647 lines
25 KiB
EmacsLisp
647 lines
25 KiB
EmacsLisp
;;; core/autoload/help.el -*- lexical-binding: t; -*-
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(defvar doom--help-major-mode-module-alist
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'((dockerfile-mode :tools docker)
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(agda2-mode :lang agda)
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(haxor-mode :lang assembly)
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(mips-mode :lang assembly)
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(nasm-mode :lang assembly)
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(c-mode :lang cc)
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(c++-mode :lang cc)
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(objc++-mode :lang cc)
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(crystal-mode :lang crystal)
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(lisp-mode :lang common-lisp)
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(csharp-mode :lang csharp)
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(clojure-mode :lang clojure)
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(clojurescript-mode :lang clojure)
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(graphql-mode :lang data)
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(toml-mode :lang data)
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(json-mode :lang data)
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(yaml-mode :lang data)
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(csv-mode :lang data)
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(dhall-mode :lang data)
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(erlang-mode :lang erlang)
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(elixir-mode :lang elixir)
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(elm-mode :lang elm)
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(emacs-lisp-mode :lang emacs-lisp)
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(ess-r-mode :lang ess)
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(ess-julia-mode :lang ess)
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(go-mode :lang go)
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(haskell-mode :lang haskell)
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(hy-mode :lang hy)
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(idris-mode :lang idris)
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(java-mode :lang java)
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(js2-mode :lang javascript)
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(rjsx-mode :lang javascript)
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(typescript-mode :lang javascript)
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(coffee-mode :lang javascript)
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(julia-mode :lang julia)
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(kotlin-mode :lang kotlin)
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(latex-mode :lang latex)
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(LaTeX-mode :lang latex)
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(ledger-mode :lang ledger)
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(lua-mode :lang lua)
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(markdown-mode :lang markdown)
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(gfm-mode :lang markdown)
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(nim-mode :lang nim)
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(nix-mode :lang nix)
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(taureg-mode :lang ocaml)
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(org-mode :lang org)
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(perl-mode :lang perl)
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(php-mode :lang php)
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(hack-mode :lang php)
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(plantuml-mode :lang plantuml)
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(purescript-mode :lang purescript)
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(python-mode :lang python)
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(restclient-mode :lang rest)
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(ruby-mode :lang ruby)
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(enh-ruby-mode :lang ruby)
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(rust-mode :lang rust)
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(scala-mode :lang scala)
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(sh-mode :lang sh)
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(swift-mode :lang swift)
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(web-mode :lang web)
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(css-mode :lang web)
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(scss-mode :lang web)
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(sass-mode :lang web)
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(less-css-mode :lang web)
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(stylus-mode :lang web)
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(terra-mode :lang terra))
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"An alist mapping major modes to Doom modules.
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This is used by `doom/help-modules' to auto-select the module corresponding to
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the current major-modea.")
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;;
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;;; Helpers
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;;;###autoload
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(defun doom-active-minor-modes ()
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"Return a list of active minor-mode symbols."
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(cl-loop for mode in minor-mode-list
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if (and (boundp mode) (symbol-value mode))
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collect mode))
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;;
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;;; Custom describe commands
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;;;###autoload (defalias 'doom/describe-autodefs #'doom/help-autodefs)
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;;;###autoload (defalias 'doom/describe-module #'doom/help-modules)
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;;;###autoload (defalias 'doom/describe-package #'doom/help-packages)
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;;;###autoload
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(defun doom/describe-active-minor-mode (mode)
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"Get information on an active minor mode. Use `describe-minor-mode' for a
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selection of all minor-modes, active or not."
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(interactive
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(list (completing-read "Minor mode: " (doom-active-minor-modes))))
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(let ((symbol
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(cond ((stringp mode) (intern mode))
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((symbolp mode) mode)
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((error "Expected a symbol/string, got a %s" (type-of mode))))))
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(if (fboundp symbol)
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(helpful-function symbol)
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(helpful-variable symbol))))
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;;;###autoload
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(defun doom/describe-symbol (symbol)
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"Show help for SYMBOL, a variable, function or macro."
