From c879b5520718726366a5afd83143315a16ab29a7 Mon Sep 17 00:00:00 2001 From: Alex Kost Date: Sun, 9 Nov 2014 11:03:39 +0300 Subject: [PATCH 3/3] emacs: Add "Source" field to 'guix-info' buffers. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Suggested by Ludovic Courtès. * emacs/guix-info.el (guix-info-insert-methods, guix-info-displayed-params): Add 'source' parameter. (guix-package-info-source): New face. (guix-package-info-find-source-p): New variable. (guix-package-source): New button type. (guix-info-redisplay-entries, guix-package-info-insert-source-url, guix-package-info-show-source, guix-package-info-insert-source): New procedures. * emacs/guix-base.el (guix-param-titles): Add 'source' parameter. (guix-package-source-path, guix-package-source-build-derivation): New procedures. * emacs/guix-main.scm (%package-param-alist): Add 'source' parameter. (package-source-names, package-source-derivation->store-path, package-source-path, package-source-build-derivation): New procedures. --- emacs/guix-base.el | 20 +++++++++ emacs/guix-info.el | 116 +++++++++++++++++++++++++++++++++++++++++++++++++--- emacs/guix-main.scm | 49 ++++++++++++++++++++++ 3 files changed, 179 insertions(+), 6 deletions(-) diff --git a/emacs/guix-base.el b/emacs/guix-base.el index 784474e..a542a0c 100644 --- a/emacs/guix-base.el +++ b/emacs/guix-base.el @@ -82,6 +82,7 @@ Interactively, prompt for PATH. With prefix, use (id . "ID") (name . "Name") (version . "Version") + (source . "Source") (license . "License") (synopsis . "Synopsis") (description . "Description") @@ -100,6 +101,7 @@ Interactively, prompt for PATH. With prefix, use (id . "ID") (name . "Name") (version . "Version") + (source . "Source") (license . "License") (synopsis . "Synopsis") (description . "Description") @@ -1008,6 +1010,24 @@ Each element from GENERATIONS is a generation number." 'switch-to-generation profile generation) operation-buffer))) +(defun guix-package-source-path (package-id) + "Return a store file path to a source of a package PACKAGE-ID." + (message "Calculating the source derivation ...") + (guix-eval-read + (guix-make-guile-expression + 'package-source-path package-id))) + +(defun guix-package-source-build-derivation (package-id) + "Build source derivation of a package PACKAGE-ID." + (when (or (not guix-operation-confirm) + (guix-operation-prompt)) + (guix-eval-in-repl + (guix-make-guile-expression + 'package-source-build-derivation + package-id + :use-substitutes? (or guix-use-substitutes 'f) + :dry-run? (or guix-dry-run 'f))))) + ;;; Pull diff --git a/emacs/guix-info.el b/emacs/guix-info.el index edb4450..bd56937 100644 --- a/emacs/guix-info.el +++ b/emacs/guix-info.el @@ -1,4 +1,4 @@ -;;; guix-info.el --- Info buffers for displaying entries +;;; guix-info.el --- Info buffers for displaying entries -*- lexical-binding: t -*- ;; Copyright © 2014 Alex Kost @@ -24,7 +24,6 @@ ;;; Code: -(require 'guix-history) (require 'guix-base) (require 'guix-utils) @@ -107,6 +106,8 @@ number of characters, it will be split into several lines.") guix-info-insert-title-simple) (outputs guix-package-info-insert-outputs guix-info-insert-title-simple) + (source guix-package-info-insert-source + guix-info-insert-title-simple) (home-url guix-info-insert-url) (inputs guix-package-info-insert-inputs) (native-inputs guix-package-info-insert-native-inputs) @@ -121,6 +122,8 @@ number of characters, it will be split into several lines.") (name guix-package-info-name) (version guix-output-info-insert-version) (output guix-output-info-insert-output) + (source guix-package-info-insert-source + guix-info-insert-title-simple) (path guix-package-info-insert-output-path guix-info-insert-title-simple) (dependencies guix-package-info-insert-output-dependencies @@ -157,10 +160,11 @@ is a function, this function is called with parameter title as argument.") (defvar guix-info-displayed-params - '((package name version synopsis outputs location home-url + '((package name version synopsis outputs source location home-url license inputs native-inputs propagated-inputs description) - (output name version output synopsis path dependencies location home-url - license inputs native-inputs propagated-inputs description) + (output name version output synopsis source path dependencies location + home-url license inputs native-inputs propagated-inputs + description) (installed path dependencies) (generation number prev-number current time path)) "List of displayed entry parameters. @@ -190,6 +194,17 @@ LEVEL is 1 by default." "Insert `guix-info-indent' spaces LEVEL times (1 by default)." (insert (guix-info-get-indent level))) +(defun guix-info-redisplay-entries (entries) + "Display entries in the current info buffer. +Substitute `guix-entries' with ENTRIES." + (let ((point (point)) + (window-start (window-start))) + (guix-set-buffer guix-profile entries guix-buffer-type + guix-entry-type guix-search-type + guix-search-vals t t) + (goto-char point) + (set-window-start nil window-start))) + (defun guix-info-insert-entries (entries entry-type) "Display ENTRIES of ENTRY-TYPE in the current info buffer. ENTRIES should have a form of `guix-entries'." @@ -334,7 +349,10 @@ VAL is a list, call the function on each element of this list." 'face 'guix-info-file-path 'help-echo "Find file" 'action (lambda (btn) - (find-file (button-label btn)))) + (let ((file (button-label btn))) + (if (file-exists-p file) + (find-file file) + (message "File does not exist."))))) (define-button-type 'guix-url :supertype 'guix @@ -652,6 +670,92 @@ ENTRY is an alist with package info." 