lix -

Age	Commit message (Collapse)	Author
2004-08-20	* Setuid support for sharing a Nix installation between multiple	Eelco Dolstra
	users. If the configure flag `--enable-setuid' is used, the Nix programs nix-env, nix-store, etc. are installed with the setuid bit turned on so that they are executed as the user and group specified by `--with-nix-user=USER' and `--with-nix-group=GROUP', respectively (with defaults `nix' and `nix'). The setuid programs drop all special privileges if they are executed by a user who is not a member of the Nix group. The setuid feature is a quick hack to enable sharing of a Nix installation between users who trust each other. It is not generally secure, since any user in the Nix group can modify (by building an appropriate derivation) any object in the store, and for instance inject trojans into binaries used by other users. The setuid programs are owned by root, not the Nix user. This is because on Unix normal users cannot change the real uid, only the effective uid. Many programs don't work properly when the real uid differs from the effective uid. For instance, Perl will turn on taint mode. However, the setuid programs drop all root privileges immediately, changing all uids and gids to the Nix user and group.
2004-08-18	* The default verbosity level of all Nix commands is now lvlInfo.	Eelco Dolstra
	* Builder output is written to standard error by default. * The option `-B' is gone. * The option `-Q' suppresses builder output. The result of this is that most Nix invocations shouldn't need any flags w.r.t. logging.
2004-08-11	* The predecessor of a successor need not be present. This in	Eelco Dolstra
	particular happens on distributed builds or when using push/pull.
2004-08-05	* Clean up the temporary directory for hook communication (and don't	Eelco Dolstra
	print out incorrect "build failed" messages).
2004-08-04	* Every real language has a `map' function.	Eelco Dolstra

2004-08-04	* Allow primops with more that 1 arguments.	Eelco Dolstra

2004-08-04	* Creating a file nix-support/no-scan in the output path of a	Eelco Dolstra
	derivation disables scanning for dependencies. Use at your own risk. This is a quick hack to speed up UML image generation (image are very big, say 1 GB). It would be better if the scanner were faster, and didn't read the whole file into memory.
2004-07-06	* Fixed format string error.	Eelco Dolstra

2004-07-01	* Don't go into a (sometimes infinite) loop calling the build hook.	Eelco Dolstra

2004-07-01	* Nix-instantiate now accepts sets of derivations (just like nix-env).	Eelco Dolstra

2004-07-01	* Nix-env operations now by default filter out any derivations for	Eelco Dolstra
	system types other than the current system. I.e., `nix-env -i' won't install derivations for other system types, and `nix-env -q' won't show them. The flag `--system-filter SYSTEM' can be used to override the system type used for filtering (but not for building!). The value `*' can be used not to filter anything.
2004-07-01	* Align the columns in the output of `nix-env -q'.	Eelco Dolstra

2004-07-01	* Allow the system attribute of derivations to be queried in	Eelco Dolstra
	`nix-env -q'. * Queries can now be combined, e.g., `nix-env -q --status --system'.
2004-07-01	* Include some missing headers.	Eelco Dolstra

2004-06-29	* Write build logs to disk again.	Eelco Dolstra

2004-06-28	* By default, `nix-env -i' now deletes previously installed	Eelco Dolstra
	derivations with names matching the derivations being installed. The option `--preserve-installed / -P' overrides this behaviour.
2004-06-28	* In a realisation goal, check the result of the corresponding	Eelco Dolstra
	normalisation goal.
2004-06-28	* `nix-env -u' now allows a specific version to be specified when	Eelco Dolstra
	upgrading. This fixes a bug reported by Martin: $ nix-env -i foo-1.0 $ nix-env -u foo-1.0 upgrading foo-1.0 to foo-1.1
2004-06-28	* Added a switch `--fallback'. From the manual:	Eelco Dolstra
	Whenever Nix attempts to realise a derivation for which a closure is already known, but this closure cannot be realised, fall back on normalising the derivation. The most common scenario in which this is useful is when we have registered substitutes in order to perform binary distribution from, say, a network repository. If the repository is down, the realisation of the derivation will fail. When this option is specified, Nix will build the derivation instead. Thus, binary installation falls back on a source installation. This option is not the default since it is generally not desirable for a transient failure in obtaining the substitutes to lead to a full build from source (with the related consumption of resources).
2004-06-25	* A flag `--keep-going / -k' to keep building goals if one fails, as	Eelco Dolstra
	much as possible. (This is similar to GNU Make's `-k' flag.) * Refactoring to implement this: previously we just bombed out when a build failed, but now we have to clean up. In particular this means that goals must be freed quickly --- they shouldn't hang around until the worker exits. So the worker now maintains weak pointers in order not to prevent garbage collection. * Documented the `-k' and `-j' flags.
2004-06-25	* Don't throw an exception when a build fails. Just terminate the	Eelco Dolstra
	goal and allow the problem to be handled elsewhere (e.g., at top-level).
2004-06-24	* Obsolete.	Eelco Dolstra