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(interactive
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(list (helpful--read-symbol "Symbol: " #'helpful--bound-p)))
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(let* ((sym (intern-soft symbol))
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(bound (boundp sym))
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(fbound (fboundp sym)))
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(cond ((and sym bound (not fbound))
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(helpful-variable sym))
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((and sym fbound (not bound))
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(helpful-callable sym))
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((apropos (format "^%s\$" symbol)))
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((apropos (format "%s" symbol))))))
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;;
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;;; Documentation commands
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(defvar org-agenda-files)
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(defun doom--org-headings (files &optional depth include-files)
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"TODO"
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(require 'org)
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(let* ((default-directory doom-docs-dir)
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(org-agenda-files (mapcar #'expand-file-name (doom-enlist files)))
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(depth (if (integerp depth) depth)))
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(message "Loading search results...")
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(unwind-protect
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(delq
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nil
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(org-map-entries
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(lambda ()
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(cl-destructuring-bind (level _reduced-level _todo _priority text tags)
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(org-heading-components)
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(when (and (or (null depth)
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(<= level depth))
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(or (null tags)
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(not (string-match-p ":TOC" tags))))
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(let ((path (org-get-outline-path)))
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(list (string-join
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(list (string-join
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(append (when include-files
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(list (or (+org-get-global-property "TITLE")
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(file-relative-name (buffer-file-name)))))
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path
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(list (replace-regexp-in-string org-link-any-re "\\4" text)))
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" > ")
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tags)
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" ")
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(buffer-file-name)
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(point))))))
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t 'agenda))
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(mapc #'kill-buffer org-agenda-new-buffers)
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(setq org-agenda-new-buffers nil))))
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(defvar ivy-sort-functions-alist)
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;;;###autoload
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(defun doom-completing-read-org-headings (prompt files &optional depth include-files initial-input extra-candidates)
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"TODO"
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(let ((alist
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(append (doom--org-headings files depth include-files)
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extra-candidates))
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ivy-sort-functions-alist)
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(if-let (result (completing-read prompt alist nil nil initial-input))
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(cl-destructuring-bind (file &optional location)
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(cdr (assoc result alist))
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(find-file file)
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(cond ((functionp location)
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(funcall location))
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(location
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(goto-char location)))
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(ignore-errors
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(when (outline-invisible-p)
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(save-excursion
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(outline-previous-visible-heading 1)
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(org-show-subtree)))))
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(user-error "Aborted"))))
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;;;###autoload
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(defun doom/homepage ()
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"Open the doom emacs homepage in the browser."
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(interactive)
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(browse-url "https://doomemacs.org"))
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;;;###autoload
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(defun doom/help ()
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"Open Doom's user manual."
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(interactive)
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(find-file (expand-file-name "index.org" doom-docs-dir)))
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;;;###autoload
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(defun doom/help-search (&optional initial-input)
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"Search Doom's documentation and jump to a headline."
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(interactive)
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(doom-completing-read-org-headings
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"Find in Doom help: "
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(list "getting_started.org"
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"contributing.org"
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"troubleshooting.org"
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"tutorials.org"
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"faq.org")
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2 t initial-input
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(mapcar (lambda (x)
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(setcar x (concat "Doom Modules > " (car x)))
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x)
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(doom--help-modules-list))))
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;;;###autoload
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(defun doom/help-news-search (&optional initial-input)
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"Search headlines in Doom's newsletters."
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(interactive)
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(doom-completing-read-org-headings
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"Find in News: "
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(nreverse (doom-files-in (expand-file-name "news" doom-docs-dir)
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:match "/[0-9]"
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:relative-to doom-docs-dir))
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nil t initial-input))
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;;;###autoload
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(defun doom/help-faq (&optional initial-input)
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"Search Doom's FAQ and jump to a question."
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(interactive)
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(doom-completing-read-org-headings
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"Find in FAQ: " (list "faq.org")
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2 nil initial-input))
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;;;###autoload
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(defun doom/help-news ()
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"Open a Doom newsletter.
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The latest newsletter will be selected by default."
