Suggested by Jookia.
* guix/derivations.scm (&file-search-error): New error condition.
(search-path*): Raise it when 'search-path' returns #f.
* guix/gexp.scm (search-path*): Remove.
* guix/ui.scm (call-with-error-handling): Add case for
'file-search-error?'.
* tests/derivations.scm ("build-expression->derivation and invalid
module name"): New test.
This provides the ability to use numbers in package names.
Fixes <http://bugs.gnu.org/19219>.
* guix/utils.scm (package-name->name+version): New procedure.
* gnu/packages.scm (%find-package): Add a FALLBACK? keyword argument.
Use the previous method when no package is found.
(specification->package+output, specification->package): Adapt
documentation to new syntax.
* doc/guix.texi (Invoking guix package, Invoking guix import): Likewise.
* guix/ui.scm (package-specification->name+version+output): Likewise.
* guix/scripts/import/hackage.scm (show-help): Likewise.
* tests/guix-build.sh: Adapt to new syntax.
* tests/guix-lint.sh: Likewise.
* tests/guix-package.sh: Likewise.
* tests/ui.scm ("package-specification->name+version+output"): Likewise.
* tests/utils.scm ("package-name->name+version"): Likewise.
* NEWS: Mention new syntax.
Partly fixes <http://bugs.gnu.org/22039>.
* gnu/services/herd.scm: New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add it.
* gnu/services/shepherd.scm (shepherd-service-canonical-name): New
procedure.
(shepherd-service-file): Export.
* guix/scripts/system.scm (upgrade-shepherd-services): New procedure.
(switch-to-system): Use it.
* guix/ui.scm (info): New procedure.
* doc/guix.texi (Invoking guix system): Mention system services.
* guix/derivations.scm (substitution-oracle): Add #:mode parameter and
honor it.
(derivation-prerequisites-to-build): Likewise.
[derivation-built?]: Take it into account.
* guix/ui.scm (show-what-to-build): Add #:mode parameter. Pass it to
'substitute-oracle' and 'derivations-prerequisites-to-build'.
* tests/derivations.scm ("derivation-prerequisites-to-build in 'check'
mode"): New test.
Fixes <http://bugs.gnu.org/21773>.
Reported by Jan Synáček <jan.synacek@gmail.com>.
* guix/ui.scm (make-regexp*): New procedure.
* guix/scripts/package.scm (options->installable, guix-package): Use it
when processing user-provided regexps.
* guix/scripts/package.scm (delete-generations): Use
'delete-generation*' instead of 'delete-generation'.
(guix-package)[process-actions]: Use 'roll-back*' instead of
'roll-back' and 'switch-to-generation*' instead of
'switch-to-generation'.
(link-to-empty-profile, switch-to-generation,
switch-to-previous-generation, roll-back, delete-generation): Move
to...
* guix/profiles.scm: ... here. Adjust to not print messages and to
return values that can be used by user interfaces.
* guix/ui.scm (display-generation-change, roll-back*,
switch-to-generation*, delete-generation*): New procedures.
* guix/scripts/package.scm (guix-package)[process-query](list-generations):
Move part of the body to 'delete-generation' and
'display-profile-content'.
* guix/ui.scm (display-generation, display-profile-content): New
procedures.
* guix/scripts/system.scm (specification->file-system-mapping): Move from
here...
* guix/ui.scm (specification->file-system-mapping): ... to here.
* guix/scripts/enviroment.scm (show-help): Show help for new options.
(%options): Add --container --network, --expose, and --share options.
(%network-configuration-files): New variable.
(launch-environment, launch-environment/container, requisites*,
inputs->requisites): New procedures.
(guix-environment): Spawn new process in a container when requested.
* doc/guix.texi (Invoking guix environment): Document it.
* tests/guix-environment-container.sh: New file.
* Makefile.am (SH_TESTS): Add it.
Fixes <http://bugs.gnu.org/21536>.
Reported by Alex Kost <alezost@gmail.com>.
* guix/ui.scm (texi->plain-text): Wrap body in 'with-fluids'.
