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;;; This is asdf: Another System Definition Facility. Revision: @@VERSION@@
;;; hash - $Format:%H$

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;;;
;;; Feedback, bug reports, and patches are all welcome: please mail to
;;; <asdf-devel@common-lisp.net>. But note first that the canonical
;;; source for asdf is presently on common-lisp.net at
;;; <URL:http://common-lisp.net/project/asdf/>

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;;;
;;; If you obtained this copy from anywhere else, and you experience
;;; trouble using it, or find bugs, you may want to check at the
;;; location above for a more recent version (and for documentation
;;; and test files, if your copy came without them) before reporting
;;; bugs. There are usually two "supported" revisions - the git HEAD

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;;; is the latest development version, whereas the revision tagged
;;; RELEASE may be slightly older but is considered `stable'
;;; Copyright (c) 2001-2009 Daniel Barlow and contributors

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;;;
;;; Permission is hereby granted, free of charge, to any person obtaining
;;; a copy of this software and associated documentation files (the
;;; "Software"), to deal in the Software without restriction, including
;;; without limitation the rights to use, copy, modify, merge, publish,
;;; distribute, sublicense, and/or sell copies of the Software, and to
;;; permit persons to whom the Software is furnished to do so, subject to
;;; the following conditions:
;;;
;;; The above copyright notice and this permission notice shall be
;;; included in all copies or substantial portions of the Software.
;;;
;;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
;;; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
;;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
;;; NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
;;; LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
;;; OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
;;; WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
;;; the problem with writing a defsystem replacement is bootstrapping:
;;; we can't use defsystem to compile it. Hence, all in one file
(defpackage #:asdf
(:export #:defsystem #:oos #:operate #:find-system #:run-shell-command
#:system-definition-pathname #:find-component ; miscellaneous
#:operation ; operations
#:feature ; sort-of operation
#:version ; metaphorically sort-of an operation
#:input-files #:output-files #:perform ; operation methods
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#:operation-done-p #:explain
#:component #:source-file
#:c-source-file #:cl-source-file #:java-source-file
#:static-file
#:doc-file
#:html-file
#:text-file
#:source-file-type
#:module ; components
#:system
#:unix-dso
#:module-components ; component accessors
#:component-pathname
#:component-relative-pathname
#:component-name
#:component-version
#:component-parent
#:component-property
#:component-system
#:component-depends-on
#:system-description
#:system-long-description
#:system-author
#:system-maintainer
#:system-license
#:system-licence
#:system-source-file
#:system-relative-pathname
#:operation-on-warnings
#:operation-on-failure
;#:*component-parent-pathname*
#:*system-definition-search-functions*
#:*central-registry* ; variables
#:*compile-file-warnings-behaviour*
#:*compile-file-failure-behaviour*
#:*asdf-revision*
#:operation-error #:compile-failed #:compile-warned #:compile-error
#:error-component #:error-operation
#:system-definition-error
#:missing-component
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#:missing-component-of-version
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#:missing-dependency-of-version
#:circular-dependency ; errors
#:duplicate-names
#:try-recompiling
#:standard-asdf-method-combination
#:around ; protocol assistants
)
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(error "The author of this file habitually uses #+nil to comment out ~
forms. But don't worry, it was unlikely to work in the New ~
Implementation of Lisp anyway")
(defvar *asdf-revision*
(let* ((v "$Format:%d$")
(to-find "tags/")
(tags (or (search to-find v :test #'char=) -1)))
(when (and v tags)
(let ((dot (position #\. v :start tags)))
(when dot
(list (parse-integer v :start (+ tags (length to-find))
:junk-allowed t)
(parse-integer v :start (1+ dot)
:junk-allowed t)))))))
(defvar *compile-file-warnings-behaviour* :warn)
(defvar *compile-file-failure-behaviour* #+sbcl :error #-sbcl :warn)
(defvar *verbose-out* nil)

