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dwt1--dotfiles/.emacs.d/core/core-projects.el
2019-12-16 20:21:19 -06:00

282 lines
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EmacsLisp

;;; core-projects.el -*- lexical-binding: t; -*-
(defvar doom-projectile-cache-limit 25000
"If any project cache surpasses this many files it is purged when quitting
Emacs.")
(defvar doom-projectile-cache-blacklist '("~" "/tmp" "/")
"Directories that should never be cached.")
(defvar doom-projectile-cache-purge-non-projects nil
"If non-nil, non-projects are purged from the cache on `kill-emacs-hook'.")
(defvar doom-projectile-fd-binary
(or (cl-find-if #'executable-find '("fdfind" "fd"))
"fd")
"name of `fd-find' executable binary")
(defvar doom-projectile-cache-timer-file (concat doom-cache-dir "projectile.timers")
"Where to save project file cache timers.")
;;
;;; Packages
(use-package! projectile
:after-call after-find-file dired-before-readin-hook minibuffer-setup-hook
:commands (projectile-project-root
projectile-project-name
projectile-project-p
projectile-locate-dominating-file)
:init
(setq projectile-cache-file (concat doom-cache-dir "projectile.cache")
projectile-enable-caching doom-interactive-mode
projectile-files-cache-expire 86400 ; expire after a day
projectile-globally-ignored-files '(".DS_Store" "Icon
" "TAGS")
projectile-globally-ignored-file-suffixes '(".elc" ".pyc" ".o")
projectile-kill-buffers-filter 'kill-only-files
projectile-known-projects-file (concat doom-cache-dir "projectile.projects")
projectile-ignored-projects '("~/" "/tmp"))
(global-set-key [remap evil-jump-to-tag] #'projectile-find-tag)
(global-set-key [remap find-tag] #'projectile-find-tag)
:config
(projectile-mode +1)
;; In the interest of performance, we reduce the number of project root marker
;; files/directories projectile searches for when resolving the project root.
(setq projectile-project-root-files-bottom-up
(append '(".project" ; doom project marker
".git") ; Git VCS root dir
(when (executable-find "hg")
'(".hg")) ; Mercurial VCS root dir
(when (executable-find "fossil")
'(".fslckout" ; Fossil VCS root dir
"_FOSSIL_")) ; Fossil VCS root DB on Windows
(when (executable-find "bzr")
'(".bzr")) ; Bazaar VCS root dir
(when (executable-find "darcs")
'("_darcs"))) ; Darcs VCS root dir
;; This will be filled by other modules. We build this list manually so
;; projectile doesn't perform so many file checks every time it resolves
;; a project's root -- particularly when a file has no project.
projectile-project-root-files '("TAGS")
projectile-project-root-files-top-down-recurring '(".svn" "Makefile"))
(push (abbreviate-file-name doom-local-dir) projectile-globally-ignored-directories)
;; Disable commands that won't work, as is, and that Doom already provides a
;; better alternative for.
(put 'projectile-ag 'disabled "Use +{ivy,helm}/project-search instead")
(put 'projectile-ripgrep 'disabled "Use +{ivy,helm}/project-search instead")
(put 'projectile-grep 'disabled "Use +{ivy,helm}/project-search instead")
;; Treat current directory in dired as a "file in a project" and track it
(add-hook 'dired-before-readin-hook #'projectile-track-known-projects-find-file-hook)
;; Accidentally indexing big directories like $HOME or / will massively bloat
;; projectile's cache (into the hundreds of MBs). This purges those entries
;; when exiting Emacs to prevent slowdowns/freezing when cache files are
;; loaded or written to.
(add-hook! 'kill-emacs-hook
(defun doom-cleanup-project-cache-h ()
"Purge projectile cache entries that:
a) have too many files (see `doom-projectile-cache-limit'),
b) represent blacklisted directories that are too big, change too often or are
private. (see `doom-projectile-cache-blacklist'),
c) are not valid projectile projects."
(when (and (bound-and-true-p projectile-projects-cache)
doom-interactive-mode)
(cl-loop with blacklist = (mapcar #'file-truename doom-projectile-cache-blacklist)
for proot in (hash-table-keys projectile-projects-cache)
if (or (not (stringp proot))
(>= (length (gethash proot projectile-projects-cache))
doom-projectile-cache-limit)
(member (substring proot 0 -1) blacklist)
(and doom-projectile-cache-purge-non-projects
(not (doom-project-p proot))))
do (doom-log "Removed %S from projectile cache" proot)
and do (remhash proot projectile-projects-cache)
and do (remhash proot projectile-projects-cache-time)
and do (remhash proot projectile-project-type-cache))
(projectile-serialize-cache))))
;; It breaks projectile's project root resolution if HOME is a project (e.g.
;; it's a git repo). In that case, we disable bottom-up root searching to
;; prevent issues. This makes project resolution a little slower and less
;; accurate in some cases.
(let ((default-directory "~"))
(when (cl-find-if #'projectile-file-exists-p
projectile-project-root-files-bottom-up)
(doom-log "HOME appears to be a project. Disabling bottom-up root search.")
(setq projectile-project-root-files
(append projectile-project-root-files-bottom-up
projectile-project-root-files)
projectile-project-root-files-bottom-up nil)))
(cond
;; If fd exists, use it for git and generic projects. fd is a rust program
;; that is significantly faster than git ls-files or find, and it respects
;; .gitignore. This is recommended in the projectile docs.
