depot - monorepo for the virus lounge

Age	Commit message (Collapse)	Author	Files	Lines
2005-02-15	* And yet another installation source: the ability to copy user	Eelco Dolstra	1	-34/+46
	environment elements from one user environment to another, e.g., $ nix-env -i --from-profile /nix/var/nix/profiles/other-profile aterm copies the `aterm' component installed in the `other-profile' to the user's current profile.
2005-02-14	* It is now possible to add store derivations or paths directly to a	Eelco Dolstra	4	-10/+52
	user environment, e.g., $ nix-env -i /nix/store/z58v41v21xd3ywrqk1vmvdwlagjx7f10-aterm-2.3.1.drv or $ nix-env -i /nix/store/hsyj5pbn0d9iz7q0aj0fga7cpaadvp1l-aterm-2.3.1 This is useful because it allows Nix expressions to be bypassed entirely. For instance, if only a nix-pull manifest is provided, plus the top-level path of some component, it can be installed without having to supply the Nix expression (e.g., for obfuscation, or to be independent of Nix expression language changes or context dependencies).
2005-02-14	* Added an installation source `--from-expression' (or `-E') to	Eelco Dolstra	1	-8/+22
	install derivations from a Nix expression specified on the command line. This is particularly useful for disambiguation if there are multiple derivations with the same name. For instance, in Nixpkgs, to install the Firefox wrapper rather than the plain Firefox component: $ nix-env -f .../i686-linux.nix -i -E 'x: x.firefoxWrapper' The Nix expressions should be functions to which the default Nix expression (in this case, `i686-linux.nix') is passed, hence `x: ...'. This might also be a nice way to deal with high-level (user-level) variability, e.g., $ nix-env -f ./server.nix -i -E 'x: x {port = 8080; ssl = false;}'
2005-02-14	* Refactoring. Hope this doesn't break the semantics of `-u' ;-)	Eelco Dolstra	3	-163/+171

2005-02-14	* Implement the `gc-keep-derivations' global configuretion flag.	Eelco Dolstra	1	-1/+14

2005-02-14	* Global configuration option `env-keep-derivations' to store pointer	Eelco Dolstra	4	-34/+52
	to derivations in user environments. Nice for developers (since it prevents build-time-only dependencies from being GC'ed, in conjunction with `gc-keep-outputs'). Turned off by default.
2005-02-14	* Don't keep the derivation symlink when creating profile generations.	Eelco Dolstra	1	-11/+6

2005-02-14	* Type error in constructor call (caught by GCC 3.3, but not 3.4!).	Eelco Dolstra	1	-1/+1

2005-02-11	* Refactoring to support different installation sources in nix-env.	Eelco Dolstra	5	-61/+125
	* Set the references for the user environment manifest properly. * Don't copy the manifest (this was accidental). * Don't store derivation paths in the manifest (maybe this should be made optional). This cleans up the semantics of nix-env, which were weird. * Hash on the output paths of activated components, not on derivation paths. This is because we don't know the derivation path of already installed components anymore, and it allows the installation of components by store path (skipping Nix expressions entirely). * Query options `--out-path' and `--drv-path' to show the output and derivation paths of components, respectively (the latter replaces the `--expr' query).
2005-02-11	* Input sources should be in the set of all referenceable paths too.	Eelco Dolstra	2	-6/+6

2005-02-09	* Commit more often to prevent out-of-memory errors.	Eelco Dolstra	3	-4/+22

2005-02-09	* Propagate the deriver of a path through the substitute mechanism.	Eelco Dolstra	4	-7/+19
	* Removed some dead code (successor stuff) from nix-push. * Updated terminology in the tests (store expr -> drv path). * Check that the deriver is set properly in the tests.
2005-02-09	* Automatically upgrade <= 0.7 Nix stores to the new schema (so that	Eelco Dolstra	8	-23/+154
	existing user environments continue to work). * `nix-store --verify': detect incomplete closures.
2005-02-08	* Subflag in `--verify': `nix-store --verify --check-contents' checks	Eelco Dolstra	3	-11/+47
	that the contents of store paths has not changed by comparing hashes of their current contents to the hashes stored in the database.
2005-02-08	* Updated `nix-store --verify' to the new schema.	Eelco Dolstra	6	-26/+106

