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2016-04-20 Cache path info lookups in SQLiteEelco Dolstra1-2/+48
This re-implements the binary cache database in C++, allowing it to be used by other Store backends, in particular the S3 backend.
2016-04-19 Move path info caching from BinaryCacheStore to StoreEelco Dolstra1-9/+53
Caching path info is generally useful. For instance, it speeds up "nix path-info -rS /run/current-system" (i.e. showing the closure sizes of all paths in the closure of the current system) from 5.6s to 0.15s. This also eliminates some APIs like Store::queryDeriver() and Store::queryReferences().
2016-04-07 nix verify-paths: Add ‘--sigs-needed <N>’ flagEelco Dolstra1-1/+7
This specifies the number of distinct signatures required to consider each path "trusted". Also renamed ‘--no-sigs’ to ‘--no-trust’ for the flag that disables verifying whether a path is trusted (since a path can also be trusted if it has no signatures, but was built locally).
2016-04-05 Add "nix sign-paths" commandEelco Dolstra1-0/+3
E.g. $ nix sign-paths -k ./secret -r $(type -p geeqie) signs geeqie and all its dependencies using the key in ./secret.
2016-03-24 Move signature support from NarInfo to ValidPathInfoEelco Dolstra1-1/+28
2016-03-24 TyposEelco Dolstra1-2/+2
2016-02-29 Make store implementations pluggableEelco Dolstra1-19/+24
This for instance allows hydra-queue-runner to add the S3 backend at runtime.
2016-02-25 Add NAR / Store accessor abstractionEelco Dolstra1-1/+3
This is primary to allow hydra-queue-runner to extract files like "nix-support/hydra-build-products" from NARs in binary caches.
2016-02-24 Eliminate reserveSpace flagEelco Dolstra1-4/+4
2016-02-24 openStoreAt(): Initialise the binary cacheEelco Dolstra1-1/+3
2016-02-24 Move BinaryCacheStore / LocalBinaryCacheStore from HydraEelco Dolstra1-3/+15
So you can now do: $ NIX_REMOTE=file:///tmp/binary-cache nix-store -qR /nix/store/...
2016-02-16 Rename ValidPathInfo::hash -> narHash for consistencyEelco Dolstra1-2/+2
2016-02-15 Expose the export magic value and move LocalStore::queryReferences to StoreEelco Dolstra1-0/+7
2016-02-15 Add function to extract hash part of a store pathEelco Dolstra1-1/+8
2016-02-11 ref<T>: Add cast operatorEelco Dolstra1-2/+2
2016-02-04 StoreAPI -> StoreEelco Dolstra1-5/+5
Calling a class an API is a bit redundant...
2016-02-04 Eliminate the "store" global variableEelco Dolstra1-8/+5
Also, move a few free-standing functions into StoreAPI and Derivation. Also, introduce a non-nullable smart pointer, ref<T>, which is just a wrapper around std::shared_ptr ensuring that the pointer is never null. (For reference-counted values, this is better than passing a "T&", because the latter doesn't maintain the refcount. Usually, the caller will have a shared_ptr keeping the value alive, but that's not always the case, e.g., when passing a reference to a std::thread via std::bind.)
2016-01-31 Use the daemon when we don't have write access to the Nix databaseEelco Dolstra1-4/+16
2015-08-21 nix-collect-garbage: Revive --max-freedEelco Dolstra1-10/+0
Fixes #609.
2015-07-20 More cleanupEelco Dolstra1-2/+2
2015-07-17 OCD: foreach -> C++11 ranged forEelco Dolstra1-22/+22
2014-08-20 Use proper quotes everywhereEelco Dolstra1-6/+6
2014-03-30 boost::shared_ptr -> std::shared_ptrEelco Dolstra1-4/+4
2013-07-12 Garbage collector: Don't follow symlinks arbitrarilyEelco Dolstra1-4/+1
Only indirect roots (symlinks to symlinks to the Nix store) are now supported.
2012-08-27 Merge branch 'master' into no-manifestsEelco Dolstra1-2/+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).
