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projectile.el
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projectile.el
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;;; projectile.el --- Manage and navigate projects in Emacs easily -*- lexical-binding: t -*-
;; Copyright © 2011-2018 Bozhidar Batsov <bozhidar@batsov.com>
;; Author: Bozhidar Batsov <bozhidar@batsov.com>
;; URL: https://github.com/bbatsov/projectile
;; Keywords: project, convenience
;; Version: 0.15.0-cvs
;; Package-Requires: ((emacs "24.3") (pkg-info "0.4"))
;; This file is NOT part of GNU Emacs.
;; This program 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, or (at your option)
;; any later version.
;;
;; This program 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 GNU Emacs; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;; Commentary:
;;
;; This library provides easy project management and navigation. The
;; concept of a project is pretty basic - just a folder containing
;; special file. Currently git, mercurial and bazaar repos are
;; considered projects by default. If you want to mark a folder
;; manually as a project just create an empty .projectile file in
;; it. See the README for more details.
;;
;;; Code:
(require 'cl-lib)
(require 'thingatpt)
(require 'ibuffer)
(require 'ibuf-ext)
(require 'compile)
(require 'grep)
(eval-when-compile
(defvar ag-ignore-list)
(defvar ggtags-completion-table)
(defvar tags-completion-table)
(defvar tags-loop-scan)
(defvar tags-loop-operate)
(defvar eshell-buffer-name)
(defvar explicit-shell-file-name))
(declare-function ggtags-ensure-project "ggtags")
(declare-function ggtags-update-tags "ggtags")
(declare-function pkg-info-version-info "pkg-info")
(declare-function tags-completion-table "etags")
(declare-function make-term "term")
(declare-function term-mode "term")
(declare-function term-char-mode "term")
(defvar grep-files-aliases)
(defvar grep-find-ignored-directories)
(defvar grep-find-ignored-files)
;;;; Compatibility
(eval-and-compile
;; Added in Emacs 24.3.
(unless (fboundp 'defvar-local)
(defmacro defvar-local (var val &optional docstring)
"Define VAR as a buffer-local variable with default value VAL.
Like `defvar' but additionally marks the variable as being automatically
buffer-local wherever it is set."
(declare (debug defvar) (doc-string 3))
`(progn
(defvar ,var ,val ,docstring)
(make-variable-buffer-local ',var))))
;; Added in Emacs 24.4
(unless (fboundp 'string-suffix-p)
(defun string-suffix-p (suffix string &optional ignore-case)
"Return non-nil if SUFFIX is a suffix of STRING.
If IGNORE-CASE is non-nil, the comparison is done without paying
attention to case differences."
(let ((start-pos (- (length string) (length suffix))))
(and (>= start-pos 0)
(eq t (compare-strings suffix nil nil
string start-pos nil ignore-case))))))
;; Improved (no more stack overflows) in Emacs 24.5
(eval-after-load 'etags
'(when (< emacs-major-version 25)
(defvar etags--table-line-limit 500)
(defun etags-tags-completion-table ()
(let ((table (make-vector 511 0))
(progress-reporter
(make-progress-reporter
(format "Making tags completion table for %s..." buffer-file-name)
(point-min) (point-max))))
(save-excursion
(goto-char (point-min))
(while (not (eobp))
(if (not (re-search-forward
"[\f\t\n\r()=,; ]?\177\\\(?:\\([^\n\001]+\\)\001\\)?"
(+ (point) etags--table-line-limit) t))
(forward-line 1)
(intern (prog1 (if (match-beginning 1)
(buffer-substring (match-beginning 1) (match-end 1))
(goto-char (match-beginning 0))
(skip-chars-backward "^\f\t\n\r()=,; ")
(prog1
(buffer-substring (point) (match-beginning 0))
(goto-char (match-end 0))))
(progress-reporter-update progress-reporter (point)))
table))))
table)))))
(defun projectile-trim-string (string)
"Remove whitespace at the beginning and end of STRING."
(replace-regexp-in-string
"[ \n\r]+\\'"
""
(replace-regexp-in-string
"\\`[ \n\r]+"
""
string)))
;;; Customization
(defgroup projectile nil
"Manage and navigate projects easily."
