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lsp-doc.el
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lsp-doc.el
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;;; lsp-doc.el --- LSP doc generator -*- lexical-binding: t; -*-
;; Keywords: languages, tool
;; Package-Requires: ((emacs "26.1") (lsp-mode "7.0.1") (emacs "26.1") (dash "2.18.0") (f "0.20.0") (ht "2.3") (spinner "1.7.3") (markdown-mode "2.3") (lv "0") (xref "1.6.3"))
;; Version: 8.0.0
;; URL: https://github.com/emacs-lsp/lsp-mode
;; This program 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.
;; This program 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 <https://www.gnu.org/licenses/>.
;;; Commentary:
;; Tool for convert elisp files into documentation.
;;; Code:
(require 'f)
(require 's)
(require 'dash)
(require 'seq)
(require 'ht)
(require 'lsp-mode)
;; Clients
(defun lsp-doc--load-all-lsps ()
"Load all supported LSPs from lsp-mode."
(seq-do (lambda (package)
(require package nil t))
lsp-client-packages))
(defun lsp-doc--load-all-features ()
"Load all features from lsp-mode."
(->> (f-files "../")
(-map #'f-filename)
(--filter (and (s-suffix? ".el" it)
(not (s-prefix? "." it))))
(-map (lambda (package)
(require (intern (f-no-ext package)) nil t)))))
(defun lsp-doc--clients ()
"Return a list of hash-map of all clients."
(let ((json-array-type 'vector)
(json-object-type 'hash-table)
(json-false nil))
(json-read-file "lsp-clients.json")))
(defun lsp-doc--build-manual-doc (client-name)
"Build manual documentation for CLIENT-NAME."
(let ((manual-doc-file (file-truename (concat "../manual-language-docs/lsp-" client-name ".md"))))
(when (file-exists-p manual-doc-file)
(with-temp-buffer
(insert-file-contents manual-doc-file)
(buffer-string)))))
(defun lsp-doc--decorate-value (key value client-name)
"For a given KEY return a decorated VALUE for CLIENT-NAME."
(or (pcase key
("installation"
(when value
(format "`%s`" value)))
("lsp-install-server"
(when value
(format "This Server supports automatic install.\nInstall this language server with <kbd>M-x</kbd>`lsp-install-server`<kbd>RET</kbd>`%s`<kbd>RET</kbd>." value)))
("installation-url"
(when value
(format "\n\nFor more instructions on how to install manually, check [here](%s)." value)))
("manual-documentation"
(lsp-doc--build-manual-doc client-name))
(_ value))
""))
(defun lsp-doc--replace-client-placeholders (client)
"Replace found placeholders for a CLIENT."
(while (re-search-forward "{{\\([][:word:]\\[.-]+\\)}}" nil t)
(let* ((key (match-string 1))
(value (gethash key client))
(client-name (gethash "name" client)))
(replace-match (lsp-doc--decorate-value key value client-name)))))
(defun lsp-doc--variables (name)
"Return all custom variables for a NAME."
(let* ((group (intern (concat "lsp-" name)))
(custom-group (get group 'custom-group)))
(->> custom-group
(seq-filter (lambda (p)
(and (consp p)
(or (eq (cadr p) 'custom-variable)
(eq (cadr p) 'custom-face)))))
(seq-map (apply-partially #'car))
(seq-sort #'string<))))
(defun lsp-doc--pretty-default-value (variable)
"Return default value for a VARIABLE formatted."
(let ((default (if (facep variable)
(face-default-spec variable)
(default-value variable)))
(type (get variable 'custom-type)))
(if (and (memq type '(file directory))
(stringp default))
(format "%s" (f-short default))
(format "%s" default))))
(defun lsp-doc--variable->value (variable key)
"Return a decorated value for a VARIABLE, KEY and a CLIENT."
(pcase key
("name" (symbol-name variable))
("type" (if (facep variable)
"face"
(format "%s" (get variable 'custom-type))))
("default" (lsp-doc--pretty-default-value variable))
("documentation" (->> (or (documentation-property variable 'variable-documentation)
(documentation-property variable 'face-documentation)
"")
(replace-regexp-in-string "‘\\|’" "`")))
(_ "")))
(defun lsp-doc--add-client-variables (client file)
"Add CLIENT variables to FILE."
