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* Realisation of File(...) expressions.

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This commit is contained in:
Eelco Dolstra 2003-06-27 13:55:12 +00:00
parent bb03c45ca0
commit 3da9687854
11 changed files with 137 additions and 368 deletions
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19
src/globals.hh
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@ -8,15 +8,10 @@ using namespace std;
/* Database names. */
/* dbRefs :: Hash -> FileName
/* dbRefs :: Hash -> Path
Maintains a mapping from hashes to filenames within the NixValues
directory. This mapping is for performance only; it can be
reconstructed unambiguously. The reason is that names in this
directory are not printed hashes but also might carry some
descriptive element (e.g., "aterm-2.0-ae749a..."). Without this
mapping, looking up a value would take O(n) time because we would
need to read the entire directory. */
Maintains a mapping from hashes to paths. This is what we use to
resolve CHash(hash) content descriptors. */
extern string dbRefs;
/* dbNFs :: Hash -> Hash
@ -45,11 +40,11 @@ extern string dbNetSources;
/* Path names. */
/* nixValues is the directory where all Nix values (both files and
directories, and both normal and non-normal forms) live. */
extern string nixValues;
/* nixStore is the directory where we generally store atomic and
derived files. */
extern string nixStore;
/* nixLogDir is the directory where we log evaluations. */
/* nixLogDir is the directory where we log various operations. */
extern string nixLogDir;
/* nixDB is the file name of the Berkeley DB database where we