;;; no-littering.el --- Help keeping ~/.config/emacs clean -*- lexical-binding:t -*-
;; Copyright (C) 2016-2023 Jonas Bernoulli
;; Author: Jonas Bernoulli <jonas@bernoul.li>
;; Homepage: https://github.com/emacscollective/no-littering
;; Keywords: convenience
;; Package-Requires: ((emacs "25.1") (compat "29.1.4.1"))
;; SPDX-License-Identifier: GPL-3.0-or-later
;; This file is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published
;; by the Free Software Foundation, either version 3 of the License,
;; or (at your option) any later version.
;;
;; This file is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with this file. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; Help keeping ~/.config/emacs clean.
;; The default paths used to store configuration files and persistent
;; data are not consistent across Emacs packages. This isn't just a
;; problem with third-party packages but even with built-in packages.
;; Some packages put these files directly in `user-emacs-directory'
;; or $HOME or in a subdirectory of either of the two or elsewhere.
;; Furthermore sometimes file names are used that don't provide any
;; insight into what package might have created them.
;; This package sets out to fix this by changing the values of path
;; variables to put configuration files in `no-littering-etc-directory'
;; (defaulting to "etc/" under `user-emacs-directory', thus usually
;; "~/.config/emacs/etc/") and persistent data files in
;; `no-littering-var-directory' (defaulting to "var/" under
;; `user-emacs-directory', thus usually "~/.emacs.d/var/"), and
;; by using descriptive file names and subdirectories when appropriate.
;; This is similar to a color-theme; a "path-theme" if you will.
;; We still have a long way to go until most built-in and many third-
;; party path variables are properly "themed". Like a color-theme,
;; this package depends on user contributions to accomplish decent
;; coverage. Pull requests are highly welcome (but please follow the
;; conventions described below and in the pull request template).
;; `no-littering' cannot help with moving existing files to the new
;; location. You will have to move the files manually. See issue
;; #79 for more information.
;;;; Usage
;; Load the feature `no-littering' as early as possible in your init
;; file. Make sure you load it at least before you change any path
;; variables using some other method.
;;
;; (require 'no-littering)
;; If you would like to use base directories different from what
;; `no-littering' uses by default, then you have to set the respective
;; variables before loading the feature.
;;
;; (setq no-littering-etc-directory
;; (expand-file-name "config/" user-emacs-directory))
;; (setq no-littering-var-directory
;; (expand-file-name "data/" user-emacs-directory))
;; (require 'no-littering)
;; For additional optional settings see "README.md".
;;;; Conventions
;;;;; A) File names
;;
;; 1. File names are based on the name of the respective Emacs Lisp
;; variables and the name of the respective Emacs package.
;;
;; 2. The name of the respective Emacs package should serve as the
;; prefix of the file name, unless the file is in a subdirectory in
;; which case the name of the subdirectory serves as the prefix.
;;
;; 3. If the name of the package and the prefix of the variable do not
;; match, then we prefer the name of the package.
;;
;; 4. If the name of a path variable ends with `-file`, `-default-file`,
;; `-directory`, `-default-directory`, or something similar, then that
;; suffix is usually dropped from the file name.
;;
;; 5. If applicable, the appropriate extension is added to the file name
;; so that files are visited using the appropriate major-modes and
;; also to provide a hint about the kind of data stored in the file.
;; E.g. if a file contains an S-expression, then the suffix should be
;; `*.el`.
;;;;; B) File location and subdirectories
;;
;; 1. If a package has only one data file, then that is usually placed in
;; `no-littering-var-directory` itself. Likewise if a package has
;; only one config file, then that is placed in
;; `no-littering-etc-directory` itself.
;;
;; 2. If a package has multiple data (or config files), then those files
;; are placed in a subdirectory of `no-littering-var-directory` (or
;; `no-littering-etc-directory`).
;;
;; 3. If a subdirectory is used for a package's data (or config) file
;; variables, then the name of the directory should match the name of
;; the package in most cases. The subdirectory name may serve as the
;; package prefix of the file name.
;;
;; 4. If a package provides a "framework" for other packages to use,
;; then we may reuse its directories for other packages that make use
;; of that framework or otherwise "extend" the "main package".
;; E.g. we place all `helm` related files in `helm/`.
;;
;; 5. If a package only defines a single variable that specifies a data
;; (or config) directory, then the directory name should
;; nevertheless be just the package name. E.g. the path used for
;; `sx-cache-directory` from the `sx` package is `sx/cache/`, not
;; `sx-cache/`.