:group 'tools
:group 'convenience
:link '(url-link :tag "Github" "https://github.com/bbatsov/projectile")
:link '(url-link :tag "Online Manual" "https://projectile.readthedocs.io/")
:link '(emacs-commentary-link :tag "Commentary" "projectile"))
(defcustom projectile-indexing-method (if (eq system-type 'windows-nt) 'native 'alien)
"Specifies the indexing method used by Projectile.
There are two indexing methods - native and alien.
The native method is implemented in Emacs Lisp (therefore it is
native to Emacs). Its advantage is that it is portable and will
work everywhere that Emacs does. Its disadvantage is that it is a
bit slow (especially for large projects). Generally it's a good
idea to pair the native indexing method with caching.
The alien indexing method uses external tools (e.g. git, find,
etc) to speed up the indexing process. The disadvantage of this
method is that it's not well supported on Windows systems.
By default alien indexing is the default on all operating
systems, except Windows."
:group 'projectile
:type '(radio
(const :tag "Native" native)
(const :tag "Alien" alien)))
(defcustom projectile-enable-caching (eq projectile-indexing-method 'native)
"When t enables project files caching.
Project caching is automatically enabled by default if you're
using the native indexing method."
:group 'projectile
:type 'boolean)
(defcustom projectile-file-exists-local-cache-expire nil
"Number of seconds before file existence cache expires for a
file on a local file system.
A value of nil disables this cache."
:group 'projectile
:type '(choice (const :tag "Disabled" nil)
(integer :tag "Seconds")))
(defcustom projectile-file-exists-remote-cache-expire (* 5 60)
"Number of seconds before file existence cache expires for a
file on a remote file system such as tramp.
A value of nil disables this cache."
:group 'projectile
:type '(choice (const :tag "Disabled" nil)
(integer :tag "Seconds")))
(defcustom projectile-files-cache-expire nil
"Number of seconds before files list cache expires.
A value of nil means the cache never expires."
:group 'projectile
:type '(choice (const :tag "Disabled" nil)
(integer :tag "Seconds")))
(defcustom projectile-require-project-root t
"Require the presence of a project root to operate when true.
Otherwise consider the current directory the project root."
:group 'projectile
:type 'boolean)
(defcustom projectile-completion-system 'ido
"The completion system to be used by Projectile."
:group 'projectile
:type '(radio
(const :tag "Ido" ido)
(const :tag "Grizzl" grizzl)
(const :tag "Helm" helm)
(const :tag "Ivy" ivy)
(const :tag "Default" default)
(function :tag "Custom function")))
(defcustom projectile-keymap-prefix (kbd "C-c p")
"Projectile keymap prefix."
:group 'projectile
:type 'string)
(defcustom projectile-cache-file
(expand-file-name "projectile.cache" user-emacs-directory)
"The name of Projectile's cache file."
:group 'projectile
:type 'string)
(defcustom projectile-tags-file-name "TAGS"
"The tags filename Projectile's going to use."
:group 'projectile
:type 'string)
(defcustom projectile-tags-command "ctags -Re -f \"%s\" %s"
"The command Projectile's going to use to generate a TAGS file."
:group 'projectile
:type 'string)
(defcustom projectile-tags-backend 'auto
"The tag backend that Projectile should use.
If set to 'auto', `projectile-find-tag' will automatically choose
which backend to use. Preference order is ggtags -> xref
-> etags-select -> `find-tag'. Variable can also be set to specify which
backend to use. If selected backend is unavailable, fall back to
`find-tag'.
If this variable is set to 'auto' and ggtags is available, or if
set to 'ggtags', then ggtags will be used for
`projectile-regenerate-tags'. For all other settings
`projectile-tags-command' will be used."
:group 'projectile
:type '(radio
(const :tag "auto" auto)
(const :tag "xref" xref)
(const :tag "ggtags" ggtags)
(const :tag "etags" etags-select)
(const :tag "standard" find-tag))
:package-version '(projectile . "0.14.0"))
(defcustom projectile-sort-order 'default
"The sort order used for a project's files."
:group 'projectile
:type '(radio
(const :tag "default" default)
(const :tag "recentf" recentf)
(const :tag "recently active" recently-active)
(const :tag "access time" access-time)
(const :tag "modification time" modification-time)))
(defcustom projectile-verbose t
"Echo messages that are not errors."
