utils: Add 'switch-symlinks', moved from (guix ui). * guix/ui.scm (switch-symlinks): Move to... * guix/utils.scm: ... here. New procedure. * guix/scripts/pull.scm: Use it.
guix system: Add the 'list-generations' command. * guix/scripts/system.scm (display-system-generation, list-generations): New procedures. (process-action): Clarify docstring. (process-command): New procedure. (guix-system)[parse-sub-command]: Add 'list-generations' Call 'process-command' instead of 'process-action'. * doc/guix.texi (Using the Configuration System): Mention generations, rollback, and 'list-generations'. (Invoking guix system): Document 'list-generations'.
guix system: Factorize boot parameter parsing. * guix/scripts/system.scm (<boot-parameters>): New record type. (read-boot-parameters): New procedure. (previous-grub-entries)[system->grub-entry]: Use it.
ui: Add procedures to display a profile generation. * 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.
utils: Add 'readlink*'. * guix/scripts/package.scm (readlink*): Move to... * guix/utils.scm (readlink*): ... here. New procedure.
guix system: Extract action processing. * guix/scripts/system.scm (process-action): New procedure. Extracted from... (guix-system): ... here. Use it.
ui: Add 'matching-generations'. * guix/scripts/package.scm (matching-generations): Move to... * guix/ui.scm (matching-generations): ... here.
doc: Add a REPL example. * doc/contributing.texi (Running Guix Before It Is Installed): Add REPL example. * doc/emacs.texi (Emacs General info): Add @cindex.
gnu: Add python-file. * gnu/packages/python.scm (python-file, python2-file): New variables.
gnu: Add RPM. * gnu/packages/package-management.scm (rpm): New variable. * gnu/packages/backup.scm (libarchive): Add comment.
gnu: racket: Update to 6.2.1. * gnu/packages/scheme.scm (racket): Update to 6.2.1.
gnu: haskell: Remove CONFIG_SHELL patches. A previous commit to the haskell-build-system made sure that if necessary, the CONFIG_SHELL environment variable is set. That obviates the individual patches applied to some packages. Remove them. * gnu/packages/haskell.scm (ghc-network, ghc-old-time, ghc-sdl-image, ghc-sdl-mixer, ghc-sdl, ghc-unix-time, ghc-x11)[arguments]: Remove ‘fix-/bin/sh’ phase.
gnu: ghc-async: Fix description formatting. * gnu/packages/haskell.scm (ghc-async): Formatting.
build-system/haskell: CONFIG_SHELL env variable. For Cabal packages with "build-type: Configure", a configure shell script is run to set up build parameters. These scripts need the CONFIG_SHELL environment variable to be set to function properly. * guix/build/haskell-build-system.scm (configure): Set CONFIG_SHELL if necessary.
scripts: environment: Add --container option. * 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.
gnu: youtube-dl: Upgrade to 2015.10.24. * gnu/packages/video.scm (youtube-dl): Upgrade to 2015.10.24.
gnu: linux-libre: Update to 4.2.4. * gnu/packages/linux.scm (linux-libre): Update to 4.2.4.
import: hackage: Fix grammar. Minor clarification regarding the test-dependencies command line option. * guix/scripts/import/hackage.scm (show-help): Minor grammatical fix.
import: hackage: Update GHC libraries for 7.10.2. Update ghc-standard-libraries to match the output of `ghc-pkg list` when using GHC 7.10.2. * guix/import/hackage.scm (ghc-standard-libraries): Sort and update list of core GHC libraries.
gnu: Add Raincat. * gnu/packages/games.scm (raincat): New variable.