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nix-store -r: Add ‘--ignore-unknown’ flag

This flag causes paths that do not have a known substitute to be
quietly ignored.  This is mostly useful for Charon, allowing it to
speed up deployment by letting a machine use substitutes for all
substitutable paths, instead of uploading them.  The latter is
frequently faster, e.g. if the target machine has a fast Internet
connection while the source machine is on a slow ADSL line.
This commit is contained in:
Eelco Dolstra 2012-11-20 00:27:25 +01:00
parent bf3725da2a
commit 9de6bc5d05
4 changed files with 44 additions and 10 deletions

View file

@ -47,7 +47,14 @@ void printMissing(StoreAPI & store, const PathSet & paths)
unsigned long long downloadSize, narSize;
PathSet willBuild, willSubstitute, unknown;
queryMissing(store, paths, willBuild, willSubstitute, unknown, downloadSize, narSize);
printMissing(willBuild, willSubstitute, unknown, downloadSize, narSize);
}
void printMissing(const PathSet & willBuild,
const PathSet & willSubstitute, const PathSet & unknown,
unsigned long long downloadSize, unsigned long long narSize)
{
if (!willBuild.empty()) {
printMsg(lvlInfo, format("these derivations will be built:"));
foreach (PathSet::iterator, i, willBuild)