(-let* (((&hash "name" client-name "common-group-name" common-group-name) client)
(client-variables (append (when common-group-name
(lsp-doc--variables common-group-name))
(lsp-doc--variables client-name))))
(--each client-variables
(with-temp-buffer
(insert-file-contents "../template/lsp-var.md")
(while (re-search-forward "{{\\([][:word:]\\[.-]+\\)}}" nil t)
(let* ((key (match-string 1))
(value (lsp-doc--variable->value it key)))
(replace-match value t t)))
(append-to-file (point-min) (point-max) file)))))
(defun lsp-doc--generate-for-client (client)
"Generate documentation for CLIENT."
(-let* (((&hash "name") client)
((&hash "common-group-name") client)
(file (file-truename (concat "page/lsp-" name ".md"))))
(unless (file-exists-p file)
(copy-file "template/lsp-client.md" file)
(with-current-buffer (find-file-noselect file)
(goto-char (point-min))
(-if-let* ((base-file (or (symbol-file (intern (format "lsp-%s" (or name common-group-name))))
(when common-group-name
(expand-file-name (format "clients/lsp-%s.el" common-group-name) "../.."))
(expand-file-name (format "clients/lsp-%s.el" name) "../.."))))
(insert (format "---\nroot_file: %s\n---\n" (file-relative-name base-file "../.."))))
(lsp-doc--replace-client-placeholders client)
(save-buffer 0)
(lsp-doc--add-client-variables client file)))))
;; Features
(defvar lsp-doc--core-features
'(("Core" . "mode")
("Completion" . "completion")
("Diagnostics" . "diagnostics")
("Headerline" . "headerline")
("Modeline" . "modeline")
("Lens" . "lens")
("Icons" . "icons")
("Semantic tokens" . "semantic-tokens"))
"A list of hash-map of all core features.
Make sure to make mkdocs.yml updated as well.")
(defvar lsp-doc--extension-features
'(("Dired" . "dired")
("Iedit" . "iedit")
("Ido" . "ido"))
"A list of hash-map of all extension features.
Make sure to make mkdocs.yml updated as well.")
(defun lsp-doc--add-feature-variables (group dest-file)
"Add FEATURE variables from GROUP to DEST-FILE."
(if-let ((variables (lsp-doc--variables group)))
(--each variables
(with-temp-buffer
(insert-file-contents "../../template/lsp-var.md")
(while (re-search-forward "{{\\([][:word:]\\[.-]+\\)}}" nil t)
(let* ((key (match-string 1))
(value (lsp-doc--variable->value it key)))
(replace-match value t t)))
(append-to-file (point-min) (point-max) dest-file)))
(with-temp-buffer
(insert "No custom variables available.\n\n")
(append-to-file (point-min) (point-max) dest-file))))
(defun lsp-doc--add-feature-core-settings ()
"Add the core features settings."
(-each lsp-doc--core-features
(-lambda ((feature . group))
(let* ((filename (concat "page/settings/" group ".md"))
(_ (write-region "" nil filename))
(dest-file (file-truename filename)))
(with-current-buffer (find-file-noselect dest-file)
(with-temp-buffer
(-if-let* ((base-file (symbol-file (car (lsp-doc--variables group)))))
(insert (format "---\nroot_file: %s\n---\n" (file-relative-name base-file "../../.."))))
(insert "# " feature "\n\n")
(append-to-file (point-min) (point-max) dest-file))
(lsp-doc--add-feature-variables group dest-file)
(save-buffer 0))))))
(defun lsp-doc--add-feature-extension-settings ()
"Add the extension feature settings."
(-each lsp-doc--extension-features
(-lambda ((feature . group))
(let* ((filename (concat "page/settings/" group ".md"))
(_ (write-region "" nil filename))
(dest-file (file-truename filename)))
(with-current-buffer (find-file-noselect dest-file)
(with-temp-buffer
(-if-let* ((base-file (symbol-file (car (lsp-doc--variables group)))))
(insert (format "---\nroot_file: %s\n---\n" (file-relative-name base-file "../../.."))))
(insert "# " feature "\n\n")
(append-to-file (point-min) (point-max) dest-file))
(lsp-doc--add-feature-variables group dest-file)
(save-buffer 0))))))
(defun lsp-doc--generate-feature-settings ()
"Generate core documentation for features."
(unless (file-exists-p "page/settings")
(make-directory "page/settings" t))
(lsp-doc--add-feature-core-settings)
(lsp-doc--add-feature-extension-settings))
;; Public
(defun lsp-doc-generate ()
"Generate documentation for all supported LSPs."
(interactive)
(lsp-doc--load-all-lsps)
(lsp-doc--load-all-features)
(seq-doseq (client (lsp-doc--clients))
(lsp-doc--generate-for-client client))
(lsp-doc--generate-feature-settings))
(provide 'lsp-doc)
;;; lsp-doc.el ends here