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emacs: Introduce REPL operation type.

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* emacs/guix-backend.el (guix-repl-operation-type): New variable.
  (guix-repl-output-filter): Run type hooks after performing an operation.
  (guix-eval-read): Add 'operation-type' argument.
This commit is contained in:
Alex Kost 2014-10-20 23:18:13 +04:00
parent d2b299a91f
commit ce2e4e3938
1 changed files with 23 additions and 3 deletions
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26
emacs/guix-backend.el
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@ -133,6 +133,12 @@ This REPL is used for receiving information only if
This internal variable is used to distinguish Guix operations
from operations performed in Guix REPL by a user.")
(defvar guix-repl-operation-type nil
"Type of the current operation performed by `guix-eval-in-repl'.
This internal variable is used to define what actions should be
executed after the current operation succeeds.
See `guix-eval-in-repl' for details.")
(defun guix-repl-operation-success-message ()
"Message telling about successful Guix operation."
(message "Guix operation has been performed."))
@ -232,7 +238,16 @@ This is a replacement for `geiser-repl--output-filter'."
(geiser-autodoc--disinhibit-autodoc)
(when guix-repl-operation-p
(setq guix-repl-operation-p nil)
(run-hooks 'guix-after-repl-operation-hook)))
(run-hooks 'guix-after-repl-operation-hook)
;; Run hooks specific to the current operation type.
(when guix-repl-operation-type
(let ((type-hook (intern
(concat "guix-after-"
(symbol-name guix-repl-operation-type)
"-hook"))))
(setq guix-repl-operation-type nil)
(and (boundp type-hook)
(run-hooks type-hook))))))
((string-match geiser-guile--debugger-prompt-regexp str)
(setq guix-repl-operation-p nil)
(geiser-con--connection-set-debugging geiser-repl--connection
@ -317,12 +332,17 @@ Return elisp expression of the first result value of evaluation."
(replace-regexp-in-string
"#t" "t" (car (guix-eval str wrap))))))
(defun guix-eval-in-repl (str &optional operation-buffer)
(defun guix-eval-in-repl (str &optional operation-buffer operation-type)
"Switch to Guix REPL and evaluate STR with guile expression there.
If OPERATION-BUFFER is non-nil, it should be a buffer from which
the current operation was performed."
the current operation was performed.
If OPERATION-TYPE is non-nil, it should be a symbol. After
successful executing of the current operation,
`guix-after-OPERATION-TYPE-hook' is called."
(run-hooks 'guix-before-repl-operation-hook)
(setq guix-repl-operation-p t
guix-repl-operation-type operation-type
guix-operation-buffer operation-buffer)
(let ((repl (guix-get-repl-buffer)))
(with-current-buffer repl