Add checkpointing and a "max packages to download" flag to CLI #58
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The current flow of conda-mirror is:
By checkpointing, I mean do steps 2, 3, 4 every N packages. In this case, I've hardcoded it to 25 (but that could easily be another configurable flag). The advantage of doing this is that it means that the mirror process can be interrupted pretty much at any point and you'll only lose, at most, 25 new packages that have been downloaded. As opposed to how this thing currently works where if the script is interrupted at any point then all of the packages will be deleted and you'll have to download them again.
I also added a
--max-packages
flag which can be useful for debugging