Eshell: Add support for auto-suggestions
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@ -189,6 +189,7 @@ See `eshell' for the numeric prefix ARG."
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(switch-to-buffer (car last))
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(eshell (or arg t))))))
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;;; Completion
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(when (require 'bash-completion nil t)
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(defun eshell-bash-completion ()
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(while (pcomplete-here
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@ -199,6 +200,13 @@ See `eshell' for the numeric prefix ARG."
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(when (and (executable-find "fish")
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(require 'fish-completion nil t))
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(fish-completion-eshell-global-toggle))
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(fish-completion-eshell-toggle-globally))
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;;; Auto-suggestion
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(when (require 'package-eshell-autosuggest)
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(add-hook 'eshell-mode-hook 'company-mode)
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(when (require 'helm-config nil t)
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(define-key company-active-map (kbd "M-p") 'helm-eshell-history))
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(add-hook 'eshell-mode-hook 'eshell-setup-autosuggest))
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(provide 'init-eshell)
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@ -0,0 +1,42 @@
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(require 'company)
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(defun company-eshell-autosuggest-candidates (prefix)
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(let* ((history
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(cl-remove-duplicates
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(mapcar (lambda (str)
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(string-trim (substring-no-properties str)))
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(ring-elements eshell-history-ring))
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:from-end t
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:test #'string=))
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(most-similar (cl-find-if
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(lambda (str)
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(string-prefix-p prefix str))
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history)))
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(when most-similar
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`(,most-similar))))
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(defun company-eshell-autosuggest--prefix ()
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(let ((prefix
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(string-trim-left
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(buffer-substring-no-properties
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(save-excursion
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(eshell-bol))
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(save-excursion (end-of-line) (point))))))
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(if (not (string-empty-p prefix))
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prefix
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'stop)))
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(defun company-eshell-autosuggest (command &optional arg &rest ignored)
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(interactive (list 'interactive))
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(cl-case command
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(interactive (company-begin-backend 'company-eshell))
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(prefix (and (eq major-mode 'eshell-mode)
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(company-eshell-autosuggest--prefix)))
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(candidates (company-eshell-autosuggest-candidates arg))))
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(defun eshell-setup-autosuggest ()
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(setq-local company-idle-delay 0.5)
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(setq-local company-backends '(company-eshell-autosuggest))
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(setq-local company-frontends '(company-preview-frontend)))
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(provide 'package-eshell-autosuggest)
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