:group 'projectile
:type 'boolean)
(defcustom projectile-buffers-filter-function nil
"A function used to filter the buffers in `projectile-project-buffers'.
The function should accept and return a list of Emacs buffers.
Two example filter functions are shipped by default -
`projectile-buffers-with-file' and
`projectile-buffers-with-file-or-process'."
:group 'projectile
:type 'function)
(defcustom projectile-project-name nil
"If this value is non-nil, it will be used as project name.
It has precedence over function `projectile-project-name-function'."
:group 'projectile
:type 'string
:package-version '(projectile . "0.14.0"))
(defcustom projectile-project-name-function 'projectile-default-project-name
"A function that receives the project-root and returns the project name.
If variable `projectile-project-name' is non-nil, this function will not be used."
:group 'projectile
:type 'function
:package-version '(projectile . "0.14.0"))
(defcustom projectile-project-root-files
'("rebar.config" ; Rebar project file
"project.clj" ; Leiningen project file
"build.boot" ; Boot-clj project file
"SConstruct" ; Scons project file
"pom.xml" ; Maven project file
"build.sbt" ; SBT project file
"gradlew" ; Gradle wrapper script
"build.gradle" ; Gradle project file
".ensime" ; Ensime configuration file
"Gemfile" ; Bundler file
"requirements.txt" ; Pip file
"setup.py" ; Setuptools file
"tox.ini" ; Tox file
"composer.json" ; Composer project file
"Cargo.toml" ; Cargo project file
"mix.exs" ; Elixir mix project file
"stack.yaml" ; Haskell's stack tool based project
"info.rkt" ; Racket package description file
"DESCRIPTION" ; R package description file
"TAGS" ; etags/ctags are usually in the root of project
"GTAGS" ; GNU Global tags
"configure.in" ; autoconf old style
"configure.ac" ; autoconf new style
"cscope.out" ; cscope
)
"A list of files considered to mark the root of a project.
The topmost match has precedence."
:group 'projectile
:type '(repeat string))
(defcustom projectile-project-root-files-bottom-up
'(".projectile" ; projectile project marker
".git" ; Git VCS root dir
".hg" ; Mercurial VCS root dir
".fslckout" ; Fossil VCS root dir
"_FOSSIL_" ; Fossil VCS root DB on Windows
".bzr" ; Bazaar VCS root dir
"_darcs" ; Darcs VCS root dir
)
"A list of files considered to mark the root of a project.
The bottommost (parentmost) match has precedence."
:group 'projectile
:type '(repeat string))
(defcustom projectile-project-root-files-top-down-recurring
'(".svn" ; Svn VCS root dir
"CVS" ; Csv VCS root dir
"Makefile")
"A list of files considered to mark the root of a project.
The search starts at the top and descends down till a directory
that contains a match file but its parent does not. Thus, it's a
bottommost match in the topmost sequence of directories
containing a root file."
:group 'projectile
:type '(repeat string))
(defcustom projectile-project-root-files-functions
'(projectile-root-local
projectile-root-bottom-up
projectile-root-top-down
projectile-root-top-down-recurring)
"A list of functions for finding project roots."
:group 'projectile
:type '(repeat function))
(defcustom projectile-globally-ignored-files
(list projectile-tags-file-name)
"A list of files globally ignored by projectile."
:group 'projectile
:type '(repeat string))
(defcustom projectile-globally-unignored-files nil
"A list of files globally unignored by projectile."
:group 'projectile
:type '(repeat string)
:package-version '(projectile . "0.14.0"))
(defcustom projectile-globally-ignored-file-suffixes
nil
"A list of file suffixes globally ignored by projectile."
:group 'projectile
:type '(repeat string))
(defcustom projectile-globally-ignored-directories
'(".idea"
".ensime_cache"
".eunit"
".git"
".hg"
".fslckout"
"_FOSSIL_"
".bzr"
"_darcs"
".tox"
".svn"
".stack-work")
"A list of directories globally ignored by projectile."
:safe (lambda (x) (not (remq t (mapcar #'stringp x))))
:group 'projectile
:type '(repeat string))
(defcustom projectile-globally-unignored-directories nil
"A list of directories globally unignored by projectile."
