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2005-03-14 * Set NAR name to content hash; previous nix-push names were notEelco Dolstra2-25/+13
unique. * Drop `hashAlgo' attribute in manifests; prefix hashes with the hash algorithm instead.
2005-03-14 * Script to garbage collect nix-push directories. It prints out allEelco Dolstra1-0/+75
file names in the directory not included in any of the manifests specified on the command line.
2005-03-11 * nix-install-package: install outPath, not drvPath, for now.Eelco Dolstra2-2/+3
* nix-prefecth-url: print out in base-16.
2005-03-03 * Channel fix.Eelco Dolstra1-1/+1
2005-03-01 * Doh!Eelco Dolstra1-1/+1
2005-03-01 * Add missing file to dist.Eelco Dolstra1-1/+2
2005-03-01 * Use a weighted use heuristic to disambiguate between multipleEelco Dolstra1-8/+77
occurances of a component. If the shortest path distance between a component P and Q in the referers graph is D, then the contribution of Q to the use of P is 1 / R^D, where R >= 1, typically 2. This expresses that distant indirect uses are less important than nearby uses. For instance, this can disambiguate between the bootstrap GCC in Nixpkgs and the GCC of the final stdenv (the former has more uses, but they are further away), and between the GCC of the final stdenv and the GCC+G77 build (the latter has very few uses).
2005-02-28 * Added a disambiguation heuristic: if two components have the sameEelco Dolstra2-4/+24
name but differ to much in sice (by more than a factor of 3), then never generate a patch.
2005-02-25 * Add a version number to manifests.Eelco Dolstra3-2/+16
2005-02-25 * Pause if errors occur.Eelco Dolstra1-1/+1
2005-02-25 * nix-install-package: Use the new (trivial) package format generatedEelco Dolstra1-21/+34
by the build farm. See e.g., http://catamaran.labs.cs.uu.nl/dist/nixpkgs-0.8/nixpkgs-0.7pre2302/; the user can click on packages, and they will be installed (assuming the `application/nix-package' MIME type has been associated with `nix-install-package'). Nix expressions are no longer involved: a "package" is just a pointer to a manifest, and the top-level store derivation to be added to the user environment. This makes these packages independent from Nix expression evolution. Note that we install the store derivation ($drvPath), not the resulting output path ($outPath). This is equivalent, except that installing the derivation maintains the back-link from the output path to the derivation that built it. This is useful for maintenance. * Automatically re-exec in an xterm so that the user sees something when `nix-install-package' is run from a browser.
2005-02-24 * Properly specify the hash algorithm in the manifests, and read itEelco Dolstra4-13/+31
too. * Change the default hash for nix-prefetch-url back to md5, since that's what we use in Nixpkgs (for now; a birthday attack is rather unlikely there).
2005-02-24 * (Unnecessary) refactoring.Eelco Dolstra1-29/+36
2005-02-22 * Support for fixed-output hashes over directory trees (i.e., over theEelco Dolstra1-2/+2
NAR dump of the path).
2005-02-17 * Fix nix-channel.Eelco Dolstra2-25/+63
* Add `--help' flag; fixes NIX-5. * Add `--remove' flag; fixes NIX-6. * Add `--list' flag.
2005-02-09 * Propagate the deriver of a path through the substitute mechanism.Eelco Dolstra3-25/+17
* 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.
2005-02-08 * Set umask to prevent permission problems.Eelco Dolstra1-0/+4
2005-02-08 * Better error reporting in readmanifest.Eelco Dolstra2-2/+3
* Use force flag in `mv' to prevent silly interactive questions (this happens with shared Nix stores).
2005-02-01 * Remove debug code.Eelco Dolstra1-2/+2
2005-02-01 * Make check fixes.Eelco Dolstra1-3/+3
2005-02-01 * Move root finding from `nix-collect-garbage' to `nix-store --gc'.Eelco Dolstra1-83/+2
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 toEelco Dolstra1-17/+28
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' toEelco Dolstra1-2/+9
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 * Get rid of hardcoded paths.Eelco Dolstra1-7/+7
2005-01-31 * Start of concurrent garbage collection. Processes write temporaryEelco Dolstra1-1/+5
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.
2005-01-27 * Fix and simplify the garbage collector (it's still not concurrent,Eelco Dolstra2-33/+22
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.
2005-01-25 * Really fix the substitute mechanism, i.e., ensure the closureEelco Dolstra5-54/+118
invariant by registering references through the manifest. * Added a test for nix-pull.
2005-01-19 * Set the Perl search path properly (reported by Roy van den Broek).Eelco Dolstra1-1/+1
2005-01-17 * Removed the `id' attribute hack.Eelco Dolstra1-2/+6
* 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 * Use absolute paths.Eelco Dolstra2-8/+8
2005-01-12 * Script to remove patches from manifests.Eelco Dolstra1-0/+19
2005-01-12 * Print out less garbage.Eelco Dolstra1-8/+10
2005-01-05 * 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.
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 * 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.
2004-12-28 * A small utility to add the Size and NarHash fields to old manifests.Eelco Dolstra1-0/+53
2004-12-28 * Added a function to write manifests.Eelco Dolstra2-41/+86
2004-12-20 * Place manifests in /nix/var/nix/manifests.Eelco Dolstra7-23/+250
* Use the new patch downloader.
2004-12-20 * Sync with changed substitute mechanism.Eelco Dolstra3-6/+11
* Accept the NarHash line. * Clear substitutes in `nix-channel --update'.
2004-12-16 * Fix nix-pull.Eelco Dolstra1-11/+14
2004-12-16 * Remove `prebuilts.conf' file, it's not like anybody was using it.Eelco Dolstra2-19/+4
* Add /nix/var/nix/manifests directory.
2004-12-13 * Include the size of the bzipped archive (necessary for computing theEelco Dolstra1-5/+15
cheapest download path), as well as the hash of the contents of the path (necessary for checking patch applicability).
2004-12-13 * Patch deployment. `download.pl' (intended to be used in theEelco Dolstra2-34/+105
substitute mechanism) creates a store path by downloading full NAR archives and/or patches specified in the available manifests. Any combination of present paths, full downloads, and patches can be used to construct the target path. In particular, patches can be chained in sequence; and full NAR archives of the target path can be omitted (i.e., patch-only deployment is possible). A shortest path algorithm is used to find the smallest set of files to be downloaded (the edge weights are currently file sizes, but one can imagine taking the network speed to the various source into account). Patches are binary deltas between two store paths. To be precise, they are the output of the `bsdiff' program applied to the NAR archives obtained by dumping (`nix-store --dump') the two store paths. The advantage of diff'ing NAR archives (and not, say, doing file-by-file diffs) is that file renames/moves are handled automatically. The disadvantage is that we cannot optimise creation of unchanged files (by hard-linking).
2004-12-13 * Allow an optional hash to be provided. This prevents redundantEelco Dolstra1-20/+26
fetches.