diff options
| author | Eelco Dolstra <e.dolstra@tudelft.nl> | 2004-06-28 10:42:57 +0000 |
|---|---|---|
| committer | Eelco Dolstra <e.dolstra@tudelft.nl> | 2004-06-28 10:42:57 +0000 |
| commit | 91dc023665e22eb5637bf08c405e91ac9060c357 (patch) | |
| tree | 566e96b4670653bc9ab68f042e94808dcdcb5b29 /src/libstore/db.hh | |
| parent | b113edeab780216b0590045b932be685d1399e9b (diff) | |
* Added a switch `--fallback'. From the manual:
Whenever Nix attempts to realise a derivation for which a closure is
already known, but this closure cannot be realised, fall back on
normalising the derivation.
The most common scenario in which this is useful is when we have
registered substitutes in order to perform binary distribution from,
say, a network repository. If the repository is down, the
realisation of the derivation will fail. When this option is
specified, Nix will build the derivation instead. Thus, binary
installation falls back on a source installation. This option is
not the default since it is generally not desirable for a transient
failure in obtaining the substitutes to lead to a full build from
source (with the related consumption of resources).
Diffstat (limited to 'src/libstore/db.hh')
| -rw-r--r-- | src/libstore/db.hh | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/libstore/db.hh b/src/libstore/db.hh index 1c681b9b5..bbeabfc7d 100644 --- a/src/libstore/db.hh +++ b/src/libstore/db.hh @@ -76,7 +76,8 @@ public: const string & key, const string & data); void setStrings(const Transaction & txn, TableId table, - const string & key, const Strings & data); + const string & key, const Strings & data, + bool deleteEmpty = true); void delPair(const Transaction & txn, TableId table, const string & key); |