;;
;; 6. However if the name of the directory variable implies that the
;; package won't ever define any data (or config) files that won't be
;; placed in that directory, then we use a top-level directory. E.g.
;; when the name of the variable is `<package>-directory`, in which
;; case we would use just `<package>/` as the path.
;;;;; C) Ordering and alignment
;;
;; 1. The code that sets the values of themed variables is split into two
;; groups. The first group sets the value of variables that belong to
;; packages that are part of Emacs, and the second group is used for
;; variables that are defined by packages that are not part of Emacs.
;;
;; 2. Each of these lists is sorted alphabetically (usually by variable
;; name). Please keep it that way.
;;
;; 3. We attempt to align the value forms inside different `setq` forms.
;; If the symbol part for a particular variable is too long to allow
;; doing so, then don't worry about it and just break the alignment.
;; If it turns out that this happens very often, then we will adjust
;; the alignment eventually.
;;;;; D) Commit messages
;;
;; 1. Please theme each package using a separate commit and use commit
;; messages of the form "<package>: theme <variable".
;;
;; 2. If a package has several path variables, then you should theme them
;; all in one commit.
;;
;; 3. If the variable names do not fit nicely on the summary line, then
;; use a message such as:
;;
;; foo: theme variables
;;
;; Theme `foo-config-file', `foo-cache-directory',
;; and `foo-persistent-file'.
;; 4. When appropriate add statements like the following to the commit
;; message:
;;
;; - This file is used to store an s-expression.
;; - This file is used to store raw text.
;; - This is the only configuration/data file of the package.
;; - This package does/doesn't take care of creating the containing
;; directory if necessary. (If the package does not do it, then you
;; should also fix that and submit an upstream pull request.)
;;
;; 5. If you are uncertain, then be explicit about it by adding a comment
;; to the pull-request.
;;; Code:
(require 'cl-lib)
(require 'compat)
(defvar no-littering-etc-directory
(expand-file-name (convert-standard-filename "etc/") user-emacs-directory)
"The directory where packages place their configuration files.
This variable has to be set before `no-littering' is loaded.")
(defvar no-littering-var-directory
(expand-file-name (convert-standard-filename "var/") user-emacs-directory)
"The directory where packages place their persistent data files.
This variable has to be set before `no-littering' is loaded.")
;;;###autoload
(defun no-littering-expand-etc-file-name (file)
"Expand filename FILE relative to `no-littering-etc-directory'."
(expand-file-name (convert-standard-filename file)
no-littering-etc-directory))
;;;###autoload
(defun no-littering-expand-var-file-name (file)
"Expand filename FILE relative to `no-littering-var-directory'."
(expand-file-name (convert-standard-filename file)
no-littering-var-directory))
(cl-letf (((symbol-function 'etc)
(symbol-function #'no-littering-expand-etc-file-name))
((symbol-function 'var)
(symbol-function #'no-littering-expand-var-file-name)))
(make-directory no-littering-etc-directory t)
(make-directory no-littering-var-directory t)
(with-no-warnings ; many of these variables haven't been defined yet
;;; Built-in packages
(setq abbrev-file-name (etc "abbrev.el"))
(setq auto-insert-directory (etc "auto-insert/"))
(setq auto-save-list-file-prefix (var "auto-save/sessions/"))
(setq bookmark-default-file (var "bookmark-default.el"))
(setq calc-settings-file (etc "calc-settings.el"))
(setq desktop-dirname (var "desktop/"))
(setq desktop-path (list desktop-dirname))
(setq diary-file (var "diary"))
(setq ecomplete-database-file (var "ecomplete-database.el"))
(setq ede-project-placeholder-cache-file (var "ede-projects.el"))
(setq erc-dcc-get-default-directory (var "erc/dcc/"))
(setq erc-log-channels-directory (var "erc/log-channels/"))
(setq eshell-aliases-file (etc "eshell/aliases"))
(setq eshell-directory-name (var "eshell/"))
(setq eshell-login-script (etc "eshell/login"))
(setq eshell-rc-script (etc "eshell/rc"))
(setq eudc-options-file (etc "eudc-options.el"))
(setq eww-bookmarks-directory (var "eww/"))
(setq filesets-menu-cache-file (var "filesets-menu-cache.el"))
(setq gamegrid-user-score-file-directory (var "gamegrid-user-score/"))
(setq gnus-dribble-directory (var "gnus/dribble/"))
(setq gnus-init-file (etc "gnus/init.el"))
;; Gnus hardcodes newsrc.eld to be based on gnus-startup-file.
