}/{C.BUILD_DIR_DYN}/{url_hash}" | |
| 63 on_load_opts = { | |
| 64 "debug": 1, | |
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65 "cache": True, |
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parents:
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66 "pythonpath": [f"/{C.BUILD_DIR}", import_url], |
| 1247 | 67 } |
| 68 dyn_data['template'] = { | |
| 69 "scripts": [{"src": f"/{C.BUILD_DIR}/brython.js"}], | |
| 70 "body_onload": f"brython({json.dumps(on_load_opts)})", | |
| 71 } | |
| 72 self.WATCH_DIRS.append(dyn_data['path'].resolve()) | |
| 73 | |
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parents:
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74 def copyFiles(self, files_paths, dest): |
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parents:
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75 for p in files_paths: |
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parents:
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76 log.debug(f"copying {p}") |
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Goffi <goffi@goffi.org>
parents:
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77 if p.is_dir(): |
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parents:
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78 shutil.copytree(p, dest) |
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Goffi <goffi@goffi.org>
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79 else: |
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parents:
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80 shutil.copy(p, dest) |
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6d49fae517ba
pages: browser metadata + root `_browser`:
Goffi <goffi@goffi.org>
parents:
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diff
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81 |
| 1247 | 82 def start(self): |
| 83 dyn_path = self.build_path / C.BUILD_DIR_DYN | |
| 84 for dyn_data in self.resource.browser_modules["brython"]: | |
| 85 url_hash = dyn_data['url_hash'] | |
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Goffi <goffi@goffi.org>
parents:
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86 if url_hash is None: |
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Goffi <goffi@goffi.org>
parents:
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87 # root modules |
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pages: browser metadata + root `_browser`:
Goffi <goffi@goffi.org>
parents:
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88 self.copyFiles(dyn_data['path'].glob('*py'), self.build_path) |
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6d49fae517ba
pages: browser metadata + root `_browser`:
Goffi <goffi@goffi.org>
parents:
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89 else: |
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parents:
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90 page_dyn_path = dyn_path / url_hash |
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parents:
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91 if page_dyn_path.exists(): |
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parents:
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92 log.debug("cleaning existing path") |
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Goffi <goffi@goffi.org>
parents:
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93 shutil.rmtree(page_dyn_path) |
| 1247 | 94 |
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Goffi <goffi@goffi.org>
parents:
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diff
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95 page_dyn_path.mkdir(parents=True, exist_ok=True) |
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6d49fae517ba
pages: browser metadata + root `_browser`:
Goffi <goffi@goffi.org>
parents:
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diff
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96 log.debug("copying browser python files") |
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6d49fae517ba
pages: browser metadata + root `_browser`:
Goffi <goffi@goffi.org>
parents:
1250
diff
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97 self.copyFiles(dyn_data['path'].iterdir(), page_dyn_path) |
| 1247 | 98 |
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6d49fae517ba
pages: browser metadata + root `_browser`:
Goffi <goffi@goffi.org>
parents:
1250
diff
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99 script = { |
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Goffi <goffi@goffi.org>
parents:
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diff
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100 'type': 'text/python', |
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6d49fae517ba
pages: browser metadata + root `_browser`:
Goffi <goffi@goffi.org>
parents:
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diff
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101 'src': f"/{C.BUILD_DIR}/{C.BUILD_DIR_DYN}/{url_hash}/__init__.py" |
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Goffi <goffi@goffi.org>
parents:
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102 } |
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6d49fae517ba
pages: browser metadata + root `_browser`:
Goffi <goffi@goffi.org>
parents:
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diff
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103 scripts = dyn_data['template']['scripts'] |
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6d49fae517ba
pages: browser metadata + root `_browser`:
Goffi <goffi@goffi.org>
parents:
1250
diff
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104 if script not in scripts: |
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6d49fae517ba
pages: browser metadata + root `_browser`:
Goffi <goffi@goffi.org>
parents:
1250
diff
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105 scripts.append(script) |