:group 'projectile
:type '(repeat string)
:package-version '(projectile . "0.14.0"))
(defcustom projectile-globally-ignored-modes
'("erc-mode"
"help-mode"
"completion-list-mode"
"Buffer-menu-mode"
"gnus-.*-mode"
"occur-mode")
"A list of regular expressions for major modes ignored by projectile.
If a buffer is using a given major mode, projectile will ignore
it for functions working with buffers."
:group 'projectile
:type '(repeat string))
(defcustom projectile-globally-ignored-buffers nil
"A list of buffer-names ignored by projectile.
If a buffer is in the list projectile will ignore
it for functions working with buffers."
:group 'projectile
:type '(repeat string)
:package-version '(projectile . "0.12.0"))
(defcustom projectile-find-file-hook nil
"Hooks run when a file is opened with `projectile-find-file'."
:group 'projectile
:type 'hook)
(defcustom projectile-find-dir-hook nil
"Hooks run when a directory is opened with `projectile-find-dir'."
:group 'projectile
:type 'hook)
(defcustom projectile-switch-project-action 'projectile-find-file
"Action invoked after switching projects with `projectile-switch-project'.
Any function that does not take arguments will do."
:group 'projectile
:type 'function)
(defcustom projectile-find-dir-includes-top-level nil
"If true, add top-level dir to options offered by `projectile-find-dir'."
:group 'projectile
:type 'boolean)
(defcustom projectile-use-git-grep nil
"If true, use `vc-git-grep' in git projects."
:group 'projectile
:type 'boolean)
(defcustom projectile-grep-finished-hook nil
"Hooks run when `projectile-grep' finishes."
:group 'projectile
:type 'hook
:package-version '(projectile . "0.14.0"))
(defcustom projectile-test-prefix-function 'projectile-test-prefix
"Function to find test files prefix based on PROJECT-TYPE."
:group 'projectile
:type 'function)
(defcustom projectile-test-suffix-function 'projectile-test-suffix
"Function to find test files suffix based on PROJECT-TYPE."
:group 'projectile
:type 'function)
;;; Idle Timer
(defvar projectile-idle-timer nil
"The timer object created when `projectile-enable-idle-timer' is non-nil.")
(defcustom projectile-idle-timer-seconds 30
"The idle period to use when `projectile-enable-idle-timer' is non-nil."
:group 'projectile
:type 'number)
(defcustom projectile-idle-timer-hook '(projectile-regenerate-tags)
"The hook run when `projectile-enable-idle-timer' is non-nil."
:group 'projectile
:type '(repeat symbol))
(defcustom projectile-enable-idle-timer nil
"Enables idle timer hook `projectile-idle-timer-functions'.
When `projectile-enable-idle-timer' is non-nil, the hook
`projectile-idle-timer-hook' is run each time Emacs has been idle
for `projectile-idle-timer-seconds' seconds and we're in a
project."
:group 'projectile
:set (lambda (symbol value)
(set symbol value)
(when projectile-idle-timer
(cancel-timer projectile-idle-timer))
(setq projectile-idle-timer nil)
(when projectile-enable-idle-timer
(setq projectile-idle-timer (run-with-idle-timer
projectile-idle-timer-seconds t
(lambda ()
(when (projectile-project-p)
(run-hooks 'projectile-idle-timer-hook)))))))
:type 'boolean)
;;; Serialization
(defun projectile-serialize (data filename)
"Serialize DATA to FILENAME.
The saved data can be restored with `projectile-unserialize'."
(when (file-writable-p filename)
(with-temp-file filename
(insert (let (print-length) (prin1-to-string data))))))
(defun projectile-unserialize (filename)
"Read data serialized by `projectile-serialize' from FILENAME."
(with-demoted-errors
"Error during file deserialization: %S"
(when (file-exists-p filename)
(with-temp-buffer
(insert-file-contents filename)
;; this will blow up if the contents of the file aren't
;; lisp data structures
(read (buffer-string))))))
(defvar projectile-projects-cache nil
"A hashmap used to cache project file names to speed up related operations.")
(defvar projectile-projects-cache-time nil
"A hashmap used to record when we populated `projectile-projects-cache'.")
(defvar projectile-project-root-cache (make-hash-table :test 'equal)
"Cached value of function `projectile-project-root`.")
(defvar projectile-project-type-cache (make-hash-table :test 'equal)
"A hashmap used to cache project type to speed up related operations.")
