doomemacs/modules/completion/helm/autoload/helm.el
Henrik Lissner 6e6dfc2215
Implement helm project search functionality #644
Adds +helm/project-search, as well as +helm/ag and +helm/ag-from-cwd,
and variants for rg, pt and grep/git-grep, to mirror the functionality
available to :completion ivy.

Also updates the evil ex commands and keybinds
2018-06-02 20:37:02 +02:00

172 lines
7.1 KiB
EmacsLisp

;;; completion/helm/autoload/helm.el -*- lexical-binding: t; -*-
;;;###autoload
(defun +helm/tasks (&optional _arg)
(interactive "P")
;; TODO Implement `+helm/tasks'
(error "Not implemented yet"))
;;
;; Project search
;;
(cl-defun +helm--file-search (engine &key query in all-files (recursive t))
(require 'helm-ag)
(helm-ag--init-state)
(let* ((project-root (doom-project-root))
(directory (or in project-root))
(default-directory directory)
(helm-ag--default-directory directory)
(engine (or engine
(and (executable-find "rg") 'rg)
(and (executable-find "ag") 'ag)
(and (executable-find "pt") 'pt)
(and (or (executable-find "grep")
(executable-find "git"))
'grep)
(error "No search engine specified (is ag, rg, pt or git installed?)")))
(query (or query
(when (use-region-p)
(let ((beg (or (bound-and-true-p evil-visual-beginning) (region-beginning)))
(end (or (bound-and-true-p evil-visual-end) (region-end))))
(when (> (abs (- end beg)) 1)
(rxt-quote-pcre (buffer-substring-no-properties beg end)))))
""))
(prompt (format "%s%%s %s"
(symbol-name engine)
(cond ((equal directory default-directory)
"./")
((equal directory project-root)
(projectile-project-name))
(t
(file-relative-name directory project-root)))))
(command
(pcase engine
('grep
(let* ((helm-ff-default-directory directory)
(helm-grep-in-recurse recursive)
(helm-grep-ignored-files
(unless all-files
(cl-union (projectile-ignored-files-rel) grep-find-ignored-files)))
(helm-grep-ignored-directories
(unless all-files
(cl-union (mapcar 'directory-file-name (projectile-ignored-directories-rel))
grep-find-ignored-directories)))
(helm-grep-default-command
(if (and nil (eq (projectile-project-vcs) 'git))
(format "git --no-pager grep --no-color -n%%c -e %%p %s -- %%f"
(if recursive "" "--max-depth 1 "))
(format "grep -si -a%s %%e -n%%cH -e %%p %%f %s"
(if recursive " -R" "")
(if recursive "." "./*"))))
(helm-grep-default-recurse-command helm-grep-default-command))
(message "-- %s (%s)" helm-grep-default-command query)
(setq helm-source-grep
(helm-build-async-source (capitalize (helm-grep-command t))
:header-name (lambda (_name) "Helm Projectile Grep (C-c ? Help)")
:candidates-process #'helm-grep-collect-candidates
:filter-one-by-one #'helm-grep-filter-one-by-one
:candidate-number-limit 9999
:nohighlight t
:keymap helm-grep-map
:history 'helm-grep-history
:action (apply #'helm-make-actions helm-projectile-grep-or-ack-actions)
:persistent-action 'helm-grep-persistent-action
:persistent-help "Jump to line (`C-u' Record in mark ring)"
:requires-pattern 2))
(helm :sources 'helm-source-grep
:input query
:prompt prompt
:buffer "*helm grep*"
:default-directory directory
:keymap helm-grep-map
:history 'helm-grep-history
:truncate-lines helm-grep-truncate-lines))
(cl-return t))
(`ag
(list "ag -zS --nocolor --nogroup"
(when all-files "-a")
(unless recursive "--depth 1")))
(`rg
(list "rg -zS --no-heading --line-number --color never"
(when all-files "-uu")
(unless recursive "--maxdepth 1")))
(`pt
(list "pt -zS --nocolor --nogroup -e"
(when all-files "-a")
(unless recursive "--depth 1")))))
(helm-ag-base-command (string-join command " ")))
(setq helm-ag--last-query query)
(helm-attrset 'search-this-file nil helm-ag-source)
(helm-attrset 'name (helm-ag--helm-header helm-ag--default-directory) helm-ag-source)
(helm :sources '(helm-ag-source)
:input query
:prompt prompt
:buffer "*helm-ag*"
:keymap helm-ag-map
:history 'helm-ag--helm-history)))
;;;###autoload
(defun +helm/project-search (arg)
"Performs a project search using the first available search backend from a
list of: ripgrep, ag, pt, git-grep and grep. If ARG (universal argument),
preform search from current directory."
(interactive "P")
(call-interactively
(cond ((executable-find "rg") (if arg #'+helm/rg-from-cwd #'+helm/rg))
((executable-find "ag") (if arg #'+helm/ag-from-cwd #'+helm/ag))
((executable-find "pt") (if arg #'+helm/pt-from-cwd #'+helm/pt))
(arg #'+helm/grep-from-cwd)
(#'+helm/grep))))
;; Relative to project root
;;;###autoload
(defun +helm/rg (all-files-p &optional query directory)
"TODO"
(interactive "P")
(+helm--file-search 'rg :query query :in directory :all-files all-files-p))
;;;###autoload
(defun +helm/ag (all-files-p &optional query directory)
"TODO"
(interactive "P")
(+helm--file-search 'ag :query query :in directory :all-files all-files-p))
;;;###autoload
(defun +helm/pt (all-files-p &optional query directory)
"TODO"
(interactive "P")
(+helm--file-search 'pt :query query :in directory :all-files all-files-p))
;;;###autoload
(defun +helm/grep (all-files-p &optional query directory)
"TODO"
(interactive "P")
(+helm--file-search 'grep :query query :in directory :all-files all-files-p))
;; Relative to current directory
;;;###autoload
(defun +helm/rg-from-cwd (recurse-p &optional query)
"TODO"
(interactive "P")
(+helm--file-search 'rg :query query :in default-directory :recursive recurse-p))
;;;###autoload
(defun +helm/ag-from-cwd (recurse-p &optional query)
"TODO"
(interactive "P")
(+helm--file-search 'ag :query query :in default-directory :recursive recurse-p))
;;;###autoload
(defun +helm/pt-from-cwd (recurse-p &optional query)
"TODO"
(interactive "P")
(+helm--file-search 'pt :query query :in default-directory :recursive recurse-p))
;;;###autoload
(defun +helm/grep-from-cwd (recurse-p &optional query)
"TODO"
(interactive "P")
(+helm--file-search 'grep :query query :in default-directory :recursive recurse-p))