2012-07-30 Refactor settings processingEelco Dolstra1-8/+8
Put all Nix configuration flags in a Settings object.
2012-05-29 Reserve some disk space for the garbage collectorEelco Dolstra1-2/+2
We can't open a SQLite database if the disk is full. Since this prevents the garbage collector from running when it's most needed, we reserve some dummy space that we can free just before doing a garbage collection. This actually revives some old code from the Berkeley DB days. Fixes #27.
2012-03-26 Remove the --max-links GC optionEelco Dolstra1-1/+0
We don't need this anymore now that current filesystems support more than 32,000 files in a directory.
2011-11-23 * Add an API function exportPaths() that provides the functionality ofEelco Dolstra1-0/+11
‘nix-store --export’. * Add a Perl module that provides the functionality of ‘nix-copy-closure --to’. This is used by build-remote.pl so it no longer needs to start a separate nix-copy-closure process. Also, it uses the Perl API to do the export, so it doesn't need to start a separate nix-store process either. As a result, nix-copy-closure and build-remote.pl should no longer fail on very large closures due to an "Argument list too long" error. (Note that having very many dependencies in a single derivation can still fail because the environment can become too large. Can't be helped though.)
2011-07-20 * Fix a huuuuge security hole in the Nix daemon. It didn't check thatEelco Dolstra1-3/+21
derivations added to the store by clients have "correct" output paths (meaning that the output paths are computed by hashing the derivation according to a certain algorithm). This means that a malicious user could craft a special .drv file to build *any* desired path in the store with any desired contents (so long as the path doesn't already exist). Then the attacker just needs to wait for a victim to come along and install the compromised path. For instance, if Alice (the attacker) knows that the latest Firefox derivation in Nixpkgs produces the path /nix/store/1a5nyfd4ajxbyy97r1fslhgrv70gj8a7-firefox-5.0.1 then (provided this path doesn't already exist) she can craft a .drv file that creates that path (i.e., has it as one of its outputs), add it to the store using "nix-store --add", and build it with "nix-store -r". So the fake .drv could write a Trojan to the Firefox path. Then, if user Bob (the victim) comes along and does $ nix-env -i firefox $ firefox he executes the Trojan injected by Alice. The fix is to have the Nix daemon verify that derivation outputs are correct (in addValidPath()). This required some refactoring to move the hash computation code to libstore.
2010-11-16 * Store the size of a store path in the database (to be precise, theEelco Dolstra1-10/+13
size of the NAR serialisation of the path, i.e., `nix-store --dump PATH'). This is useful for Hydra.
2010-02-22 * Revert r19650 (implement gc-keep-outputs by looking for derivationsEelco Dolstra1-13/+0
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.
2010-01-25 * Make the garbage collector do the right thing when `gc-keep-outputs'Eelco Dolstra1-0/+13
is enabled by not depending on the deriver.
2009-11-20 * Remove the --use-atime / --max-atime garbage collector flags. ManyEelco Dolstra1-2/+0
(Linux) machines no longer maintain the atime because it's too expensive, and on the machines where --use-atime is useful (like the buildfarm), reading the atimes on the entire Nix store takes way too much time to make it practical.
2009-04-21 * Use foreach in a lot of places.Eelco Dolstra1-8/+5
2009-03-26 * Don't use ULLONG_MAX in maxFreed - use 0 to mean "no limit".Eelco Dolstra1-7/+1
18446744073709551615ULL breaks on GCC 3.3.6 (`integer constant is too large for "long" type').
2008-12-04 * Build on Debian 4.0 (GCC 4.1.1).Eelco Dolstra1-1/+1
2008-12-03 * Pass HashType values instead of strings.Eelco Dolstra1-5/+6
2008-12-03 * Unify the treatment of sources copied to the store, and recursiveEelco Dolstra1-27/+84
SHA-256 outputs of fixed-output derivations. I.e. they now produce the same store path: $ nix-store --add x /nix/store/j2fq9qxvvxgqymvpszhs773ncci45xsj-x $ nix-store --add-fixed --recursive sha256 x /nix/store/j2fq9qxvvxgqymvpszhs773ncci45xsj-x the latter being the same as the path that a derivation derivation { name = "x"; outputHashAlgo = "sha256"; outputHashMode = "recursive"; outputHash = "..."; ... }; produces. This does change the output path for such fixed-output derivations. Fortunately they are quite rare. The most common use is fetchsvn calls with SHA-256 hashes. (There are a handful of those is Nixpkgs, mostly unstable development packages.) * Documented the computation of store paths (in store-api.cc).
