depot - monorepo for the virus lounge

Age	Commit message (Collapse)	Author	Files	Lines
2011-12-16	* importPath() -> importPaths(). Because of buffering of the input	Eelco Dolstra	1	-2/+15
	stream it's now necessary for the daemon to process the entire sequence of exported paths, rather than letting the client do it.
2011-12-16	* Make the import operation through the daemon much more efficient	Eelco Dolstra	1	-3/+4
	(way fewer roundtrips) by allowing the client to send data in bigger chunks. * Some refactoring.
2011-12-15	* Refactoring: move sink/source buffering into separate classes.	Eelco Dolstra	1	-6/+3
	* Buffer the HashSink. This speeds up hashing a bit because it prevents lots of calls to the hash update functions (e.g. nix-hash went from 9.3s to 8.7s of user time on the closure of my /var/run/current-system).
2011-12-05	* Remove unnecessary quotes. showPaths() already adds quotes.	Eelco Dolstra	1	-1/+1

2011-12-02	* In ‘nix-store --verify --check-contents’, repair missing hashes	Eelco Dolstra	1	-4/+20
	rather than complain about them.
2011-11-23	* Add an API function exportPaths() that provides the functionality of	Eelco Dolstra	1	-1/+1
	‘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.)
2011-11-07	* Boldly make SQLite WAL mode the default again. Hopefully the	Eelco Dolstra	1	-4/+3
	intermittent problems are gone by now. WAL mode is preferrable because it does way fewer fsyncs.
2011-09-12	* Ouch. A store upgrade could cause a substituter to be triggered,	Eelco Dolstra	1	-3/+3
	causing a deadlock.
2011-08-31	* Eliminate all uses of the global variable ‘store’ from libstore.	Eelco Dolstra	1	-1/+1
	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.
2011-07-20	* Fix a huuuuge security hole in the Nix daemon. It didn't check that	Eelco Dolstra	1	-0/+51
	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.
2010-12-17	* Do a short sleep after SQLITE_BUSY.	Eelco Dolstra	1	-0/+11

2010-12-14	* I forgot to catch SQLiteBusy in registerValidPaths(). So	Eelco Dolstra	1	-38/+31
	registerValidPaths() now handles busy errors and registerValidPath() is simply a wrapper around it.
2010-12-13	* Create /nix/var/nix/db if it's missing.	Eelco Dolstra	1	-0/+1

2010-12-08	* Ignore the result of sqlite3_reset().	Eelco Dolstra	1	-3/+4

2010-12-06	* `nix-store --verify --check-contents': don't hold the global GC lock	Eelco Dolstra	1	-11/+46
	while checking the contents, since this operation can take a very long time to finish. Also, fill in missing narSize fields in the DB while doing this.
2010-12-05	* Retry a transaction if SQLite returns SQLITE_BUSY. This can happen	Eelco Dolstra	1	-61/+83
	even with a very long busy timeout, because SQLITE_BUSY is also returned to resolve deadlocks. This should get rid of random "database is locked" errors. This is kind of hard to test though. * Fix a horrible bug in deleteFromStore(): deletePathWrapped() should be called after committing the transaction, not before, because the commit might not succeed.
2010-11-17	* Before a build, show the disk space that the downloaded store paths	Eelco Dolstra	1	-0/+1
	will approximately require.
2010-11-17	* Add an operation `nix-store -q --size'.	Eelco Dolstra	1	-2/+12

2010-11-16	* Store the size of a store path in the database (to be precise, the	Eelco Dolstra	1	-26/+46
	size of the NAR serialisation of the path, i.e., `nix-store --dump PATH'). This is useful for Hydra.
2010-10-14	* Wrap deleteFromStore() in a transaction. Otherwise there might be a	Eelco Dolstra	1	-5/+8
	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.
2010-09-01	* Only do "pragma journal_mode = ..." if the current journal mode	Eelco Dolstra	1	-1/+10
	differs from the desired mode. There is an open SQLite ticket `Executing "PRAGMA journal_mode" may delete journal file while it is in use.'
2010-08-31	`nix-store --verify' improvements:	Eelco Dolstra	1	-16/+53
	* 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.
2010-08-24	* Don't complain if the stored hash of a path is zero (unknown).	Eelco Dolstra	1	-2/+3