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(defparameter +asdf-methods+
'(perform explain output-files operation-done-p))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; utility stuff
(defmacro aif (test then &optional else)
`(let ((it ,test)) (if it ,then ,else)))
(defun pathname-sans-name+type (pathname)
"Returns a new pathname with same HOST, DEVICE, DIRECTORY as PATHNAME,
and NIL NAME and TYPE components"
(make-pathname :name nil :type nil :defaults pathname))
(define-modify-macro appendf (&rest args)
append "Append onto list")
(define-condition system-definition-error (error) ()
;; [this use of :report should be redundant, but unfortunately it's not.
;; cmucl's lisp::output-instance prefers the kernel:slot-class-print-function
;; over print-object; this is always conditions::%print-condition for
;; condition objects, which in turn does inheritance of :report options at
;; run-time. fortunately, inheritance means we only need this kludge here in
;; order to fix all conditions that build on it. -- rgr, 28-Jul-02.]
#+cmu (:report print-object))
(define-condition formatted-system-definition-error (system-definition-error)
((format-control :initarg :format-control :reader format-control)
(format-arguments :initarg :format-arguments :reader format-arguments))
(:report (lambda (c s)
(apply #'format s (format-control c) (format-arguments c)))))
(define-condition circular-dependency (system-definition-error)

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((components :initarg :components :reader circular-dependency-components)))
(define-condition duplicate-names (system-definition-error)
((name :initarg :name :reader duplicate-names-name)))
(define-condition missing-component (system-definition-error)
((requires :initform "(unnamed)" :reader missing-requires :initarg :requires)
(parent :initform nil :reader missing-parent :initarg :parent)))
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(define-condition missing-component-of-version (missing-component)
((version :initform nil :reader missing-version :initarg :version)))
(define-condition missing-dependency (missing-component)
((required-by :initarg :required-by :reader missing-required-by)))
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(define-condition missing-dependency-of-version (missing-dependency
missing-component-of-version)
())
(define-condition operation-error (error)
((component :reader error-component :initarg :component)
(operation :reader error-operation :initarg :operation))
(:report (lambda (c s)
(format s "~@<erred while invoking ~A on ~A~@:>"
(error-operation c) (error-component c)))))
(define-condition compile-error (operation-error) ())
(define-condition compile-failed (compile-error) ())
(define-condition compile-warned (compile-error) ())
((name :accessor component-name :initarg :name :documentation
"Component name: designator for a string composed of portable pathname characters")
(version :accessor component-version :initarg :version)
(in-order-to :initform nil :initarg :in-order-to)

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(do-first :initform nil :initarg :do-first)
;; methods defined using the "inline" style inside a defsystem form:
;; need to store them somewhere so we can delete them when the system
;; is re-evaluated
(inline-methods :accessor component-inline-methods :initform nil)
(parent :initarg :parent :initform nil :reader component-parent)
;; no direct accessor for pathname, we do this as a method to allow
;; it to default in funky ways if not supplied
;; XXX we should provide some atomic interface for updating the
;; component properties

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(properties :accessor component-properties :initarg :properties
;;;; methods: conditions
(defmethod print-object ((c missing-dependency) s)
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(format s "~@<~A, required by ~A~@:>"
(call-next-method c nil) (missing-required-by c)))
(defun sysdef-error (format &rest arguments)
(error 'formatted-system-definition-error :format-control format :format-arguments arguments))
;;;; methods: components
(defmethod print-object ((c missing-component) s)
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(format s "~@<component ~S not found~
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~@[ in ~A~]~@:>"
(missing-requires c)
(when (missing-parent c)
(component-name (missing-parent c)))))
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(defmethod print-object ((c missing-component-of-version) s)
(format s "~@<component ~S does not match version ~A~
~@[ in ~A~]~@:>"
(missing-requires c)
(missing-version c)
(when (missing-parent c)
(component-name (missing-parent c)))))
(defgeneric component-system (component)
(:documentation "Find the top-level system containing COMPONENT"))
(defmethod component-system ((component component))
(aif (component-parent component)
(component-system it)
component))
(defmethod print-object ((c component) stream)
(print-unreadable-object (c stream :type t :identity t)
((components :initform nil :accessor module-components :initarg :components)
;; what to do if we can't satisfy a dependency of one of this module's
;; components. This allows a limited form of conditional processing
(if-component-dep-fails :initform :fail
:accessor module-if-component-dep-fails
:initarg :if-component-dep-fails)
(default-component-class :accessor module-default-component-class
:initform 'cl-source-file :initarg :default-component-class)))
(defgeneric component-pathname (component)
(:documentation "Extracts the pathname applicable for a particular component."))
(defun component-parent-pathname (component)
(aif (component-parent component)
(component-pathname it)
*default-pathname-defaults*))
(defgeneric component-relative-pathname (component)
(:documentation "Extracts the relative pathname applicable for a particular component."))
(defmethod component-relative-pathname ((component module))
(or (slot-value component 'relative-pathname)
(make-pathname
:directory `(:relative ,(component-name component))
:host (pathname-host (component-parent-pathname component)))))
(defmethod component-pathname ((component component))
(let ((*default-pathname-defaults* (component-parent-pathname component)))
(merge-pathnames (component-relative-pathname component))))
(defgeneric component-property (component property))