2008-10-16 * Bug fix for building on some old installations (contributed by Pjotr).Eelco Dolstra1-0/+6
2008-09-17 * GC option `--max-atime' that specifies an upper limit to the lastEelco Dolstra1-0/+1
accessed time of paths that may be deleted. Anything more recently used won't be deleted. The time is specified in time_t, e.g. seconds since 1970-01-01 00:00:00 UTC; use `date +%s' to convert to time_t from the command line. Example: to delete everything that hasn't been used in the last two months: $ nix-store --gc -v --max-atime $(date +%s -d "2 months ago")
2008-09-17 * Garbage collector: added an option `--use-atime' to delete paths inEelco Dolstra1-0/+1
order of ascending last access time. This is useful in conjunction with --max-freed or --max-links to prefer deleting non-recently used garbage, which is good (especially in the build farm) since garbage may become live again. The code could easily be modified to accept other criteria for ordering garbage by changing the comparison operator used by the priority queue in collectGarbage().
2008-08-02 * Make nix-env --dry-run print the paths to be substituted correctlyEelco Dolstra1-7/+0
again. (After the previous substituter mechanism refactoring I didn't update the code that obtains the references of substitutable paths.) This required some refactoring: the substituter programs are now kept running and receive/respond to info requests via stdin/stdout.
2008-06-18 (no commit message)Eelco Dolstra1-1/+1
2008-06-18 * Garbage collector: option `--max-freed' to stop after at least NEelco Dolstra1-0/+11
bytes have been freed, `--max-links' to stop when the Nix store directory has fewer than N hard links (the latter being important for very large Nix stores on filesystems with a 32000 subdirectories limit).
2008-06-09 * Merged the no-bdb branch (-r10900:HEADEelco Dolstra1-2/+15
https://svn.nixos.org/repos/nix/nix/branches/no-bdb).
2008-01-29 * nix-store --dump-db / --load-db to dump/load the Nix DB.Eelco Dolstra1-1/+37
* nix-store --register-validity: option to supply the content hash of each path. * Removed compatibility with Nix <= 0.7 stores.
2007-11-29 * nix-env -e: support uninstalling by path, so that one can sayEelco Dolstra1-0/+20
$ nix-env -e $(which firefox) or $ nix-env -e /nix/store/nywzlygrkfcgz7dfmhm5xixlx1l0m60v-pan-0.132 * nix-env -i: if an argument contains a slash anywhere, treat it as a path and follow it through symlinks into the Nix store. This allows things like $ nix-build -A firefox $ nix-env -i ./result * nix-env -q/-i/-e: don't complain when the `*' selector doesn't match anything. In particular, `nix-env -q \*' doesn't fail anymore on an empty profile.
2007-08-12 * Get rid of the substitutes database table (NIX-47). Instead, if weEelco Dolstra1-1/+20
need any info on substitutable paths, we just call the substituters (such as download-using-manifests.pl) directly. This means that it's no longer necessary for nix-pull to register substitutes or for nix-channel to clear them, which makes those operations much faster (NIX-95). Also, we don't have to worry about keeping nix-pull manifests (in /nix/var/nix/manifests) and the database in sync with each other. The downside is that there is some overhead in calling an external program to get the substitutes info. For instance, "nix-env -qas" takes a bit longer. Abolishing the substitutes table also makes the logic in local-store.cc simpler, as we don't need to store info for invalid paths. On the downside, you cannot do things like "nix-store -qR" on a substitutable but invalid path (but nobody did that anyway). * Never catch interrupts (the Interrupted exception).
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