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2014-03-30 boost::shared_ptr -> std::shared_ptrEelco Dolstra1-3/+1
2014-02-27 Set up a minimal /dev in chrootsEelco Dolstra1-7/+5
Not bind-mounting the /dev from the host also solves the problem with /dev/shm being a symlink to something not in the chroot.
2014-01-21 Fix some clang warningsEelco Dolstra1-2/+0
2013-12-10 Garbage collector: Release locks on temporary root filesEelco Dolstra1-0/+1
This allows processes waiting for such locks to proceed during the trash deletion phase of the garbage collector.
2013-11-14 Remove nix-setuid-helperEelco Dolstra1-1/+1
AFAIK, nobody uses it, it's not maintained, and it has no tests.
2013-10-22 For auto roots, show the intermediate linkEelco Dolstra1-1/+1
I.e. "nix-store -q --roots" will now show (for example) /home/eelco/Dev/nixpkgs/result rather than /nix/var/nix/gcroots/auto/53222qsppi12s2hkap8dm2lg8xhhyk6v
2013-07-12 Garbage collector: Don't follow symlinks arbitrarilyEelco Dolstra1-41/+39
Only indirect roots (symlinks to symlinks to the Nix store) are now supported.
2013-04-26 addAdditionalRoots(): Check each path only onceEelco Dolstra1-2/+2
2013-03-08 Revert "Prevent config.h from being clobbered"Eelco Dolstra1-1/+4
This reverts commit 28bba8c44f484eae38e8a15dcec73cfa999156f6.
2013-03-07 Prevent config.h from being clobberedEelco Dolstra1-4/+1
2013-01-05 Delete a left-over trash directory before doing a GCEelco Dolstra1-1/+4
2013-01-04 Fix "0 store paths deleted" messageEelco Dolstra1-0/+2
2013-01-03 Clear any immutable bits in the Nix storeEelco Dolstra1-2/+0
Doing this once makes subsequent operations like garbage collecting more efficient since we don't have to call makeMutable() first.
2012-12-20 Yet another rewrite of the garbage collectorEelco Dolstra1-130/+133
But this time it's *obviously* correct! No more segfaults due to infinite recursions for sure, etc. Also, move directories to /nix/store/trash instead of renaming them to /nix/store/bla-gc-<pid>. Then we can just delete /nix/store/trash at the end.
2012-12-19 If gc-keep-derivations is set, only keep the actual deriverEelco Dolstra1-1/+1
This prevents zillions of derivations from being kept, and fixes an infinite recursion in the garbage collector (due to an obscure cycle that can occur with fixed-output derivations).
2012-09-19 Templatise tokenizeString()Eelco Dolstra1-1/+1
2012-09-13 Vacuum the SQLite DB after running the garbage collectorEelco Dolstra1-0/+3
2012-09-13 Delete paths in a component in topologically sorted orderEelco Dolstra1-1/+3
The outputs of a derivation can refer to each other (even though they cannot have cycles), so they have to be deleted in the right order. http://hydra.nixos.org/build/3026118
2012-09-12 Handle gc-keep-outputs and gc-keep-derivations both enabledEelco Dolstra1-94/+97
If the options gc-keep-outputs and gc-keep-derivations are both enabled, you can get a cycle in the liveness graph. There was a hack to handle this, but it didn't work with multiple-output derivations, causing the garbage collector to fail with errors like ‘error: cannot delete path `...' because it is in use by `...'’. The garbage collector now handles strongly connected components in the liveness graph as a unit and decides whether to delete all or none of the paths in an SCC.
2012-08-27 Merge branch 'master' into no-manifestsEelco Dolstra1-8/+24
2012-08-05 Handle amount of disk space saved by hard linking being negativeEelco Dolstra1-2/+2
Fixes bogus messages like "currently hard linking saves 17592186044416.00 MiB".
2012-08-01 Count bytes freed deleting unused linksEelco Dolstra1-2/+4
2012-08-01 Drop the block count in the garbage collectorEelco Dolstra1-3/+2
2012-08-01 nix-store --gc: Make ‘--max-freed 0’ do the right thingEelco Dolstra1-2/+2
That is, delete almost nothing (it will still remove unused links from /nix/store/.links).
2012-08-01 removeUnusedLinks(): Print stats on disk space saved by hard linkingEelco Dolstra1-1/+16
2012-07-30 Refactor settings processingEelco Dolstra1-39/+39
Put all Nix configuration flags in a Settings object.
2012-07-23 Garbage collect unused links in /nix/store/.linksEelco Dolstra1-0/+37
Incremental optimisation requires creating links in /nix/store/.links to all files in the store. However, this means that if we delete a store path, no files are actually deleted because links in /nix/store/.links still exists. So we need to check /nix/store/.links for files with a link count of 1 and delete them.