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(interactive)
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(let* ((default-directory (expand-file-name "news/" doom-docs-dir))
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(news-files (doom-files-in default-directory)))
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(find-file
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(read-file-name (format "Open Doom newsletter (current: v%s): "
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doom-version)
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default-directory
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(if (member doom-version news-files)
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doom-version
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(concat (mapconcat #'number-to-string
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(nbutlast (version-to-list doom-version) 1)
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".")
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".x"))
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t doom-version))))
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;;;###autoload
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(defun doom/help-autodefs (autodef)
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"Open documentation for an autodef.
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An autodef is a Doom concept. It is a function or macro that is always defined,
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whether or not its containing module is disabled (in which case it will safely
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no-op without evaluating its arguments). This syntactic sugar lets you use them
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without needing to check if they are available."
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(interactive
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(let* ((settings
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(cl-loop with case-fold-search = nil
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for sym being the symbols of obarray
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for sym-name = (symbol-name sym)
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if (and (or (functionp sym)
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(macrop sym))
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(string-match-p "[a-z]!$" sym-name))
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collect sym))
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(sym (symbol-at-point))
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(autodef
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(completing-read
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"Describe setter: "
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;; TODO Could be cleaner (refactor me!)
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(cl-loop with maxwidth = (apply #'max (mapcar #'length (mapcar #'symbol-name settings)))
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for def in (sort settings #'string-lessp)
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if (get def 'doom-module)
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collect
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(format (format "%%-%ds%%s" (+ maxwidth 4))
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def (propertize (format "%s %s" (car it) (cdr it))
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'face 'font-lock-comment-face))
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else if (and (string-match-p "^set-.+!$" (symbol-name def))
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(symbol-file def)
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(file-in-directory-p (symbol-file def) doom-core-dir))
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collect
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(format (format "%%-%ds%%s" (+ maxwidth 4))
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def (propertize (format "core/%s.el" (file-name-sans-extension (file-relative-name (symbol-file def) doom-core-dir)))
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'face 'font-lock-comment-face)))
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nil t
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(when (and (symbolp sym)
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(string-match-p "!$" (symbol-name sym)))
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(symbol-name sym)))))
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(list (and autodef (car (split-string autodef " "))))))
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(or (stringp autodef)
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(functionp autodef)
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(signal 'wrong-type-argument (list '(stringp functionp) autodef)))
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(let ((fn (if (functionp autodef)
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autodef
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(intern-soft autodef))))
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(or (fboundp fn)
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(error "'%s' is not a valid DOOM autodef" autodef))
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(if (fboundp 'helpful-callable)
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(helpful-callable fn)
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(describe-function fn))))
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(defun doom--help-modules-list ()
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(cl-loop for path in (cdr (doom-module-load-path 'all))
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for (cat . mod) = (doom-module-from-path path)
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for path = (or (doom-module-locate-path cat mod "README.org")
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(doom-module-locate-path cat mod))
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for format = (format "%s %s" cat mod)
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if (doom-module-p cat mod)
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collect (list format path)
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else if (and cat mod)
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collect (list (propertize format 'face 'font-lock-comment-face)
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path)))
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(defun doom--help-current-module-str ()
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(cond ((and buffer-file-name
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(eq major-mode 'emacs-lisp-mode)
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(file-in-directory-p buffer-file-name doom-private-dir)
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(save-excursion (goto-char (point-min))
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(re-search-forward "^\\s-*(doom! " nil t))
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(thing-at-point 'sexp t)))
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((save-excursion
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(require 'smartparens)
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(ignore-errors
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(sp-beginning-of-sexp)
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(unless (eq (char-after) ?\()
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(backward-char))
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(let ((sexp (sexp-at-point)))
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(when (memq (car-safe sexp) '(featurep! require!))
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(format "%s %s" (nth 1 sexp) (nth 2 sexp)))))))
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((when buffer-file-name
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(when-let (mod (doom-module-from-path buffer-file-name))
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(unless (memq (car mod) '(:core :private))
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(format "%s %s" (car mod) (cdr mod))))))
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((when-let (mod (cdr (assq major-mode doom--help-major-mode-module-alist)))
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(format "%s %s"
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(symbol-name (car mod))
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(symbol-name (cadr mod)))))))
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;;;###autoload
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(defun doom/help-modules (category module)
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"Open the documentation for a Doom module.