2005-02-07	* `nix-store -qb' to query derivation environment bindings. Useful	Eelco Dolstra	4	-16/+60
	for finding build-time dependencies (possibly after a build). E.g., $ nix-store -qb aterm $(nix-store -qd $(which strc)) /nix/store/jw7c7s65n1gwhxpn35j9rgcci6ilzxym-aterm-2.3.1 * Arguments to nix-store can be files within store objects, e.g., /nix/store/jw7c...-aterm-2.3.1/bin/baffle. * Idem for garbage collector roots.
2005-02-07	* Maintain a database table (`derivers') that maps output paths to the	Eelco Dolstra	4	-13/+74
	derivation that produced them. * `nix-store -qd PATH' prints out the derivation that produced a path.
2005-02-01	* A GC setting `gc-keep-outputs' to specify whether output paths of	Eelco Dolstra	7	-7/+102
	derivations should be kept.
2005-02-01	* Move root finding from `nix-collect-garbage' to `nix-store --gc'.	Eelco Dolstra	3	-29/+74
	This was necessary becase root finding must be done after acquisition of the global GC lock. This makes `nix-collect-garbage' obsolete; it is now just a wrapper around `nix-store --gc'. * Automatically remove stale GC roots (i.e., indirect GC roots that point to non-existent paths).
2005-02-01	* nix-build: use an indirection scheme to make it easier for users to	Eelco Dolstra	6	-32/+72
	get rid of GC roots. Nix-build places a symlink `result' in the current directory. Previously, removing that symlink would not remove the store path being linked to as a GC root. Now, the GC root created by nix-build is actually a symlink in `/nix/var/nix/gcroots/auto' to `result'. So if that symlink is removed the GC root automatically becomes invalid (since it can no longer be resolved). The root itself is not automatically removed - the garbage collector should delete dangling roots.
2005-02-01	* nix-store, nix-instantiate: added an option `--add-root' to	Eelco Dolstra	10	-15/+156
	immediately add the result as a permanent GC root. This is the only way to prevent a race with the garbage collector. For instance, the old style ln -s $(nix-store -r $(nix-instantiate foo.nix)) \ /nix/var/nix/gcroots/result has two time windows in which the garbage collector can interfere (by GC'ing the derivation and the output, respectively). On the other hand, nix-store --add-root /nix/var/nix/gcroots/result -r \ $(nix-instantiate --add-root /nix/var/nix/gcroots/drv \ foo.nix) is safe. * nix-build: use `--add-root' to prevent GC races.
2005-02-01	* Add missing files to dist.	Eelco Dolstra	2	-3/+8
	* Fix GC and substitute bugs related to self-references. Add a regression test.
2005-01-31	* Acquire a global GC lock to prevent new temporary root files from	Eelco Dolstra	1	-15/+29
	being created after the garbage collector has read the temproots directory. This blocks the creation of new processes, but the garbage collector could periodically release the GC lock to allow them to run.
2005-01-31	* Add a test for a more subtle race: a process starting after the	Eelco Dolstra	1	-2/+20
	temporary root files have been read but creating outputs before the store directory has been read.
2005-01-31	* Automatically remove temporary root files.	Eelco Dolstra	3	-1/+30

2005-01-31	* Topologically sort paths under the references relation to ensure	Eelco Dolstra	3	-39/+84
	that they are deleted in an order that maintains the closure invariant. * Presence of a path in a temporary roots file does not imply that all paths in its closure are also present, so add the closure.
2005-01-31	* Don't delete active lock files.	Eelco Dolstra	3	-4/+31

2005-01-31	* Start of concurrent garbage collection. Processes write temporary	Eelco Dolstra	6	-102/+178
	roots to a per-process temporary file in /nix/var/nix/temproots while holding a write lock on that file. The garbage collector acquires read locks on all those files, thus blocking further progress in other Nix processes, and reads the sets of temporary roots.
2005-01-28	* Use NIX_STORE environment variable to locate the store (in addition	Eelco Dolstra	1	-1/+1
	to NIX_STORE_DIR) so that Nix invocations in builders in `make check' work correctly if the store doesn't exist.
2005-01-28	* Only invalidate paths when they are in fact valid.	Eelco Dolstra	1	-1/+2

2005-01-27	* Missing dependency; only a problem when building from Subversion.	Eelco Dolstra	1	-1/+1

