2019-07-07 13:32:00 +00:00
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;; -*- lexical-binding: t; -*-
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2018-01-04 10:16:35 +00:00
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(defun nix--profile-paths ()
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2019-07-07 13:32:00 +00:00
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"Return a list of all paths in NIX_PROFILES.
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The list is ordered from more-specific (the user profile) to the
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2018-01-04 10:16:35 +00:00
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least specific (the system profile)"
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(reverse (split-string (or (getenv "NIX_PROFILES") ""))))
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;;; Extend `load-path' to search for elisp files in subdirectories of
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2018-01-04 10:48:25 +00:00
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;;; all folders in `NIX_PROFILES'. Also search for one level of
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;;; subdirectories in these directories to handle multi-file libraries
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;;; like `mu4e'.'
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(require 'seq)
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(let* ((subdirectory-sites (lambda (site-lisp)
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(when (file-exists-p site-lisp)
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(seq-filter (lambda (f) (file-directory-p (file-truename f)))
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;; Returns all files in `site-lisp', excluding `.' and `..'
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(directory-files site-lisp 'full "^\\([^.]\\|\\.[^.]\\|\\.\\..\\)")))))
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(paths (apply #'append
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(mapcar (lambda (profile-dir)
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(let ((site-lisp (concat profile-dir "/share/emacs/site-lisp/")))
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(cons site-lisp (funcall subdirectory-sites site-lisp))))
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(nix--profile-paths)))))
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(setq load-path (append paths load-path)))
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2015-03-07 11:03:26 +00:00
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;;; Make `woman' find the man pages
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2019-07-07 13:32:00 +00:00
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(defvar woman-manpath)
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2015-03-07 11:03:26 +00:00
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(eval-after-load 'woman
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'(setq woman-manpath
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2018-01-04 10:16:35 +00:00
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(append (mapcar (lambda (x) (concat x "/share/man/"))
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(nix--profile-paths))
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2015-03-07 11:03:26 +00:00
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woman-manpath)))
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2016-09-27 19:57:52 +00:00
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;;; Make tramp work for remote NixOS machines
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2019-07-07 13:32:00 +00:00
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(defvar tramp-remote-path)
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2018-12-17 18:34:39 +00:00
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(eval-after-load 'tramp-sh
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2018-01-04 10:16:35 +00:00
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;; TODO: We should also add the other `NIX_PROFILES' to this path.
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;; However, these are user-specific, so we would need to discover
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;; them dynamically after connecting via `tramp'
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2015-03-07 11:03:26 +00:00
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'(add-to-list 'tramp-remote-path "/run/current-system/sw/bin"))
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2016-09-27 19:57:52 +00:00
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;;; C source directory
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;;;
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;;; Computes the location of the C source directory from the path of
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;;; the current file:
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;;; from: /nix/store/<hash>-emacs-<version>/share/emacs/site-lisp/site-start.el
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;;; to: /nix/store/<hash>-emacs-<version>/share/emacs/<version>/src/
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2019-07-07 13:32:00 +00:00
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(defvar find-function-C-source-directory)
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2016-09-27 19:57:52 +00:00
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(let ((emacs
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2018-01-04 10:16:35 +00:00
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(file-name-directory ; .../emacs/
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(directory-file-name ; .../emacs/site-lisp
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(file-name-directory load-file-name)))) ; .../emacs/site-lisp/
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2016-09-27 19:57:52 +00:00
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(version
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(file-name-as-directory
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(concat
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(number-to-string emacs-major-version)
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"."
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(number-to-string emacs-minor-version))))
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(src (file-name-as-directory "src")))
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(setq find-function-C-source-directory (concat emacs version src)))
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