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Diffstat (limited to 'configs/shared/emacs/.emacs.d/elpa/sesman-20180903.1826/sesman.el')
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diff --git a/configs/shared/emacs/.emacs.d/elpa/sesman-20180903.1826/sesman.el b/configs/shared/emacs/.emacs.d/elpa/sesman-20180903.1826/sesman.el deleted file mode 100644 index 42c5e617beca..000000000000 --- a/configs/shared/emacs/.emacs.d/elpa/sesman-20180903.1826/sesman.el +++ /dev/null @@ -1,931 +0,0 @@ -;;; sesman.el --- Generic Session Manager -*- lexical-binding: t -*- -;; -;; Copyright (C) 2018, Vitalie Spinu -;; Author: Vitalie Spinu -;; URL: https://github.com/vspinu/sesman -;; Keywords: process -;; Version: 0.3 -;; Package-Requires: ((emacs "25")) -;; Keywords: processes, tools, vc -;; -;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; -;; -;; 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 this program; see the file COPYING. If not, write to -;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth -;; Floor, Boston, MA 02110-1301, USA. -;; -;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; -;; -;;; Commentary: -;; -;; Sesman provides facilities for session management and interactive session -;; association with the current contexts (project, directory, buffers etc). See -;; project's readme for more details. -;; -;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; -;; -;;; Code: - -(require 'cl-generic) -(require 'seq) -(require 'subr-x) - -(defgroup sesman nil - "Generic Session Manager." - :prefix "sesman-" - :group 'tools - :link '(url-link :tag "GitHub" "https://github.com/vspinu/sesman")) - -(defface sesman-project-face - '((default (:inherit font-lock-doc-face))) - "Face used to mark projects." - :group 'sesman) - -(defface sesman-directory-face - '((default (:inherit font-lock-type-face))) - "Face used to mark directories." - :group 'sesman) - -(defface sesman-buffer-face - '((default (:inherit font-lock-preprocessor-face))) - "Face used to mark buffers." - :group 'sesman) - -;; (defcustom sesman-disambiguate-by-relevance t -;; "If t choose most relevant session in ambiguous situations, otherwise ask. -;; Ambiguity arises when multiple sessions are associated with current context. By -;; default only projects could be associated with multiple sessions. See -;; `sesman-single-link-contexts' in order to change that. Relevance is decided by -;; system's implementation, see `sesman-more-relevant-p'." -;; :group 'sesman -;; :type 'boolean) - -(defcustom sesman-single-link-context-types '(buffer) - "List of context types to which at most one session can be linked." - :group 'sesman - :type '(repeat symbol) - :package-version '(sesman . "0.1.0")) - -;; FIXME: -;; (defcustom sesman-abbreviate-paths 2 -;; "Abbreviate paths to that many parents. -;; When set to nil, don't abbreviate directories." -;; :group 'sesman -;; :type '(choice number -;; (const :tag "Don't abbreviate" nil))) - -(defvar sesman-sessions-hashmap (make-hash-table :test #'equal) - "Hash-table of all sesman sessions. -Key is a cons (system-name . session-name).") - -(defvar sesman-links-alist nil - "An alist of all sesman links. -Each element is of the form (key cxt-type cxt-value) where -\"key\" is of the form (system-name . session-name). system-name -and cxt-type must be symbols.") - -(defvar-local sesman-system nil - "Name of the system managed by `sesman'. -Can be either a symbol, or a function returning a symbol.") -(put 'sesman-system 'permanent-local 't) - - - -;; Internal Utilities - -(defun sesman--on-C-u-u-sessions (system which) - (cond - ((null which) - (let ((ses (sesman-current-session system))) - (when ses - (list ses)))) - ((or (equal which '(4)) (eq which 'linked)) - (sesman-linked-sessions system)) - ((or (equal which '(16)) (eq which 'all) (eq which t)) - (sesman--all-system-sessions system 'sort)) - ;; session itself - ((and (listp which) - (or (stringp (car which)) - (symbolp (car which)))) - (list which)) - ;; session name - ((or (stringp which) - (symbolp which) - (gethash (cons system which) sesman-sessions-hashmap))) - (t (error "Invalid which argument (%s)" which)))) - -(defun sesman--cap-system-name (system) - (let ((name (symbol-name system))) - (if (string-match-p "^[[:upper:]]" name) - name - (capitalize name)))) - -(defun sesman--least-specific-context (system) - (seq-some (lambda (ctype) - (when-let (val (sesman-context ctype system)) - (cons ctype val))) - (reverse (sesman-context-types system)))) - -(defun sesman--link-session-interactively (session cxt-type cxt-val) - (let ((system (sesman--system))) - (unless cxt-type - (let ((cxt (sesman--least-specific-context system))) - (setq cxt-type (car cxt) - cxt-val (cdr cxt)))) - (let ((cxt-name (symbol-name cxt-type))) - (if (member cxt-type (sesman-context-types system)) - (let ((session (or session - (sesman-ask-for-session - system - (format "Link with %s %s: " - cxt-name (sesman--abbrev-path-maybe - (sesman-context cxt-type system))) - (sesman--all-system-sessions system 'sort) - 'ask-new)))) - (sesman-link-session system session cxt-type cxt-val)) - (error (format "%s association not allowed for this system (%s)" - (capitalize cxt-name) - system)))))) - -(defun sesman--expand-path-maybe (obj) - (if (stringp obj) - (expand-file-name obj) - obj)) - -;; FIXME: incorporate `sesman-abbreviate-paths' -(defun sesman--abbrev-path-maybe (obj) - (if (stringp obj) - (abbreviate-file-name obj) - obj)) - -(defun sesman--system-in-buffer (&optional buffer) - (with-current-buffer (or buffer (current-buffer)) - (if (functionp sesman-system) - (funcall sesman-system) - sesman-system))) - -(defun sesman--system () - (if sesman-system - (if (functionp sesman-system) - (funcall sesman-system) - sesman-system) - (error "No `sesman-system' in buffer `%s'" (current-buffer)))) - -(defun sesman--all-system-sessions (&optional system sort) - "Return a list of sessions registered with SYSTEM. -If SORT is non-nil, sort in relevance order." - (let ((system (or system (sesman--system))) - sessions) - (maphash - (lambda (k s) - (when (eql (car k) system) - (push s sessions))) - sesman-sessions-hashmap) - (if sort - (sesman--sort-sessions system sessions) - sessions))) - -;; FIXME: make this a macro -(defun sesman--link-lookup-fn (&optional system ses-name cxt-type cxt-val x) - (let ((system (or system (caar x))) - (ses-name (or ses-name (cdar x))) - (cxt-type (or cxt-type (nth 1 x))) - (cxt-val (or cxt-val (nth 2 x)))) - (lambda (el) - (and (or (null system) (eq (caar el) system)) - (or (null ses-name) (equal (cdar el) ses-name)) - (or (null cxt-type) - (if (listp cxt-type) - (member (nth 1 el) cxt-type) - (eq (nth 1 el) cxt-type))) - (or (null cxt-val) (equal (nth 2 el) cxt-val)))))) - -(defun sesman--unlink (x) - (setq sesman-links-alist - (seq-remove (sesman--link-lookup-fn nil nil nil nil x) - sesman-links-alist))) - -(defun sesman--clear-links () - (setq sesman-links-alist - (seq-filter (lambda (x) - (gethash (car x) sesman-sessions-hashmap)) - sesman-links-alist))) - -(defun sesman--format-session-objects (system session &optional sep) - (let ((info (sesman-session-info system session))) - (if (and (listp info) - (keywordp (car info))) - (let ((ses-name (car session)) - (sep (or sep " ")) - (strings (or (plist-get info :strings) - (mapcar (lambda (x) (format "%s" x)) - (plist-get info :objects))))) - (mapconcat (lambda (str) - (replace-regexp-in-string ses-name "%%s" str nil t)) - strings sep)) - (format "%s" info)))) - -(defun sesman--format-session (system ses &optional prefix) - (format (propertize "%s%s [%s] linked-to %s" 'face 'bold) - (or prefix "") - (propertize (car ses) 'face 'bold) - (propertize (sesman--format-session-objects system ses ", ") 'face 'italic) - (sesman-grouped-links system ses t t))) - -(defun sesman--format-link (link) - (let* ((system (sesman--lnk-system-name link)) - (session (gethash (car link) sesman-sessions-hashmap))) - (format "%s(%s) -> %s [%s]" - (sesman--lnk-context-type link) - (propertize (sesman--abbrev-path-maybe (sesman--lnk-value link)) 'face 'bold) - (propertize (sesman--lnk-session-name link) 'face 'bold) - (if session - (sesman--format-session-objects system session) - "invalid")))) - -(defun sesman--ask-for-link (prompt links &optional ask-all) - (let* ((name.keys (mapcar (lambda (link) - (cons (sesman--format-link link) link)) - links)) - (name.keys (append name.keys - (when (and ask-all (> (length name.keys) 1)) - '(("*all*"))))) - (nms (mapcar #'car name.keys)) - (sel (completing-read prompt nms nil t nil nil (car nms)))) - (cond ((string= sel "*all*") - links) - (ask-all - (list (cdr (assoc sel name.keys)))) - (t - (cdr (assoc sel name.keys)))))) - -(defun sesman--sort-sessions (system sessions) - (seq-sort (lambda (x1 x2) - (sesman-more-relevant-p system x1 x2)) - sessions)) - -(defun sesman--sort-links (system links) - (seq-sort (lambda (x1 x2) - (sesman-more-relevant-p system - (gethash (car x1) sesman-sessions-hashmap) - (gethash (car x2) sesman-sessions-hashmap))) - links)) - -;; link data structure accessors -(defun sesman--lnk-system-name (lnk) - (caar lnk)) -(defun sesman--lnk-session-name (lnk) - (cdar lnk)) -(defun sesman--lnk-context-type (lnk) - (cadr lnk)) -(defun sesman--lnk-value (lnk) - (nth 2 lnk)) - - -;;; User Interface - -(defun sesman-post-command-hook nil - "Normal hook ran after every state-changing Sesman command.") - -;;;###autoload -(defun sesman-start () - "Start a Sesman session." - (interactive) - (let ((system (sesman--system))) - (message "Starting new %s session ..." system) - (prog1 (sesman-start-session system) - (run-hooks 'sesman-post-command-hook)))) - -;;;###autoload -(defun sesman-restart (&optional which) - "Restart sesman session. -When WHICH is nil, restart the current session; when a single universal -argument or 'linked, restart all linked sessions; when a double universal -argument, t or 'all, restart all sessions. For programmatic use, WHICH can also -be a session or a name of the session, in which case that session is restarted." - (interactive "P") - (let* ((system (sesman--system)) - (sessions (sesman--on-C-u-u-sessions system which))) - (if (null sessions) - (message "No %s sessions found" system) - (with-temp-message (format "Restarting %s %s %s" system - (if (= 1 (length sessions)) "session" "sessions") - (mapcar #'car sessions)) - (mapc (lambda (s) - (sesman-restart-session system s)) - sessions)) - ;; restarting is not guaranteed to finish here, but what can we do? - (run-hooks 'sesman-post-command-hook)))) - -;;;###autoload -(defun sesman-quit (&optional which) - "Terminate a Sesman session. -When WHICH is nil, kill only the current session; when a single universal -argument or 'linked, kill all linked sessions; when a double universal argument, -t or 'all, kill all sessions. For programmatic use, WHICH can also be a session -or a name of the session, in which case that session is killed." - (interactive "P") - (let* ((system (sesman--system)) - (sessions (sesman--on-C-u-u-sessions system which))) - (if (null sessions) - (message "No %s sessions found" system) - (with-temp-message (format "Killing %s %s %s" system - (if (= 1 (length sessions)) "session" "sessions") - (mapcar #'car sessions)) - (mapc (lambda (s) - (sesman-unregister system s) - (sesman-quit-session system s)) - sessions)) - (run-hooks 'sesman-post-command-hook)))) - -;;;###autoload -(defun sesman-info (&optional all) - "Display linked sessions info. -When ALL is non-nil, show info for all sessions." - (interactive "P") - (let* ((system (sesman--system)) - (i 1) - (sessions (if all - (sesman-sessions system t) - (sesman-linked-sessions system)))) - (if sessions - (message (mapconcat (lambda (ses) - (let ((prefix (if (> (length sessions) 1) - (if (sesman-relevant-session-p system ses) - (prog1 (format "%d " i) - (setq i (1+ i))) - " ") - ""))) - (sesman--format-session system ses prefix))) - sessions - "\n")) - (message "No %s %ssessions" system (if all "" "linked "))))) - -;;;###autoload -(defun sesman-link-with-buffer (&optional buffer session) - "Ask for SESSION and link with BUFFER. -BUFFER defaults to current buffer. On universal argument, or if BUFFER is 'ask, -ask for buffer." - (interactive "P") - (let ((buf (if (or (eq buffer 'ask) - (equal buffer '(4))) - (let ((this-system (sesman--system))) - (read-buffer "Link buffer: " (current-buffer) t - (lambda (buf-cons) - (equal this-system - (sesman--system-in-buffer (cdr buf-cons)))))) - (or buffer (current-buffer))))) - (sesman--link-session-interactively session 'buffer buf))) - -;;;###autoload -(defun sesman-link-with-directory (&optional dir session) - "Ask for SESSION and link with DIR. -DIR defaults to `default-directory'. On universal argument, or if DIR is 'ask, -ask for directory." - (interactive "P") - (let ((dir (if (or (eq dir 'ask) - (equal dir '(4))) - (read-directory-name "Link directory: ") - (or dir default-directory)))) - (sesman--link-session-interactively session 'directory dir))) - -;;;###autoload -(defun sesman-link-with-project (&optional project session) - "Ask for SESSION and link with PROJECT. -PROJECT defaults to current project. On universal argument, or if PROJECT is -'ask, ask for the project. SESSION defaults to the current session." - (interactive "P") - (let* ((system (sesman--system)) - (project (expand-file-name - (if (or (eq project 'ask) - (equal project '(4))) - ;; FIXME: should be a completion over all known projects for this system - (read-directory-name "Project: " (sesman-project system)) - (or project (sesman-project system)))))) - (sesman--link-session-interactively session 'project project))) - - ;;;###autoload -(defun sesman-link-with-least-specific (&optional session) - "Ask for SESSION and link with the least specific context available. -Normally the least specific context is the project. If not in a project, link -with the `default-directory'. If `default-directory' is nil, link with current -buffer." - (interactive "P") - (sesman--link-session-interactively session nil nil)) - -;;;###autoload -(defun sesman-unlink () - "Break any of the previously created links." - (interactive) - (let* ((system (sesman--system)) - (links (or (sesman-current-links system) - (user-error "No %s links found" system)))) - (mapc #'sesman--unlink - (sesman--ask-for-link "Unlink: " links 'ask-all))) - (run-hooks 'sesman-post-command-hook)) - -(declare-function sesman-browser "sesman-browser") -(defvar sesman-map - (let (sesman-map) - (define-prefix-command 'sesman-map) - (define-key sesman-map (kbd "C-i") #'sesman-info) - (define-key sesman-map (kbd "i") #'sesman-info) - (define-key sesman-map (kbd "C-w") #'sesman-browser) - (define-key sesman-map (kbd "w") #'sesman-browser) - (define-key sesman-map (kbd "C-s") #'sesman-start) - (define-key sesman-map (kbd "s") #'sesman-start) - (define-key sesman-map (kbd "C-r") #'sesman-restart) - (define-key sesman-map (kbd "r") #'sesman-restart) - (define-key sesman-map (kbd "C-q") #'sesman-quit) - (define-key sesman-map (kbd "q") #'sesman-quit) - (define-key sesman-map (kbd "C-l") #'sesman-link-with-least-specific) - (define-key sesman-map (kbd "l") #'sesman-link-with-least-specific) - (define-key sesman-map (kbd "C-b") #'sesman-link-with-buffer) - (define-key sesman-map (kbd "b") #'sesman-link-with-buffer) - (define-key sesman-map (kbd "C-d") #'sesman-link-with-directory) - (define-key sesman-map (kbd "d") #'sesman-link-with-directory) - (define-key sesman-map (kbd "C-p") #'sesman-link-with-project) - (define-key sesman-map (kbd "p") #'sesman-link-with-project) - (define-key sesman-map (kbd "C-u") #'sesman-unlink) - (define-key sesman-map (kbd " u") #'sesman-unlink) - sesman-map) - "Session management prefix keymap.") - -(defvar sesman-menu - '("Sesman" - ["Show Session Info" sesman-info] - "--" - ["Start" sesman-start] - ["Restart" sesman-restart :active (sesman-connected-p)] - ["Quit" sesman-quit :active (sesman-connected-p)] - "--" - ["Link with Buffer" sesman-link-with-buffer :active (sesman-connected-p)] - ["Link with Directory" sesman-link-with-directory :active (sesman-connected-p)] - ["Link with Project" sesman-link-with-project :active (sesman-connected-p)] - "--" - ["Unlink" sesman-unlink :active (sesman-connected-p)]) - "Sesman Menu.") - -(defun sesman-install-menu (map) - "Install `sesman-menu' into MAP." - (easy-menu-do-define 'seman-menu-open - map - (get 'sesman-menu 'variable-documentation) - sesman-menu)) - - -;;; System Generic - -(cl-defgeneric sesman-start-session (system) - "Start and return SYSTEM SESSION.") - -(cl-defgeneric sesman-quit-session (system session) - "Terminate SYSTEM SESSION.") - -(cl-defgeneric sesman-restart-session (system session) - "Restart SYSTEM SESSION. -By default, calls `sesman-quit-session' and then -`sesman-start-session'." - (let ((old-name (car session))) - (sesman-quit-session system session) - (let ((new-session (sesman-start-session system))) - (setcar