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CATEGORY is a keyword and MODULE is a symbol. e.g. :editor and 'evil.
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Automatically selects a) the module at point (in private init files), b) the
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module derived from a `featurep!' or `require!' call, c) the module that the
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current file is in, or d) the module associated with the current major mode (see
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`doom--help-major-mode-module-alist')."
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(interactive
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(mapcar #'intern
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(split-string
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(completing-read "Describe module: "
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(doom--help-modules-list) nil t nil nil
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(doom--help-current-module-str))
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" " t)))
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(cl-check-type category symbol)
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(cl-check-type module symbol)
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(cl-destructuring-bind (module-string path)
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(or (assoc (format "%s %s" category module) (doom--help-modules-list))
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(user-error "'%s %s' is not a valid module" category module))
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(unless (file-readable-p path)
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(error "Can't find or read %S module at %S" module-string path))
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(if (not (file-directory-p path))
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(find-file path)
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(if (y-or-n-p (format "The %S module has no README file. Explore its directory?"
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module-string))
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(doom-project-browse path)
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(user-error "Aborted module lookup")))))
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;;
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;;; `doom/help-packages'
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(defun doom--help-package-insert-button (label path &optional regexp)
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(declare (indent defun))
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(insert-text-button
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(string-trim label)
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'face 'link
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'follow-link t
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'action
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`(lambda (_)
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(unless (file-exists-p ,path)
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(user-error "Module doesn't exist"))
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(when (window-dedicated-p)
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(other-window 1))
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(let ((buffer (find-file ,path)))
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(when ,(stringp regexp)
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(with-current-buffer buffer
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(goto-char (point-min))
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(if (re-search-forward ,regexp nil t)
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(recenter)
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(message "Couldn't find the config block"))))))))
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(defun doom--help-package-configs (package)
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(let ((default-directory doom-emacs-dir))
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;; TODO Use ripgrep instead
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(split-string
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(cdr (doom-call-process
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"git" "grep" "--no-break" "--no-heading" "--line-number"
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(format "%s %s\\($\\| \\)"
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"\\(^;;;###package\\|(after!\\|(use-package!\\)"
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package)
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":(exclude)*.org"))
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"\n" t)))
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;;;###autoload
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(defun doom/help-packages (package)
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"Like `describe-package', but for packages installed by Doom modules.
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Only shows installed packages. Includes information about where packages are
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defined and configured.
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If prefix arg is present, refresh the cache."
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(interactive
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(let ((guess (or (function-called-at-point)
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(symbol-at-point))))
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(require 'finder-inf nil t)
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(require 'core-packages)
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(doom-initialize-packages)
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(let ((packages (delete-dups
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(append (mapcar #'car package-alist)
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(mapcar #'car package--builtins)
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(mapcar #'intern (hash-table-keys straight--build-cache))
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(mapcar #'car (doom-package-list 'all))
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nil))))
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(unless (memq guess packages)
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(setq guess nil))
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(list
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(intern
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(completing-read (if guess