(defvar projectile-known-projects nil
"List of locations where we have previously seen projects.
The list of projects is ordered by the time they have been accessed.
See also `projectile-remove-known-project',
`projectile-cleanup-known-projects' and `projectile-clear-known-projects'.")
(defvar projectile-known-projects-on-file nil
"List of known projects reference point.
Contains a copy of `projectile-known-projects' when it was last
synchronized with `projectile-known-projects-file'.")
(defcustom projectile-known-projects-file
(expand-file-name "projectile-bookmarks.eld"
user-emacs-directory)
"Name and location of the Projectile's known projects file."
:group 'projectile
:type 'string)
(defcustom projectile-ignored-projects nil
"A list of projects not to be added to `projectile-known-projects'."
:group 'projectile
:type '(repeat :tag "Project list" directory)
:package-version '(projectile . "0.11.0"))
(defcustom projectile-ignored-project-function nil
"Function to decide if a project is added to `projectile-known-projects'.
Can be either nil, or a function that takes the truename of the
project root as argument and returns non-nil if the project is to
be ignored or nil otherwise.
This function is only called if the project is not listed in
`projectile-ignored-projects'.
A suitable candidate would be `file-remote-p' to ignore remote
projects."
:group 'projectile
:type '(choice
(const :tag "Nothing" nil)
(const :tag "Remote files" file-remote-p)
function)
:package-version '(projectile . "0.13.0"))
(defcustom projectile-track-known-projects-automatically t
"Controls whether Projectile will automatically register known projects.
When set to nil you'll have always add projects explicitly with
`projectile-add-known-project'."
:group 'projectile
:type 'boolean
:package-version '(projectile . "0.15.0"))
;;; Version information
;;;###autoload
(defun projectile-version (&optional show-version)
"Get the Projectile version as string.
If called interactively or if SHOW-VERSION is non-nil, show the
version in the echo area and the messages buffer.
The returned string includes both, the version from package.el
and the library version, if both a present and different.
If the version number could not be determined, signal an error,
if called interactively, or if SHOW-VERSION is non-nil, otherwise
just return nil."
(interactive (list t))
(if (require 'pkg-info nil t)
(let ((version (pkg-info-version-info 'projectile)))
(when show-version
(message "Projectile %s" version))
version)
(error "Cannot determine version without package pkg-info")))
;;; Caching
(defvar projectile-file-exists-cache
(make-hash-table :test 'equal)
"Cached `projectile-file-exists-p' results.")
(defvar projectile-file-exists-cache-timer nil
"Timer for scheduling`projectile-file-exists-cache-cleanup'.")
(defun projectile-file-exists-cache-cleanup ()
"Removed timed out cache entries and reschedules or remove the
timer if no more items are in the cache."
(let ((now (current-time)))
(maphash (lambda (key value)
(if (time-less-p (cdr value) now)
(remhash key projectile-file-exists-cache)))
projectile-file-exists-cache)
(setq projectile-file-exists-cache-timer
(if (> (hash-table-count projectile-file-exists-cache) 0)
(run-with-timer 10 nil 'projectile-file-exists-cache-cleanup)))))
(defun projectile-file-exists-p (filename)
"Return t if file FILENAME exist.
A wrapper around `file-exists-p' with additional caching support."
(let* ((file-remote (file-remote-p filename))
(expire-seconds
(if file-remote
(and projectile-file-exists-remote-cache-expire
(> projectile-file-exists-remote-cache-expire 0)
projectile-file-exists-remote-cache-expire)
(and projectile-file-exists-local-cache-expire
(> projectile-file-exists-local-cache-expire 0)
projectile-file-exists-local-cache-expire)))
(remote-file-name-inhibit-cache (if expire-seconds
expire-seconds
remote-file-name-inhibit-cache)))
(if (not expire-seconds)
(file-exists-p filename)
(let* ((current-time (current-time))
(cached (gethash filename projectile-file-exists-cache))
(cached-value (if cached (car cached)))
(cached-expire (if cached (cdr cached)))
(cached-expired (if cached (time-less-p cached-expire current-time) t))
(value (or (and (not cached-expired) cached-value)
(if (file-exists-p filename) 'found 'notfound))))
(when (or (not cached) cached-expired)
(puthash filename
(cons value (time-add current-time (seconds-to-time expire-seconds)))
projectile-file-exists-cache))
(unless projectile-file-exists-cache-timer
(setq projectile-file-exists-cache-timer
(run-with-timer 10 nil 'projectile-file-exists-cache-cleanup)))
(equal value 'found)))))
;;;###autoload
(defun projectile-invalidate-cache (arg)
"Remove the current project's files from `projectile-projects-cache'.
