Comments (2)
Although implemented specifically for saving downloads of setup.ini, it's generalized so also applies to package downloads. Previously we just relied on hash md5 changes for deciding on whether to download or not. (Ideally, we should also be relying on hash check of setup.ini. I don't think that's implemented upstream either though(?) If not, that should be done too.)
The new functions:
+ url_time_to_dateime: Convert "last-modified" web server header to a python datetime object
+ datetime_to_unixtime: Convert a datetime object to unix UTC time
... are not robust, and likely susceptible to differences in locale syntax. I [asked SO for an idiomatic approach][0], but no solutions yet. I've spent about 8 hours on these few lines; date and time is hard! I'll be very surprised if there no bugs in this change set.
[0] http://stackoverflow.com/questions/29314287/python-requests-download-only-if-newer
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Useful threads:
- http://stackoverflow.com/questions/11405049/how-to-get-the-file-modification-date-in-utc-from-python
- http://stackoverflow.com/questions/24182623/python-converting-datetime-to-be-used-in-os-utime
- http://stackoverflow.com/questions/8777753/converting-datetime-date-to-utc-timestamp-in-python/ (very good)
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Related Issues (20)
- Clarify core data model, we're in a data muddle HOT 9
- Version comparison doesn't really work HOT 1
- Couldn't we shorten install() HOT 4
- command line option -r --root HOT 2
- Fixed with new error HOT 10
- Use alternate ini option is broken HOT 5
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- Building exe with pyinstaller (2.1) fails with requests (>2.5.1) HOT 3
- apt with alternate ini doesn't test md5 against alternate ini HOT 1
- Wrong downloads folder chosen HOT 2
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- Issue on getopt, comma missing
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- Error: "list" not understood, please run "apt help" HOT 1
- Shrink apt.exe as much as possible HOT 3
- Test script output missing stdout
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- Apt with --root to save OSGEO4W_ROOT in shell environment HOT 5
- Short form bits `-b=64 ` is broken HOT 1
- Permission denied on certain files when upgrading
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