guix: Add lint-checker for packages which should be no inputs at all.

Also refactor some common code into a new function.

Examples for these pacakges are python(2)-setuptools and python(2)-pip, which
are installed together with python itself.

* guix/scripts/lint.scm (warn-if-package-has-input): New procedure.
  (check-inputs-should-be-native package): Use it; rename and clean-up
  variables. (check-inputs-should-not-be-an-input-at-all): New procedure.
  (%checkers) Add it.
* doc/guix.texi (Python Modules): Document it.
* tests/lint.scm: ("inputs: python-setuptools should not be an input at all
  (input)", "inputs: python-setuptools should not be an input at all
  (native-input)" "inputs: python-setuptools should not be an input at all
  (propagated-input)"): Add tests.

tests: Don't check file-systems in container tests.

Hello,

The containers test was hanging for me, and this patch fixed the
problem.

--
Andy

From 945ad44acf489b7f3a398d4ab739ec2b48477502 Mon Sep 17 00:00:00 2001
From: Andy Patterson <ajpatter@uwaterloo.ca>
Date: Sat, 12 Nov 2016 22:10:01 -0500
Subject: [PATCH] tests: Don't check file-systems in container tests.

* tests/containers.scm ("call-with-container, mnt namespace"): Don't
check file-system in 'call-with-container' call.
* tests/containers.scm
("call-with-container, mnt namespace, wrong bindmount"): Likewise.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

Merge branch 'core-updates'

container: Pass a list of <file-system> objects as things to mount.

* gnu/build/linux-container.scm (mount-file-systems): 'mounts' is now a
list of <file-system> objects instead of a list of lists ("specs").
Add call to 'file-system->spec' as the argument to 'mount-file-system'.
(run-container, call-with-container): Adjust docstring accordingly.
* gnu/system/file-systems.scm (spec->file-system): New procedure.
* gnu/system/linux-container.scm (container-script)[script]: Call
'spec->file-system' inside gexp.
* guix/scripts/environment.scm (launch-environment/container): Remove
call to 'file-system->spec'.
* tests/containers.scm ("call-with-container, mnt namespace")
("call-with-container, mnt namespace, wrong bind mount"): Pass a list of
<file-system> objects.

tests: Adjust 'url-fetch' mocks to TLS changes.

This is a followup to bc3c41ce36349ed4ec758c70b48a7059e363043a.

* tests/cpan.scm ("cpan->guix-package"): Add #:verify-certificate?
parameter in 'url-fetch' mock.
* tests/cran.scm ("description->package"): Likewise.

tests: Fix 'fold-packages' for hidden packages.

* tests/packages.scm ("fold-packages, hidden package"): Expect
GUILE-2.0, not GUILE-2.0/FIXED.  This is a followup to
c62a31ca802c2b225279c4b0360a4cfc2723ad28.

Merge branch 'master' into core-updates

guix hash: Interpret '-' as standard input.

* guix/scripts/hash.scm (guix-hash)[file-hash]: Special-case "-".
* tests/guix-hash.sh: Add test.
* doc/guix.texi (Invoking guix hash): Document it.

Merge branch 'master' into core-updates

tests: Adjust pypi test to recent importer change.

This is a followup to b5c347ad3d83ee580c111bd14c80b469b0dcb294.

* tests/pypi.scm ("pypi->guix-package"): Expect 'propagated-inputs', not
'inputs'.
("pypi->guix-package, wheels"): Likewise.

tests: Skip 'pivot-root' test on Linux > 4.7.5.

* tests/syscalls.scm ("pivot-root"): Skip when 'uname' returns a
'utsname:release' > 4.7.5.

Merge branch 'master' into core-updates

tests: Make sure child process of 'pivot-root' test exits.

* tests/syscalls.scm ("pivot-root"): Use 'test-equal'.  Wrap child body
in 'dynamic-wind'.

tests: Fix typo in 'with-graft' transformation test.

This is a followup to 645b9df858683dc05ffa04c9eb2fdc45ccef4a65.

* tests/scripts-build.scm ("options->transformation, with-graft"): Use
'with-graft', not 'with-input'.

lint: Suggest @code instead of quotes.

* guix/scripts/lint.scm (%quoted-identifier-rx): New variable.
(check-description-style)[check-quotes]: New procedure.
Use it.
* tests/lint.scm ("description: suggest ornament instead of quotes"):
New test.

container: Allow 'container-excursion' to the same namespaces.

Before that, 'container-excursion' would call 'setns' even when the
target namespace is the one the caller is already in, which would fail.

* gnu/build/linux-container.scm (container-excursion): Introduce
'source' and 'target'.  Compare the result of 'readlink' on these
instead of comparing file descriptors to decide whether to call
'setns'.
* tests/containers.scm ("container-excursion, same namespace"): New test.

grafts: Apply the right grafts in the presence of multiple outputs.

Fixes <http://bugs.gnu.org/24712>.

* guix/grafts.scm (cumulative-grafts): Add grafts for all the outputs of
DRV.
* tests/grafts.scm ("graft-derivation, replaced derivation has multiple
outputs"): New test.

guix build: Add '--with-graft'.

* guix/scripts/build.scm (transform-package-inputs/graft): New procedure.
(%transformations): Add 'with-graft'.
(%transformation-options): Likewise.
(show-transformation-options-help): Document it.
* tests/scripts-build.scm ("options->transformation, with-graft"): New
test.
* doc/guix.texi (Package Transformation Options): Document it.

Merge branch 'master' into core-updates

graph: Add '%referrer-node-type'.

* guix/scripts/graph.scm (ensure-store-items): New procedure.
(%reference-node-type)[convert]: Use it.
(non-derivation-referrers): New procedure.
(%referrer-node-type): New variable.
(%node-types): Add it.
* tests/graph.scm ("referrer DAG"): New test.
* doc/guix.texi (Invoking guix graph): Document it.