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(format "Select package to search for (default %s): "
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guess)
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"Describe package: ")
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packages nil t nil nil
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(if guess (symbol-name guess))))))))
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(require 'core-packages)
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(doom-initialize-packages)
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(if (or (package-desc-p package)
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(and (symbolp package)
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(or (assq package package-alist)
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(assq package package--builtins))))
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(describe-package package)
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(help-setup-xref (list #'doom/help-packages package)
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(called-interactively-p 'interactive))
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(with-help-window (help-buffer)))
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(save-excursion
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(with-current-buffer (help-buffer)
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(let ((inhibit-read-only t)
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(indent (make-string 13 ? )))
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(goto-char (point-max))
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(if (re-search-forward "^ *Status: " nil t)
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(progn
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(end-of-line)
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(insert "\n"))
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(search-forward "\n\n" nil t))
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(package--print-help-section "Package")
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(insert (symbol-name package) "\n")
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(package--print-help-section "Source")
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(insert (or (pcase (doom-package-backend package)
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(`straight
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(format! "Straight (%s)\n%s"
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(let ((default-directory (straight--build-dir (symbol-name package))))
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(cdr
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(doom-call-process "git" "log" "-1" "--format=%D %h %ci")))
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(indent
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|
13 (string-trim
|
|
(pp-to-string
|
|
(doom-package-build-recipe package))))))
|
|
(`elpa
|
|
(format "[M]ELPA %s" (doom--package-url package)))
|
|
(`builtin "Built-in")
|
|
(_ (abbreviate-file-name (symbol-file package))))
|
|
"unknown")
|
|
"\n")
|
|
|
|
(when (gethash (symbol-name package) straight--build-cache)
|
|
(package--print-help-section "Modules")
|
|
(insert "Declared by the following Doom modules:\n")
|
|
(dolist (m (doom-package-get package :modules))
|
|
(insert indent)
|
|
(doom--help-package-insert-button
|
|
(format "%s %s" (car m) (or (cdr m) ""))
|
|
(pcase (car m)
|
|
(:core doom-core-dir)
|
|
(:private doom-private-dir)
|
|
(category (doom-module-path category (cdr m)))))
|
|
(insert "\n")))
|
|
|
|
(package--print-help-section "Configs")
|
|
(insert "This package is configured in the following locations:")
|
|
(dolist (location (doom--help-package-configs package))
|
|
(insert "\n" indent)
|
|
(insert-text-button
|
|
location
|
|
'face 'link
|
|
'follow-link t
|
|
'action
|
|
`(lambda (_)
|
|
(cl-destructuring-bind (file line _match)
|
|
',(split-string location ":")
|
|
(find-file (expand-file-name file doom-emacs-dir))
|
|
(goto-char (point-min))
|
|
(forward-line (1- (string-to-number line)))
|
|
(recenter)))))
|
|
|
|
(insert "\n\n")))))
|
|
|
|
(defvar doom--package-cache nil)
|
|
(defun doom--package-list ()
|
|
(let* ((guess (or (function-called-at-point)
|
|
(symbol-at-point))))
|
|
(require 'finder-inf nil t)
|
|
(unless package--initialized
|
|
(package-initialize t))
|
|
(let ((packages (or doom--package-cache
|
|
(progn
|
|
(message "Reading packages...")
|
|
(cl-delete-duplicates
|
|
(append (mapcar 'car package-alist)
|
|
(mapcar 'car package--builtins)
|
|
(mapcar 'car package-archive-contents)))))))
|
|
(setq doom--package-cache packages)
|
|
(unless (memq guess packages)
|
|
(setq guess nil))
|
|
(intern (completing-read (if guess
|
|
(format "Select package to search for (default %s): "
|
|
guess)
|
|
"Describe package: ")
|
|
packages nil t nil nil
|
|
(if guess (symbol-name guess)))))))
|
|
|
|
(defun doom--package-url (package)
|
|
(cond ((assq package package--builtins)
|
|
(user-error "Package is built into Emacs and cannot be looked up"))
|
|
((when-let (location (locate-library (symbol-name package)))
|
|
(with-temp-buffer
|
|
(insert-file-contents (concat (file-name-sans-extension location) ".el")
|
|
nil 0 4096)
|
|
(let ((case-fold-search t))
|
|
(when (re-search-forward " \\(?:URL\\|homepage\\|Website\\): \\(http[^\n]+\\)\n" nil t)
|
|
(match-string-no-properties 1))))))
|
|
((and (ignore-errors (eq (doom-package-backend package) 'quelpa))
|
|
(let* ((plist (cdr (doom-package-prop package :recipe)))
|
|
(fetcher (plist-get plist :fetcher)))
|
|
(pcase fetcher
|
|
(`git (plist-get plist :url))
|
|
(`github (format "https://github.com/%s.git" (plist-get plist :repo)))
|
|
(`gitlab (format "https://gitlab.com/%s.git" (plist-get plist :repo)))
|
|
(`bitbucket (format "https://bitbucket.com/%s" (plist-get plist :repo)))
|
|
(`wiki (format "https://www.emacswiki.org/emacs/download/%s"
|
|
(or (car-safe (doom-enlist (plist-get plist :files)))
|
|
(format "%s.el" package))))
|
|
(_ (plist-get plist :url))))))
|
|
((and (require 'package nil t)
|
|
(or package-archive-contents (doom-refresh-packages-maybe))
|
|
(pcase (package-desc-archive (cadr (assq package package-archive-contents)))
|
|
("org" "https://orgmode.org")
|
|
((or "melpa" "melpa-mirror")
|
|
(format "https://melpa.org/#/%s" package))
|
|
("gnu"
|
|
(format "https://elpa.gnu.org/packages/%s.html" package))
|
|
(archive
|
|
(if-let (src (cdr (assoc package package-archives)))
|
|
(format "%s" src)
|
|
(user-error "%S isn't installed through any known source (%s)"
|
|
package archive))))))
|
|
((user-error "Cannot find the homepage for %S" package))))
|
|
|
|
;;;###autoload
|
|
(defun doom/help-package-config (package)
|
|
"Jump to any `use-package!', `after!' or ;;;###package block for PACKAGE.