With a prefix argument ARG prompts for the name of the project whose cache
to invalidate."
(interactive "P")
(let ((project-root
(if arg
(completing-read "Remove cache for: "
(projectile-hash-keys projectile-projects-cache))
(projectile-project-root))))
(setq projectile-project-root-cache (make-hash-table :test 'equal))
(remhash project-root projectile-project-type-cache)
(remhash project-root projectile-projects-cache)
(remhash project-root projectile-projects-cache-time)
(projectile-serialize-cache)
(when projectile-verbose
(message "Invalidated Projectile cache for %s."
(propertize project-root 'face 'font-lock-keyword-face))))
(when (fboundp 'recentf-cleanup)
(recentf-cleanup)))
(defun projectile-time-seconds ()
"Return the number of seconds since the unix epoch."
(cl-destructuring-bind (high low _usec _psec) (current-time)
(+ (lsh high 16) low)))
(defun projectile-cache-project (project files)
"Cache PROJECTs FILES.
The cache is created both in memory and on the hard drive."
(when projectile-enable-caching
(puthash project files projectile-projects-cache)
(puthash project (projectile-time-seconds) projectile-projects-cache-time)
(projectile-serialize-cache)))
;;;###autoload
(defun projectile-purge-file-from-cache (file)
"Purge FILE from the cache of the current project."
(interactive
(list (projectile-completing-read
"Remove file from cache: "
(projectile-current-project-files))))
(let* ((project-root (projectile-project-root))
(project-cache (gethash project-root projectile-projects-cache)))
(if (projectile-file-cached-p file project-root)
(progn
(puthash project-root (remove file project-cache) projectile-projects-cache)
(projectile-serialize-cache)
(when projectile-verbose
(message "%s removed from cache" file)))
(error "%s is not in the cache" file))))
;;;###autoload
(defun projectile-purge-dir-from-cache (dir)
"Purge DIR from the cache of the current project."
(interactive
(list (projectile-completing-read
"Remove directory from cache: "
(projectile-current-project-dirs))))
(let* ((project-root (projectile-project-root))
(project-cache (gethash project-root projectile-projects-cache)))
(puthash project-root
(cl-remove-if (lambda (str) (string-prefix-p dir str)) project-cache)
projectile-projects-cache)))
(defun projectile-file-cached-p (file project)
"Check if FILE is already in PROJECT cache."
(member file (gethash project projectile-projects-cache)))
;;;###autoload
(defun projectile-cache-current-file ()
"Add the currently visited file to the cache."
(interactive)
(let ((current-project (projectile-project-root)))
(when (and (buffer-file-name) (gethash (projectile-project-root) projectile-projects-cache))
(let* ((abs-current-file (file-truename (buffer-file-name)))
(current-file (file-relative-name abs-current-file current-project)))
(unless (or (projectile-file-cached-p current-file current-project)
(projectile-ignored-directory-p (file-name-directory abs-current-file))
(projectile-ignored-file-p abs-current-file))
(puthash current-project
(cons current-file (gethash current-project projectile-projects-cache))
projectile-projects-cache)
(projectile-serialize-cache)
(message "File %s added to project %s cache."
(propertize current-file 'face 'font-lock-keyword-face)
(propertize current-project 'face 'font-lock-keyword-face)))))))
;; cache opened files automatically to reduce the need for cache invalidation
(defun projectile-cache-files-find-file-hook ()
"Function for caching files with `find-file-hook'."
(let ((project-root (projectile-project-p)))
(when (and projectile-enable-caching
project-root
(not (projectile-ignored-project-p project-root)))
(projectile-cache-current-file))))
(defun projectile-track-known-projects-find-file-hook ()
"Function for caching projects with `find-file-hook'."