2010-08-04	* Use SQLite 3.7.0's write-ahead logging (WAL mode). This is a lot	Eelco Dolstra	1	-2/+12
	faster than the old mode when fsyncs are enabled, because it only performs an fsync() when doing a checkpoint, rather than at every commit. Some timings for doing a "nix-instantiate /etc/nixos/nixos -A system" after modifying the stdenv setup script: 42.5s - SQLite 3.6.23 with truncate mode and fsync 3.4s - SQLite 3.6.23 with truncate mode and no fsync 32.1s - SQLite 3.7.0 with truncate mode and fsync 16.8s - SQLite 3.7.0 with WAL mode and fsync, auto-checkpoint every 1000 pages 8.3s - SQLite 3.7.0 with WAL mode and fsync, auto-checkpoint every 8192 pages 1.7s - SQLite 3.7.0 with WAL mode and no fsync The default is now to use WAL mode with fsyncs. Because WAL doesn't work on remote filesystems such as NFS (as it uses shared memory), truncate mode can be re-enabled by setting the "use-sqlite-wal" option to false.
2010-06-21	* Okay, putting a lock on the temporary directory used by importPath()	Eelco Dolstra	1	-6/+18
	doesn't work because the garbage collector doesn't actually look at locks. So r22253 was stupid. Use addTempRoot() instead. Also, locking the temporary directory in exportPath() was silly because it isn't even in the store.
2010-06-21	* Sync with the trunk.	Eelco Dolstra	1	-0/+4

2010-06-14	* In importPath() and exportPath(), lock the temporary directory to	Eelco Dolstra	1	-0/+4
	prevent it from being deleted by the garbage collector.
2010-06-08	* Replacing ValidPath rows doesn't work because it causes a constraint	Eelco Dolstra	1	-2/+5
	violation of the Refs table. So don't do that.
2010-05-12	* Sync with the trunk.	Eelco Dolstra	1	-4/+1

2010-04-26	* Added a command `nix-store --clear-failed-paths <PATHS>' to clear	Eelco Dolstra	1	-0/+17
	the "failed" status of the given store paths. The special value `*' clears all failed paths.
2010-04-26	* Add an command `nix-store --query-failed-paths' to list the cached	Eelco Dolstra	1	-0/+21
	failed paths (when using the `build-cache-failure' option).
2010-04-19	* Don't use the ATerm library for parsing/printing .drv files.	Eelco Dolstra	1	-2/+0

2010-03-10	* Remove a debug statement.	Eelco Dolstra	1	-1/+0

2010-03-09	* In `nix-store --export', abort if the contents of a path has	Eelco Dolstra	1	-6/+17
	changed. This prevents corrupt paths from spreading to other machines. Note that checking the hash is cheap because we're hashing anyway (because of the --sign feature).
2010-03-08	* Increase the sqlite timeout.	Eelco Dolstra	1	-1/+1

2010-03-02	* checkInterrupt() shouldn't be called from a destructor.	Eelco Dolstra	1	-1/+1

2010-02-24	* Support read-only access to the database.	Eelco Dolstra	1	-1/+5

2010-02-24	* Refactor the upgrade / database initialisation logic a bit.	Eelco Dolstra	1	-56/+61

2010-02-24	* Don't use fdatasync since it doesn't work on Snow Leopard.	Eelco Dolstra	1	-2/+2
	* Don't refer to config.h in util.hh, because config.h is not installed (http://hydra.nixos.org/build/303053).
2010-02-24	* A function to query just the database id of a valid path.	Eelco Dolstra	1	-16/+20

2010-02-24	* Use `truncate' journal mode, which should be a bit faster.	Eelco Dolstra	1	-0/+4

2010-02-24	* Disable fsync() in SQLite if the fsync-metadata option is set to	Eelco Dolstra	1	-5/+7
	false. * Change the default for `fsync-metadata' to true. * Disable `fsync-metadata' in `make check'.
2010-02-24	* Do registerValidPaths() in one transaction, which is much faster.	Eelco Dolstra	1	-29/+9
	E.g. it cuts the runtime of the referrers test from 50s to 23s.
2010-02-24	* Use normal (rather than full) synchronous mode, which I gather from	Eelco Dolstra	1	-0/+4
	the description at http://www.sqlite.org/atomiccommit.html should be safe enough.
2010-02-22	(no commit message)	Eelco Dolstra	1	-4/+0

2010-02-22	* The database needs a trigger to get rid of self-references to	Eelco Dolstra	1	-2/+10
	prevent a foreign key constraint violation on the Refs table when deleting a path.
2010-02-22	* Get derivation outputs from the database instead of the .drv file,	Eelco Dolstra	1	-0/+24
	which requires more I/O.
2010-02-22	* Revert r19650 (implement gc-keep-outputs by looking for derivations	Eelco Dolstra	1	-0/+24
	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.
2010-02-22	* Put the derivation outputs in the database. This is useful for the	Eelco Dolstra	1	-2/+24
	garbage collector.
2010-02-19	* Foreign key support in SQLite is not a persistent setting, so enable	Eelco Dolstra	1	-2/+19
	it at startup. * Implement negative caching. Now `make check' passes.