new-session old-name)))) - -(cl-defgeneric sesman-session-info (_system session) - "Return a plist with :objects key containing user \"visible\" objects. -Optional :strings value is a list of string representations of objects. Optional -:map key is a local keymap to place on every object in the session browser. -Optional :buffers is a list of buffers which will be used for navigation from -the session browser. If :buffers is missing, buffers from :objects are used -instead." - (list :objects (cdr session))) - -(cl-defgeneric sesman-project (_system) - "Retrieve project root for SYSTEM in directory DIR. -DIR defaults to `default-directory'. Return a string or nil if no project has -been found." - nil) - -(cl-defgeneric sesman-more-relevant-p (_system session1 session2) - "Return non-nil if SESSION1 should be sorted before SESSION2. -By default, sort by session name. Systems should overwrite this method to -provide a more meaningful ordering. If your system objects are buffers you can -use `sesman-more-recent-p' utility in this method." - (not (string-greaterp (car session1) (car session2)))) - -(cl-defgeneric sesman-context-types (_system) - "Return a list of context types understood by SYSTEM. -Contexts must be sorted from most specific to least specific." - '(buffer directory project)) - - -;;; System API - -(defun sesman-session (system session-name) - "Retrieve SYSTEM's session with SESSION-NAME from global hash." - (let ((system (or system (sesman--system)))) - (gethash (cons system session-name) sesman-sessions-hashmap))) - -(defun sesman-sessions (system &optional sort) - "Return a list of all sessions registered with SYSTEM. -If SORT is non-nil, sessions are sorted in the relevance order and -`sesman-linked-sessions' lead the list." - (let ((system (or system (sesman--system)))) - (if sort - (delete-dups - (append (sesman-linked-sessions system) - ;; (sesman-friendly-sessions system) - (sesman--all-system-sessions system t))) - (sesman--all-system-sessions system)))) - -(defun sesman-linked-sessions (system &optional cxt-types) - "Return a list of SYSTEM sessions linked in current context. -CXT-TYPES is a list of context types to consider. Defaults to the -list returned from `sesman-context-types'." - (let* ((system (or system (sesman--system))) - (cxt-types (or cxt-types (sesman-context-types system)))) - ;; just in case some links are lingering due to user errors - (sesman--clear-links) - (delete-dups - (mapcar (lambda (assoc) - (gethash (car assoc) sesman-sessions-hashmap)) - (sesman-current-links system nil cxt-types))))) - -(defun sesman-has-sessions-p (system) - "Return t if there is at least one session registered with SYSTEM." - (let ((system (or system (sesman--system))) - (found)) - (condition-case nil - (maphash (lambda (k _) - (when (eq (car k) system) - (setq found t) - (throw 'found nil))) - sesman-sessions-hashmap) - (error)) - found)) - -(defvar sesman--select-session-history nil) -(defun sesman-ask-for-session (system prompt &optional sessions ask-new ask-all) - "Ask for a SYSTEM session with PROMPT. -SESSIONS defaults to value returned from `sesman-sessions'. If -ASK-NEW is non-nil, offer *new* option to start a new session. If -ASK-ALL is non-nil offer *all* option. If ASK-ALL is non-nil, -return a list of sessions, otherwise a single session." - (let* ((sessions (or sessions (sesman-sessions system))) - (name.syms (mapcar (lambda (s) - (let ((name (car s))) - (cons (if (symbolp name) (symbol-name name) name) - name))) - sessions)) - (nr (length name.syms)) - (syms (if (and (not ask-new) (= nr 0)) - (error "No %s sessions found" system) - (append name.syms - (when ask-new '(("*new*"))) - (when (and ask-all (> nr 1)) - '(("*all*")))))) - (def (caar syms)) - ;; (def (if (assoc (car sesman--select-session-history) syms) - ;; (car sesman--select-session-history) - ;; (caar syms))) - (sel (completing-read - prompt (mapcar #'car syms) nil t nil 'sesman--select-session-history def))) - (cond - ((string= sel "*new*") - (let ((ses (sesman-start-session system))) - (message "Started %s" (car ses)) - (if ask-all (list ses) ses))) - ((string= sel "*all*") - sessions) - (t - (let* ((sym (cdr (assoc sel syms))) - (ses (assoc sym sessions))) - (if ask-all (list ses) ses)))))) - -(defun sesman-current-session (system &optional cxt-types) - "Get the most relevant linked session for SYSTEM. -CXT-TYPES is as in `sesman-linked-sessions'." - (car (sesman-linked-sessions system cxt-types))) - -(defun sesman-ensure-session (system &optional cxt-types) - "Get the most relevant linked session for SYSTEM or throw if none exists. -CXT-TYPES is as in `sesman-linked-sessions'." - (or (car (sesman-linked-sessions system cxt-types)) - (user-error "No linked %s sessions" system))) - -(defvar sesman--cxt-abbrevs '(buffer "buf" project "proj" directory "dir")) -(defun sesman--format-context (cxt-type cxt-val extra-face) - (let* ((face (intern (format "sesman-%s-face" cxt-type))) - (short-type (propertize (or (plist-get sesman--cxt-abbrevs cxt-type) - (symbol-value cxt-type)) - 'face (list (if (facep face) - face - 'font-lock-function-name-face) - extra-face)))) - (concat short-type - (propertize (format "(%s)" cxt-val) - 'face extra-face)))) - -(defun sesman-grouped-links (system session &optional current-first as-string) - "Retrieve all links for SYSTEM's SESSION from the global `sesman-links-alist'. -Return an alist of the form - - ((buffer buffers..) - (directory directories...) - (project projects...)). - -When `CURRENT-FIRST' is non-nil, a cons of two lists as above is returned with -car containing links relevant in current context and cdr all other links. If -AS-STRING is non-nil, return an equivalent string representation." - (let* ((system (or system (sesman--system))) - (session (or session (sesman-current-session system))) - (ses-name (car session)) - (links (thread-last sesman-links-alist - (seq-filter (sesman--link-lookup-fn system ses-name)) - (sesman--sort-links system) - (reverse))) - (out (mapcar (lambda (x) (list x)) - (sesman-context-types system))) - (out-rel (when current-first - (copy-alist out)))) - (mapc (lambda (link) - (let* ((type (sesman--lnk-context-type link)) - (entry (if (and current-first - (sesman-relevant-link-p link)) - (assoc type out-rel) - (assoc type out)))) - (when entry - (setcdr entry (cons link (cdr entry)))))) - links) - (let ((out (delq nil (mapcar (lambda (el) (and (cdr el) el)) out))) - (out-rel (delq nil (mapcar (lambda (el) (and (cdr el) el)) out-rel)))) - (if as-string - (let ((fmt-fn (lambda (typed-links) - (let* ((type (car typed-links))) - (mapconcat (lambda (lnk) - (let ((val (sesman--abbrev-path-maybe - (sesman--lnk-value lnk)))) - (sesman--format-context type val 'italic))) - (cdr typed-links) - ", "))))) - (if out-rel - (concat (mapconcat fmt-fn out-rel ", ") - (when out " | ") - (mapconcat fmt-fn out ", ")) - (mapconcat fmt-fn out ", "))) - (if current-first - (cons out-rel out) - out))))) - -(defun sesman-link-session (system session &optional cxt-type cxt-val) - "Link SYSTEM's SESSION to context give by CXT-TYPE and CXT-VAL. -If CXT-TYPE is nil, use the least specific type available in the current -context. If CXT-TYPE is non-nil, and CXT-VAL is not given, retrieve it with -`sesman-context'." - (let* ((ses-name (or (car-safe session) - (error "SESSION must be a headed list"))) - (cxt-val (or cxt-val - (sesman--expand-path-maybe - (or (if cxt-type - (sesman-context cxt-type system) - (let ((cxt (sesman--least-specific-context system))) - (setq cxt-type (car cxt)) - (cdr cxt))) - (error "No local context of type %s" cxt-type))))) - (key (cons system ses-name)) - (link (list key cxt-type cxt-val))) - (if (member cxt-type sesman-single-link-context-types) - (thread-last sesman-links-alist - (seq-remove (sesman--link-lookup-fn system nil cxt-type cxt-val)) - (cons link) - (setq sesman-links-alist)) - (unless (seq-filter (sesman--link-lookup-fn system ses-name cxt-type cxt-val) - sesman-links-alist) - (setq sesman-links-alist (cons link sesman-links-alist)))) - (run-hooks 'sesman-post-command-hook) - link)) - -(defun sesman-links (system &optional session-or-name cxt-types sort) - "Retrieve all links for SYSTEM, SESSION-OR-NAME and CXT-TYPES. -SESSION-OR-NAME can be either a session or a name of the session. If SORT is -non-nil links are sorted in relevance order and `sesman-current-links' lead the -list, otherwise links are returned in the creation order." - (let* ((ses-name (if (listp session-or-name) - (car session-or-name) - session-or-name)) - (lfn (sesman--link-lookup-fn system ses-name cxt-types))) - (if sort - (delete-dups (append - (sesman-current-links system ses-name) - (sesman--sort-links system (seq-filter lfn sesman-links-alist)))) - (seq-filter lfn sesman-links-alist)))) - -(defun sesman-current-links (system &optional session-or-name cxt-types) - "Retrieve all active links in current context for SYSTEM and SESSION-OR-NAME. -SESSION-OR-NAME can be either a session or a name of the session. CXT-TYPES is a -list of context types to consider. Returned links are a subset of -`sesman-links-alist' sorted in order of relevance." - ;; mapcan is a built-in in 26.1; don't want to require cl-lib for one function - (let ((ses-name (if (listp session-or-name) - (car session-or-name) - session-or-name))) - (seq-mapcat - (lambda (cxt-type) - (let ((lfn (sesman--link-lookup-fn system ses-name cxt-type))) - (sesman--sort-links - system - (seq-filter (lambda (l) - (and (funcall lfn l) - (sesman-relevant-context-p cxt-type (sesman--lnk-value l)))) - sesman-links-alist)))) - (or cxt-types (sesman-context-types system))))) - -(defun sesman-has-links-p (system &optional cxt-types) - "Return t if there is at least one linked session. -CXT-TYPES defaults to `sesman-context-types' for current SYSTEM." - (let ((cxt-types (or cxt-types (sesman-context-types system))) - (found)) - (condition-case nil - (mapc (lambda (l) - (when (eq system (sesman--lnk-system-name l)) - (let ((cxt (sesman--lnk-context-type l))) - (when (and (member cxt cxt-types) - (sesman-relevant-context-p cxt (sesman--lnk-value l))) - (setq found t) - (throw 'found nil))))) - sesman-links-alist) - (error)) - found)) - -(defun sesman-register (system session) - "Register SESSION into `sesman-sessions-hashmap' and `sesman-links-alist'. -SYSTEM defaults to current system. If a session with same name is already -registered in `sesman-sessions-hashmap', change the name by appending \"#1\", -\"#2\" ... to the name. This function should be called by system-specific -connection initializers (\"run-xyz\", \"xyz-jack-in\" etc.)." - (let* ((system (or system (sesman--system))) - (ses-name (car session)) - (ses-name0 (car session)) - (i 1)) - (while (sesman-session system ses-name) - (setq ses-name (format "%s#%d" ses-name0 i) - i (1+ i))) - (setq session (cons ses-name (cdr session))) - (puthash (cons system ses-name) session sesman-sessions-hashmap) - (sesman-link-session system session) - session)) - -(defun sesman-unregister (system session) - "Unregister SESSION. -SYSTEM defaults to current system. Remove session from -`sesman-sessions-hashmap' and `sesman-links-alist'." - (let ((ses-key (cons system (car session)))) - (remhash ses-key sesman-sessions-hashmap) - (sesman--clear-links) - session)) - -(defun sesman-add-object (system session-name object &optional allow-new) - "Add (destructively) OBJECT to session SESSION-NAME of SYSTEM. -If ALLOW-NEW is nil and session with SESSION-NAME does not exist -throw an error, otherwise register a new session with -session (list SESSION-NAME OBJECT)." - (let* ((system (or system (sesman--system))) - (session (sesman-session system session-name))) - (if session - (setcdr session (cons object (cdr session))) - (if allow-new - (sesman-register system (list session-name object)) - (error "%s session '%s' does not exist" - (sesman--cap-system-name system) session-name))))) - -(defun sesman-remove-object (system session-name object &optional auto-unregister no-error) - "Remove (destructively) OBJECT from session SESSION-NAME of SYSTEM. -If SESSION-NAME is nil, retrieve the session with -`sesman-session-for-object'. If OBJECT is the last object in sesman -session, `sesman-unregister' the session. If AUTO-UNREGISTER is non-nil -unregister sessions of length 0 and remove all the links with the session. -If NO-ERROR is non-nil, don't throw an error if OBJECT is not found in any -session. This is useful if there are several \"concurrent\" parties which -can remove the object." - (let* ((system (or system (sesman--system))) - (session (if session-name - (sesman-session system session-name) - (sesman-session-for-object system object no-error))) - (new-session (delete