b8f0b7309f
In this situation, curl -o exits successfully without creating the output file. There was already a workaround for curl file:/// but I did not realize this also affected regular url downloads. To fix it, pre-create the destination file before starting curl. Since we cannot always know the size of an url before trying to download it, let's always do this. Note that since curl is told -C -, we have to consider if this makes curl try to do a ranged download, which might fail on some servers where a regular download would have succeeded. My testing indicates this isn't a problem; since the file is empty, curl seems to not try to do a ranged download. Original report: https://github.com/datalad/datalad/issues/79 Curl bug report: https://github.com/bagder/curl/issues/183 |
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