lix/src/nix-help.txt
Eelco Dolstra 8846465934 * Get garbage collection and cache population to work *properly*.
Renamed `fstateRefs' to `fstateRequisites'.  The semantics of this
  function is that it returns a list of all paths necessary to realise
  a given expression.  For a derive expression, this is the union of
  requisites of the inputs; for a slice expression, it is the path of
  each element in the slice.  Also included are the paths of the
  expressions themselves.  Optionally, one can also include the
  requisites of successor expressions (to recycle intermediate
  results).

* `nix-switch' now distinguishes between an expression and its normal
  form.  Usually, only the normal form is registered as a root of the
  garbage collector.  With the `--source-root' flag, it will also
  register the original expression as a root.

* `nix-collect-garbage' now has a flag `--keep-successors' which
  causes successors not to be included in the list of garbage paths.

* `nix-collect-garbage' now has a flag `--invert' which will print all
  paths that should *not* be garbage collected.
2003-07-29 14:28:17 +00:00

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nix [OPTIONS...] [ARGUMENTS...]
Operations:
--install / -i: realise an fstate
--delete / -d: delete paths from the Nix store
--add / -A: copy a path to the Nix store
--query / -q: query information
--successor: register a successor expression
--substitute: register a substitute expression
--dump: dump a path as a Nix archive
--restore: restore a path from a Nix archive
--init: initialise the Nix database
--verify: verify Nix structures
--version: output version information
--help: display help
Source selection for --install, --dump:
--path / -p: by file name !!! -> path
Query flags:
--list / -l: query the output paths (roots) of an fstate (default)
--requisites / -r: print all paths necessary to realise expression
--generators / -g: find expressions producing a subset of given ids
--expansion / -e: print a path containing id
--graph: print a dot graph rooted at given ids
Options:
--verbose / -v: verbose operation (may be repeated)