me
/
guix
Archived
1
0
Fork 0
This repository has been archived on 2024-08-07. You can view files and clone it, but cannot push or open issues/pull-requests.
guix/emacs/guix-hydra.el

368 lines
13 KiB
EmacsLisp
Raw Blame History

This file contains invisible Unicode characters!

This file contains invisible Unicode characters that may be processed differently from what appears below. If your use case is intentional and legitimate, you can safely ignore this warning. Use the Escape button to reveal hidden characters.

;;; guix-hydra.el --- Common code for interacting with Hydra -*- lexical-binding: t -*-
;; Copyright © 2015 Alex Kost <alezost@gmail.com>
;; This file is part of GNU Guix.
;; GNU Guix is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Guix is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; This file provides some general code for 'list'/'info' interfaces for
;; Hydra (Guix build farm).
;;; Code:
(require 'json)
(require 'guix-buffer)
(require 'guix-entry)
(require 'guix-utils)
(require 'guix-help-vars)
(guix-define-groups hydra)
(defvar guix-hydra-job-regexp
(concat ".*\\." (regexp-opt guix-help-system-types) "\\'")
"Regexp matching a full name of Hydra job (including system).")
(defun guix-hydra-job-name-specification (name version)
"Return Hydra's job name specification by NAME and VERSION."
(concat name "-" version))
(defun guix-hydra-message (entries search-type &rest _)
"Display a message after showing Hydra ENTRIES."
;; XXX Add more messages maybe.
(when (null entries)
(if (eq search-type 'fake)
(message "The update is impossible due to lack of Hydra API.")
(message "Hydra has returned no results."))))
(defun guix-hydra-list-describe (ids)
"Describe 'hydra' entries with IDS (list of identifiers)."
(guix-buffer-display-entries
(guix-entries-by-ids ids (guix-buffer-current-entries))
'info (guix-buffer-current-entry-type)
;; Hydra does not provide an API to receive builds/jobsets by
;; IDs/names, so we use a 'fake' search type.
'(fake)
'add))
;;; Readers
(defvar guix-hydra-projects
'("gnu" "guix")
"List of available Hydra projects.")
(guix-define-readers
:completions-var guix-hydra-projects
:single-reader guix-hydra-read-project
:single-prompt "Project: ")
(guix-define-readers
:single-reader guix-hydra-read-jobset
:single-prompt "Jobset: ")
(guix-define-readers
:single-reader guix-hydra-read-job
:single-prompt "Job: ")
(guix-define-readers
:completions-var guix-help-system-types
:single-reader guix-hydra-read-system
:single-prompt "System: ")
;;; Defining URLs
(defvar guix-hydra-url "http://hydra.gnu.org"
"URL of the Hydra build farm.")
(defun guix-hydra-url (&rest url-parts)
"Return Hydra URL."
(apply #'concat guix-hydra-url "/" url-parts))
(defun guix-hydra-api-url (type args)
"Return URL for receiving data using Hydra API.
TYPE is the name of an allowed method.
ARGS is alist of (KEY . VALUE) pairs.
Skip ARG, if VALUE is nil or an empty string."
(declare (indent 1))
(let* ((fields (mapcar
(lambda (arg)
(pcase arg
(`(,key . ,value)
(unless (or (null value)
(equal "" value))
(concat (guix-hexify key) "="
(guix-hexify value))))
(_ (error "Wrong argument '%s'" arg))))
args))
(fields (mapconcat #'identity (delq nil fields) "&")))
(guix-hydra-url "api/" type "?" fields)))
;;; Receiving data from Hydra
(defun guix-hydra-receive-data (url)
"Return output received from URL and processed with `json-read'."
(with-temp-buffer
(url-insert-file-contents url)
(goto-char (point-min))
(let ((json-key-type 'symbol)
(json-array-type 'list)
(json-object-type 'alist))
(json-read))))
(defun guix-hydra-get-entries (entry-type search-type &rest args)
"Receive ENTRY-TYPE entries from Hydra.
