Commit graph

9 commits

Author SHA1 Message Date
Eelco Dolstra 220818f758 queryPathInfo(): return hash in base-32 if desired
Cherry-picked from the no-manifests branch.
2012-07-17 16:55:45 -04:00
Eelco Dolstra 7f38087f35 Add a command "nix-build --run-env" to reproduce the environment of a derivation
This command builds or fetches all dependencies of the given
derivation, then starts a shell with the environment variables from
the derivation.  This shell also sources $stdenv/setup to initialise
the environment further.

The current directory is not changed.  Thus this is a convenient way
to reproduce a build environment in an existing working tree.

Existing environment variables are left untouched (unless the
derivation overrides them).  As a special hack, the original value of
$PATH is appended to the $PATH produced by $stdenv/setup.

Example session:

$ nix-build --run-env '<nixpkgs>' -A xterm
(the dependencies of xterm are built/fetched...)
$ tar xf $src
$ ./configure
$ make
$ emacs
(... hack source ...)
$ make
$ ./xterm
2012-03-19 04:14:21 +01:00
Eelco Dolstra 92d6a5ed73 * Add some more functions to the Perl bindings. 2011-12-02 12:09:24 +00:00
Eelco Dolstra 1749a7b0ae * download-using-manifests: use the Perl bindings. 2011-11-29 13:01:24 +00:00
Eelco Dolstra 216440b3ff * For consistency with "nix-store -q --hash", produce hashes in
base-32.  (This affects Hydra manifests.)
2011-11-29 12:32:55 +00:00
Eelco Dolstra 5bbd693cae * Add an API function exportPaths() that provides the functionality of
‘nix-store --export’.
* Add a Perl module that provides the functionality of
  ‘nix-copy-closure --to’.  This is used by build-remote.pl so it no
  longer needs to start a separate nix-copy-closure process.  Also, it
  uses the Perl API to do the export, so it doesn't need to start a
  separate nix-store process either.  As a result, nix-copy-closure
  and build-remote.pl should no longer fail on very large closures due
  to an "Argument list too long" error.  (Note that having very many
  dependencies in a single derivation can still fail because the
  environment can become too large.  Can't be helped though.)
2011-11-23 15:13:37 +00:00
Eelco Dolstra 993fa94fb4 * Move initialisation of variables like nixConfDir from libmain to
libstore so that the Perl bindings can use it as well.  It's vital
  that the Perl bindings use the configuration file, because otherwise
  nix-copy-closure will fail with a ‘database locked’ message if the
  value of ‘use-sqlite-wal’ is changed from the default.
2011-11-22 17:28:41 +00:00
Eelco Dolstra 6761757428 * Use the Store API bindings in nix-copy-closure. 2011-10-11 15:41:13 +00:00
Eelco Dolstra 73fe6871c4 * Include the Nix Perl bindings in Nix itself. This will allow the
bindings to be used in Nix's own Perl scripts.

  The only downside is that Perl XS and Automake/libtool don't really
  like each other, so building is a bit tricky.
2011-10-10 18:12:40 +00:00