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spacemacs/layers/+completion/helm/funcs.el
2018-05-21 01:18:37 -04:00

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;;; funcs.el --- Helm Layer functions File for Spacemacs
;;
;; Copyright (c) 2012-2018 Sylvain Benner & Contributors
;;
;; Author: Sylvain Benner <sylvain.benner@gmail.com>
;; URL: https://github.com/syl20bnr/spacemacs
;;
;; This file is not part of GNU Emacs.
;;
;;; License: GPLv3
(defvar spacemacs--helm-popwin-mode nil
"Temp variable to store `popwin-mode''s value.")
(defun spacemacs//helm-cleanup ()
"Cleanup some helm related states when quitting."
;; deactivate any running transient map (transient-state)
(setq overriding-terminal-local-map nil))
(defun spacemacs//helm-prepare-display ()
"Prepare necessary settings to make Helm display properly."
(setq spacemacs-display-buffer-alist display-buffer-alist)
;; the only buffer to display is Helm, nothing else we must set this
;; otherwise Helm cannot reuse its own windows for copyinng/deleting
;; etc... because of existing popwin buffers in the alist
(setq display-buffer-alist nil)
(setq spacemacs--helm-popwin-mode popwin-mode)
(when popwin-mode
(popwin-mode -1)))
(defun spacemacs//helm-restore-display ()
;; we must enable popwin-mode first then restore `display-buffer-alist'
;; Otherwise, popwin keeps adding up its own buffers to
;; `display-buffer-alist' and could slow down Emacs as the list grows
(when spacemacs--helm-popwin-mode
(popwin-mode))
(setq display-buffer-alist spacemacs-display-buffer-alist))
;; REPLs integration
(defun helm-available-repls ()
"Show all the repls available."
(interactive)
(let ((helm-available-repls
`((name . "HELM available REPLs")
(candidates . ,(mapcar #'car spacemacs-repl-list))
(action . (lambda (candidate)
(let ((repl (cdr (assoc candidate spacemacs-repl-list))))
(require (car repl))
(call-interactively (cdr repl))))))))
(helm :sources '(helm-available-repls)
:buffer "*helm repls*")))
;; Search tools integration
(defun spacemacs//helm-do-ag-region-or-symbol (func &optional dir)
"Search with `ag' with a default input."
(require 'helm-ag)
(cl-letf* (((symbol-value 'helm-ag-insert-at-point) 'symbol)
;; make thing-at-point choosing the active region first
((symbol-function 'this-fn) (symbol-function 'thing-at-point))
((symbol-function 'thing-at-point)
(lambda (thing)
(let ((res (if (region-active-p)
(buffer-substring-no-properties
(region-beginning) (region-end))
(this-fn thing))))
(when res (rxt-quote-pcre res))))))
(funcall func dir)))
(defun spacemacs//helm-do-search-find-tool (base tools default-inputp)
"Create a cond form given a TOOLS string list and evaluate it."
(eval
`(cond
,@(mapcar
(lambda (x)
`((executable-find ,x)
',(let ((func
(intern
(format (if default-inputp
"spacemacs/%s-%s-region-or-symbol"
"spacemacs/%s-%s")
base x))))
(if (fboundp func)
func
(intern (format "%s-%s" base x))))))
tools)
(t 'helm-do-grep))))
;; Search in current file ----------------------------------------------
(defun spacemacs/helm-file-do-ag (&optional _)
"Wrapper to execute `helm-ag-this-file.'"
(interactive)
(helm-do-ag-this-file))
(defun spacemacs/helm-file-do-ag-region-or-symbol ()
"Search in current file with `ag' using a default input."
(interactive)
(spacemacs//helm-do-ag-region-or-symbol 'spacemacs/helm-file-do-ag))
(defun spacemacs/helm-file-smart-do-search (&optional default-inputp)
"Search in current file using `dotspacemacs-search-tools'.
Search for a search tool in the order provided by `dotspacemacs-search-tools'
If DEFAULT-INPUTP is non nil then the current region or symbol at point
are used as default input."
