emacs: Find packages in system profiles.

For a usual profile, packages are placed in a profile directory itself,
but for a system profile, packages are placed in 'profile'
sub-directory.  So we need to do some special cases for system profiles
to find packages there as well.

* emacs/guix-base.el (guix-packages-profile): New procedure.
  (guix-manifest-file): Use it.  Add optional 'system?' argument.
* emacs/guix-ui-generation.el (guix-system-generation?)
  (guix-generation-current-packages-profile):  New procedures.
  (guix-generation-packages, guix-generation-insert-packages): Remove
  'generation' argument.
  (guix-generation-packages-buffer): Add optional 'system?' argument.
  (guix-profile-generation-manifest-file)
  (guix-profile-generation-packages-buffer): Adjust accordingly.
* emacs/guix-main.scm (generation-package-specifications+paths): Rename to...
  (profile->specifications+paths): ... this.  Use a single 'profile' argument.
This commit is contained in:
Alex Kost 2016-01-04 19:11:30 +03:00
parent a0ad8ab01e
commit 2df17bd0ee
3 changed files with 50 additions and 24 deletions

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@ -1,6 +1,6 @@
;;; guix-base.el --- Common definitions -*- lexical-binding: t -*-
;; Copyright © 2014, 2015 Alex Kost <alezost@gmail.com>
;; Copyright © 2014, 2015, 2016 Alex Kost <alezost@gmail.com>
;; This file is part of GNU Guix.
@ -91,14 +91,25 @@ For the meaning of location, see `guix-find-location'."
"Return the file name of a PROFILE's GENERATION."
(format "%s-%s-link" profile generation))
(defun guix-manifest-file (profile &optional generation)
"Return the file name of a PROFILE's manifest.
If GENERATION number is specified, return manifest file name for
this generation."
(expand-file-name "manifest"
(if generation
(defun guix-packages-profile (profile &optional generation system?)
"Return a directory where packages are installed for the
PROFILE's GENERATION.
If SYSTEM? is non-nil, then PROFILE is considered to be a system
profile. Unlike usual profiles, for a system profile, packages
are placed in 'profile' subdirectory."
(let ((profile (if generation
(guix-generation-file profile generation)
profile)))
(if system?
(expand-file-name "profile" profile)
profile)))
(defun guix-manifest-file (profile &optional generation system?)
"Return the file name of a PROFILE's manifest.
See `guix-packages-profile'."
(expand-file-name "manifest"
(guix-packages-profile profile generation system?)))
;;;###autoload
(defun guix-edit (id-or-name)

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@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014, 2015 Alex Kost <alezost@gmail.com>
;;; Copyright © 2014, 2015, 2016 Alex Kost <alezost@gmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
@ -144,11 +144,10 @@ return two values: name and version. For example, for SPEC
(manifest-entries->package-specifications
(manifest-entries manifest))))
(define (generation-package-specifications+paths profile number)
"Return a list of package specifications and paths for generation NUMBER.
(define (profile->specifications+paths profile)
"Return a list of package specifications and paths for PROFILE.
Each element of the list is a list of the package specification and its path."
(let ((manifest (profile-manifest
(generation-file-name profile number))))
(let ((manifest (profile-manifest profile)))
(map (lambda (entry)
(list (manifest-entry->package-specification entry)
(manifest-entry-item entry)))

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@ -1,6 +1,6 @@
;;; guix-ui-generation.el --- Interface for displaying generations -*- lexical-binding: t -*-
;; Copyright © 2014, 2015 Alex Kost <alezost@gmail.com>
;; Copyright © 2014, 2015, 2016 Alex Kost <alezost@gmail.com>
;; This file is part of GNU Guix.
@ -78,6 +78,18 @@ Each element from GENERATIONS is a generation number."
'switch-to-generation* profile generation)
operation-buffer)))
(defun guix-system-generation? ()
"Return non-nil, if current generation is a system one."
(eq (guix-buffer-current-entry-type)
'system-generation))
(defun guix-generation-current-packages-profile (&optional generation)
"Return a directory where packages are installed for the
current profile's GENERATION."
(guix-packages-profile (guix-ui-current-profile)
generation
(guix-system-generation?)))
;;; Generation 'info'
@ -324,14 +336,13 @@ performance."
"Width of an output name \"column\".
This variable is used in auxiliary buffers for comparing generations.")
(defun guix-generation-packages (profile generation)
"Return a list of sorted packages installed in PROFILE's GENERATION.
(defun guix-generation-packages (profile)
"Return a list of sorted packages installed in PROFILE.
Each element of the list is a list of the package specification
and its store path."
(let ((names+paths (guix-eval-read
(guix-make-guile-expression
'generation-package-specifications+paths
profile generation))))
'profile->specifications+paths profile))))
(sort names+paths
(lambda (a b)
(string< (car a) (car b))))))
@ -360,8 +371,8 @@ Use the full PROFILE file name."
(indent-to guix-generation-output-name-width 2)
(insert path "\n"))
(defun guix-generation-insert-packages (buffer profile generation)
"Insert package outputs installed in PROFILE's GENERATION in BUFFER."
(defun guix-generation-insert-packages (buffer profile)
"Insert package outputs installed in PROFILE in BUFFER."
(with-current-buffer buffer
(setq buffer-read-only nil
indent-tabs-mode nil)
@ -369,9 +380,9 @@ Use the full PROFILE file name."
(mapc (lambda (name+path)
(guix-generation-insert-package
(car name+path) (cadr name+path)))
(guix-generation-packages profile generation))))
(guix-generation-packages profile))))
(defun guix-generation-packages-buffer (profile generation)
(defun guix-generation-packages-buffer (profile generation &optional system?)
"Return buffer with package outputs installed in PROFILE's GENERATION.
Create the buffer if needed."
(let ((buf-name (guix-generation-packages-buffer-name
@ -379,19 +390,24 @@ Create the buffer if needed."
(or (and (null guix-generation-packages-update-buffer)
(get-buffer buf-name))
(let ((buf (get-buffer-create buf-name)))
(guix-generation-insert-packages buf profile generation)
(guix-generation-insert-packages
buf
(guix-packages-profile profile generation system?))
buf))))
(defun guix-profile-generation-manifest-file (generation)
"Return the file name of a GENERATION's manifest.
GENERATION is a generation number of the current profile."
(guix-manifest-file (guix-ui-current-profile) generation))
(guix-manifest-file (guix-ui-current-profile)
generation
(guix-system-generation?)))
(defun guix-profile-generation-packages-buffer (generation)
"Insert GENERATION's package outputs in a buffer and return it.
GENERATION is a generation number of the current profile."
(guix-generation-packages-buffer (guix-ui-current-profile)
generation))
generation
(guix-system-generation?)))
;;; Interactive commands