(setq gnus-startup-file (etc "gnus/newsrc"))
(setq ido-save-directory-list-file (var "ido-save-directory-list.el"))
(setq image-dired-db-file (var "image-dired/db.el"))
(setq image-dired-dir (var "image-dired/"))
(setq image-dired-gallery-dir (var "image-dired/gallery/"))
(setq image-dired-temp-image-file (var "image-dired/temp-image"))
(setq image-dired-temp-rotate-image-file (var "image-dired/temp-rotate-image"))
(setq kkc-init-file-name (var "kkc-init.el"))
(setq multisession-directory (var "multisession/"))
(setq newsticker-cache-filename (var "newsticker/cache.el"))
(setq newsticker-dir (var "newsticker/data/"))
(setq nsm-settings-file (var "nsm-settings.el"))
(setq org-clock-persist-file (var "org/clock-persist.el"))
(setq org-id-locations-file (var "org/id-locations.el"))
(setq org-persist-directory (var "org/persist/"))
(setq org-publish-timestamp-directory (var "org/timestamps/"))
(setq project-list-file (var "project-list.el"))
(setq quickurl-url-file (var "quickurl-url.el"))
(setq rcirc-log-directory (var "rcirc-log/"))
(setq recentf-save-file (var "recentf-save.el"))
(setq remember-data-directory (var "remember/data.d/"))
(setq remember-data-file (var "remember/data"))
(setq save-place-file (var "save-place.el"))
(setq savehist-file (var "savehist.el"))
(setq semanticdb-default-save-directory (var "semantic/"))
(setq shadow-info-file (var "shadow/info.el"))
(setq shadow-todo-file (var "shadow/todo.el"))
(setq shared-game-score-directory (var "shared-game-score/"))
(setq srecode-map-save-file (var "srecode-map.el"))
(setq timeclock-file (var "timeclock"))
(setq tramp-auto-save-directory (var "tramp/auto-save/"))
(setq tramp-persistency-file-name (var "tramp/persistency.el"))
(setq type-break-file-name (var "type-break.el"))
(setq url-cache-directory (var "url/cache/"))
(setq url-configuration-directory (var "url/"))
(setq url-cookie-file (var "url/cookies.el"))
(setq url-history-file (var "url/history.el"))
(eval-after-load 'desktop '(make-directory desktop-dirname t))
(eval-after-load 'erc '(make-directory erc-dcc-get-default-directory t))
(eval-after-load 'eshell '(make-directory eshell-directory-name t))
(eval-after-load 'eww '(make-directory eww-bookmarks-directory t))
(eval-after-load 'gnus `(make-directory ,(etc "gnus/") t))
(eval-after-load 'gnus '(make-directory gnus-dribble-directory t))
(eval-after-load 'newsticker `(make-directory ,(var "newsticker/") t))
(eval-after-load 'org `(make-directory ,(var "org/") t))
(eval-after-load 'shadowfile `(make-directory ,(var "shadow/") t))
;;; Third-party packages
(setq abm-file (var "autobookmarks.el"))
(setq ac-comphist-file (var "ac-comphist.el"))
(setq amx-save-file (var "amx-save.el"))
(setq anaconda-mode-installation-directory (var "anaconda-mode/"))
(setq annotate-file (var "annotations.el"))
(setq async-byte-compile-log-file (var "async-bytecomp.log"))
(setq auto-package-update-last-update-day-path (var "auto-package-update-last-update-day"))
(setq bbdb-file (var "bbdb/bbdb.el"))
(setq bbdb-vcard-directory (var "bbdb/vcard/"))
(setq bm-repository-file (var "bm-repository.el"))
(setq bmkp-bmenu-commands-file (var "bmkp/bmenu-commands.el"))
(setq bmkp-current-bookmark-file (var "bmkp/current-bookmark.el"))
(setq bmkp-last-bookmark-file (var "bmkp/last-bookmark.el"))
(setq bookiez-file (var "bookiez"))
(setq cider-repl-history-file (var "cider-repl-history.el"))
(setq clm/logging-dir (var "command-log-mode/logging/"))
(setq code-review-db-database-file (var "code-review/database.sqlite"))
(setq code-review-download-dir (var "code-review/downloads/"))
(setq code-review-log-file (var "code-review/log"))
(setq company-statistics-file (var "company/statistics.el"))
(setq company-tabnine-binaries-folder (var "company/tabnine-binaries"))