* tests/ui.scm ("package-description-string vs. Unicode"): New test.
Provide support for Texinfo's markup in package description.
* guix/ui.scm (%text-width): New parameter.
(texi->plain-text): New variable.
(package->recutils): Use them.
(package-description-string): New variable.
* emacs/guix-main.scm (%package-param-alist): Use it.
* gnu/packages/perl.scm (perl-devel-globaldestruction)
(perl-devel-lexalias, perl-exporter-lite): Adapt to Texinfo's markup.
* gnu/packages/python.scm (python2-empy): Likewise.
The effect is visible on commands like:
guix build -e '(+ 2 "foo")'
guix build -e '()'
* guix/ui.scm (read/eval): Change handler to properly report syntax errors and
use 'display-error' for other errors.
* guix/ui.scm (load*): Add #:on-error parameter.
[tag, error-string]: New variables.
Wrap 'load' call in 'call-with-prompt'. Pass TAG to 'make-stack'. Honor
ON-ERROR after 'report-load-error' call.
(report-load-error): Change to not exit on error. Make private.
* guix/scripts/system.scm (show-help, %options): Add --on-error.
(guix-system): Use 'load*' and pass it #:on-error.
Reported by Christian Grothoff.
* guix/ui.scm (load*): Add 'frame-with-source'. Set
%load-should-auto-compile. Change error handle to just (exit 1). Add
pre-unwind handler to capture the stack and call 'report-load-error'.
(report-load-error): Add optional 'frame' parameter and pass it to
'display-error'.
* tests/guix-system.sh: Add "unbound variable" test.
* guix/ui.scm (make-user-module, load*): New procedures.
* guix/scripts/system.scm (%user-module): Define in terms of
'make-user-module'.
(read-operating-system): Define in terms of load*'.
* guix/ui.scm (warn-about-load-error): New procedure.
* gnu/packages.scm (package-modules): Wrap 'resolve-interface' call in
'catch #t', and call 'warn-about-load-error' in handler.
* guix/scripts/system.scm (read-operating-system): Replace error
handling code by a call to 'report-load-error'.
* guix/ui.scm (report-load-error): New procedure.
Reported by Alex Kost <alezost@gmail.com>
at <http://lists.gnu.org/archive/html/guix-devel/2015-02/msg00702.html>.
* guix/ui.scm (parse-command-line)[parse-options-from]: Add 'seeds'
parameter.
Thread the result of the first 'parse-options-from' call to the
second.
Fixes <http://bugs.gnu.org/19630>.
Reported by Ricardo Wurmus <ricardo.wurmus@mdc-berlin.de>.
* guix/derivations.scm (&derivation-error,
&derivation-missing-output-error): New error conditions.
(derivation->output-path): Raise a '&derivation-missing-output-error'
if OUTPUT is not an output of DRV.
* guix/ui.scm (call-with-error-handling): Add case for
'derivation-missing-output-error?'.
(show-what-to-build): Check whether (derivation-outputs drv) is
empty.
* tests/packages.scm ("reference to non-existent output"): Add test.
* guix/ui.scm (report-error): Export.
* guix/scripts/system.scm (read-operating-system): Report syntax errors
using standard GNU format. Report other errors using 'display-error'.
This makes 'guix environment PACKAGE' significantly faster when
substitutes are enabled. Before that, it would lead to many invocations
of 'guix substitute-binary', one per 'derivation-prerequisites-to-build'
call. Now, all these are replaced by a single invocation.
* guix/derivations.scm (derivation-output-paths, substitution-oracle):
New procedures.
(derivation-prerequisites-to-build): Replace #:use-substitutes? with
#:substitutable?. Remove the local 'derivation-output-paths' and
'substitutable?'.
* guix/ui.scm (show-what-to-build): Add 'substitutable?'. Pass it to
'derivation-prerequisites-to-build'.
[built-or-substitutable?]: Use it instead of 'has-substitutes?'.
* tests/derivations.scm ("derivation-prerequisites-to-build and
substitutes"): Use #:substitutable? instead of #:use-substitutes?.
Ludovic Courtès