((executable-find doom-projectile-fd-binary)
(setq projectile-generic-command
(format "%s . --color=never --type f -0 -H -E .git"
doom-projectile-fd-binary)
projectile-git-command projectile-generic-command
projectile-git-submodule-command nil
;; ensure Windows users get fd's benefits
projectile-indexing-method 'alien))
;; Otherwise, resort to ripgrep, which is also faster than find
((executable-find "rg")
(setq projectile-generic-command
(concat "rg -0 --files --color=never --hidden"
(cl-loop for dir in projectile-globally-ignored-directories
concat (format " --glob '!%s'" dir)))
projectile-git-command projectile-generic-command
projectile-git-submodule-command nil
;; ensure Windows users get rg's benefits
projectile-indexing-method 'alien))
;; Fix breakage on windows in git projects with submodules, since Windows
;; doesn't have tr
((not (executable-find "tr"))
(setq projectile-git-submodule-command nil)))
(defadvice! doom--projectile-cache-timers-a ()
"Persist `projectile-projects-cache-time' across sessions, so that
`projectile-files-cache-expire' checks won't reset when restarting Emacs."
:before #'projectile-serialize-cache
(projectile-serialize projectile-projects-cache-time doom-projectile-cache-timer-file))
;; Restore it
(when (file-readable-p doom-projectile-cache-timer-file)
(setq projectile-projects-cache-time
(projectile-unserialize doom-projectile-cache-timer-file)))
(defadvice! doom--projectile-default-generic-command-a (orig-fn &rest args)
"If projectile can't tell what kind of project you're in, it issues an error
when using many of projectile's command, e.g. `projectile-compile-command',
`projectile-run-project', `projectile-test-project', and
`projectile-configure-project', for instance.
This suppresses the error so these commands will still run, but prompt you for
the command instead."
:around #'projectile-default-generic-command
(ignore-errors (apply orig-fn args)))
;; Projectile root-searching functions can cause an infinite loop on TRAMP
;; connections, so disable them.
;; TODO Is this still necessary?
(defadvice! doom--projectile-locate-dominating-file-a (orig-fn file name)
"Don't traverse the file system if on a remote connection."
:around #'projectile-locate-dominating-file
(when (and (stringp file)
(not (file-remote-p file nil t)))
(funcall orig-fn file name))))
;;
;;; Project-based minor modes
(defvar doom-project-hook nil
"Hook run when a project is enabled. The name of the project's mode and its
state are passed in.")
(cl-defmacro def-project-mode! (name &key
modes
files
when
match
add-hooks
on-load
on-enter
on-exit)
"Define a project minor-mode named NAME (a symbol) and declare where and how
it is activated. Project modes allow you to configure 'sub-modes' for
major-modes that are specific to a folder, project structure, framework or
whatever arbitrary context you define. These project modes can have their own
settings, keymaps, hooks, snippets, etc.
This creates NAME-hook and NAME-map as well.
A project can be enabled through .dir-locals.el too, by setting `doom-project'.
PLIST may contain any of these properties, which are all checked to see if NAME
should be activated. If they are *all* true, NAME is activated.
:modes MODES -- if buffers are derived from MODES (one or a list of symbols).
:files FILES -- if project contains FILES; takes a string or a form comprised
of nested (and ...) and/or (or ...) forms. Each path is relative to the
project root, however, if prefixed with a '.' or '..', it is relative to the
current buffer.
:match REGEXP -- if file name matches REGEXP
:when PREDICATE -- if PREDICATE returns true (can be a form or the symbol of a
function)
:add-hooks HOOKS -- HOOKS is a list of hooks to add this mode's hook.
:on-load FORM -- FORM to run the first time this project mode is enabled.
:on-enter FORM -- FORM is run each time the mode is activated.
:on-exit FORM -- FORM is run each time the mode is disabled.
Relevant: `doom-project-hook'."
(declare (indent 1))
(let ((init-var (intern (format "%s-init" name))))
(macroexp-progn
(append
(when on-load
`((defvar ,init-var nil)))
`((define-minor-mode ,name
"A project minor mode generated by `def-project-mode!'."
:init-value nil
:lighter ""
:keymap (make-sparse-keymap)
(if (not ,name)
,on-exit
(run-hook-with-args 'doom-project-hook ',name ,name)
,(when on-load
`(unless ,init-var
,on-load
(setq ,init-var t)))
,on-enter))
(dolist (hook ,add-hooks)
(add-hook ',(intern (format "%s-hook" name)) hook)))
(cond ((or files modes when)
(cl-check-type files (or null list string))
(let ((fn
`(lambda ()
(and (not (bound-and-true-p ,name))
(and buffer-file-name (not (file-remote-p buffer-file-name nil t)))
,(or (null match)
`(if buffer-file-name (string-match-p ,match buffer-file-name)))
,(or (null files)
;; Wrap this in `eval' to prevent eager expansion
;; of `project-file-exists-p!' from pulling in
;; autoloaded files prematurely.
`(eval
'(project-file-exists-p!
,(if (stringp (car files)) (cons 'and files) files))))
,(or when t)
(,name 1)))))
(if modes
`((dolist (mode ,modes)
(let ((hook-name
(intern (format "doom--enable-%s%s-h" ',name
(if (eq mode t) "" (format "-in-%s" mode))))))
(fset hook-name #',fn)
(if (eq mode t)
(add-to-list 'auto-minor-mode-magic-alist (cons hook-name #',name))
(add-hook (intern (format "%s-hook" mode)) hook-name)))))
`((add-hook 'change-major-mode-after-body-hook #',fn)))))
(match
`((add-to-list 'auto-minor-mode-alist (cons ,match #',name)))))))))
(provide 'core-projects)
;;; core-projects.el ends here