Hash :
b83f3814
Author :
Thomas de Grivel
Date :
2019-01-07T16:35:45
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181
;;
;; RoL-assets - Asset pipeline
;;
;; Copyright 2012-2015 Thomas de Grivel <thomas@lowh.net>
;;
;; Permission to use, copy, modify, and distribute this software for any
;; purpose with or without fee is hereby granted, provided that the above
;; copyright notice and this permission notice appear in all copies.
;;
;; THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
;; WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
;; MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
;; ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
;; WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
;; ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
;; OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
;;
;; FIXME: bug on renamed or deleted asset file still in cache
(in-package :RoL-assets)
;; Asset class
(defclass asset ()
((name :initarg :name
:reader asset-name
:type string)
(source-dir :initarg :source-dir
:accessor asset-source-dir
:type string)
(source-ext :initarg :source-ext
:reader asset-source-ext
:type extension)
(sources :type list)
(path :type string)
(source-path :type string)
(url :type string)
(digest :type (or null string)
:initform nil
:accessor asset-digest)))
(defgeneric asset-ext (asset))
(defgeneric asset-url (asset))
(defgeneric asset-path (asset))
(defgeneric asset-source-path (asset))
(defgeneric asset-include (output context asset &key &allow-other-keys))
(defgeneric asset-sources (asset))
(defgeneric asset-sources% (asset))
(defgeneric asset-write-date (asset))
(defgeneric compile-asset (asset output))
(defgeneric digest-asset (asset path))
;; Base implementation
(defmethod asset-ext ((asset asset))
(asset-source-ext asset))
(defmethod asset-digest ((asset asset))
(or (slot-value asset 'digest)
(let ((asset-path (expand-uri nil *assets-path-template*
:name (asset-name asset)
:ext (subseq (string-downcase (asset-ext asset))
1))))
(when-let ((link (readlink asset-path)))
(cl-ppcre:register-groups-bind (name digest ext)
("([^/]+)[.]([^./]+)([.][^./]+)$" link)
(when (and (string= name (asset-name asset))
(string-equal ext (asset-ext asset)))
(setf (asset-digest asset) digest)
(slot-makunbound asset 'url)
(slot-makunbound asset 'path)
digest))))))
(defmethod mime-type ((asset asset))
(mime-type (asset-ext asset)))
(defmethod asset-url ((asset asset))
(expand-uri nil *assets-url-template*
:name (asset-name asset)
:digest (asset-digest asset)
:ext (subseq (string-downcase (asset-ext asset))
1)))
(defmethod asset-path ((asset asset))
(expand-uri nil *assets-path-template*
:name (asset-name asset)
:digest (asset-digest asset)
:ext (subseq (string-downcase (asset-ext asset)) 1)))
(defmethod asset-source-path ((asset asset))
(if (slot-boundp asset 'source-path)
#1=(slot-value asset 'source-path)
(setf #1# (with-slots (name source-dir source-ext) asset
(str source-dir name
(string-downcase source-ext))))))
(defmethod print-object ((asset asset) stream)
(print-unreadable-object (asset stream :type t)
(ignore-errors (format stream "~S" (asset-path asset)))
(ignore-errors (format stream " ~S" (asset-source-path asset)))))
(defmethod asset-write-date ((assets cons))
(loop
for a in assets
for path = (asset-source-path a)
unless (probe-file path) do (return -1)
maximize (file-write-date path)))
(defmethod asset-sources% ((asset asset))
(list asset))
(defmethod asset-sources ((asset asset))
(flet ((miss ()
(let ((sources (asset-sources% asset)))
(setf (slot-value asset 'sources)
(cons (asset-write-date sources) sources))
sources)))
(if (slot-boundp asset 'sources)
(destructuring-bind (cached-date &rest cached-sources)
(slot-value asset 'sources)
(if (= cached-date (asset-write-date cached-sources))
cached-sources
(miss)))
(miss))))
(defmethod asset-write-date ((asset asset))
(asset-write-date (asset-sources asset)))
(defmethod compile-asset ((asset asset) (output stream))
(let ((path (asset-source-path asset)))
;;(msg "CP ~A" path)
(with-open-file (in path :element-type '(unsigned-byte 8))
(copy-stream in output)))
nil)
(defmethod compile-asset ((asset asset) (output pathname))
(ensure-directories-exist output)
(let ((path (asset-source-path asset)))
;;(msg "CP ~A" path)
(cl-fad:copy-file path output :overwrite t))
nil)
(defmethod asset-include ((output null)
context
asset
&rest args &key &allow-other-keys)
(with-output-to-string (stream)
(apply #'asset-include stream context asset args)))
;; Asset class -> extensions
(defgeneric asset-class-extensions (asset-class))
(defmethod asset-class-extensions ((any symbol))
nil)
(defmethod asset-class-extensions ((class class))
(asset-class-extensions (class-name class)))
(defmethod asset-class-extensions ((asset asset))
(asset-class-extensions (class-of asset)))
;; Extension -> asset classes
(defun extension-asset-classes (extension
&optional (class (find-class 'asset)))
(declare (type extension extension)
(type class class))
(when extension
(labels ((add (classes a)
(reduce #'add (closer-mop:class-direct-subclasses a)
:initial-value (cons a classes)))
(matching-class (a)
(if (find extension (asset-class-extensions a))
(add nil a)
(some #'matching-class
(closer-mop:class-direct-subclasses a)))))
(or (matching-class class)
`(,class)))))