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(defmethod component-property ((c component) property)
(cdr (assoc property (slot-value c 'properties) :test #'equal)))

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(defgeneric (setf component-property) (new-value component property))

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(defmethod (setf component-property) (new-value (c component) property)
(let ((a (assoc property (slot-value c 'properties) :test #'equal)))

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(if a
(setf (cdr a) new-value)
(setf (slot-value c 'properties)
(acons property new-value (slot-value c 'properties))))))

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(defclass system (module)
((description :accessor system-description :initarg :description)
(long-description
:accessor system-long-description :initarg :long-description)
(author :accessor system-author :initarg :author)
(maintainer :accessor system-maintainer :initarg :maintainer)
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(licence :accessor system-licence :initarg :licence
:accessor system-license :initarg :license)))
;;; version-satisfies
;;; with apologies to christophe rhodes ...
(defun split (string &optional max (ws '(#\Space #\Tab)))
(flet ((is-ws (char) (find char ws)))
(nreverse
(let ((list nil) (start 0) (words 0) end)
(loop
(when (and max (>= words (1- max)))
(return (cons (subseq string start) list)))
(setf end (position-if #'is-ws string :start start))
(push (subseq string start end) list)
(incf words)
(unless end (return list))
(setf start (1+ end)))))))
(defgeneric version-satisfies (component version))
(defmethod version-satisfies ((c component) version)
(unless (and version (slot-boundp c 'version))
(return-from version-satisfies t))
(let ((x (mapcar #'parse-integer
(split (component-version c) nil '(#\.))))
(y (mapcar #'parse-integer
(split version nil '(#\.)))))
(cond ((not y) t)
((not x) nil)
((> (car x) (car y)) t)
((= (car x) (car y))
(bigger (cdr x) (cdr y))))))
(or (not (cdr y)) (bigger (cdr x) (cdr y)))))))
(defun make-defined-systems-table ()
(make-hash-table :test 'equal))
(defvar *defined-systems* (make-defined-systems-table))
(typecase name
(component (component-name name))
(symbol (string-downcase (symbol-name name)))
(string name)
(t (sysdef-error "~@<invalid component designator ~A~@:>" name))))
;;; for the sake of keeping things reasonably neat, we adopt a
;;; convention that functions in this list are prefixed SYSDEF-
(defvar *system-definition-search-functions*
'(sysdef-central-registry-search))
(defun system-definition-pathname (system)
(let ((system-name (coerce-name system)))
(or
(some (lambda (x) (funcall x system-name))
*system-definition-search-functions*)
(let ((system-pair (system-registered-p system-name)))
(and system-pair
(system-source-file (cdr system-pair)))))))
(defvar *central-registry*
'(*default-pathname-defaults*
#+nil "/home/dan/src/sourceforge/cclan/asdf/systems/"
#+nil "telent:asdf;systems;"))
(defun sysdef-central-registry-search (system)
(let ((name (coerce-name system)))
(block nil
(dolist (dir *central-registry*)
(let* ((defaults (eval dir))
(file (and defaults
(make-pathname
:defaults defaults :version :newest
:name name :type "asd" :case :local))))
(if (and file (probe-file file))
(return file)))))))
(defun make-temporary-package ()
(flet ((try (counter)
(ignore-errors
(make-package (format nil "ASDF~D" counter)
:use '(:cl :asdf)))))
(do* ((counter 0 (+ counter 1))
(package (try counter) (try counter)))
(package package))))
(defun find-system (name &optional (error-p t))
(let* ((name (coerce-name name))
(in-memory (system-registered-p name))
(on-disk (system-definition-pathname name)))
(or (not in-memory)
(< (car in-memory) (file-write-date on-disk))))
(let ((package (make-temporary-package)))