|
|
|
|
This only searches `doom-emacs-dir' (typically ~/.emacs.d) and does not include
|
|
config blocks in your private config."
|
|
(interactive (list (doom--package-list)))
|
|
(cl-destructuring-bind (file line _match)
|
|
(split-string
|
|
(completing-read
|
|
"Jump to config: "
|
|
(or (doom--help-package-configs package)
|
|
(user-error "This package isn't configured by you or Doom")))
|
|
":")
|
|
(find-file (expand-file-name file doom-emacs-dir))
|
|
(goto-char (point-min))
|
|
(forward-line (1- line))
|
|
(recenter)))
|
|
|
|
;;;###autoload
|
|
(defun doom/help-package-homepage (package)
|
|
"Open PACKAGE's repo or homepage in your browser."
|
|
(interactive (list (doom--package-list)))
|
|
(browse-url (doom--package-url package)))
|
|
|
|
;;;###autoload
|
|
(defun doom/help-search-load-path (query)
|
|
"Perform a text search on your `load-path'.
|
|
Uses the symbol at point or the current selection, if available."
|
|
(interactive
|
|
(let ((query
|
|
;; TODO Generalize this later; into something the lookup module and
|
|
;; project search commands could as well
|
|
(if (use-region-p)
|
|
(buffer-substring-no-properties (region-beginning) (region-end))
|
|
(or (symbol-name (symbol-at-point)) ""))))
|
|
(list (read-string
|
|
(format "Search load-path (default: %s): " query)
|
|
nil 'git-grep query))))
|
|
;; REVIEW Replace with deadgrep
|
|
(grep-find
|
|
(mapconcat
|
|
#'shell-quote-argument
|
|
(append (list "rg" "-L" "--search-zip" "--no-heading" "--color=never" query)
|
|
(cl-remove-if-not #'file-directory-p load-path))
|
|
" ")))
|
|
|
|
;; TODO factor our the duplicate code between this and the above
|
|
;;;###autoload
|
|
(defun doom/help-search-loaded-files (query)
|
|
"Perform a text search on your `load-path'.
|
|
Uses the symbol at point or the current selection, if available."
|
|
(interactive
|
|
(let ((query
|
|
;; TODO Generalize this later; into something the lookup module and
|
|
;; project search commands could as well.
|
|
(if (use-region-p)
|
|
(buffer-substring-no-properties (region-beginning) (region-end))
|
|
(or (symbol-name (symbol-at-point)) ""))))
|
|
(list (read-string
|
|
(format "Search load-path (default: %s): " query)
|
|
nil 'git-grep query))))
|
|
(unless (executable-find "rg")
|
|
(user-error "Can't find ripgrep on your system"))
|
|
(require 'elisp-refs)
|
|
;; REVIEW Replace with deadgrep
|
|
(grep-find
|
|
(mapconcat
|
|
#'shell-quote-argument
|
|
(append (list "rg" "-L" "--search-zip" "--no-heading" "--color=never" query)
|
|
(cl-remove-if-not #'file-directory-p (elisp-refs--loaded-paths)))
|
|
" ")))
|