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authorEelco Dolstra <eelco.dolstra@logicblox.com>2015-04-09T09·55+0200
committerEelco Dolstra <eelco.dolstra@logicblox.com>2015-04-09T09·55+0200
commitc1f04fae350acf9d72c56ef4f83037b479f25ab0 (patch)
treea6f257952e49bf4077efc0a81adf5e21cfef41ac /src/libexpr/download.hh
parent60340ce3e2f793caf1704997a4d7a5a066e9ef24 (diff)
Implement a TTL on cached fetchurl/fetchTarball results
This is because we don't want to do HTTP requests on every evaluation,
even though we can prevent a full redownload via the cached ETag. The
default is one hour.
Diffstat (limited to 'src/libexpr/download.hh')
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