(unwind-protect
(let ((*package* package))
*verbose-out*
"~&~@<; ~@;loading system definition from ~A into ~A~@:>~%"
;; FIXME: This wants to be (ENOUGH-NAMESTRING
;; ON-DISK), but CMUCL barfs on that.
(let ((in-memory (system-registered-p name)))
(progn (if on-disk (setf (car in-memory) (file-write-date on-disk)))
(cdr in-memory))
(if error-p (error 'missing-component :requires name))))))
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(format *verbose-out* "~&~@<; ~@;registering ~A as ~A~@:>~%" system name)
(setf (gethash (coerce-name name) *defined-systems*)
(defun system-registered-p (name)
(gethash (coerce-name name) *defined-systems*))
(defgeneric find-component (module name &optional version)
(:documentation "Finds the component with name NAME present in the
MODULE module; if MODULE is nil, then the component is assumed to be a
system."))
(defmethod find-component ((module module) name &optional version)
(let ((m (find name (module-components module)
:test #'equal :key #'component-name)))
(if (and m (version-satisfies m version)) m))))
(defmethod find-component ((module (eql nil)) name &optional version)
(if (and m (version-satisfies m version)) m)))
(defclass source-file (component) ())
(defclass cl-source-file (source-file) ())
(defclass c-source-file (source-file) ())
(defclass java-source-file (source-file) ())
(defclass static-file (source-file) ())
(defclass doc-file (static-file) ())
(defclass html-file (doc-file) ())
(defgeneric source-file-type (component system))
(defmethod source-file-type ((c cl-source-file) (s module)) "lisp")
(defmethod source-file-type ((c c-source-file) (s module)) "c")
(defmethod source-file-type ((c java-source-file) (s module)) "java")
(defmethod source-file-type ((c static-file) (s module)) nil)
(defmethod component-relative-pathname ((component source-file))
(let ((relative-pathname (slot-value component 'relative-pathname)))
(if relative-pathname
relative-pathname
:type (source-file-type component (component-system component))))
(component-parent-pathname component))
(name-type
(make-pathname
:name (component-name component)
:type (source-file-type component
(component-system component)))))
name-type))))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; operations
;;; one of these is instantiated whenever (operate ) is called
(defclass operation ()
((forced :initform nil :initarg :force :accessor operation-forced)
(original-initargs :initform nil :initarg :original-initargs
(visited-nodes :initform nil :accessor operation-visited-nodes)
(visiting-nodes :initform nil :accessor operation-visiting-nodes)
(parent :initform nil :initarg :parent :accessor operation-parent)))
(defmethod print-object ((o operation) stream)
(print-unreadable-object (o stream :type t :identity t)
(ignore-errors
(prin1 (operation-original-initargs o) stream))))
(defmethod shared-initialize :after ((operation operation) slot-names
(declare (ignore slot-names force))
;; empty method to disable initarg validity checking
)
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(define-method-combination standard-asdf-method-combination ()
((around-asdf (around))
(around (:around))
(before (:before))
(primary () :required t)
(after (:after)))
(flet ((call-methods (methods)
(mapcar #'(lambda (method)
`(call-method ,method))
methods)))
(let* ((form (if (or before after (rest primary))
`(multiple-value-prog1
(progn ,@(call-methods before)
(call-method ,(first primary)
,(rest primary)))
,@(call-methods (reverse after)))
`(call-method ,(first primary))))
(standard-form (if around
`(call-method ,(first around)
(,@(rest around)
(make-method ,form)))
form)))
(if around-asdf
`(call-method ,(first around-asdf)
(,@(rest around-asdf) (make-method ,standard-form)))
standard-form))))
(defgeneric perform (operation component)
(:method-combination standard-asdf-method-combination))
