3 commits

Author	SHA1	Message	Date
Eelco Dolstra	dcc37c236c	* nix-store, nix-instantiate: added an option `--add-root' to ... immediately add the result as a permanent GC root. This is the only way to prevent a race with the garbage collector. For instance, the old style ln -s $(nix-store -r $(nix-instantiate foo.nix)) \ /nix/var/nix/gcroots/result has two time windows in which the garbage collector can interfere (by GC'ing the derivation and the output, respectively). On the other hand, nix-store --add-root /nix/var/nix/gcroots/result -r \ $(nix-instantiate --add-root /nix/var/nix/gcroots/drv \ foo.nix) is safe. * nix-build: use `--add-root' to prevent GC races.	2005-02-01 12:36:25 +00:00
Eelco Dolstra	c2b0d6b02f	* Document --eval-only and --parse-only options in nix-instantiate.	2004-11-12 23:22:08 +00:00
Eelco Dolstra	078e20885e	* Help text for all (non-script) programs, so no more: ... $ nix-instantiate --help error: unknown flag `--help` Try `nix-instantiate --help' for more information. :-)	2003-12-01 15:55:05 +00:00