2005-01-27	* Fix deadlock.	Eelco Dolstra	1	-1/+1

2005-01-27	* Update referers mappings when updating/clearing the references	Eelco Dolstra	1	-7/+27
	mapping. * Do things in the right order in invalidatePath().
2005-01-27	* Fix and simplify the garbage collector (it's still not concurrent,	Eelco Dolstra	8	-76/+102
	though). In particular it's now much easier to register a GC root. Just place a symlink to whatever store path it is that you want to keep in /nix/var/nix/gcroots.
2005-01-27	* Make lock removal safe by signalling to blocked processes that the	Eelco Dolstra	4	-24/+55
	lock they are waiting on has become stale (we do this by writing a meaningless token to the unlinked file).
2005-01-25	* Maintain the references/referers relation also for derivations.	Eelco Dolstra	8	-82/+84
	This simplifies garbage collection and `nix-store --query --requisites' since we no longer need to treat derivations specially. * Better maintaining of the invariants, e.g., setReferences() can only be called on a valid/substitutable path.
2005-01-25	* Simplification: registerSubstitutes -> registerSubstitute. We no	Eelco Dolstra	4	-24/+12
	longer need the former since there we no longer have the substitutes-rev table (which triggered a O(n^2) cost in updating them).
2005-01-25	* Really fix the substitute mechanism, i.e., ensure the closure	Eelco Dolstra	3	-12/+45
	invariant by registering references through the manifest. * Added a test for nix-pull.
2005-01-25	* Fix the `--fallback' switch.	Eelco Dolstra	1	-0/+6
	* Fix the substitutes tests.
2005-01-25	* Fix the build hook mechanism; pass the pointer graph to the hook.	Eelco Dolstra	1	-2/+24

2005-01-25	* In nix-store: added query `--referers-closure' that returns the	Eelco Dolstra	4	-9/+27
	closure of the referers relation rather than the references relation, i.e., the set of all paths that directly or indirectly refer to the given path. Note that contrary to the references closure this set is not fixed; it can change as paths are added to or removed from the store.
2005-01-25	* In nix-store: change `--build' back to `--realise'. Also brought	Eelco Dolstra	3	-49/+93
	back the query flag `--force-realise'. * Fixed some of the tests.
2005-01-20	* Terminology fixes.	Eelco Dolstra	5	-22/+22

2005-01-20	* Ensure that derivation names and sources don't end in `.drv'.	Eelco Dolstra	1	-16/+8

2005-01-20	* Another change to low-level derivations. The last one this year, I	Eelco Dolstra	7	-32/+70
	promise :-) This allows derivations to specify on what output paths of input derivations they are dependent. This helps to prevent unnecessary downloads. For instance, a build might be dependent on the `devel' and `lib' outputs of some library component, but not the `docs' output.
2005-01-19	* Nix-store queries `--references' and `referers' to query the pointer	Eelco Dolstra	3	-18/+33
	graph. That is, `nix-store --query --references PATH' shows the set of paths referenced by PATH, and `nix-store --query --referers PATH' shows the set of paths referencing PATH.
2005-01-19	* Renamed `normalise.cc' -> `build.cc', `storeexprs.cc' ->	Eelco Dolstra	19	-98/+128
	`derivations.cc', etc. * Store the SHA-256 content hash of store paths in the database after they have been built/added. This is so that we can check whether the store has been messed with (a la `rpm --verify'). * When registering path validity, verify that the closure property holds.
2005-01-19	* `nix-store --build' now builds its arguments in parallel instead of	Eelco Dolstra	4	-24/+37
	sequentially (within the limits set by `--jobs'). This should greatly improve the utilisation of the build farm when doing Nixpkgs builds.
2005-01-19	* Change extension `.store' to `.drv'.	Eelco Dolstra	10	-137/+118
	* Re-enable `nix-store --query --requisites'.
2005-01-19	* Started removing closure store expressions, i.e., the explicit	Eelco Dolstra	15	-891/+408
	representation of closures as ATerms in the Nix store. Instead, the file system pointer graph is now stored in the Nix database. This has many advantages: - It greatly simplifies the implementation (we can drop the notion of `successors', and so on). - It makes registering roots for the garbage collector much easier. Instead of specifying the closure expression as a root, you can simply specify the store path that must be retained as a root. This could not be done previously, since there was no way to find the closure store expression containing a given store path. - Better traceability: it is now possible to query what paths are referenced by a path, and what paths refer to a path.