about summary refs log tree commit diff
path: root/src/libstore/optimise-store.cc
AgeCommit message (Collapse)AuthorFilesLines
2012-07-30 Refactor settings processingEelco Dolstra1-15/+13
Put all Nix configuration flags in a Settings object.
2012-07-26 Merge branch 'master' into no-manifestsEelco Dolstra1-104/+114
2012-07-23 Handle platforms that don't support linking to a symlinkEelco Dolstra1-2/+7
E.g. Darwin doesn't allow this.
2012-07-23 Unlink the right fileEelco Dolstra1-2/+2
2012-07-23 Automatically optimise the Nix store when a new path is addedEelco Dolstra1-9/+13
Auto-optimisation is enabled by default. It can be turned off by setting auto-optimise-store to false in nix.conf.
2012-07-23 optimiseStore(): Use a content-addressed file store in /nix/store/.linksEelco Dolstra1-106/+107
optimiseStore() now creates persistent, content-addressed hard links in /nix/store/.links. For instance, if it encounters a file P with hash H, it will create a hard link P' = /nix/store/.link/<H> to P if P' doesn't already exist; if P' exist, then P is replaced by a hard link to P'. This is better than the previous in-memory map, because it had the tendency to unnecessarily replace hard links with a hard link to whatever happened to be the first file with a given hash it encountered. It also allows on-the-fly, incremental optimisation.
2012-07-11 Rename queryValidPaths() to queryAllValidPaths()Eelco Dolstra1-1/+1
2012-02-15 On Linux, make the Nix store really read-only by using the immutable bitEelco Dolstra1-2/+24
I was bitten one time too many by Python modifying the Nix store by creating *.pyc files when run as root. On Linux, we can prevent this by setting the immutable bit on files and directories (as in ‘chattr +i’). This isn't supported by all filesystems, so it's not an error if setting the bit fails. The immutable bit is cleared by the garbage collector before deleting a path. The only tricky aspect is in optimiseStore(), since it's forbidden to create hard links to an immutable file. Thus optimiseStore() temporarily clears the immutable bit before creating the link.
2010-11-16 * Store the size of a store path in the database (to be precise, theEelco Dolstra1-1/+1
size of the NAR serialisation of the path, i.e., `nix-store --dump PATH'). This is useful for Hydra.
2010-06-04 * Applied a patch from David Brown to prevent `nix-store --optimise'Eelco Dolstra1-1/+15
from failing on rename() on BtrFS.
2009-09-24 * And some more.Eelco Dolstra1-0/+1
2009-04-21 * Use foreach in a lot of places.Eelco Dolstra1-2/+2
2008-06-18 * `nix-store --optimise': handle files with >= 32000 hard links.Eelco Dolstra1-6/+31
(There can easily be more than 32000 occurrences of the empty file.)
2008-06-18 * Some refactoring: put the GC options / results in separate structs.Eelco Dolstra1-0/+1
* The garbage collector now also prints the number of blocks freed.
2008-06-09 * Merged the no-bdb branch (-r10900:HEADEelco Dolstra1-0/+129
https://svn.nixos.org/repos/nix/nix/branches/no-bdb).