(setq conventional-changelog-tmp-dir (var "conventional-changelog/"))
(setq dap-breakpoints-file (var "dap/breakpoints.el"))
(setq dap-java-test-runner (var "lsp-java/eclipse.jdt.ls/test-runner/junit-platform-console-standalone.jar"))
(setq dap-utils-extension-path (var "dap/extensions/"))
(setq debbugs-gnu-persistency-file (var "debbugs.el"))
(setq detached-db-directory (var "detached/db/"))
(setq detached-session-directory (var "detached/sessions/"))
(setq devdocs-browser-cache-directory (var "devdocs/browser-cache/"))
(setq devdocs-data-dir (var "devdocs/data/"))
(setq dired-recent-directories-file (var "dired-recent-directories.el"))
(setq dirvish-cache-dir (var "dirvish/cache"))
(setq elbank-data-file (var "elbank-data.el"))
(setq elfeed-autotag-files (list (etc "elfeed/autotags.org")))
(setq elfeed-db-directory (var "elfeed/db/"))
(setq elfeed-enclosure-default-dir (var "elfeed/enclosures/"))
(setq elfeed-score-score-file (etc "elfeed/score/score.el"))
(setq elgrep-data-file (var "elgrep-data.el"))
(setq elmo-msgdb-directory (var "elmo/"))
(setq elmo-split-log-file (var "elmo/split-log"))
(setq elpher-bookmarks-file (var "elpher-bookmarks.el"))
(setq emms-directory (var "emms/"))
(setq emojify-emojis-dir (var "emojify/"))
(setq epkg-repository (var "epkgs/"))
(setq equake-persistent-display-file (var "equake-persistent-display"))
(setq fontaine-latest-state-file (var "fontaine-latest-state.eld"))
(setq forge-database-file (var "forge/database.sqlite"))
(setq forge-post-directory (var "forge/posts/"))
(setq geben-temporary-file-directory (var "geben/"))
(setq geiser-repl-history-filename (var "geiser/repl-history"))
(setq gnus-notes-file (var "gnus-notes/articles.el"))
(setq gnus-notes-top-dir (var "gnus-notes/"))
(setq grammalecte-settings-file (etc "grammalecte-settings.el"))
(setq hackernews-visited-links-file (var "hackernews/visited-links.el"))
(setq harpoon-cache-file (var "harpoon/"))
(setq helm-adaptive-history-file (var "helm/adaptive-history.el"))
(setq helm-backup-path (var "helm/backup/"))
(setq helm-github-stars-cache-file (var "helm/github-stars-cache.el"))
(setq helm-net-curl-log-file (var "helm/helm-curl.log"))
(setq historian-save-file (var "historian-save.el"))
(setq indium-workspace-file (var "indium/workspaces.el"))
(setq irfc-directory (var "irfc/"))
(setq irony-user-dir (var "irony/"))
(setq jabber-avatar-cache-directory (var "jabber/avatar-cache"))
(setq jabber-history-dir (var "jabber/history"))
(setq keyfreq-file (var "keyfreq.el"))
(setq keyfreq-file-lock (var "keyfreq.lock"))
(setq libbcel-oauth-store-filename (var "libbcel-oauth-store.el.gpg"))
(setq litable-list-file (var "litable-list.el"))
(setq logview-cache-filename (var "logview-cache"))
(setq logview-views-file (etc "logview-views"))
(setq lookup-init-directory (etc "lookup/"))
(setq lsp-clojure-workspace-dir (var "lsp-clojure/workspace/"))
(setq lsp-eslint-library-choices-file (var "lsp/eslint-library-choices.el"))
(setq lsp-java-server-install-dir (var "lsp-java/eclipse.jdt.ls/server/"))
(setq lsp-java-workspace-dir (var "lsp-java/workspace/"))
(setq lsp-ltex-user-rules-path (var "lsp-ltex/"))
(setq lsp-python-ms-dir (var "lsp-python-ms/"))
(setq lsp-server-install-dir (var "lsp/server/"))
(setq lsp-session-file (var "lsp/session.el"))
(setq magithub-cache-file (var "magithub/cache.el"))
(setq magithub-dir (var "magithub/"))
(setq mc/list-file (var "mc-list.el"))
(setq meghanada-server-install-dir (var "meghanada/"))
(setq multi-compile-history-file (var "multi-compile-history.el"))
(setq nix-buffer-directory-name (var "nix-buffer/"))
(setq nomad-tramp-script-directory (var "nomad-tramp/"))
;; The value of this variable MUST NOT end with ".el" but the
;; actual file name MUST end with ".el". Use "git blame" for
;; more information.
