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2012-10-03 nix-env: Support ‘--repair’ flagEelco Dolstra1-2/+4
2012-10-03 Add a ‘--repair’ flag to nix-instantiateEelco Dolstra7-21/+25
This allows repairing corrupted derivations and other source files.
2012-10-03 Handle repairing paths that are in build-chroot-dirsEelco Dolstra1-0/+7
2012-10-03 When repairing a derivation, check and repair the entire output closureEelco Dolstra3-6/+91
If we find a corrupted path in the output closure, we rebuild the derivation that produced that particular path.
2012-10-02 Add a --repair flag to ‘nix-store -r’ to repair derivation outputsEelco Dolstra6-63/+113
With this flag, if any valid derivation output is missing or corrupt, it will be recreated by using a substitute if available, or by rebuilding the derivation. The latter may use hash rewriting if chroots are not available.
2012-10-02 nix-store --verify: Add an option ‘--repair’ to repair all ↵Eelco Dolstra2-8/+24
missing/corrupt paths Also, return a non-zero exit code if errors remain after verifying/repairing.
2012-10-02 Add operation ‘nix-store --repair-path’Eelco Dolstra2-28/+71
This operation allows fixing corrupted or accidentally deleted store paths by redownloading them using substituters, if available. Since the corrupted path cannot be replaced atomically, there is a very small time window (one system call) during which neither the old (corrupted) nor the new (repaired) contents are available. So repairing should be used with some care on critical packages like Glibc.
2012-09-28 Handle octal escapes in /proc/self/mountinfoEelco Dolstra1-2/+3
2012-09-28 Print a more descriptive error message if setting up the build environment failsEelco Dolstra1-3/+14
2012-09-25 Make the store writable before creating /nix/store/.linksEelco Dolstra1-2/+1
2012-09-25 Merge branch 'readonly-store'Eelco Dolstra6-99/+92
2012-09-25 Include <sys/types.h> for off_tEelco Dolstra1-0/+1
Reported by "gio" on IRC.
2012-09-19 Remove setting of the immutable bitEelco Dolstra3-70/+33
Using the immutable bit is problematic, especially in conjunction with store optimisation. For instance, if the garbage collector deletes a file, it has to clear its immutable bit, but if the file has additional hard links, we can't set the bit afterwards because we don't know the remaining paths. So now that we support having the entire Nix store as a read-only mount, we may as well drop the immutable bit. Unfortunately, we have to keep the code to clear the immutable bit for backwards compatibility.
2012-09-19 Support having /nix/store as a read-only bind mountEelco Dolstra2-0/+41
It turns out that the immutable bit doesn't work all that well. A better way is to make the entire Nix store a read-only bind mount, i.e. by doing $ mount --bind /nix/store /nix/store $ mount -o remount,ro,bind /nix/store (This would typically done in an early boot script, before anything from /nix/store is used.) Since Nix needs to be able to write to the Nix store, it now detects if /nix/store is a read-only bind mount and then makes it writable in a private mount namespace.
2012-09-19 Templatise tokenizeString()Eelco Dolstra4-29/+18
2012-09-18 Keep build directory if not all expected outputs were producedEelco Dolstra1-3/+3
Fixes issue #123 in Nixpkgs.
2012-09-13 RemoteStore::connectToDaemon(): Set close-on-exec flagEelco Dolstra1-0/+1
This ensures that "nix-build --run-env" doesn't keep a connection to the worker open, preventing it from exiting.
2012-09-13 Vacuum the SQLite DB after running the garbage collectorEelco Dolstra3-0/+12
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
2012-09-13 Disable auto store optimisation for nowEelco Dolstra1-1/+1
I've seen operations like "nix-store --import" take much longer on one system. So default to off until I've investigated this a bit further.
2012-09-13 In startBuilder(), only print the new paths we're buildingEelco Dolstra1-2/+3
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.