(interactive)
(call-interactively
(spacemacs//helm-do-search-find-tool "helm-file-do"
dotspacemacs-search-tools
default-inputp)))
(defun spacemacs/helm-file-smart-do-search-region-or-symbol ()
"Search in current file using `dotspacemacs-search-tools' with
default input.
Search for a search tool in the order provided by `dotspacemacs-search-tools'."
(interactive)
(spacemacs/helm-file-smart-do-search t))
;; Search in files -----------------------------------------------------
(defun spacemacs/helm-files-do-ag (&optional dir)
"Search in files with `ag' using a default input."
(interactive)
(helm-do-ag dir))
(defun spacemacs/helm-files-do-ag-region-or-symbol ()
"Search in files with `ag' using a default input."
(interactive)
(spacemacs//helm-do-ag-region-or-symbol 'spacemacs/helm-files-do-ag))
(defun spacemacs/helm-files-do-ack (&optional dir)
"Search in files with `ack'."
(interactive)
(let ((helm-ag-base-command "ack --nocolor --nogroup"))
(helm-do-ag dir)))
(defun spacemacs/helm-files-do-ack-region-or-symbol ()
"Search in files with `ack' using a default input."
(interactive)
(spacemacs//helm-do-ag-region-or-symbol 'spacemacs/helm-files-do-ack))
(defun spacemacs/helm-files-do-pt (&optional dir)
"Search in files with `pt'."
(interactive)
(let ((helm-ag-base-command "pt -e --nocolor --nogroup"))
(helm-do-ag dir)))
(defun spacemacs/helm-files-do-pt-region-or-symbol ()
"Search in files with `pt' using a default input."
(interactive)
(spacemacs//helm-do-ag-region-or-symbol 'spacemacs/helm-files-do-pt))
(defun spacemacs/helm-files-do-rg (&optional dir)
"Search in files with `rg'."
(interactive)
;; --line-number forces line numbers (disabled by default on windows)
;; no --vimgrep because it adds column numbers that wgrep can't handle
;; see https://github.com/syl20bnr/spacemacs/pull/8065
(let* ((root-helm-ag-base-command "rg --smart-case --no-heading --color never --line-number")
(helm-ag-base-command (if spacemacs-helm-rg-max-column-number
(concat root-helm-ag-base-command " --max-columns " (number-to-string spacemacs-helm-rg-max-column-number))
root-helm-ag-base-command)))
(helm-do-ag dir)))
(defun spacemacs/helm-files-do-rg-region-or-symbol ()
"Search in files with `rg' using a default input."
(interactive)
(spacemacs//helm-do-ag-region-or-symbol 'spacemacs/helm-files-do-rg))
(defun spacemacs/helm-files-smart-do-search (&optional default-inputp)
"Search in files using `dotspacemacs-search-tools'.
Search for a search tool in the order provided by `dotspacemacs-search-tools'
If DEFAULT-INPUTP is non nil then the current region or symbol at point
are used as default input."
(interactive)
(call-interactively
(spacemacs//helm-do-search-find-tool "helm-files-do"
dotspacemacs-search-tools
default-inputp)))
(defun spacemacs/helm-files-smart-do-search-region-or-symbol ()
"Search in files using `dotspacemacs-search-tools' with default input.
Search for a search tool in the order provided by `dotspacemacs-search-tools'."
(interactive)
(spacemacs/helm-files-smart-do-search t))
;; Search in current dir -----------------------------------------------
(defun spacemacs/helm-dir-do-ag ()
"Search in current directory with `ag'."
(interactive)
(spacemacs/helm-files-do-ag default-directory))
(defun spacemacs/helm-dir-do-ag-region-or-symbol ()
"Search in current directory with `ag' with a default input."
(interactive)
(spacemacs//helm-do-ag-region-or-symbol 'spacemacs/helm-files-do-ag default-directory))
(defun spacemacs/helm-dir-do-ack ()
"Search in current directory with `ack'."