(setq notmuch-init-file (etc "notmuch-init"))
(setq nov-save-place-file (var "nov-save-place.el"))
(setq omnisharp-cache-directory (var "omnisharp/cache"))
(setq org-caldav-backup-file (var "org/caldav/backup.org"))
(setq org-caldav-save-directory (var "org/caldav/save"))
(setq org-gcal-dir (var "org/gcal/"))
(setq org-journal-cache-file (var "org/journal-cache.el"))
(setq org-recent-headings-save-file (var "org/recent-headings.el"))
(setq org-registry-file (var "org/registry.el"))
(setq org-roam-db-location (var "org/org-roam.db"))
(setq package-quickstart-file (var "package-quickstart.el"))
(setq pandoc-data-dir (etc "pandoc-mode/"))
(setq pcache-directory (var "pcache/"))
(setq pdf-view-restore-filename (var "pdf-view-restore.el"))
(setq persist--directory-location (var "persist/"))
(setq persistent-scratch-save-file (var "persistent-scratch.el"))
(setq persp-save-dir (var "persp-mode/"))
(setq prescient-save-file (var "prescient-save.el"))
(setq projectile-cache-file (var "projectile/cache.el"))
(setq projectile-known-projects-file (var "projectile/known-projects.el"))
(setq psession-elisp-objects-default-directory (var "psession/"))
(setq purpose-default-layout-file (etc "window-purpose/default-layout.el"))
(setq purpose-layout-dirs (list (etc "window-purpose/layouts/")))
(setq pyim-dcache-directory (var "pyim/dcache/"))
(setq quack-dir (var "quack/"))
(setq racket-repl-history-directory (var "racket-mode/repl-history/"))
(setq request-storage-directory (var "request/storage/"))
(setq rfc-mode-directory (var "rfc-mode/"))
(setq rime-user-data-dir (var "rime/"))
(setq rmh-elfeed-org-files (list (etc "elfeed/rmh-elfeed.org")))
(setq runner-init-file (var "runner-init.el"))
(setq save-kill-file-name (var "save-kill.el"))
(setq save-visited-files-location (var "save-visited-files-location"))
(setq session-save-file (var "session.el"))
(setq sly-mrepl-history-file-name (var "sly/mrepl-history"))
(setq smex-save-file (var "smex-save.el"))
(setq speed-type-gb-dir (var "speed-type/"))
(setq spell-fu-directory (var "spell-fu/"))
(setq svg-lib-icons-dir (var "svg-lib/icons/"))
(setq sx-cache-directory (var "sx/cache/"))
(setq tldr-directory-path (var "tldr/"))
(setq transient-history-file (var "transient/history.el"))
(setq transient-levels-file (etc "transient/levels.el"))
(setq transient-values-file (etc "transient/values.el"))
(setq treemacs-last-error-persist-file (var "treemacs/persist-last-error.org"))
(setq treemacs-persist-file (var "treemacs/persist.org"))
(setq undo-fu-session-directory (var "undo-fu-session/"))
(setq undohist-directory (var "undohist/"))
(setq uptimes-database (var "uptimes.el"))
(setq user-emacs-ensime-directory (var "ensime/"))
(setq vimish-fold-dir (var "vimish-fold/"))
(setq wl-address-file (etc "wanderlust/address"))
(setq wl-alias-file (etc "wanderlust/alias"))
(setq wl-folders-file (etc "wanderlust/folders"))
(setq wl-init-file (etc "wanderlust/init.el"))
(setq wl-temporary-file-directory (var "wanderlust-tmp"))
(setq wl-x-face-file (etc "wanderlust/x-face"))
(setq x86-lookup-cache-directory (var "x86-lookup/cache/"))
(setq xkcd-cache-dir (var "xkcd/"))
(setq yas-snippet-dirs (list (etc "yasnippet/snippets/")))
(eval-after-load 'bbdb `(make-directory ,(var "bbdb/") t))
(eval-after-load 'bookmark+-1 `(make-directory ,(var "bmkp/") t))
(eval-after-load 'command-log-mode '(make-directory clm/logging-dir t))
(eval-after-load 'company `(make-directory ,(var "company/") t))
(eval-after-load 'elfeed `(make-directory ,(var "elfeed/") t))
(eval-after-load 'emojify '(make-directory emojify-emojis-dir t))
(eval-after-load 'geiser `(make-directory ,(var "geiser/") t))
(eval-after-load 'helm `(make-directory ,(var "helm/") t))
(eval-after-load 'jabber '(make-directory jabber-avatar-cache-directory t))
(eval-after-load 'jabber '(make-directory jabber-history-dir t))