'guix-package-info-insert-output-path) +;;; Inserting source + +(defface guix-package-info-source + '((t :inherit link :underline nil)) + "Face used for a source URL of a package." + :group 'guix-package-info) + +(defcustom guix-package-info-find-source-p nil + "If non-nil, find a source file after pressing \"Show\" button. +If nil, just display the source file path without finding." + :type 'boolean + :group 'guix-package-info) + +(define-button-type 'guix-package-source + :supertype 'guix + 'face 'guix-package-info-source + 'help-echo "" + 'action (lambda (_) + ;; As a source may not be a real URL (e.g., "mirror://..."), + ;; no action is bound to a source button. + (message "Yes, this is the source URL. What did you expect?"))) + +(defun guix-package-info-insert-source-url (url &optional _) + "Make button from source URL and insert it at point." + (guix-insert-button url 'guix-package-source)) + +(defun guix-package-info-show-source (entry-id package-id) + "Show file name of a package source in the current info buffer. +Find the file if needed (see `guix-package-info-find-source-p'). +ENTRY-ID is an ID of the current entry (package or output). +PACKAGE-ID is an ID of the package which source to show." + (let* ((entry (guix-get-entry-by-id entry-id guix-entries)) + (file (guix-get-key-val entry 'source-file))) + ;; Do not request a source file name if it has already been received. + (unless file + (setq file (guix-package-source-path package-id)) + (or file + (error "Couldn't define file path of the package source")) + (let* ((new-entry (cons (cons 'source-file file) + entry)) + (entries (cl-substitute-if + new-entry + (lambda (entry) + (equal (guix-get-key-val entry 'id) entry-id)) + guix-entries + :count 1))) + (guix-info-redisplay-entries entries))) + (if (file-exists-p file) + (if guix-package-info-find-source-p + (find-file file) + (message "The source store path is displayed.")) + (message "The source does not exist in the store.")))) + +(defun guix-package-info-insert-source (source entry) + "Insert SOURCE from package ENTRY at point. +SOURCE is a list of URLs." + (guix-info-insert-indent) + (if (null source) + (guix-format-insert nil) + (let* ((entry-id (guix-get-key-val entry 'id)) + (package-id (or (guix-get-key-val entry 'package-id) + entry-id))) + (guix-info-insert-action-button + "Show" + (lambda (btn) + (guix-package-info-show-source (button-get btn 'entry-id) + (button-get btn 'package-id))) + "Show the source store path of the current package" + 'entry-id entry-id + 'package-id package-id) + (guix-info-insert-indent) + (guix-info-insert-action-button + "Download" + (lambda (btn) + (guix-package-source-build-derivation + (button-get btn 'package-id))) + "Build the source derivation (download the source if needed)" + 'package-id package-id) + (let ((file (guix-get-key-val entry 'source-file))) + (when file + (guix-info-insert-val-simple file + #'guix-info-insert-file-path))) + (guix-info-insert-val-simple source + #'guix-package-info-insert-source-url)))) + + ;;; Displaying outputs (guix-define-buffer-type info output diff --git a/emacs/guix-main.scm b/emacs/guix-main.scm index 62eeabb..e0bdccb 100644 --- a/emacs/guix-main.scm +++ b/emacs/guix-main.scm @@ -46,10 +46,12 @@ (ice-9 vlist) (ice-9 match) (srfi srfi-1) + (srfi srfi-2) (srfi srfi-11) (srfi srfi-19) (srfi srfi-26) (guix) + (guix git-download) (guix packages) (guix profiles) (guix licenses) @@ -252,6 +254,18 @@ Example: (license-name license))) (list-maybe (package-license package)))) +(define (package-source-names package) + "Return a list of source names (URLs) of the PACKAGE." + (let ((source (package-source package))) + (and (origin? source) + (filter-map (lambda (uri) + (cond ((string? uri) + uri) + ((git-reference? uri) + (git-reference-url uri)) + (else #f))) + (list-maybe (origin-uri source)))))) + (define (package-unique? package) "Return #t if PACKAGE is a single package with such name/version." (null? (cdr (packages-by-name (package-name package) @@ -263,6 +277,7 @@ Example: (name . ,package-name) (version . ,package-version) (license . ,package-license-names) + (source . ,package-source-names) (synopsis . ,package-synopsis) (description . ,package-description) (home-url . ,package-home-page) @@ -867,3 +882,37 @@ OUTPUTS is a list of package outputs (may be an empty list)." GENERATIONS is a list of generation numbers." (with-store store (delete-generations store profile generations))) + +(define (package-source-derivation->store-path derivation) + "Return a store path of the package source DERIVATION." + (match (derivation-outputs derivation) + ;; Source derivation is always (("out" . derivation)). + (((_ . output-drv)) + (derivation-output-path output-drv)) + (_ #f))) + +(define (package-source-path package-id) + "Return a store file path to a source of a package PACKAGE-ID." + (and-let* ((package (package-by-id package-id)) + (source (package-source package))) + (with-store store + (package-source-derivation->store-path + (package-source-derivation store source))))) + +(define* (package-source-build-derivation package-id #:key dry-run? + (use-substitutes? #t)) + "Build source derivation of a package PACKAGE-ID." + (and-let* ((package (package-by-id package-id)) + (source (package-source package))) + (with-store store + (let* ((derivation (package-source-derivation store source)) + (derivations (list derivation))) + (set-build-options store + #:use-substitutes? use-substitutes?) + (show-what-to-build store derivations + #:use-substitutes? use-substitutes? + #:dry-run? dry-run?) + (unless dry-run? + (build-derivations store derivations)) + (format #t "The source store path: ~a~%" + (package-source-derivation->store-path derivation)))))) -- 2.1.2