(interactive)
(spacemacs/helm-files-do-ack default-directory))
(defun spacemacs/helm-dir-do-ack-region-or-symbol ()
"Search in current directory with `ack' with a default input."
(interactive)
(spacemacs//helm-do-ag-region-or-symbol 'spacemacs/helm-files-do-ack default-directory))
(defun spacemacs/helm-dir-do-pt ()
"Search in current directory with `pt'."
(interactive)
(spacemacs/helm-files-do-pt default-directory))
(defun spacemacs/helm-dir-do-pt-region-or-symbol ()
"Search in current directory with `pt' with a default input."
(interactive)
(spacemacs//helm-do-ag-region-or-symbol 'spacemacs/helm-files-do-pt default-directory))
(defun spacemacs/helm-dir-do-rg ()
"Search in current directory with `rg'."
(interactive)
(spacemacs/helm-files-do-rg default-directory))
(defun spacemacs/helm-dir-do-rg-region-or-symbol ()
"Search in current directory with `rg' with a default input."
(interactive)
(spacemacs//helm-do-ag-region-or-symbol 'spacemacs/helm-files-do-rg default-directory))
(defun spacemacs/helm-dir-smart-do-search (&optional default-inputp)
"Search in current directory using `dotspacemacs-search-tools'.
Search for a search tool in the order provided by `dotspacemacs-search-tools'
If DEFAULT-INPUTP is non nil then the current region or symbol at point
are used as default input."
(interactive)
(call-interactively
(spacemacs//helm-do-search-find-tool "helm-dir-do"
dotspacemacs-search-tools
default-inputp)))
(defun spacemacs/helm-dir-smart-do-search-region-or-symbol ()
"Search in current directory using `dotspacemacs-search-tools'.
with default input.
Search for a search tool in the order provided by `dotspacemacs-search-tools'."
(interactive)
(spacemacs/helm-dir-smart-do-search t))
;; Search in buffers ---------------------------------------------------
(defun spacemacs/helm-buffers-do-ag (&optional _)
"Wrapper to execute `helm-ag-buffers.'"
(interactive)
(helm-do-ag-buffers))
(defun spacemacs/helm-buffers-do-ag-region-or-symbol ()
"Search in opened buffers with `ag' with a default input."
(interactive)
(spacemacs//helm-do-ag-region-or-symbol 'spacemacs/helm-buffers-do-ag))
(defun spacemacs/helm-buffers-do-ack (&optional _)
"Search in opened buffers with `ack'."
(interactive)
(let ((helm-ag-base-command "ack --nocolor --nogroup"))
(helm-do-ag-buffers)))
(defun spacemacs/helm-buffers-do-ack-region-or-symbol ()
"Search in opened buffers with `ack' with a default input."
(interactive)
(spacemacs//helm-do-ag-region-or-symbol 'spacemacs/helm-buffers-do-ack))
(defun spacemacs/helm-buffers-do-pt (&optional _)
"Search in opened buffers with `pt'."
(interactive)
(let ((helm-ag-base-command "pt -e --nocolor --nogroup"))
(helm-do-ag-buffers)))
(defun spacemacs/helm-buffers-do-pt-region-or-symbol ()
"Search in opened buffers with `pt' using a default input."
(interactive)
(spacemacs//helm-do-ag-region-or-symbol 'spacemacs/helm-buffers-do-pt))
(defun spacemacs/helm-buffers-do-rg (&optional _)
"Search in opened buffers with `rg'."
(interactive)
;; --line-number forces line numbers (disabled by default on windows)
;; no --vimgrep because it adds column numbers that wgrep can't handle
;; see https://github.com/syl20bnr/spacemacs/pull/8065
(let ((helm-ag-base-command "rg --smart-case --no-heading --color never --line-number --max-columns 150"))
(helm-do-ag-buffers)))
(defun spacemacs/helm-buffers-do-rg-region-or-symbol ()
"Search in opened buffers with `rg' using a default input."
