Merge branch 'master' into core-updates

guix archive: Allow compilation with Guile 2.2.

* guix/scripts/archive.scm (export-from-store): Avoid shadowing the
top-level '_'.

Merge branch 'master' into python-tests

Merge remote-tracking branch 'origin/master' into core-updates

import: stackage: Avoid using (guix ui) in importer code.

* guix/import/stackage.scm (stackage->guix-package, stackage-lts-info-fetch):
  Raise 'message' condition instead of using 'leave' from (guix ui).
* guix/scripts/import/stackage.scm (guix-import-stackage): Handle conditions.

Merge branch 'master' into python-tests

Merge branch 'master' into core-updates

import: Add stackage importer and updater.

* guix/import/stackage.scm: New file.
* guix/scripts/import/stackage.scm: New file.
* Makefile.am (MODULES): Add new files.
* guix/scripts/import.scm (importers): Add "stackage".
* guix/scripts/refresh.scm (%updaters): Add %stackage-updater.
* doc/guix.texi (Invoking 'guix import'): Document the importer.
  (Invoking 'guix refresh'): Add stackage to option --type valid values.
* guix/import/hackage.scm (guix-package->hackage-name, hackage-fetch,
  hackage-source-url, hackage-cabal-url, hackage-package?): Export them.

file-systems: Add '%network-configuration-files' and '%network-file-mappings'.

* gnu/system/file-systems.scm (%network-configuration-files)
(%network-file-mappings): New variables.
* guix/scripts/environment.scm (%network-configuration-files): Remove.
(launch-environment/container): Refer to '%network-file-mappings'
instead of calling 'filter-map'.

file-systems: Add 'file-system-mapping->bind-mount'.

* gnu/system/file-systems.scm (file-system-mapping->bind-mount): New
procedure.
* gnu/system/linux-container.scm (mapping->file-system): Remove.
(containerized-operating-system)[mapping->fs]: Use
'file-system-mapping->bind-mount' instead of 'mapping->file-system'.
* guix/scripts/environment.scm (launch-environment/container): Likewise.

Merge branch 'master' into core-updates

lint: Use the "@" syntax for versioned packages in warnings.

* guix/scripts/lint.scm (emit-warning): Use the "@" syntax.

environment: Fix setting writable? on networking related files

* guix/scripts/environment.scm (launch-environment/container): Include the
  file name in the call to string=? when deciding if the file should be
  writable.

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

Use 'mlambda' instead of 'memoize'.

* gnu/packages.scm (find-newest-available-packages): Use 'mlambda'
instead of (memoize (lambda ...) ...).
* gnu/packages/bootstrap.scm (package-with-bootstrap-guile): Likewise.
* guix/build-system/gnu.scm (package-with-explicit-inputs)[rewritten-input]:
Likewise.
* guix/build-system/python.scm (package-with-explicit-python)[transform]:
Likewise.
* guix/derivations.scm (derivation->string): Likewise.
* guix/gnu-maintenance.scm (gnu-package?): Likewise.
* guix/modules.scm (module-file-dependencies): Likewise.
* guix/scripts/graph.scm (standard-package-set): Likewise.
* guix/scripts/lint.scm (official-gnu-packages*): Likewise.
* guix/store.scm (store-regexp*): Likewise.
* guix/utils.scm (location): Likewise.

Add (guix memoization).

* guix/combinators.scm (memoize): Remove.
* guix/memoization.scm: New file.
* Makefile.am (MODULES): Add it.
* gnu/packages.scm, gnu/packages/bootstrap.scm,
guix/build-system/gnu.scm, guix/build-system/python.scm,
guix/derivations.scm, guix/gnu-maintenance.scm,
guix/import/cran.scm, guix/import/elpa.scm,
guix/modules.scm, guix/scripts/build.scm,
guix/scripts/graph.scm, guix/scripts/lint.scm,
guix/store.scm, guix/utils.scm: Adjust imports accordingly.

copy: Use userauth-public-key/auto! for ssh authentification.

* guix/scripts/copy.scm (open-ssh-session): Replace userauth-agent! by
  userauth-public-key/auto!. This way, if ssh-agent is not run,
  default ssh key (~/.ssh/id_rsa) will be used as a fallback.

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

Merge branch 'master' into core-updates

container: Pass through TERM when calling exec.

* guix/scripts/container/exec.scm (guix-container-exec): Capture the value of
  the TERM environment variable, and pass it through to the container.  This
  means some applications now work where they did not before (e.g. htop), and
  others have more functionality, providing that the terminal was capable of
  enabling that functionality in the first place.

Co-authored-by: Ludovic Courtès <ludo@gnu.org>

Merge branch 'master' into core-updates

guix package: Honor the order of profiles when -p appears multiple times.

* guix/scripts/package.scm (process-query): Reverse the order of
PROFILES.
* tests/guix-package-net.sh: Test it with '--search-paths'.