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* Allow the output/expression id to be forced to a certain

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value; this potentially dangerous feature enables better 
  sharing for those paths for which the content is known in 
  advance (e.g., because a content hash is given).
* Fast builds: if we can expand all output paths of a derive 
  expression, we don't have to build.
This commit is contained in:
Eelco Dolstra 2003-07-21 20:07:12 +00:00
parent 49231fbe41
commit 249988a787
6 changed files with 23 additions and 17 deletions
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src/fstate.hh
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@ -63,7 +63,7 @@ Hash hashTerm(ATerm t);
ATerm termFromId(const FSId & id);
/* Write an aterm to the Nix store directory, and return its hash. */
FSId writeTerm(ATerm t, const string & suffix);
FSId writeTerm(ATerm t, const string & suffix, FSId id = FSId());
/* Parse an fstate-expression. */
FState parseFState(ATerm t);