(interactive)
(spacemacs//helm-do-ag-region-or-symbol 'spacemacs/helm-buffers-do-rg))
(defun spacemacs/helm-buffers-smart-do-search (&optional default-inputp)
"Search in opened buffers using `dotspacemacs-search-tools'.
Search for a search tool in the order provided by `dotspacemacs-search-tools'
If DEFAULT-INPUTP is non nil then the current region or symbol at point
are used as default input."
(interactive)
(call-interactively
(spacemacs//helm-do-search-find-tool "helm-buffers-do"
dotspacemacs-search-tools
default-inputp)))
(defun spacemacs/helm-buffers-smart-do-search-region-or-symbol ()
"Search in opened buffers using `dotspacemacs-search-tools' with
default input.
Search for a search tool in the order provided by `dotspacemacs-search-tools'."
(interactive)
(spacemacs/helm-buffers-smart-do-search t))
;; Search in project ---------------------------------------------------
(defun spacemacs/helm-project-smart-do-search-in-dir (dir)
(interactive)
(let ((default-directory dir))
(spacemacs/helm-project-smart-do-search)))
(defun spacemacs/helm-projectile-grep ()
"Replace `helm-projectile-grep' to actually use `ag', `pt' etc.."
(interactive)
(helm-exit-and-execute-action
'spacemacs/helm-project-smart-do-search-in-dir))
(defun spacemacs/helm-project-do-ag ()
"Search in current project with `ag'."
(interactive)
(let ((dir (projectile-project-root)))
(if dir
(helm-do-ag dir)
(message "error: Not in a project."))))
(defun spacemacs/helm-project-do-ag-region-or-symbol ()
"Search in current project with `ag' using a default input."
(interactive)
(let ((dir (projectile-project-root)))
(if dir
(spacemacs//helm-do-ag-region-or-symbol 'helm-do-ag dir)
(message "error: Not in a project."))))
(defun spacemacs/helm-project-do-ack ()
"Search in current project with `ack'."
(interactive)
(let ((dir (projectile-project-root)))
(if dir
(spacemacs/helm-files-do-ack dir)
(message "error: Not in a project."))))
(defun spacemacs/helm-project-do-ack-region-or-symbol ()
"Search in current project with `ack' using a default input."
(interactive)
(let ((dir (projectile-project-root)))
(if dir
(spacemacs//helm-do-ag-region-or-symbol
'spacemacs/helm-files-do-ack dir)
(message "error: Not in a project."))))
(defun spacemacs/helm-project-do-pt ()
"Search in current project with `pt'."
(interactive)
(let ((dir (projectile-project-root)))
(if dir
(spacemacs/helm-files-do-pt dir)
(message "error: Not in a project."))))
(defun spacemacs/helm-project-do-pt-region-or-symbol ()
"Search in current project with `pt' using a default input."
(interactive)
(let ((dir (projectile-project-root)))
(if dir
(spacemacs//helm-do-ag-region-or-symbol
'spacemacs/helm-files-do-pt dir)
(message "error: Not in a project."))))
(defun spacemacs/helm-project-do-rg ()
"Search in current project with `rg'."
(interactive)
(let ((dir (projectile-project-root)))
(if dir
(spacemacs/helm-files-do-rg dir)
(message "error: Not in a project."))))
(defun spacemacs/helm-project-do-rg-region-or-symbol ()
"Search in current project with `rg' using a default input."
(interactive)
(let ((dir (projectile-project-root)))
(if dir
(spacemacs//helm-do-ag-region-or-symbol
'spacemacs/helm-files-do-rg dir)
(message "error: Not in a project."))))
(defun spacemacs/helm-project-smart-do-search (&optional default-inputp)
"Search in current project using `dotspacemacs-search-tools'.
Search for a search tool in the order provided by `dotspacemacs-search-tools'
If DEFAULT-INPUTP is non nil then the current region or symbol at point
are used as default input."
