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* `nix-env --set': support --dry-run.

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This commit is contained in:
Eelco Dolstra 2008-08-04 14:58:50 +00:00
parent 7592f48c83
commit 001b3f06ec
1 changed files with 10 additions and 3 deletions
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13
src/nix-env/nix-env.cc
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@ -791,10 +791,17 @@ static void opSet(Globals & globals,
DrvInfo & drv(elems.front()); DrvInfo & drv(elems.front());
if (drv.queryDrvPath(globals.state) != "") if (drv.queryDrvPath(globals.state) != "") {
store->buildDerivations(singleton<PathSet>(drv.queryDrvPath(globals.state))); PathSet paths = singleton<PathSet>(drv.queryDrvPath(globals.state));
else printMissing(paths);
if (globals.dryRun) return;
store->buildDerivations(paths);
}
else {
printMissing(singleton<PathSet>(drv.queryOutPath(globals.state)));
if (globals.dryRun) return;
store->ensurePath(drv.queryOutPath(globals.state)); store->ensurePath(drv.queryOutPath(globals.state));
}
debug(format("switching to new user environment")); debug(format("switching to new user environment"));
Path generation = createGeneration(globals.profile, drv.queryOutPath(globals.state)); Path generation = createGeneration(globals.profile, drv.queryOutPath(globals.state));