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* Conversion to a BDB-free store. Meta-information for each valid

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path (content hash, references, deriver) is now stored in
  /nix/var/nix/db/meta/<base-path>.info.  The referrers are stored
  separately in /nix/var/nix/db/meta/<base-path>.referrers.  This is
  done because the referrers can change, which the info file is in
  principle immutable.  The referrers must also be updated efficiently
  to prevent a regression of NIX-23 (quadratic complexity updating the
  referrers during garbage collection).

  This is just the conversion code, the rest of the code still uses
  BDB.
This commit is contained in:
Eelco Dolstra 2008-03-03 15:29:03 +00:00
parent f5e6c9bcfd
commit 91313011f9
2 changed files with 90 additions and 14 deletions
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4
src/libstore/local-store.hh
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@ -14,8 +14,8 @@ class Transaction;
/* Nix store and database schema version. Version 1 (or 0) was Nix <=
0.7. Version 2 was Nix 0.8 and 0.9. Version 3 is Nix 0.10.
Version 4 is Nix 0.11. */
const int nixSchemaVersion = 4;
Version 4 is Nix 0.11. Version 5 is Nix 0.12*/
const int nixSchemaVersion = 5;
extern string drvsLogDir;