(interactive)
(let ((projectile-require-project-root nil))
(call-interactively
(spacemacs//helm-do-search-find-tool "helm-project-do"
dotspacemacs-search-tools
default-inputp))))
(defun spacemacs/helm-project-smart-do-search-region-or-symbol ()
"Search in current project using `dotspacemacs-search-tools' with
default input.
Search for a search tool in the order provided by `dotspacemacs-search-tools'."
(interactive)
(spacemacs/helm-project-smart-do-search t))
;; grep
(defun spacemacs//helm-do-grep-region-or-symbol
(&optional targs use-region-or-symbol-p)
"Version of `helm-do-grep' with a default input."
(interactive)
(require 'helm)
(cl-letf*
(((symbol-function 'this-fn) (symbol-function 'helm-do-grep-1))
((symbol-function 'helm-do-grep-1)
(lambda (targets &optional recurse zgrep exts
default-input region-or-symbol-p)
(let* ((new-input (when region-or-symbol-p
(if (region-active-p)
(buffer-substring-no-properties
(region-beginning) (region-end))
(thing-at-point 'symbol t))))
(quoted-input (when new-input
(rxt-quote-pcre new-input))))
(this-fn targets recurse zgrep exts
default-input quoted-input))))
(preselection (or (dired-get-filename nil t)
(buffer-file-name (current-buffer))))
(targets (if targs
targs
(helm-read-file-name
"Search in file(s): "
:marked-candidates t
:preselect (if helm-ff-transformer-show-only-basename
(helm-basename preselection)
preselection)))))
(helm-do-grep-1 targets nil nil nil nil use-region-or-symbol-p)))
(defun spacemacs/helm-file-do-grep ()
"Search in current file with `grep' using a default input."
(interactive)
(spacemacs//helm-do-grep-region-or-symbol
(list (buffer-file-name (current-buffer))) nil))
(defun spacemacs/helm-file-do-grep-region-or-symbol ()
"Search in current file with `grep' using a default input."
(interactive)
(spacemacs//helm-do-grep-region-or-symbol
(list (buffer-file-name (current-buffer))) t))
(defun spacemacs/helm-files-do-grep ()
"Search in files with `grep'."
(interactive)
(spacemacs//helm-do-grep-region-or-symbol nil nil))
(defun spacemacs/helm-files-do-grep-region-or-symbol ()
"Search in files with `grep' using a default input."
(interactive)
(spacemacs//helm-do-grep-region-or-symbol nil t))
(defun spacemacs/helm-buffers-do-grep ()
"Search in opened buffers with `grep'."
(interactive)
(let ((buffers (cl-loop for buffer in (buffer-list)
when (buffer-file-name buffer)
collect (buffer-file-name buffer))))
(spacemacs//helm-do-grep-region-or-symbol buffers nil)))
(defun spacemacs/helm-buffers-do-grep-region-or-symbol ()
"Search in opened buffers with `grep' with a default input."
(interactive)
(let ((buffers (cl-loop for buffer in (buffer-list)
when (buffer-file-name buffer)
collect (buffer-file-name buffer))))
(spacemacs//helm-do-grep-region-or-symbol buffers t)))
(defun spacemacs/resume-last-search-buffer ()
"open last helm-ag or hgrep buffer."
(interactive)
(cond ((get-buffer "*helm ag results*")
(switch-to-buffer-other-window "*helm ag results*"))
((get-buffer "*helm-ag*")
(helm-resume "*helm-ag*"))
((get-buffer "*hgrep*")
(switch-to-buffer-other-window "*hgrep*"))
(t
(message "No previous search buffer found"))))
(defun spacemacs/helm-find-files (arg)
"Custom spacemacs implementation for calling helm-find-files-1.
Removes the automatic guessing of the initial value based on thing at point. "
(interactive "P")
(let* ((hist (and arg helm-ff-history (helm-find-files-history)))
(default-input hist)
(input (cond ((and (eq major-mode 'dired-mode) default-input)
(file-name-directory default-input))
((and (not (string= default-input ""))
default-input))
(t (expand-file-name (helm-current-directory))))))
(set-text-properties 0 (length input) nil input)
(helm-find-files-1 input)))
;; Key bindings
(defmacro spacemacs||set-helm-key (keys func)
"Define a key bindings for FUNC using KEYS.