(when (and projectile-track-known-projects-automatically (projectile-project-p))
(let ((known-projects (and (sequencep projectile-known-projects)
(copy-sequence projectile-known-projects))))
(projectile-add-known-project (projectile-project-root))
(unless (equal known-projects projectile-known-projects)
(projectile-merge-known-projects)))))
(defun projectile-maybe-invalidate-cache (force)
"Invalidate if FORCE or project's dirconfig newer than cache."
(when (or force (file-newer-than-file-p (projectile-dirconfig-file)
projectile-cache-file))
(projectile-invalidate-cache nil)))
;;;###autoload
(defun projectile-discover-projects-in-directory (directory)
"Discover any projects in DIRECTORY and add them to the projectile cache.
This function is not recursive and only adds projects with roots
at the top level of DIRECTORY."
(interactive
(list (read-directory-name "Starting directory: ")))
(let ((subdirs (directory-files directory t)))
(mapcar
(lambda (dir)
(when (and (file-directory-p dir)
(not (member (file-name-nondirectory dir) '(".." "."))))
(let ((default-directory dir))
(when (projectile-project-p)
(projectile-add-known-project (projectile-project-root))))))
subdirs)))
(defadvice delete-file (before purge-from-projectile-cache (filename &optional trash))
(if (and projectile-enable-caching (projectile-project-p))
(let* ((project-root (projectile-project-root))
(true-filename (file-truename filename))
(relative-filename (file-relative-name true-filename project-root)))
(if (projectile-file-cached-p relative-filename project-root)
(projectile-purge-file-from-cache relative-filename)))))
;;; Project root related utilities
(defun projectile-parent (path)
"Return the parent directory of PATH.
PATH may be a file or directory and directory paths may end with a slash."
(directory-file-name (file-name-directory (directory-file-name (expand-file-name path)))))
(defun projectile-locate-dominating-file (file name)
"Look up the directory hierarchy from FILE for a directory containing NAME.
Stop at the first parent directory containing a file NAME,
and return the directory. Return nil if not found.
Instead of a string, NAME can also be a predicate taking one argument
\(a directory) and returning a non-nil value if that directory is the one for
which we're looking."
;; copied from files.el (stripped comments) emacs-24 bzr branch 2014-03-28 10:20
(setq file (abbreviate-file-name file))
(let ((root nil)
try)
(while (not (or root
(null file)
(string-match locate-dominating-stop-dir-regexp file)))
(setq try (if (stringp name)
(projectile-file-exists-p (expand-file-name name file))
(funcall name file)))
(cond (try (setq root file))
((equal file (setq file (file-name-directory
(directory-file-name file))))
(setq file nil))))
(and root (expand-file-name (file-name-as-directory root)))))
(defvar-local projectile-project-root nil
"Defines a custom Projectile project root.
This is intended to be used as a file local variable.")
(defun projectile-root-local (_dir)
"A simple wrapper around `projectile-project-root'."
projectile-project-root)
(defun projectile-root-top-down (dir &optional list)
"Identify a project root in DIR by top-down search for files in LIST.
If LIST is nil, use `projectile-project-root-files' instead.
Return the first (topmost) matched directory or nil if not found."
(projectile-locate-dominating-file
dir
(lambda (dir)
(cl-find-if (lambda (f) (projectile-file-exists-p (expand-file-name f dir)))
(or list projectile-project-root-files)))))
(defun projectile-root-bottom-up (dir &optional list)
"Identify a project root in DIR by bottom-up search for files in LIST.
If LIST is nil, use `projectile-project-root-files-bottom-up' instead.
Return the first (bottommost) matched directory or nil if not found."
(cl-some (lambda (name) (projectile-locate-dominating-file dir name))
(or list projectile-project-root-files-bottom-up)))
(defun projectile-root-top-down-recurring (dir &optional list)
"Identify a project root in DIR by recurring top-down search for files in LIST.
If LIST is nil, use `projectile-project-root-files-top-down-recurring'
instead. Return the last (bottommost) matched directory in the
topmost sequence of matched directories. Nil otherwise."
(cl-some
(lambda (f)
(projectile-locate-dominating-file
dir
(lambda (dir)
(and (projectile-file-exists-p (expand-file-name f dir))
(or (string-match locate-dominating-stop-dir-regexp (projectile-parent dir))
(not (projectile-file-exists-p (expand-file-name f (projectile-parent dir)))))))))
(or list projectile-project-root-files-top-down-recurring)))
(defvar-local projectile-cached-project-root nil
"Cached root of the current Projectile project. If non-nil, it
is used as the return value of `projectile-project-root' for
performance (unless the variable `projectile-project-root' is
also set). If nil, it is recalculated the next time
`projectile-project-root' is called.
