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Eelco Dolstra 7d75616f2c * NEWS and manual update for release 0.7. 2005-01-12 10:27:46 +00:00
Eelco Dolstra 6af4a5a71f * Prototype store optimiser. It searched the Nix store for identical 
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.
 2005-01-05 09:58:12 +00:00
Eelco Dolstra a03397be4c * Cygwin compatibility. 2005-01-04 17:38:26 +00:00
Eelco Dolstra f28ea27d83 * Remove old stuff. 2004-12-31 11:07:32 +00:00
Eelco Dolstra c53898cb65 * If a patch already exists, it must still be included in the manifest. 2004-12-31 11:07:12 +00:00
Eelco Dolstra 35b76a81c4 * More instrumentation (statistics go to /nix/var/log/nix/downloads). 2004-12-30 17:19:47 +00:00
Eelco Dolstra 3745cecc6a * Fix handling of chained patches: don't skip patches if intermediate 
paths are missing, etc.
 2004-12-30 17:09:57 +00:00
Eelco Dolstra 581bcb986f * Some logging for evaluation. 2004-12-30 16:34:54 +00:00
Eelco Dolstra 6270aa727d * Propagate patches from the source distribution to the destination 
distribution insofar they are applicable.
 2004-12-29 22:17:26 +00:00
Eelco Dolstra 4f07ebc67e * Integrated bsdiff/bspatch 4.2 (from 
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 22:08:48 +00:00
Eelco Dolstra 54d8f08588 * Reject patches larger than the full archives they produce. 2004-12-29 19:32:55 +00:00
Eelco Dolstra 2fdb27e7f2 * Atomic file replacement is good. 2004-12-29 19:04:21 +00:00
Eelco Dolstra e1e9c036f9 * A utility to generate patches between releases based on their 
manifests.
 2004-12-29 18:58:15 +00:00
Eelco Dolstra 77fc1c6c5c * Use aterm 2.3.1. 2004-12-29 17:29:24 +00:00
Eelco Dolstra 9022cf9adf * A small utility to add the Size and NarHash fields to old manifests. 2004-12-28 21:12:00 +00:00
Eelco Dolstra 4bf58d5379 * Added a function to write manifests. 2004-12-28 21:11:28 +00:00
Eelco Dolstra 3d1b2101cc * Place manifests in /nix/var/nix/manifests. 
* Use the new patch downloader.
 2004-12-20 16:38:50 +00:00
Eelco Dolstra 7eed57e784 * Sync with changed substitute mechanism. 
* Accept the NarHash line.
* Clear substitutes in `nix-channel --update'.
 2004-12-20 14:57:03 +00:00
Eelco Dolstra 96c3d8a615 * I love test sets. 2004-12-20 14:38:04 +00:00
Eelco Dolstra 8b9697e575 * An operation `nix-store --clear-substitutes' to remove all 
registered substitute mappings.
 2004-12-20 14:16:55 +00:00
Eelco Dolstra fa9259f5f5 * Simplify the substitute mechanism: 
- Drop the store expression.  So now a substitute is just a
    command-line invocation (a program name + arguments).  If you
    register a substitute you are responsible for registering the
    expression that built it (if any) as a root of the garbage
    collector.
  - Drop the substitutes-rev DB table.
 2004-12-20 13:43:32 +00:00
Eelco Dolstra 015beb7cd0 * Typo: genericBuilder -> genericBuild. 2004-12-17 13:46:07 +00:00
Eelco Dolstra 4d25b0b0bb * Fix nix-pull. 2004-12-16 15:31:50 +00:00
Eelco Dolstra f4041cc175 * Commit old changed to bdiff.sh - but bdiff.sh is obsolete. 2004-12-16 14:59:05 +00:00
Eelco Dolstra 77970f8daf * Remove `prebuilts.conf' file, it's not like anybody was using it. 
* Add /nix/var/nix/manifests directory.
 2004-12-16 14:31:49 +00:00
Eelco Dolstra e3b051aeeb * Include the size of the bzipped archive (necessary for computing the 
cheapest download path), as well as the hash of the contents of the
  path (necessary for checking patch applicability).
 2004-12-13 16:56:18 +00:00
Eelco Dolstra 862f4c154e * Patch deployment. `download.pl' (intended to be used in the 
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 13:47:38 +00:00
Eelco Dolstra dca48aed34 * Allow an optional hash to be provided. This prevents redundant 
fetches.
 2004-12-13 13:35:36 +00:00
Eelco Dolstra 71926ee188 * Print out statistics comparing our performance to bzip2. 2004-11-29 21:04:28 +00:00
Eelco Dolstra 13f77276d1 * utime() follows symlinks, so don't change the mtime if the file is a 
symlink.
 2004-11-29 19:22:16 +00:00
Eelco Dolstra eee6fe478e * Proof-of-concept for binary patch deployment. 2004-11-29 19:12:55 +00:00
Eelco Dolstra f17553a212 * Remove debug statement. 2004-11-29 15:30:44 +00:00
Eelco Dolstra 4115d8d8ce * Canonicalise metadata of all files in store paths (set the mtime to 
0, set the mode to either 444 or 555, set the group to the default).
 2004-11-29 15:09:29 +00:00
Eelco Dolstra 5d5318c2ff * Bump version number to 0.7. 2004-11-14 14:00:45 +00:00
Eelco Dolstra 9f8964a062 * More manual fixes. 2004-11-14 10:42:16 +00:00
Eelco Dolstra 0b79a12082 * Manual fixes. 2004-11-14 00:24:57 +00:00
Eelco Dolstra 54c7a870d5 * Document --delete-generations and other nix-env options. 2004-11-12 23:56:37 +00:00
Eelco Dolstra c2b0d6b02f * Document --eval-only and --parse-only options in nix-instantiate. 2004-11-12 23:22:08 +00:00
Eelco Dolstra 32c7326850 * Typos. 2004-11-09 14:06:56 +00:00
Eelco Dolstra 92ee003dc9 * Fix broken format string. 2004-11-08 15:20:52 +00:00
Eelco Dolstra d6db574ec1 * Check exit status of pipe elements. 2004-11-08 11:32:10 +00:00
Eelco Dolstra b8aaef5e4e * Documented the standard environment, including the generic builder. 2004-11-07 22:12:16 +00:00
Eelco Dolstra 2c3b29c5ca * Everything you always wanted to know about functions and derivations 
but were afraid to ask.
 2004-11-07 20:36:45 +00:00
Eelco Dolstra ea6581b691 * Drop the grammar appendix. 2004-11-07 20:36:10 +00:00
Eelco Dolstra 09e7f06818 * Put something in here. 2004-11-07 20:30:02 +00:00
Eelco Dolstra 1bac7a10e6 * Operators, comments. 2004-11-07 18:58:49 +00:00
Eelco Dolstra 55b35d6d77 * Lets, inheritance, assertions. 2004-11-07 13:53:07 +00:00
Eelco Dolstra 0b1ee4802b * Typo fix. 2004-11-05 21:12:23 +00:00
Eelco Dolstra 5f0300d18c * Generic builders. 2004-11-05 21:11:01 +00:00
Eelco Dolstra 3e9d2038b4 * Start of language reference. 2004-11-05 15:39:30 +00:00