Ensure that helm is required before calling FUNC."
(let ((func-name (intern (format "spacemacs/%s" (symbol-name func)))))
`(progn
(defun ,func-name ()
,(format "Wrapper to ensure that `helm' is loaded before calling %s."
(symbol-name func))
(interactive)
(require 'helm)
(call-interactively ',func))
(spacemacs/set-leader-keys ,keys ',func-name))))
;; Find files tweaks
(defun spacemacs//helm-find-files-edit (candidate)
"Opens a dired buffer and immediately switches to editable mode."
(dired (file-name-directory candidate))
(dired-goto-file candidate)
(dired-toggle-read-only))
(defun spacemacs/helm-find-files-edit ()
"Exits helm, opens a dired buffer and immediately switches to editable mode."
(interactive)
(helm-exit-and-execute-action 'spacemacs//helm-find-files-edit))
(defun spacemacs/helm-jump-in-buffer ()
"Jump in buffer using `imenu' facilities and helm."
(interactive)
(call-interactively
(cond
((eq major-mode 'org-mode) 'helm-org-in-buffer-headings)
(t 'helm-semantic-or-imenu))))
(defun spacemacs//helm-open-buffers-in-windows (buffers)
"This function allows a different default action, on marking multiple
candidate buffers/files for helm. By default, helm either opens all
files/buffers in the same window, or creates splits. This function instead
opens the buffers (or files) across different already-open windows. The first
selected buffer is opened in the current window, the next is opened in the
window with higher number, etc. This will make a loop around, so with 4
windows, and window 2 active, opening 4 buffers will open them in windows
2 3 4 1. If more buffers are opened than windows available, the remainder are
not set to any window (but in the case of files, they are still opened
to buffers)."
(let ((num-buffers (length buffers))
(num-windows (length (winum--window-list)))
(cur-win (winum-get-number))
(num-buffers-placed 0))
(cl-loop for buffer in buffers do
(when (>= num-buffers-placed num-windows) cl-return)
(set-window-buffer (winum-get-window-by-number cur-win) buffer)
(setq cur-win (+ 1 (mod cur-win num-windows)))
(incf num-buffers-placed))))
(defun spacemacs/helm-find-buffers-windows ()
(interactive)
(helm-exit-and-execute-action
(lambda (candidate)
(spacemacs//helm-open-buffers-in-windows (helm-marked-candidates)))))
(defun spacemacs/helm-find-files-windows ()
(interactive)
(helm-exit-and-execute-action
(lambda (candidate)
(let* ((files (helm-marked-candidates))
(buffers (mapcar 'find-file-noselect files)))
(spacemacs//helm-open-buffers-in-windows buffers)))))
;; Generalized next-error interface
(defun spacemacs//gne-init-helm-ag (&rest args)
(with-current-buffer "*helm ag results*"
(setq spacemacs--gne-min-line 5
spacemacs--gne-max-line (save-excursion
(goto-char (point-max))
(previous-line)
(line-number-at-pos))
spacemacs--gne-line-func
(lambda (c)
(helm-ag--find-file-action
c 'find-file helm-ag--search-this-file-p))
next-error-function 'spacemacs/gne-next)))
(defun spacemacs//gne-init-helm-grep (&rest args)
(with-current-buffer "*hgrep*"
(setq spacemacs--gne-min-line 5
spacemacs--gne-max-line
(save-excursion
(goto-char (point-max))
(previous-line)
(line-number-at-pos))
spacemacs--gne-line-func 'helm-grep-action
next-error-function 'spacemacs/gne-next)))
;; theme
(defun spacemacs/helm-themes ()
"Remove limit on number of candidates on `helm-themes'"
(interactive)
(let (helm-candidate-number-limit)
(helm-themes)))