This variable is reset automatically when Projectile detects that
the `buffer-file-name' has changed. It can also be reset manually
by calling `projectile-reset-cached-project-root'.")
(defvar-local projectile-cached-buffer-file-name nil
"The last known value of `buffer-file-name' for the current
buffer. This is used to detect a change in `buffer-file-name',
which triggers a reset of `projectile-cached-project-root' and
`projectile-cached-project-name'.")
(defun projectile-project-root ()
"Retrieves the root directory of a project if available.
The current directory is assumed to be the project's root otherwise.
When not in project the behaviour of the function is controlled by
`projectile-require-project-root'. If it's set to nil the function
will return the current directory, otherwise it'd raise an error."
;; the cached value will be 'none in the case of no project root (this is to
;; ensure it is not reevaluated each time when not inside a project) so use
;; cl-subst to replace this 'none value with nil so a nil value is used
;; instead
(or (cl-subst nil 'none
(or (and projectile-cached-buffer-file-name
(equal projectile-cached-buffer-file-name (or buffer-file-name 'none))
projectile-cached-project-root)
(progn
(setq projectile-cached-buffer-file-name (or buffer-file-name 'none))
(setq projectile-cached-project-root
;; The `is-local' and `is-connected' variables are
;; used to fix the behavior where Emacs hangs
;; because of Projectile when you open a file over
;; TRAMP. It basically prevents Projectile from
;; trying to find information about files for which
;; it's not possible to get that information right
;; now.
(or (let* ((dir default-directory)
(is-local (not (file-remote-p dir))) ;; `true' if the file is local
(is-connected (file-remote-p dir nil t))) ;; `true' if the file is remote AND we are connected to the remote
(when (or is-local is-connected)
(cl-some
(lambda (func)
(let* ((cache-key (format "%s-%s" func dir))
(cache-value (gethash cache-key projectile-project-root-cache)))
(if (and cache-value (file-exists-p cache-value))
cache-value
(let ((value (funcall func (file-truename dir))))
(puthash cache-key value projectile-project-root-cache)
value))))
projectile-project-root-files-functions)))
;; set cached to none so is non-nil so we don't try
;; and look it up again
'none)))))
(if projectile-require-project-root
(error "You're not in a project")
default-directory)))
(defun projectile-file-truename (file-name)
"Return the truename of FILE-NAME.
A thin wrapper around `file-truename' that handles nil."
(when file-name
(file-truename file-name)))
(defun projectile-project-p ()
"Check if we're in a project."
(condition-case nil
(projectile-project-root)
(error nil)))
(defun projectile-default-project-name (project-root)
"Default function used create project name to be displayed based on the value of PROJECT-ROOT."
(file-name-nondirectory (directory-file-name project-root)))
(defvar-local projectile-cached-project-name nil
"Cached name of the current Projectile project. If non-nil, it
is used as the return value of `projectile-project-name' for
performance (unless the variable `projectile-project-name' is
also set). If nil, it is recalculated the next time
`projectile-project-name' is called.
This variable is reset automatically when Projectile detects that
the `buffer-file-name' has changed. It can also be reset manually
by calling `projectile-reset-cached-project-name'.")
(defun projectile-reset-cached-project-root ()
"Reset the value of `projectile-cached-project-root' to nil.
This means that it is automatically recalculated the next time
function `projectile-project-root' is called."
(interactive)
(setq projectile-cached-project-root nil))
(defun projectile-reset-cached-project-name ()
"Reset the value of `projectile-cached-project-name' to nil.
This means that it is automatically recalculated the next time
function `projectile-project-name' is called."
(interactive)
(setq projectile-cached-project-name nil))
(defun projectile-project-name ()
"Return project name."
(or projectile-project-name
(and projectile-cached-buffer-file-name
(equal projectile-cached-buffer-file-name buffer-file-name)
projectile-cached-project-name)
(progn
(setq projectile-cached-buffer-file-name buffer-file-name)
(setq projectile-cached-project-name
(let ((project-root
(condition-case nil
(projectile-project-root)
(error nil))))
(if project-root