lix/src/nix-instantiate/help.txt
Ludovic Courtès 09381cccff Make source location info in the XML output optional.
* src/libexpr/expr-to-xml.cc (nix::showAttrs): Add `location'
  parameter.  Provide location XML attributes when it's true.  Update
  callers.
  (nix::printTermAsXML): Likewise.

* src/libexpr/expr-to-xml.hh (nix::printTermAsXML): Update prototype;
  have `location' default to `false'.

* src/nix-instantiate/nix-instantiate.cc (printResult, processExpr): Add
  `location' parameter; update callers.
  (run): Add support for `--no-location'.

* src/nix-instantiate/help.txt: Update accordingly.

* tests/lang.sh: Invoke `nix-instantiate' with `--no-location' for the
  XML tests.

* tests/lang/eval-okay-toxml.exp, tests/lang/eval-okay-to-xml.nix: New
  files.
2010-03-31 12:38:31 +00:00

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Usage: nix-instantiate [OPTIONS...] [FILES...]
`nix-instantiate' turns Nix expressions into store derivations.
The argument `-' may be specified to read a Nix expression from
standard input.
Options:
--version: output version information
--help: display help
--verbose / -v: verbose operation (may be repeated)
--eval-only: evaluate and print resulting term; do not instantiate
--parse-only: parse and print abstract syntax tree
--attr / -A PATH: select an attribute from the top-level expression
--add-root: add garbage collector roots for the result
For --eval-only / --parse-only:
--xml: print an XML representation of the abstract syntax tree
--no-location: don't provide source location information in the
output XML tree
For --eval-only:
--strict: compute attributes and list elements, rather than being
lazy