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* Maintain the references/referers relation also for derivations.

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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.
This commit is contained in:
Eelco Dolstra 2005-01-25 21:28:25 +00:00
parent 2a2756b856
commit a24b78e9f1
8 changed files with 84 additions and 82 deletions
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5
src/libstore/store.hh
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@ -57,7 +57,7 @@ void clearSubstitutes();
of the file system contents of the path. The hash must be a
SHA-256 hash. */
void registerValidPath(const Transaction & txn,
const Path & path, const Hash & hash);
const Path & path, const Hash & hash, const PathSet & references);
/* Throw an exception if `path' is not directly in the Nix store. */
void assertStorePath(const Path & path);
@ -97,7 +97,8 @@ Path addToStore(const Path & srcPath);
/* Like addToStore, but the contents written to the output path is a
regular file containing the given string. */
Path addTextToStore(const string & suffix, const string & s);
Path addTextToStore(const string & suffix, const string & s,
const PathSet & references);
/* Delete a value from the nixStore directory. */
void deleteFromStore(const Path & path);