2012-04-16 Fix obscure race condition in GC root creationEelco Dolstra1-16/+18
This should fix rare Hydra errors of the form: error: symlinking `/nix/var/nix/gcroots/per-user/hydra/hydra-roots/7sfhs5fdmjxm8sqgcpd0pgcsmz1kq0l0-nixos-iso-0.1pre33785-33795' to `/nix/store/7sfhs5fdmjxm8sqgcpd0pgcsmz1kq0l0-nixos-iso-0.1pre33785-33795': File exists
2012-03-26 Mac OS X fixEelco Dolstra1-0/+3
2012-03-26 Delete non-directory valid paths right awayEelco Dolstra1-16/+27
It's unlikely that rename() is faster than unlink() on a regular file or symlink, so don't bother.
2012-03-26 Make the garbage collector more concurrentEelco Dolstra1-11/+42
Make the garbage collector more concurrent by deleting valid paths outside the region where we're holding the global GC lock. This should greatly reduce the time during which new builds are blocked, since the deletion accounts for the vast majority of the time spent in the GC. To ensure that this is safe, the valid paths are invalidated and renamed to some arbitrary path while we're holding the lock. This ensures that we when we finally delete the path, it's not a (newly) valid or locked path.
2012-03-26 Remove the --max-links GC optionEelco Dolstra1-11/+1
We don't need this anymore now that current filesystems support more than 32,000 files in a directory.
2012-03-13 Ensure that Perl processes delete their entry in the temproots directoryEelco Dolstra1-0/+12
By moving the destructor object to libstore.so, it's also run when download-using-manifests and nix-prefetch-url exit. This prevents them from cluttering /nix/var/nix/temproots with stale files.
2012-03-05 Set the close-on-exec flag on file descriptorsEelco Dolstra1-0/+1
2012-02-15 Don't use deletePath() to delete a single fileEelco Dolstra1-1/+1
2012-02-09 Use data() instead of c_str() where appropriateEelco Dolstra1-1/+1
2011-12-30 * Move topoSortPaths() out of gc.cc.Eelco Dolstra1-36/+0
2011-12-30 * Reject a build if there is a cycle among the outputs. This isEelco Dolstra1-4/+10
necessary because existing code assumes that the references graph is acyclic.
2011-12-22 * Oops.Eelco Dolstra1-1/+1
2011-12-22 * In the garbage collector, delete invalid paths before deletingEelco Dolstra1-11/+35
unreachable paths. This matters when using --max-freed etc.: unreachable paths could become reachable again, so it's nicer to keep them if there is "real" garbage to be deleted. Also, don't use readDirectory() but read the Nix store and delete invalid paths in parallel. This reduces GC latency on very large Nix stores.
2011-12-22 * Drop unnecessary call to canonPath() (nixStore is already canonical).Eelco Dolstra1-1/+1
2011-08-31 * Eliminate all uses of the global variable ‘store’ from libstore.Eelco Dolstra1-24/+24
This should also fix: nix-instantiate: ./../boost/shared_ptr.hpp:254: T* boost::shared_ptr<T>::operator->() const [with T = nix::StoreAPI]: Assertion `px != 0' failed. which was caused by hashDerivationModulo() calling the ‘store’ object (during store upgrades) before openStore() assigned it.
2010-10-14 * Wrap deleteFromStore() in a transaction. Otherwise there might be aEelco Dolstra1-3/+5
race with other processes that add new referrers to a path, resulting in the garbage collector crashing with "foreign key constraint failed". (Nix/4) * Make --gc --print-dead etc. interruptible.
2010-08-31 `nix-store --verify' improvements:Eelco Dolstra1-2/+1
* If a path has disappeared, check its referrers first, and don't try to invalidate paths that have valid referrers. Otherwise we get a foreign key constraint violation. * Read the whole Nix store directory instead of statting each valid path, which is slower. * Acquire the global GC lock.
2010-08-30 * When using the build hook, distinguish between the stderr of theEelco Dolstra1-1/+1
hook script proper, and the stdout/stderr of the builder. Only the latter should be saved in /nix/var/log/nix/drvs. * Allow the verbosity to be set through an option. * Added a flag --quiet to lower the verbosity level.
2010-08-30 * Disable the GC reachability check for now (when creating new roots),Eelco Dolstra1-1/+1
as it's hopelessly inefficient.
2010-03-08 * Set `gc-keep-outputs' or `gc-keep-derivations' to false withEelco Dolstra1-0/+9
`--delete --ignore-liveness'.
2010-02-22 * Get derivation outputs from the database instead of the .drv file,Eelco Dolstra1-4/+4
which requires more I/O.
2010-02-22 * Revert r19650 (implement gc-keep-outputs by looking for derivationsEelco Dolstra1-53/+3
with the same name as the output) and instead use the DerivationOutputs table in the database, which is the correct way to to do things.
2010-02-02 * Remove most Cygwin-specific code. Cygwin 1.7 implements advisoryEelco Dolstra1-38/+0
POSIX locks, and simulates Unix-style file deletion semantics sufficiently. Note that this means that Nix won't work on Cygwin 1.5 anymore.