46 lines
1.8 KiB
Scheme
46 lines
1.8 KiB
Scheme
;;; linkwave -- Store/retrieve/manage bookmarks
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;; Copyright (C) 2012 Tom Willemsen <tom at ryuslash dot org>
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;; This program is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;; Path-related functions.
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;;; Code:
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(declare (unit paths))
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(define (stored-file xdg-env file)
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;; Get FILE either from `XDG-ENV/linkwave/' or from
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;; `$HOME/.linkwave/'. Prefer any existing file over any other, but
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;; prefer files using XDG-ENV over `$HOME'.
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(let ((xdg (get-environment-variable xdg-env))
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(stored-file (string-append (get-environment-variable "HOME") "/.linkwave/" file)))
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(unless (or (file-exists? stored-file) (not xdg))
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(set! stored-file (string-append xdg "/linkwave/" file)))
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stored-file))
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(: config-file (string -> string))
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(define (config-file file)
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;; Use `stored-file' to get configuration file FILE. Configuration
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;; files are stored under `$XDG_CONFIG_HOME' if the XDG standard is
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;; used.
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(stored-file "XDG_CONFIG_HOME" file))
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(: data-file (string -> string))
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(define (data-file file)
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;; Use `stored-file' to get data file FILE. Data files are stored
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;; under `$XDG_DATA_HOME' if the XDG standard is used.
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(stored-file "XDG_DATA_HOME" file))
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