lix -

Age	Commit message (Collapse)	Author
2015-03-06	Fix typos: s/the the/the/	Daniel Hahler

2014-12-12	Ensure we're writing to stderr in the builder	Eelco Dolstra
	http://hydra.nixos.org/build/17862041
2014-11-19	Disable vacuuming the DB after garbage collection	Eelco Dolstra
	Especially in WAL mode on a highly loaded machine, this is not a good idea because it results in a WAL file of approximately the same size ad the database, which apparently cannot be deleted while anybody is accessing it.
2014-11-19	Clean up temp roots in a more C++ way	Eelco Dolstra

2014-11-04	nix-store --gc: Don't warn about missing manifests directory	Eelco Dolstra

2014-10-03	Remove some duplicate code	Eelco Dolstra

2014-08-20	Use proper quotes everywhere	Eelco Dolstra

2014-08-13	Use regular file GC roots if possible	Eelco Dolstra
	This makes hydra-eval-jobs create roots as regular files. See 1c208f2b7ef8ffb5e6d435d703dad83223a67bd6.
2014-08-01	findRoots(): Prevent a call to lstat()	Eelco Dolstra
	This means that getting the roots from /nix/var/nix/.../hydra-roots doesn't need any I/O other than reading the directory.
2014-08-01	Make readDirectory() return inode / file type	Eelco Dolstra

2014-08-01	Allow regular files as GC roots	Eelco Dolstra
	If a root is a regular file, then its name must denote a store path. For instance, the existence of the file /nix/var/nix/gcroots/per-user/eelco/hydra-roots/wzc3cy1wwwd6d0dgxpa77ijr1yp50s6v-libxml2-2.7.7 would cause /nix/store/wzc3cy1wwwd6d0dgxpa77ijr1yp50s6v-libxml2-2.7.7 to be a root. This is useful because it involves less I/O (no need for a readlink() call) and takes up less disk space (the symlink target typically takes up a full disk block, while directory entries are packed more efficiently). This is particularly important for hydra.nixos.org, which has hundreds of thousands of roots, and where reading the roots can take 25 minutes.
2014-03-30	boost::shared_ptr -> std::shared_ptr	Eelco Dolstra

2014-02-27	Set up a minimal /dev in chroots	Eelco Dolstra
	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 warnings	Eelco Dolstra

2013-12-10	Garbage collector: Release locks on temporary root files	Eelco Dolstra
	This allows processes waiting for such locks to proceed during the trash deletion phase of the garbage collector.
2013-11-14	Remove nix-setuid-helper	Eelco Dolstra
	AFAIK, nobody uses it, it's not maintained, and it has no tests.
2013-10-22	For auto roots, show the intermediate link	Eelco Dolstra
	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 arbitrarily	Eelco Dolstra
	Only indirect roots (symlinks to symlinks to the Nix store) are now supported.
2013-04-26	addAdditionalRoots(): Check each path only once	Eelco Dolstra

2013-03-08	Revert "Prevent config.h from being clobbered"	Eelco Dolstra
	This reverts commit 28bba8c44f484eae38e8a15dcec73cfa999156f6.
2013-03-07	Prevent config.h from being clobbered	Eelco Dolstra

2013-01-05	Delete a left-over trash directory before doing a GC	Eelco Dolstra

2013-01-04	Fix "0 store paths deleted" message	Eelco Dolstra

2013-01-03	Clear any immutable bits in the Nix store	Eelco Dolstra
	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 collector	Eelco Dolstra
	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 deriver	Eelco Dolstra
	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 Dolstra

2012-09-13	Vacuum the SQLite DB after running the garbage collector	Eelco Dolstra

2012-09-13	Delete paths in a component in topologically sorted order	Eelco Dolstra
	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 enabled	Eelco Dolstra
	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-manifests	Eelco Dolstra

2012-08-05	Handle amount of disk space saved by hard linking being negative	Eelco Dolstra
	Fixes bogus messages like "currently hard linking saves 17592186044416.00 MiB".
2012-08-01	Count bytes freed deleting unused links	Eelco Dolstra

2012-08-01	Drop the block count in the garbage collector	Eelco Dolstra

2012-08-01	nix-store --gc: Make ‘--max-freed 0’ do the right thing	Eelco Dolstra
	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 linking	Eelco Dolstra

2012-07-30	Refactor settings processing	Eelco Dolstra
	Put all Nix configuration flags in a Settings object.
2012-07-23	Garbage collect unused links in /nix/store/.links	Eelco Dolstra
	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 creation	Eelco Dolstra
	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 fix	Eelco Dolstra

2012-03-26	Delete non-directory valid paths right away	Eelco Dolstra
	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 concurrent	Eelco Dolstra
	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 option	Eelco Dolstra
	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 directory	Eelco Dolstra
	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 descriptors	Eelco Dolstra

2012-02-15	Don't use deletePath() to delete a single file	Eelco Dolstra

2012-02-09	Use data() instead of c_str() where appropriate	Eelco Dolstra

2011-12-30	* Move topoSortPaths() out of gc.cc.	Eelco Dolstra

2011-12-30	* Reject a build if there is a cycle among the outputs. This is	Eelco Dolstra
	necessary because existing code assumes that the references graph is acyclic.
2011-12-22	* Oops.	Eelco Dolstra