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2005-01-27 * Update referers mappings when updating/clearing the referencesEelco Dolstra1-7/+27
mapping. * Do things in the right order in invalidatePath().
2005-01-27 * Remove deleted files from EXTRA_DIST (again).Eelco Dolstra1-3/+1
2005-01-27 * Fix and simplify the garbage collector (it's still not concurrent,Eelco Dolstra10-109/+124
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 theEelco Dolstra4-24/+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 Dolstra8-82/+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 noEelco Dolstra4-24/+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 * Remove removed files from EXTRA_DIST.Eelco Dolstra1-2/+2
2005-01-25 * Re-enable all tests.Eelco Dolstra4-8/+6
2005-01-25 * Really fix the substitute mechanism, i.e., ensure the closureEelco Dolstra16-89/+255
invariant by registering references through the manifest. * Added a test for nix-pull.
2005-01-25 * Fix the `--fallback' switch.Eelco Dolstra10-86/+34
* Fix the substitutes tests.
2005-01-25 * Fix the build hook mechanism; pass the pointer graph to the hook.Eelco Dolstra3-5/+27
2005-01-25 * In nix-store: added query `--referers-closure' that returns theEelco Dolstra5-10/+31
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 broughtEelco Dolstra7-56/+100
back the query flag `--force-realise'. * Fixed some of the tests.
2005-01-20 * Terminology fixes.Eelco Dolstra5-22/+22
2005-01-20 * Ensure that derivation names and sources don't end in `.drv'.Eelco Dolstra1-16/+8
2005-01-20 * Another change to low-level derivations. The last one this year, IEelco Dolstra7-32/+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 * Set the Perl search path properly (reported by Roy van den Broek).Eelco Dolstra1-1/+1
2005-01-19 * Nix-store queries `--references' and `referers' to query the pointerEelco Dolstra3-18/+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 Dolstra19-98/+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 ofEelco Dolstra4-24/+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 Dolstra12-139/+120
* Re-enable `nix-store --query --requisites'.
2005-01-19 * Started removing closure store expressions, i.e., the explicitEelco Dolstra15-891/+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.
2005-01-19 * Support arities > 6.Eelco Dolstra1-1/+7
2005-01-18 * Get --readonly-mode to work again.Eelco Dolstra1-0/+11
2005-01-17 * Actually check that the result of fixed-output derivations matchesEelco Dolstra1-0/+25
the specified hash.
2005-01-17 * Removed the `id' attribute hack.Eelco Dolstra17-101/+292
* Formalise the notion of fixed-output derivations, i.e., derivations for which a cryptographic hash of the output is known in advance. Changes to such derivations should not propagate upwards through the dependency graph. Previously this was done by specifying the hash component of the output path through the `id' attribute, but this is insecure since you can lie about it (i.e., you can specify any hash and then produce a completely different output). Now the responsibility for checking the output is moved from the builder to Nix itself. A fixed-output derivation can be created by specifying the `outputHash' and `outputHashAlgo' attributes, the latter taking values `md5', `sha1', and `sha256', and the former specifying the actual hash in hexadecimal or in base-32 (auto-detected by looking at the length of the attribute value). MD5 is included for compatibility but should be considered deprecated. * Removed the `drvPath' pseudo-attribute in derivation results. It's no longer necessary. * Cleaned up the support for multiple output paths in derivation store expressions. Each output now has a unique identifier (e.g., `out', `devel', `docs'). Previously there was no way to tell output paths apart at the store expression level. * `nix-hash' now has a flag `--base32' to specify that the hash should be printed in base-32 notation. * `fetchurl' accepts parameters `sha256' and `sha1' in addition to `md5'. * `nix-prefetch-url' now prints out a SHA-1 hash in base-32. (TODO: a flag to specify the hash.)
2005-01-14 * Shorten SHA-256 hashes used in store path name generation to 160Eelco Dolstra7-36/+108
bits, then encode them in a radix-32 representation (using digits and letters except e, o, u, and t). This produces store paths like /nix/store/4i0zb0z7f88mwghjirkz702a71dcfivn-aterm-2.3.1. The nice thing about this is that the hash part of the file name is still 32 characters, as before with MD5. (Of course, shortening SHA-256 to 160 bits makes it no better than SHA-160 in theory, but hopefully it's a bit more resistant to attacks; it's certainly a lot slower.)
2005-01-14 * Start move towards SHA-256 hashes instead of MD5.Eelco Dolstra9-34/+63
* Start cleaning up unique store path generation (they weren't always unique; in particular the suffix ("-aterm-2.2", "-builder.sh") was not part of the hash, therefore changes to the suffix would cause multiple store objects with the same hash).
2005-01-14 * Missing file.Eelco Dolstra1-0/+50
2005-01-14 * Use absolute paths.Eelco Dolstra2-8/+8
2005-01-14 * Add SHA-256.Eelco Dolstra9-8/+912
* Tests for the various hashes.
2005-01-14 * Removed some dead code.Eelco Dolstra2-152/+1
2005-01-13 * Added SHA-1 support. `nix-hash' now has an option `--type sha1' toEelco Dolstra9-26/+487
select SHA-1 hashing.
2005-01-13 * Refactoring to support SHA-1.Eelco Dolstra6-18/+36
2005-01-12 * Bump version number to 0.8.Eelco Dolstra1-1/+1
2005-01-12 * Script to remove patches from manifests.Eelco Dolstra1-0/+19
2005-01-12 * Print out less garbage.Eelco Dolstra1-8/+10
2005-01-12 * NEWS and manual update for release 0.7.Eelco Dolstra3-1/+41
2005-01-05 * Prototype store optimiser. It searched the Nix store for identicalEelco Dolstra1-0/+69
files and hard-links them to each other to save disk space. Currently it doesn't actually do the hard-linking, it just reports the amount of space saved if it did.
2005-01-04 * Cygwin compatibility.Eelco Dolstra2-2/+3
2004-12-31 * Remove old stuff.Eelco Dolstra1-59/+0
2004-12-31 * If a patch already exists, it must still be included in the manifest.Eelco Dolstra1-7/+10
2004-12-30 * More instrumentation (statistics go to /nix/var/log/nix/downloads).Eelco Dolstra1-1/+6
2004-12-30 * Fix handling of chained patches: don't skip patches if intermediateEelco Dolstra1-13/+20
paths are missing, etc.
2004-12-30 * Some logging for evaluation.Eelco Dolstra2-0/+16
2004-12-29 * Propagate patches from the source distribution to the destinationEelco Dolstra3-18/+68
distribution insofar they are applicable.
2004-12-29 * Integrated bsdiff/bspatch 4.2 (fromEelco Dolstra9-1/+817
http://www.daemonology.net/bsdiff/bsdiff-4.2.tar.gz) into the source tree. The license is a bit peculiar, but it does allow verbatim copying, which is what we do here (i.e., so don't make any changes to the sources).
2004-12-29 * Reject patches larger than the full archives they produce.Eelco Dolstra1-6/+12
2004-12-29 * Atomic file replacement is good.Eelco Dolstra2-3/+14
2004-12-29 * A utility to generate patches between releases based on theirEelco Dolstra2-25/+249
manifests.