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* Fast builds.

This commit is contained in:
Eelco Dolstra 2003-11-01 23:29:02 +00:00
parent 7de1b2a698
commit c8268ca991
1 changed files with 3 additions and 10 deletions
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13
src/libnix/normalise.cc
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@ -127,24 +127,17 @@ Path normaliseNixExpr(const Path & _nePath, PathSet pending)
i != ne.derivation.env.end(); i++)
env[i->first] = i->second;
/* We can skip running the builder if we can expand all output
paths from their ids. */
bool fastBuild = false;
#if 0
/* We can skip running the builder if all output paths are already
valid. */
bool fastBuild = true;
for (PathSet::iterator i = ne.derivation.outputs.begin();
i != ne.derivation.outputs.end(); i++)
{
try {
expandId(i->second, i->first, "/", pending);
} catch (Error & e) {
debug(format("fast build failed for `%1%': %2%")
% i->first % e.what());
if (!isValidPath(*i)) {
fastBuild = false;
break;
}
}
#endif
if (!fastBuild) {