2012-09-12 Build hook: Pass the timeout to the remote builderEelco Dolstra1-1/+1
Note that this will only work if the client has a very recent Nix version (post 15e1b2c223494ecb5efefc3ea0e3b926a6b1d7dc), otherwise the --option flag will just be ignored. Fixes #50.
2012-09-11 Fix "non-zero padding" errorEelco Dolstra1-1/+2
Probably it's not a good idea to pass a temporary object to StringSource.
2012-09-11 Support building a derivation if some outputs are already valid (non-chroot ↵Eelco Dolstra1-11/+67
case) This uses scary hash rewriting. Fixes #21.
2012-09-11 Remove debug lineEelco Dolstra1-3/+1
2012-09-11 Support building a derivation if some outputs are already validEelco Dolstra1-12/+16
This handles the chroot and build hook cases, which are easy. Supporting the non-chroot-build case will require more work (hash rewriting!). Issue #21.
2012-09-11 Include config.h before any other headerEelco Dolstra1-2/+2
"config.h" must be included first, because otherwise the compiler might not see the right value of _FILE_OFFSET_BITS. We've had this before; see 705868a8a96a10f70e629433cfffc2d5cd2703eb. In this case, GCC would compute a different address for ‘settings.useSubstitutes’ in misc.cc because of the off_t in ‘settings’. Reverts 3854fc9b42d16b810f62b64194b699033b03aaf1. http://hydra.nixos.org/build/3016700
2012-08-27 Fix stupid type error in calling std::maxEelco Dolstra1-1/+1
2012-08-27 Merge branch 'master' into no-manifestsEelco Dolstra7-64/+103
2012-08-20 Check if MS_PRIVATE is definedEelco Dolstra1-1/+1
http://hydra.nixos.org/build/2955671
2012-08-20 In the chroot, make all mounted filesystems privateEelco Dolstra1-0/+18
This is required on systemd, which mounts filesystems as "shared" subtrees. Changes to shared trees in a private mount namespace are propagated to the outside world, which is bad.
2012-08-20 Don't bind-mount /proc since we mount our ownEelco Dolstra1-2/+2
2012-08-19 Fix 1755 permission on temporary directories left behind by ‘-K’Eelco Dolstra1-4/+4
2012-08-07 Don't warn about maximum link count exceeded on 0-byte filesEelco Dolstra1-2/+4
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".
2012-08-05 Fix race condition when two processes create a hard link to a file in .linksEelco Dolstra1-27/+37
This is a problem because one process may set the immutable bit before the second process has created its link. Addressed random Hydra failures such as: error: cannot rename `/nix/store/.tmp-link-17397-1804289383' to `/nix/store/rsvzm574rlfip3830ac7kmaa028bzl6h-nixos-0.1pre-git/upstart-interface-version': Operation not permitted
2012-08-05 Fix race condition when two processes create the same link in /nix/store/.linksEelco Dolstra1-4/+4
2012-08-01 Count bytes freed deleting unused linksEelco Dolstra2-3/+5
2012-08-01 Drop the block count in the garbage collectorEelco Dolstra5-16/+9
2012-08-01 nix-store --gc: Make ‘--max-freed 0’ do the right thingEelco Dolstra3-6/+5
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
2012-08-01 Merge branch 'master' into no-manifestsEelco Dolstra1-1/+4
2012-08-01 DohEelco Dolstra1-1/+2
2012-08-01 Make ‘nix-store --optimise’ interruptibleEelco Dolstra1-0/+2
2012-08-01 Report substituter errors to clients of the Nix daemonEelco Dolstra2-22/+38
2012-07-31 Prevent an injection attack in passing untrusted options to substitutersEelco Dolstra1-0/+4
2012-07-31 Pass all --option flags to the daemonEelco Dolstra3-3/+22
2012-07-31 Add an option ‘build-fallback’ (equivalent to the --fallback flag)Eelco Dolstra1-1/+2
2012-07-30 Refactor settings processingEelco Dolstra11-428/+475
Put all Nix configuration flags in a Settings object.