(defgeneric operation-done-p (operation component)
(:method-combination standard-asdf-method-combination))
(defgeneric explain (operation component)
(:method-combination standard-asdf-method-combination))
(defgeneric output-files (operation component)
(:method-combination standard-asdf-method-combination))
(defgeneric input-files (operation component)
(:method-combination standard-asdf-method-combination))
(defun node-for (o c)
(cons (class-name (class-of o)) c))
"Recursively chase the operation's parent pointer until we get to
the head of the tree"))
(defmethod operation-ancestor ((operation operation))
(aif (operation-parent operation)
(operation-ancestor it)
operation))
(defun make-sub-operation (c o dep-c dep-o)
(let* ((args (copy-list (operation-original-initargs o)))
;; note explicit comparison with T: any other non-NIL force value
;; (e.g. :recursive) will pass through
(cond ((and (null (component-parent c))
(null (component-parent dep-c))
(not (eql c dep-c)))
(when (eql force-p t)
(setf (getf args :force) nil))
(apply #'make-instance dep-o
:parent o
:original-initargs args args))
((subtypep (type-of o) dep-o)
o)
(t
(apply #'make-instance dep-o
:parent o :original-initargs args args)))))
(defmethod visit-component ((o operation) (c component) data)
(unless (component-visited-p o c)
(push (cons (node-for o c) data)
(operation-visited-nodes (operation-ancestor o)))))
(defmethod component-visited-p ((o operation) (c component))
(operation-visited-nodes (operation-ancestor o))
:test 'equal))
(defgeneric (setf visiting-component) (new-value operation component))
(defmethod (setf visiting-component) (new-value operation component)
;; MCL complains about unused lexical variables
(declare (ignorable new-value operation component)))
(defmethod (setf visiting-component) (new-value (o operation) (c component))
(let ((node (node-for o c))
(if new-value
(pushnew node (operation-visiting-nodes a) :test 'equal)
(setf (operation-visiting-nodes a)
(remove node (operation-visiting-nodes a) :test 'equal)))))
(defgeneric component-visiting-p (operation component))
(defmethod component-visiting-p ((o operation) (c component))
(let ((node (node-for o c)))
(member node (operation-visiting-nodes (operation-ancestor o))
(defgeneric component-depends-on (operation component)
(:documentation
"Returns a list of dependencies needed by the component to perform
the operation. A dependency has one of the following forms:
(<operation> <component>*), where <operation> is a class
designator and each <component> is a component
designator, which means that the component depends on
<operation> having been performed on each <component>; or
(FEATURE <feature>), which means that the component depends
on <feature>'s presence in *FEATURES*.
Methods specialized on subclasses of existing component types
should usually append the results of CALL-NEXT-METHOD to the
list."))
(defmethod component-depends-on ((op-spec symbol) (c component))
(component-depends-on (make-instance op-spec) c))
(defmethod component-depends-on ((o operation) (c component))
(cdr (assoc (class-name (class-of o))
(defgeneric component-self-dependencies (operation component))
(defmethod component-self-dependencies ((o operation) (c component))
(let ((all-deps (component-depends-on o c)))
(remove-if-not (lambda (x)
(member (component-name c) (cdr x) :test #'string=))
all-deps)))
(defmethod input-files ((operation operation) (c component))
(let ((parent (component-parent c))
(self-deps (component-self-dependencies operation c)))
(mapcan (lambda (dep)
(destructuring-bind (op name) dep
(output-files (make-instance op)
(find-component parent name))))
self-deps)
;; no previous operations needed? I guess we work with the
;; original source file, then
(list (component-pathname c)))))
(defmethod input-files ((operation operation) (c module)) nil)

