Commit graph

13 commits

Author SHA1 Message Date
Mikey Ariel 8901acc976 Restructuring the Nix manual 2014-08-27 18:41:09 +02:00
Ricardo M. Correia 700c678c2e nix-env: Minor change to '--delete-generations Nd' semantics
The option '--delete-generations Nd' deletes all generations older than N
days. However, most likely the user does not want to delete the
generation that was active N days ago.

For example, say that you have these 3 generations:

1: <30 days ago>
2: <15 days ago>
3: <1 hour ago>

If you do --delete-generations 7d (say, as part of a cron job), most
likely you still want to keep generation 2, i.e. the generation that was
active 7 days ago (and for most of the past 7 days, in fact).

This patch fixes this issue. Note that this also affects
'nix-collect-garbage --delete-older-than Nd'.

Thanks to @roconnor for noticing the issue!
2014-04-15 15:34:58 +02:00
Ricardo M. Correia 034b6f6062 nix-collect-garbage: Add --delete-older-than option 2014-03-30 00:54:16 +01:00
Eelco Dolstra 983220bcd4 nix-collect-garbage: Support --dry-run 2012-09-13 18:09:20 -04:00
Eelco Dolstra d413612029 * Remove the redundant <sections> around refentries. 2009-07-14 14:58:12 +00:00
Eelco Dolstra 8a9fe6c11c * Manpage for nix-copy-closure. 2007-09-19 14:01:41 +00:00
Eelco Dolstra 070e07ed5a * Manual. 2006-09-29 11:03:16 +00:00
Eelco Dolstra 1a9a1f2768 * Convert to DocBook 5.
* Use Jing for RelaxNG validation, xmllint seems buggy.
2006-08-21 16:05:11 +00:00
Eelco Dolstra 806b91f104 * GC docs. 2005-04-07 08:17:04 +00:00
Eelco Dolstra 229252941a * Some GC documentation. 2005-04-05 11:30:56 +00:00
Eelco Dolstra eb233e728f * `--min-age' flag in nix-store and nix-collect-garbage to only delete
unreachable paths that haven't been used for N hours.  For instance,
  `nix-collect-garbage --min-age 168' only deletes paths that haven't
  been accessed in the last week.

  This is useful for instance in the build farm where many derivations
  can be shared between consecutive builds, and we wouldn't want a
  garbage collect to throw them all away.  We could of course register
  them as roots, but then we'd to unregister them at some point, which
  would be a pain to manage.  The `--min-age' flag gives us a sort of
  MRU caching scheme.

  BUG: this really shouldn't be in gc.cc since that violates
  mechanism/policy separation.
2004-08-25 16:54:08 +00:00
Eelco Dolstra fdec72c6cc * `nix-collect-garbage' now actually performs a garbage collection, it
doesn't just print the set of paths that should be deleted.  So
  there is no more need to pipe the result into `nix-store --delete'
  (which doesn't even exist anymore).
2004-08-25 15:39:13 +00:00
Eelco Dolstra 92e832348d * Lots of manual stuff. Reference pages for most Nix commands.
* nix-pull now requires the full url to the manifest, i.e.,
  `/MANIFEST/' is no longer automatically appended.
* nix-prefetch-url works again.
2004-02-10 16:14:47 +00:00