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-rw-r--r--common.py12
-rw-r--r--config.yml8
-rwxr-xr-xwebmap-download35
3 files changed, 26 insertions, 29 deletions
diff --git a/common.py b/common.py
index e4456af..44c8a53 100644
--- a/common.py
+++ b/common.py
@@ -7,10 +7,8 @@ from stat import S_ISDIR
from xdg.BaseDirectory import xdg_config_home
import logging
import yaml
-import __main__ as main
def load_config(path=None, groupnames=None):
- main_script = os.path.basename(main.__file__)
if path is None:
for p in [Path(),
Path(xdg_config_home).joinpath('webmap'),
@@ -36,14 +34,14 @@ def load_config(path=None, groupnames=None):
download = source.get('download', None)
if download is None:
url = None
- script = None
+ dl_module = None
elif isinstance(download, str):
url = download
- script = None
+ dl_module = None
source['download'] = download = { 'url': url }
else:
url = download.get('url', None)
- script = download.get('script', None)
+ dl_module = download.get('module', None)
if url is None:
urlp = None
else:
@@ -73,9 +71,9 @@ def load_config(path=None, groupnames=None):
cache = Path(cache)
source['cache']['path'] = cache
- v = { 'url': urlp, 'script': main_script if script is None else script }
+ v = { 'url': urlp, 'module': dl_module }
if cache in destinations and destinations[cache] != v:
- # allow destination conflicts, but only when the source URL and script match
+ # allow destination conflicts, but only when the source URL and module match
raise Exception(f'Destination conflict for layer "{name}"')
destinations[cache] = v
diff --git a/config.yml b/config.yml
index 5b6f842..029e60b 100644
--- a/config.yml
+++ b/config.yml
@@ -26,14 +26,14 @@ layers:
# # error is raised when the payload size exceeds this value.
# # (Default: 67108864, in other words 64MiB)
# max-size: 1073741824
-# # source:download:script: Basename of the download script to use for
-# # that layer. The entry is ignored when the main script doesn't match.
-# script: webmap-download
+# # source:download:module: Basename of the download module to use for
+# # that layer.
+# module: webmap-download
# cache:
# # source:cache:path: Local path (relative to --cachedir) where to
# # (atomically) save the downloaded file. The same path can be used by
# # multiple entries as long as their pairs (source:download:url,
-# # source:download:script) match. Any parent directories are created if
+# # source:download:module) match. Any parent directories are created if
# # needed.
# # If the path is empty or ends with a '/' character then it treated as a
# # directory and the last component of source:download:url implicitly
diff --git a/webmap-download b/webmap-download
index f87cddf..be48bbb 100755
--- a/webmap-download
+++ b/webmap-download
@@ -30,7 +30,12 @@ def download_trystream(url, **kwargs):
r.raise_for_status()
return r
-def download(url, dest, dir_fd=None, headers={}, max_size=None, session=requests, progress=None):
+def download(url, dest, dir_fd=None, headers={}, session=requests, progress=None):
+ url = None if dl is None else dl.get('url', None)
+ if url is None:
+ logging.error('%s has no source URL, ignoring', dest)
+ return
+ max_size = dl.get('max-size', 2**26) # 64MiB
logging.info('Downloading %s…', url)
destPath = Path(dest)
dest_tmp = destPath.with_stem(f'.{destPath.stem}.new').as_posix()
@@ -175,24 +180,18 @@ if __name__ == '__main__':
downloads = set()
for source in sources:
dl = source.get('download', None)
- script = None if dl is None else dl.get('script', None)
- if script is not None and script != os.path.basename(__file__):
- logging.info('Layer "%s" is not for us (%s != %s), skipping',
- source['layername'],
- script, os.path.basename(__file__))
- continue
-
- url = None if dl is None else dl.get('url', None)
- if url is None:
- logging.error('Layer "%s" has no source URL, ignoring',
- source['layername'])
- continue
+ dl_module = None if dl is None else dl.get('module', None)
+ if dl_module is None:
+ fetch = download
+ else:
+ dl_module = __import__(dl_module)
+ fetch = dl_module.download
cache = source.get('cache', None)
dest = None if cache is None else cache.get('path', None)
if dest is None:
raise Exception('Impossible')
- elif url in downloads:
+ elif dest in downloads:
logging.info('%s was already downloaded, skipping', dest)
continue
@@ -231,16 +230,16 @@ if __name__ == '__main__':
dest, format_time(s))
continue
headers['If-Modified-Since'] = formatdate(timeval=st.st_mtime, localtime=False, usegmt=True)
- max_size = dl.get('max-size', 2**26) # 64MiB
- download(url, dest, dir_fd=destdir_fd, max_size=max_size,
+ fetch(dl, dest, dir_fd=destdir_fd,
headers=headers, session=sessionRequests,
progress=pbar)
- downloads.add(url)
+ downloads.add(dest)
finally:
if lockdir_fd is not None:
os.close(lock_fd)
except Exception:
- logging.exception('Could not download %s as %s', url, dest)
+ logging.exception('Could not download %s as %s',
+ dl.get('url', source['layername']), dest)
if args.exit_code:
rv = 1
exit(rv)