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(flet ((fwd-or-return-t (file)
;; if FILE-WRITE-DATE returns NIL, it's possible that the
;; user or some other agent has deleted an input file. If
;; that's the case, well, that's not good, but as long as
;; the operation is otherwise considered to be done we
;; could continue and survive.
(let ((date (file-write-date file)))
(cond
(date)
(warn "~@<Missing FILE-WRITE-DATE for ~S: treating ~
operation ~S on component ~S as done.~@:>"
file o c)
(return-from operation-done-p t))))))
(let ((out-files (output-files o c))
(in-files (input-files o c)))
(cond ((and (not in-files) (not out-files))
;; arbitrary decision: an operation that uses nothing to
;; produce nothing probably isn't doing much
t)
(let ((op-done
(gethash (type-of o)
(component-operation-times c))))
(and op-done
(>= op-done
(apply #'max
(mapcar #'fwd-or-return-t in-files))))))
((not in-files) nil)
(t
(and
(every #'probe-file out-files)
(> (apply #'min (mapcar #'file-write-date out-files))
(apply #'max (mapcar #'fwd-or-return-t in-files)))))))))
;;; So you look at this code and think "why isn't it a bunch of
;;; methods". And the answer is, because standard method combination
;;; runs :before methods most->least-specific, which is back to front
;;; for our purposes. And CLISP doesn't have non-standard method
;;; combinations, so let's keep it simple and aspire to portability
(defgeneric traverse (operation component))
(defmethod traverse ((operation operation) (c component))
(labels ((%do-one-dep (required-op required-c required-v)
(let* ((dep-c (or (find-component
(component-parent c)
;; XXX tacky. really we should build the
;; in-order-to slot with canonicalized
;; names instead of coercing this late
(coerce-name required-c) required-v)
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(if required-v
(error 'missing-dependency-of-version
:required-by c
:version required-v
:requires required-c)
(error 'missing-dependency
:required-by c
:requires required-c))))
(op (make-sub-operation c operation dep-c required-op)))
(traverse op dep-c)))
(do-one-dep (required-op required-c required-v)
(loop
(restart-case
(return (%do-one-dep required-op required-c required-v))
(retry ()
:report (lambda (s)
(format s "~@<Retry loading component ~S.~@:>"
required-c))
:test
(lambda (c)
#|
(print (list :c1 c (typep c 'missing-dependency)))
(when (typep c 'missing-dependency)
(print (list :c2 (missing-requires c) required-c
(equalp (missing-requires c)
required-c))))
|#
(and (typep c 'missing-dependency)
(equalp (missing-requires c)
required-c)))))))
(do-dep (op dep)
(cond ((eq op 'feature)
(or (member (car dep) *features*)
:requires (car dep))))
(cond ((string-equal
(symbol-name (first d))
"VERSION")
forced
(do-one-dep op (second d) (third d))))
((and (string-equal
(symbol-name (first d))
"FEATURE")
(find (second d) *features*
:test 'string-equal))
forced
(do-one-dep op (second d) (third d))))
(t
(error "Dependencies must be (:version <version>), (:feature <feature>), or a name"))))
(t
(appendf forced (do-one-dep op d nil)))))))))
(aif (component-visited-p operation c)
(return-from traverse
(if (cdr it) (list (cons 'pruned-op c)) nil)))
(error 'circular-dependency :components (list c)))
;; constituent bits
(let ((module-ops
(when (typep c 'module)
(let ((at-least-one nil)
(forced nil)
(error nil))
(loop for kid in (module-components c)
do (handler-case
(appendf forced (traverse operation kid ))
(missing-dependency (condition)
(if (eq (module-if-component-dep-fails c)
:fail)
(error condition))
(setf error condition))
(:no-error (c)
(declare (ignore c))
(setf at-least-one t))))
(when (and (eq (module-if-component-dep-fails c)
:try-next)
(not at-least-one))
(error error))
forced))))
;; now the thing itself
(when (or forced module-ops
(not (operation-done-p operation c))
(operation-ancestor operation))))
(and f (or (not (consp f))
(member (component-name
(operation-ancestor operation))
(mapcar #'coerce-name f)
:test #'string=)))))
(let ((do-first (cdr (assoc (class-name (class-of operation))
(slot-value c 'do-first)))))
(loop for (required-op . deps) in do-first
do (do-dep required-op deps)))
(setf forced (append (delete 'pruned-op forced :key #'car)
(delete 'pruned-op module-ops :key #'car)
(list (cons operation c)))))))
(setf (visiting-component operation c) nil))
(defmethod perform ((operation operation) (c source-file))
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"~@<required method PERFORM not implemented ~
for operation ~A, component ~A~@:>"
(class-of operation) (class-of c)))
(defmethod perform ((operation operation) (c module))
nil)
(defmethod explain ((operation operation) (component component))
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(format *verbose-out* "~&;;; ~A on ~A~%" operation component))
(defclass compile-op (operation)
((proclamations :initarg :proclamations :accessor compile-op-proclamations :initform nil)
:initform *compile-file-warnings-behaviour*)
:initform *compile-file-failure-behaviour*)))
(defmethod perform :before ((operation compile-op) (c source-file))
(map nil #'ensure-directories-exist (output-files operation c)))
(defmethod perform :after ((operation operation) (c component))
(setf (gethash (type-of operation) (component-operation-times c))
;;; perform is required to check output-files to find out where to put
;;; its answers, in case it has been overridden for site policy
(defmethod perform ((operation compile-op) (c cl-source-file))