(eval-after-load 'lookup '(make-directory lookup-init-directory t))
(eval-after-load 'lsp-mode `(make-directory ,(var "lsp/") t))
(eval-after-load 'org-caldav '(make-directory org-caldav-save-directory t))
(eval-after-load 'projectile `(make-directory ,(var "projectile/") t))
(eval-after-load 'sly `(make-directory ,(var "sly/") t))
(eval-after-load 'sx '(make-directory sx-cache-directory t))
(eval-after-load 'wl `(make-directory ,(etc "wanderlust") t))
(eval-after-load 'xkcd '(make-directory xkcd-cache-dir t))
(eval-after-load 'yasnippet '(make-directory (car yas-snippet-dirs) t))
))
;;; Advices
(defun no-littering-emacs-session-filename (session-id)
"Construct a filename to save the session in, based on SESSION-ID.
Unconditionally return a filename in `no-littering-var-directory'."
(let ((dir (no-littering-expand-var-file-name "emacs-session/")))
(make-directory dir t)
(expand-file-name session-id dir)))
(advice-add 'emacs-session-filename :override
#'no-littering-emacs-session-filename)
;;; Backups
(defvar undo-tree-history-directory-alist)
(defun no-littering-theme-backups ()
"Theme locations where backups of various sorts are created.
The purpose of this package is to store data files of various
sorts in a handful of central locations, instead of spreading
them all over the place. When doing that for temporary files,
which contain backups of some sort, that increases the odds that
sensitive data is written to disk in clear text and/or that such
clear text files persist longer, if they would be created anyway.
Because of that, simply loading `no-littering' does not theme
certain, potentially unsafe variables. Instead, this function is
provided, so that you can decide whether to take the risk or not.
Calling this function sets these variables:
- `auto-save-file-name-transforms' (built-in)
- `backup-directory-alist' (built-in)
- `undo-tree-history-directory-alist' (from `undo-tree')
The default values of these variables cause additional files to
be created in the same directories as the files that are being
visited. Calling this function changes the values of these
variables, so that this is only done for visited files located in
certain directories. For all other visited files, the additional
files are created in files inside `no-littering-var-directory'.
Additional files are created in the same directory as the visited
file, for files located in:
- \"/tmp/\"
- \"/dev/shm\"
- `temporary-file-directory'
With these settings it is still possible that sensitive data is
written to additional files, but you are more likely to spot it,
and because these directories usually use a `tmpfs' file-system,
the leaked secrets should not persist after a reboot.
If you do *not* call this function, then these additional files
are always created in the same directory as the visited files,
regardless of the location of the visited files. In other words,
even when using the default values, there is a significant risk
of leaking sensitive data, and if you want to reduce that, then
you must turn of these features completely."
(setq auto-save-file-name-transforms
`(("\\`/[^/]*:\\([^/]*/\\)*\\([^/]*\\)\\'"
,(concat (file-name-as-directory temporary-file-directory) "\\2") t)
("\\`/tmp\\([^/]*/\\)*\\(.*\\)\\'" "\\2")
("\\`/dev/shm\\([^/]*/\\)*\\(.*\\)\\'" "\\2")
(".*" ,(no-littering-expand-var-file-name "auto-save/") t)))
(setq backup-directory-alist
`((,(concat "\\`" (file-name-as-directory temporary-file-directory)))
("\\`/tmp/" . nil)
("\\`/dev/shm/" . nil)
("." . ,(no-littering-expand-var-file-name "backup/"))))
(setq undo-tree-history-directory-alist
`((,(concat "\\`" (file-name-as-directory temporary-file-directory)))
("\\`/tmp/" . nil)
("\\`/dev/shm/" . nil)
("." . ,(no-littering-expand-var-file-name "undo-tree-hist/"))))
)
;;; _
(provide 'no-littering)
;; Local Variables:
;; indent-tabs-mode: nil
;; End:
;;; no-littering.el ends here