SEARCH-TYPE is one of the types defined by `guix-hydra-define-interface'."
(unless (eq search-type 'fake)
(let* ((url (apply #'guix-hydra-search-url
entry-type search-type args))
(raw-entries (guix-hydra-receive-data url))
(entries (guix-hydra-filter-entries
raw-entries
(guix-hydra-filters entry-type))))
entries)))
;;; Filters for processing raw entries
(defun guix-hydra-filter-entries (entries filters)
"Filter ENTRIES using FILTERS.
Call `guix-modify' on each entry from ENTRIES."
(mapcar (lambda (entry)
(guix-modify entry filters))
entries))
(defun guix-hydra-filter-names (entry name-alist)
"Replace names of ENTRY parameters using NAME-ALIST.
Each element of NAME-ALIST is (OLD-NAME . NEW-NAME) pair."
(mapcar (lambda (param)
(pcase param
(`(,name . ,val)
(let ((new-name (guix-assq-value name-alist name)))
(if new-name
(cons new-name val)
param)))))
entry))
(defun guix-hydra-filter-boolean (entry params)
"Convert number PARAMS (0/1) of ENTRY to boolean values (nil/t)."
(mapcar (lambda (param)
(pcase param
(`(,name . ,val)
(if (memq name params)
(cons name (guix-number->bool val))
param))))
entry))
;;; Wrappers for defined variables
(defvar guix-hydra-entry-type-data nil
"Alist with hydra entry type data.
This alist is filled by `guix-hydra-define-entry-type' macro.")
(defun guix-hydra-entry-type-value (entry-type symbol)
"Return SYMBOL's value for ENTRY-TYPE from `guix-hydra'."
(symbol-value (guix-assq-value guix-hydra-entry-type-data
entry-type symbol)))
(defun guix-hydra-search-url (entry-type search-type &rest args)
"Return URL to receive ENTRY-TYPE entries from Hydra."
(apply (guix-assq-value (guix-hydra-entry-type-value
entry-type 'search-types)
search-type)
args))
(defun guix-hydra-filters (entry-type)
"Return a list of filters for ENTRY-TYPE."
(guix-hydra-entry-type-value entry-type 'filters))
;;; Interface definers
(defmacro guix-hydra-define-entry-type (entry-type &rest args)
"Define general code for ENTRY-TYPE.
Remaining arguments (ARGS) should have a form [KEYWORD VALUE] ...
Required keywords:
- `:search-types' - default value of the generated
`guix-ENTRY-TYPE-search-types' variable.
Optional keywords:
- `:filters' - default value of the generated
`guix-ENTRY-TYPE-filters' variable.
- `:filter-names' - if specified, a generated
`guix-ENTRY-TYPE-filter-names' function for filtering these
names will be added to `guix-ENTRY-TYPE-filters' variable.
- `:filter-boolean-params' - if specified, a generated
`guix-ENTRY-TYPE-filter-boolean' function for filtering these
names will be added to `guix-ENTRY-TYPE-filters' variable.
The rest keyword arguments are passed to
`guix-define-entry-type' macro."
(declare (indent 1))
(let* ((entry-type-str (symbol-name entry-type))
(prefix (concat "guix-" entry-type-str))
(search-types-var (intern (concat prefix "-search-types")))
(filters-var (intern (concat prefix "-filters")))
(get-fun (intern (concat prefix "-get-entries"))))
(guix-keyword-args-let args
((search-types-val :search-types)
(filters-val :filters)
(filter-names-val :filter-names)
(filter-bool-val :filter-boolean-params))
`(progn
(defvar ,search-types-var ,search-types-val
,(format "\
Alist of search types and according URL functions.
Functions are used to define URL to receive '%s' entries."
entry-type-str))
(defvar ,filters-var ,filters-val
,(format "\
List of filters for '%s' parameters.
