/
forcing.lisp
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/
forcing.lisp
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;;;; -------------------------------------------------------------------------
;;;; Forcing
(uiop/package:define-package :asdf/forcing
(:recycle :asdf/forcing :asdf/plan :asdf)
(:use :uiop/common-lisp :uiop :asdf/upgrade :asdf/session
:asdf/component :asdf/operation :asdf/system :asdf/system-registry)
(:export
#:forcing #:make-forcing #:forced #:forced-not #:performable-p
#:normalize-forced-systems #:normalize-forced-not-systems
#:action-forced-p #:action-forced-not-p))
(in-package :asdf/forcing)
;;;; Forcing
(with-upgradability ()
(defclass forcing ()
(;; Can plans using this forcing be PERFORMed? A plan that has different force and force-not
;; settings than the session can only be used for read-only queries that do not cause the
;; status of any action to be raised.
(performable-p :initform nil :initarg :performable-p :reader performable-p)
;; Parameters
(parameters :initform nil :initarg :parameters :reader parameters)
;; Table of systems specified via :force arguments
(forced :initarg :forced :reader forced)
;; Table of systems specified via :force-not argument (and/or immutable)
(forced-not :initarg :forced-not :reader forced-not)))
(defgeneric action-forced-p (forcing operation component)
(:documentation "Is this action forced to happen in this plan?"))
(defgeneric action-forced-not-p (forcing operation component)
(:documentation "Is this action forced to not happen in this plan?
Takes precedence over action-forced-p."))
(defun normalize-forced-systems (force system)
"Given a SYSTEM on which operate is called and the specified FORCE argument,
extract a hash-set of systems that are forced, or a predicate on system names,
or NIL if none are forced, or :ALL if all are."
(etypecase force
((or (member nil :all) hash-table function) force)
(cons (list-to-hash-set (mapcar #'coerce-name force)))
((eql t) (when system (list-to-hash-set (list (coerce-name system)))))))
(defun normalize-forced-not-systems (force-not system)
"Given a SYSTEM on which operate is called, the specified FORCE-NOT argument,
and the set of IMMUTABLE systems, extract a hash-set of systems that are effectively forced-not,
or predicate on system names, or NIL if none are forced, or :ALL if all are."
(let ((requested
(etypecase force-not
((or (member nil :all) hash-table function) force-not)
(cons (list-to-hash-set (mapcar #'coerce-name force-not)))
((eql t) (if system (let ((name (coerce-name system)))
#'(lambda (x) (not (equal x name))))
:all)))))
(if (and *immutable-systems* requested)
#'(lambda (x) (or (call-function requested x)
(call-function *immutable-systems* x)))
(or *immutable-systems* requested))))
;; TODO: shouldn't we be looking up the primary system name, rather than the system name?
(defun action-override-p (forcing operation component override-accessor)
"Given a plan, an action, and a function that given the plan accesses a set of overrides,
i.e. force or force-not, see if the override applies to the current action."
(declare (ignore operation))
(call-function (funcall override-accessor forcing)
(coerce-name (component-system (find-component () component)))))
(defmethod action-forced-p (forcing operation component)
(and
;; Did the user ask us to re-perform the action?
(action-override-p forcing operation component 'forced)
;; You really can't force a builtin system and :all doesn't apply to it.
(not (builtin-system-p (component-system component)))))
(defmethod action-forced-not-p (forcing operation component)
;; Did the user ask us to not re-perform the action?
;; NB: force-not takes precedence over force, as it should
(action-override-p forcing operation component 'forced-not))
;; Null forcing means no forcing either way
(defmethod action-forced-p ((forcing null) (operation operation) (component component))
nil)
(defmethod action-forced-not-p ((forcing null) (operation operation) (component component))
nil)
(defun or-function (fun1 fun2)
(cond
((or (null fun2) (eq fun1 :all)) fun1)
((or (null fun1) (eq fun2 :all)) fun2)
(t #'(lambda (x) (or (call-function fun1 x) (call-function fun2 x))))))
(defun make-forcing (&key performable-p system
(force nil force-p) (force-not nil force-not-p) &allow-other-keys)
(let* ((session-forcing (when *asdf-session* (forcing *asdf-session*)))
(system (and system (coerce-name system)))
(forced (normalize-forced-systems force system))
(forced-not (normalize-forced-not-systems force-not system))
(parameters `(,@(when force `(:force ,force))
,@(when force-not `(:force-not ,force-not))
,@(when (or (eq force t) (eq force-not t)) `(:system ,system))
,@(when performable-p `(:performable-p t))))
forcing)
(cond
((not session-forcing)
(setf forcing (make-instance 'forcing
:performable-p performable-p :parameters parameters
:forced forced :forced-not forced-not))
(when (and performable-p *asdf-session*)
(setf (forcing *asdf-session*) forcing)))
(performable-p
(when (and (not (equal parameters (parameters session-forcing)))
(or force-p force-not-p))
(parameter-error "~*~S and ~S arguments not allowed in a nested call to ~3:*~S ~
unless identically to toplevel"
(find-symbol* :operate :asdf) :force :force-not))
(setf forcing session-forcing))
(t
(setf forcing (make-instance 'forcing
;; Combine force and force-not with values from the toplevel-plan
:parameters `(,@parameters :on-top-of ,(parameters session-forcing))
:forced (or-function (forced session-forcing) forced)
:forced-not (or-function (forced-not session-forcing) forced-not)))))
forcing))
(defmethod print-object ((forcing forcing) stream)
(print-unreadable-object (forcing stream :type t)
(format stream "~{~S~^ ~}" (parameters forcing))))
;; During upgrade, the *asdf-session* may legitimately be NIL, so we must handle that case.
(defmethod forcing ((x null))
(if-let (session (toplevel-asdf-session))
(forcing session)
(make-forcing :performable-p t)))
;; When performing a plan that is a list of actions, use the toplevel asdf sesssion forcing.
(defmethod forcing ((x cons)) (forcing (toplevel-asdf-session))))