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66 lines
2.6 KiB
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66 lines
2.6 KiB
Markdown
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[#]: collector: (lujun9972)
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[#]: translator: (lujun9972)
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[#]: reviewer: ( )
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[#]: publisher: ( )
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[#]: url: ( )
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[#]: subject: (Get desktop notifications from Emacs shell commands ·)
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[#]: via: (https://blog.hoetzel.info/post/eshell-notifications/)
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[#]: author: (Jürgen Hötzel https://blog.hoetzel.info)
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Get desktop notifications from Emacs shell commands ·
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======
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When interacting with the operating systems I always use [Eshell][1] because it integrates seamlessly with Emacs, supports (remote) [TRAMP][2] file names and also works nice on Windows.
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After starting shell commands (like long running build jobs) I often lose track the task when switching buffers.
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Thanks to Emacs [hooks][3] mechanism you can customize Emacs to call a elisp function when an external command finishes.
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I use [John Wiegleys][4] excellent [alert][5] package to send desktop notifications:
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```
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(require 'alert)
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(defun eshell-command-alert (process status)
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"Send `alert' with severity based on STATUS when PROCESS finished."
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(let* ((cmd (process-command process))
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(buffer (process-buffer process))
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(msg (format "%s: %s" (mapconcat 'identity cmd " ") status)))
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(if (string-prefix-p "finished" status)
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(alert msg :buffer buffer :severity 'normal)
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(alert msg :buffer buffer :severity 'urgent))))
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(add-hook 'eshell-kill-hook #'eshell-command-alert)
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```
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[alert][5] rules can be setup programmatically. In my case I only want to get notified if the corresponding buffer is not visible:
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```
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(alert-add-rule :status '(buried) ;only send alert when buffer not visible
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:mode 'eshell-mode
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:style 'notifications)
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```
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This even works on [TRAMP][2] buffers. Below is a screenshot showing a Gnome desktop notification of a failed `make` command.
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![../../img/eshell.png][6]
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--------------------------------------------------------------------------------
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via: https://blog.hoetzel.info/post/eshell-notifications/
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作者：[Jürgen Hötzel][a]
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选题：[lujun9972][b]
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译者：[lujun9972](https://github.com/lujun9972)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://blog.hoetzel.info
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[b]: https://github.com/lujun9972
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[1]: https://www.gnu.org/software/emacs/manual/html_mono/eshell.html (Eshell)
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[2]: https://www.gnu.org/software/tramp/ (TRAMP)
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[3]: https://www.gnu.org/software/emacs/manual/html_node/emacs/Hooks.html (hooks)
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[4]: https://github.com/jwiegley (John Wiegleys)
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[5]: https://github.com/jwiegley/alert (alert)
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[6]: https://blog.hoetzel.info/img/eshell.png (../../img/eshell.png)
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