* guix/scripts/substitute-binary.scm: New file.
* Makefile.am (MODULES): Add it.
* nix/scripts/substitute-binary.in: New file.
* config-daemon.ac: Produce nix/scripts/substitute-binary.
* daemon.am (nodist_pkglibexec_SCRIPTS): Add
nix/scripts/substitute-binary.
* guix/store.scm (substitutable-path-info): Use the
`query-substitutable-path-infos' RPC.
* nix/nix-daemon/guix-daemon.cc (main): Honor `NIX_SUBSTITUTERS'.
* pre-inst-env.in: Set `NIX_SUBSTITUTERS'.
* test-env.in: Leave `NIX_SUBSTITUTERS' unchanged. Set
`GUIX_BINARY_SUBSTITUTE_URL, and create
$NIX_STATE_DIR/substituter-data.
Run `guix-daemon' within `./pre-inst-env'.
* tests/store.scm ("substitute query"): New test.
* guix/gnu-maintenance.scm (http-fetch): Try #:streaming? #t, or
'http-get*', or 'http-get' as a last resort. Check whether DATA is
#f, a string, or an input port.
* guix/gnu-maintenance.scm (http-fetch): Return an input port.
(<gnu-package-descriptor>): Add it.
(official-gnu-packages): Use <gnu-package-descriptor>.
(find-packages): Add it.
(gnu-package?): Adjust accordingly.
* guix/store.scm (write-contents)[call-with-binary-input-file]: New
procedure.
Use `sendfile' instead of `dump' when available. Add `size'
parameter.
(write-file): Update caller.
* release.nix (unchrootedNixpkgs): New function.
(jobs)[tarball, build, build_disable_daemon, distro): Use it.
Should fix <http://hydra.gnu.org:3000/build/7279>.
This reduces the execution time of
"guix build -e '(@ (gnu packages emacs) emacs)' -d" by 6%, from
1.15s to 1.08s.
* guix/derivations.scm (build-expression->derivation): Write the builder
as UTF-8.
This reduces the execution time of
"guix build -e '(@ (gnu packages emacs) emacs)' -d" by 25%, from
1.54 s. to 1.15s.
* guix/derivations.scm (write-sequence, write-list, write-tuple): New
procedures.
(write-derivation)[list->string, write-list]: Remove.
[write-string-list, write-output, write-input, write-env-var]: New helpers.
Rewrite in terms of these new helpers.
* guix/gnu-maintenance.scm (http-fetch): Error out when DATA is #f.
* guix/scripts/package.scm (check-package-freshness): Wrap
`gnu-package?' call in `false-if-exception'.
Reported by Cyril Roelandt <tipecaml@gmail.com>.
* guix/store.scm (&nix-connection-error): New condition type.
(open-connection): Translate `system-error' during the `connect' call
into `&nix-connection-error'.
* guix/ui.scm (call-with-error-handling): Add case for `nix-connection-error?'.
* guix/scripts/package.scm (guix-package): Move `open-connection' call
within `with-error-handling'.
* guix/scripts/pull.scm (guix-pull): Likewise.
* guix/scripts/download.scm (guix-download): Move body within
`with-error-handling'.
* guix/gnu-maintenance.scm (gnu-package?): New procedure.
* guix/scripts/package.scm (waiting): New macro.
(check-package-freshness): New procedure.
(guix-package)[process-actions]: Use it.
* doc/guix.texi (Invoking guix package): Mention the feature.
Ludovic Courtès