19 lines
767 B
EmacsLisp
19 lines
767 B
EmacsLisp
;;; defuns-spaceline.el
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;;;###autoload
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(defmacro define-env-command! (mode command)
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"Define a COMMAND for MODE that will set `narf--env-command' when that mode is
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activated, which should return the version number of the current environment. It is used
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by `narf|spaceline-env-update' to display a version number in the modeline. For instance:
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(define-env-command! ruby-mode \"ruby --version | cut -d' ' -f2\")
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This will display the ruby version in the modeline in ruby-mode buffers. It is cached the
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first time."
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(add-hook! (focus-in find-file) 'narf|spaceline-env-update)
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`(add-hook ',(intern (format "%s-hook" (symbol-name mode)))
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(lambda () (setq narf--env-command ,command))))
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(provide 'defuns-spaceline)
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;;; defuns-spaceline.el ends here
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