object session))) - (cond ((null new-session)) - ((= (length new-session) 1) - (when auto-unregister - (sesman-unregister system session))) - (t - (puthash (cons system (car session)) new-session sesman-sessions-hashmap))))) - -(defun sesman-session-for-object (system object &optional no-error) - "Retrieve SYSTEM session which contains OBJECT. -When NO-ERROR is non-nil, don't throw an error if OBJECT is not part of any -session. In such case, return nil." - (let* ((system (or system (sesman--system))) - (sessions (sesman--all-system-sessions system))) - (or (seq-find (lambda (ses) - (seq-find (lambda (x) (equal object x)) (cdr ses))) - sessions) - (unless no-error - (error "%s is not part of any %s sessions" - object system))))) - -(defun sesman-session-name-for-object (system object &optional no-error) - "Retrieve the name of the SYSTEM's session containing OBJECT. -When NO-ERROR is non-nil, don't throw an error if OBJCECT is not part of -any session. In such case, return nil." - (car (sesman-session-for-object system object no-error))) - -(defun sesman-more-recent-p (bufs1 bufs2) - "Return t if BUFS1 is more recent than BUFS2. -BUFS1 and BUFS2 are either buffers or lists of buffers. When lists of -buffers, most recent buffers from each list are considered. To be used -primarily in `sesman-more-relevant-p' methods when session objects are -buffers." - (let ((bufs1 (if (bufferp bufs1) (list bufs1) bufs1)) - (bufs2 (if (bufferp bufs2) (list bufs2) bufs2))) - (eq 1 (seq-some (lambda (b) - (if (member b bufs1) - 1 - (when (member b bufs2) - -1))) - (buffer-list))))) - - -;;; Contexts - -(defvar sesman--path-cache (make-hash-table :test #'equal)) -;; path caching because file-truename is very slow -(defun sesman--expand-path (path) - (or (gethash path sesman--path-cache) - (puthash path (file-truename path) sesman--path-cache))) - -(cl-defgeneric sesman-context (_cxt-type _system) - "Given SYSTEM and context type CXT-TYPE return the context.") -(cl-defmethod sesman-context ((_cxt-type (eql buffer)) _system) - "Return current buffer." - (current-buffer)) -(cl-defmethod sesman-context ((_cxt-type (eql directory)) _system) - "Return current directory." - (sesman--expand-path default-directory)) -(cl-defmethod sesman-context ((_cxt-type (eql project)) system) - "Return current project." - (let ((proj (or - (sesman-project (or system (sesman--system))) - ;; Normally we would use (project-roots (project-current)) but currently - ;; project-roots fails on nil and doesn't work on custom `('foo . - ;; "path/to/project"). So, use vc as a fallback and don't use project.el at - ;; all for now. - (vc-root-dir)))) - (when proj - (sesman--expand-path proj)))) - -(cl-defgeneric sesman-relevant-context-p (_cxt-type cxt) - "Non-nil if context CXT is relevant to current context of type CXT-TYPE.") -(cl-defmethod sesman-relevant-context-p ((_cxt-type (eql buffer)) buf) - "Non-nil if BUF is `current-buffer'." - (eq (current-buffer) buf)) -(cl-defmethod sesman-relevant-context-p ((_cxt-type (eql directory)) dir) - "Non-nil if DIR is the parent or equals the `default-directory'." - (when (and dir default-directory) - (string-match-p (concat "^" (sesman--expand-path dir)) - (sesman--expand-path default-directory)))) -(cl-defmethod sesman-relevant-context-p ((_cxt-type (eql project)) proj) - "Non-nil if PROJ is the parent or equal to the `default-directory'." - (when (and proj default-directory) - (string-match-p (concat "^" (sesman--expand-path proj)) - (sesman--expand-path default-directory)))) - -(defun sesman-relevant-link-p (link &optional cxt-types) - "Return non-nil if LINK is relevant to the current context. -If CXT-TYPES is non-nil, only check relevance for those contexts." - (when (or (null cxt-types) - (member (sesman--lnk-context-type link) cxt-types)) - (sesman-relevant-context-p - (sesman--lnk-context-type link) - (sesman--lnk-value link)))) - -(defun sesman-relevant-session-p (system session &optional cxt-types) - "Return non-nil if SYSTEM's SESSION is relevant to the current context. -If CXT-TYPES is non-nil, only check relevance for those contexts." - (seq-some #'sesman-relevant-link-p - (sesman-links system session cxt-types))) - -(provide 'sesman) - -;;; sesman.el ends here |