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(let ((source-file (component-pathname c))
(output-file (car (output-files operation c))))
(compile-file source-file :output-file output-file)
(case (operation-on-warnings operation)
(:warn (warn
"~@<COMPILE-FILE warned while performing ~A on ~A.~@:>"
operation c))
(:error (error 'compile-warned :component c :operation operation))
(:ignore nil)))
(case (operation-on-failure operation)
(:warn (warn
"~@<COMPILE-FILE failed while performing ~A on ~A.~@:>"
operation c))
(:error (error 'compile-failed :component c :operation operation))
(:ignore nil)))
(unless output
(error 'compile-error :component c :operation operation)))))
(defmethod output-files ((operation compile-op) (c cl-source-file))
#-:broken-fasl-loader (list (compile-file-pathname (component-pathname c)))
#+:broken-fasl-loader (list (component-pathname c)))
(defmethod perform ((operation compile-op) (c static-file))
nil)
(defmethod output-files ((operation compile-op) (c static-file))
nil)
(defmethod input-files ((op compile-op) (c static-file))
nil)
(defclass basic-load-op (operation) ())
(defclass load-op (basic-load-op) ())
(defmethod perform ((o load-op) (c cl-source-file))
(defmethod perform around ((o load-op) (c cl-source-file))
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(let ((state :initial))
(loop until (or (eq state :success)
(eq state :failure)) do
(case state
(:recompiled
(setf state :failure)
(call-next-method)
(setf state :success))
(:failed-load
(setf state :recompiled)
(perform (make-instance 'asdf:compile-op) c))
(t
(try-recompiling "Recompile ~a and try loading it again"
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(component-name c))
(setf state :failed-load)
(call-next-method)
(setf state :success)))))))
(defmethod perform around ((o compile-op) (c cl-source-file))
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(let ((state :initial))
(loop until (or (eq state :success)
(eq state :failure)) do
(case state
(:recompiled
(setf state :failure)
(call-next-method)
(setf state :success))
(:failed-compile
(setf state :recompiled)
(perform (make-instance 'asdf:compile-op) c))
(t
(try-recompiling "Try recompiling ~a"
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(component-name c))
(setf state :failed-compile)
(call-next-method)
(setf state :success)))))))
(defmethod perform ((operation load-op) (c static-file))
nil)
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(defmethod operation-done-p ((operation load-op) (c static-file))
t)
(defmethod component-depends-on ((operation load-op) (c component))
(cons (list 'compile-op (component-name c))
(call-next-method)))
;;; load-source-op
(defclass load-source-op (basic-load-op) ())
(defmethod perform ((o load-source-op) (c cl-source-file))

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(let ((source (component-pathname c)))
(setf (component-property c 'last-loaded-as-source)
(and (load source)
(get-universal-time)))))
(defmethod perform ((operation load-source-op) (c static-file))
nil)
(defmethod output-files ((operation load-source-op) (c component))
nil)
;;; FIXME: we simply copy load-op's dependencies. this is Just Not Right.
(defmethod component-depends-on ((o load-source-op) (c component))
(let ((what-would-load-op-do (cdr (assoc 'load-op
(slot-value c 'in-order-to)))))
(mapcar (lambda (dep)
(if (eq (car dep) 'load-op)
(cons 'load-source-op (cdr dep))
dep))
what-would-load-op-do)))
(defmethod operation-done-p ((o load-source-op) (c source-file))
(if (or (not (component-property c 'last-loaded-as-source))
(> (file-write-date (component-pathname c))
(component-property c 'last-loaded-as-source)))