Each filter is a function that should take an entry as a single
argument, and should also return an entry."
entry-type-str))
,(when filter-bool-val
(let ((filter-bool-var (intern (concat prefix
"-filter-boolean-params")))
(filter-bool-fun (intern (concat prefix
"-filter-boolean"))))
`(progn
(defvar ,filter-bool-var ,filter-bool-val
,(format "\
List of '%s' parameters that should be transformed to boolean values."
entry-type-str))
(defun ,filter-bool-fun (entry)
,(format "\
Run `guix-hydra-filter-boolean' with `%S' variable."
filter-bool-var)
(guix-hydra-filter-boolean entry ,filter-bool-var))
(setq ,filters-var
(cons ',filter-bool-fun ,filters-var)))))
;; Do not move this clause up!: name filtering should be
;; performed before any other filtering, so this filter should
;; be consed after the boolean filter.
,(when filter-names-val
(let* ((filter-names-var (intern (concat prefix
"-filter-names")))
(filter-names-fun filter-names-var))
`(progn
(defvar ,filter-names-var ,filter-names-val
,(format "\
Alist of '%s' parameter names returned by Hydra API and names
used internally by the elisp code of this package."
entry-type-str))
(defun ,filter-names-fun (entry)
,(format "\
Run `guix-hydra-filter-names' with `%S' variable."
filter-names-var)
(guix-hydra-filter-names entry ,filter-names-var))
(setq ,filters-var
(cons ',filter-names-fun ,filters-var)))))
(defun ,get-fun (search-type &rest args)
,(format "\
Receive '%s' entries.
See `guix-hydra-get-entries' for details."
entry-type-str)
(apply #'guix-hydra-get-entries
',entry-type search-type args))
(guix-alist-put!
'((search-types . ,search-types-var)
(filters . ,filters-var))
'guix-hydra-entry-type-data ',entry-type)
(guix-define-entry-type ,entry-type
:parent-group guix-hydra
:parent-faces-group guix-hydra-faces
,@%foreign-args)))))
(defmacro guix-hydra-define-interface (buffer-type entry-type &rest args)
"Define BUFFER-TYPE interface for displaying ENTRY-TYPE entries.
This macro should be called after calling
`guix-hydra-define-entry-type' with the same ENTRY-TYPE.
ARGS are passed to `guix-BUFFER-TYPE-define-interface' macro."
(declare (indent 2))
(let* ((entry-type-str (symbol-name entry-type))
(buffer-type-str (symbol-name buffer-type))
(get-fun (intern (concat "guix-" entry-type-str
"-get-entries")))
(definer (intern (concat "guix-" buffer-type-str
"-define-interface"))))
`(,definer ,entry-type
:get-entries-function ',get-fun
:message-function 'guix-hydra-message
,@args)))
(defmacro guix-hydra-info-define-interface (entry-type &rest args)
"Define 'info' interface for displaying ENTRY-TYPE entries.
See `guix-hydra-define-interface'."
(declare (indent 1))
`(guix-hydra-define-interface info ,entry-type
,@args))
(defmacro guix-hydra-list-define-interface (entry-type &rest args)
"Define 'list' interface for displaying ENTRY-TYPE entries.
Remaining arguments (ARGS) should have a form [KEYWORD VALUE] ...
Optional keywords:
- `:describe-function' - default value of the generated
`guix-ENTRY-TYPE-list-describe-function' variable (if not
specified, use `guix-hydra-list-describe').
The rest keyword arguments are passed to
`guix-hydra-define-interface' macro."
(declare (indent 1))
(guix-keyword-args-let args
((describe-val :describe-function))
`(guix-hydra-define-interface list ,entry-type
:describe-function ,(or describe-val ''guix-hydra-list-describe)
,@args)))
(defvar guix-hydra-font-lock-keywords
(eval-when-compile
`((,(rx "(" (group (or "guix-hydra-define-entry-type"
"guix-hydra-define-interface"
"guix-hydra-info-define-interface"
"guix-hydra-list-define-interface"))
symbol-end)
. 1))))
(font-lock-add-keywords 'emacs-lisp-mode guix-hydra-font-lock-keywords)
(provide 'guix-hydra)
;;; guix-hydra.el ends here