2004-06-24	* Multiple and/or failing substitutes now work.	Eelco Dolstra

2004-06-22	* Arghhhhhh	Eelco Dolstra

2004-06-22	* Some more diagnostics changes.	Eelco Dolstra

2004-06-22	* Well, it's better than printf.	Eelco Dolstra

2004-06-22	* Started making Nix's diagnostic messages a bit more useful.	Eelco Dolstra

2004-06-22	* Put WEXITSTATUS stuff somewhere else.	Eelco Dolstra

2004-06-22	* Reduce gratuitous cut & pasting.	Eelco Dolstra

2004-06-22	* Wrapper class around pids.	Eelco Dolstra

2004-06-22	* Substitutes should occupy a build slot.	Eelco Dolstra

2004-06-22	* Refactoring.	Eelco Dolstra

2004-06-21	* Remove debug output.	Eelco Dolstra

2004-06-21	* Acquire a lock on the output path when running a substitute. Also	Eelco Dolstra
	delete obstructing invalid paths.
2004-06-21	* Ugh, nasty Heisenbug due to an uninitialiased variable. The bug	Eelco Dolstra
	only caused a crash if the program was not invoked with a high verbosity level.
2004-06-21	* Remove obstructing invalid store paths add[Text]ToStore().	Eelco Dolstra

2004-06-21	* Wrap calls to registerSubstitute() in a single transaction to	Eelco Dolstra
	improve throughput. * Don't build the `substitute-rev' table for now, since it caused Theta(N^2) time and log file consumption when adding N substitutes. Maybe we can do without it.
2004-06-21	* Disable calls to fsync() since Berkeley DB's DB_TXN_WRITE_NOSYNC	Eelco Dolstra
	flag doesn't seem to work as advertised.
2004-06-20	* Re-enable support for substitutes in the normaliser.	Eelco Dolstra
	* A better substitute mechanism. Instead of generating a store expression for each store path for which we have a substitute, we can have a single store expression that builds a generic program that is invoked to build the desired store path, which is passed as an argument. This means that operations like `nix-pull' only produce O(1) files instead of O(N) files in the store when registering N substitutes. (It consumes O(N) database storage, of course, but that's not a performance problem). * Added a test for the substitute mechanism. * `nix-store --substitute' reads the substitutes from standard input, instead of from the command line. This prevents us from running into the kernel's limit on command line length.
2004-06-20	* Refactoring.	Eelco Dolstra

2004-06-19	* Re-enable build hooks.	Eelco Dolstra

2004-06-18	* Big refactoring. Move to a much more explicitly state machine based	Eelco Dolstra
	approach. This makes it much easier to add extra complexity in the normaliser / realiser (e.g., build hooks, substitutes).
2004-06-18	* This is also useful.	Eelco Dolstra

2004-06-18	* Shared (garbage collecting) pointers. Copied from Boost.	Eelco Dolstra

2004-06-15	* Refactoring.	Eelco Dolstra

2004-06-08	* Cleanup.	Eelco Dolstra

2004-05-18	* Drain the output of the build hook to show error messages. Ugly	Eelco Dolstra
	hack.
2004-05-18	* setpgrp() is not POSIX (and on Mac OS X it's different than on	Eelco Dolstra
	Linux), so use setpgid().
2004-05-14	* execl() requires a terminating 0.	Eelco Dolstra
	* When a fast build wakes up a goal, try to start that goal in the same iteration of the startBuild() loop of run(). Otherwise no job might be started until the next job terminates.
2004-05-13	* Distributed builds and load balancing now seem to work pretty well.	Eelco Dolstra
	(Though the `build-remote.pl' script has a gigantic race condition).