X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=scm%2Fbackend-library.scm;h=0785386f45c9daa47b7baa71e4c36bc70d847f17;hb=5b4b0d6e9a197e8f9eb085b7c2ad78b8be3e5cfc;hp=aa432017db6301e658dd77d65822f229333d6a8b;hpb=7eaeba29769613cb105e71ac40a71746d1601d90;p=lilypond.git

diff --git a/scm/backend-library.scm b/scm/backend-library.scm
index aa432017db..0785386f45 100644
--- a/scm/backend-library.scm
+++ b/scm/backend-library.scm
@@ -2,13 +2,13 @@
 ;;;;
 ;;;;  source file of the GNU LilyPond music typesetter
 ;;;; 
-;;;; (c) 2005--2006 Jan Nieuwenhuizen <janneke@gnu.org>
+;;;; (c) 2005--2008 Jan Nieuwenhuizen <janneke@gnu.org>
 ;;;; Han-Wen Nienhuys <hanwen@xs4all.nl>
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 
 ;; backend helpers.
 
-(define-public (ly:system command)
+(define-public (ly:system command . rest)
   (let* ((status 0)
 	 (dev-null "/dev/null")
 	 (silenced (if (or (ly:get-option 'verbose)
@@ -17,8 +17,12 @@
 		       (format #f "~a > ~a 2>&1 " command dev-null))))
     (if (ly:get-option 'verbose)
 	(ly:message (_ "Invoking `~a'...") command))
-    
-    (set! status (system silenced))
+
+    (set! status
+	  (if (pair? rest)
+	      (system-with-env silenced (car rest))
+	      (system silenced)))
+	
     (if (> status 0)
 	(begin
 	  (ly:message (_ "`~a' failed (~a)") command status)
@@ -26,6 +30,22 @@
 	  ;; hmmm.  what's the best failure option? 
 	  (throw 'ly-file-failed)))))
 
+(define-public (system-with-env cmd env)
+
+  "Execute CMD in fork, with ENV (a list of strings) as the environment"
+  (let*
+      ;; laziness: should use execle?
+      
+      ((pid (primitive-fork)))
+    (if (= 0 pid)
+	;; child
+	(begin
+	  (environ env)
+	  (system cmd))
+	
+	;; parent
+	(cdr (waitpid pid)))))
+
 (define-public (sanitize-command-option str)
   "Kill dubious shell quoting"
   
@@ -51,16 +71,16 @@
   
 (define-public (postscript->pdf paper-width paper-height name)
   (let* ((pdf-name (string-append
-		    (basename (basename name ".ps") ".eps")
+		    (dir-basename name ".ps" ".eps")
 		    ".pdf"))
 	 (is-eps (string-match "\\.eps$" name))
 	 (paper-size-string (if is-eps
 				" -dEPSCrop "
-				(format "-dDEVICEWIDTHPOINTS=~,2f \
--dDEVICEHEIGHTPOINTS=~,2f "
+				(ly:format "-dDEVICEWIDTHPOINTS=~$ \
+-dDEVICEHEIGHTPOINTS=~$ "
 					paper-width paper-height )))
 
-	 (cmd (format #f
+	 (cmd (simple-format #f
 		      "~a\
  ~a\
  ~a\
@@ -76,7 +96,9 @@
 "
 		      (search-gs)
 		      (if (ly:get-option 'verbose) "" "-q")
-		      (if (ly:get-option 'gs-load-fonts)
+		      (if (or (ly:get-option 'gs-load-fonts)
+			      (ly:get-option 'gs-load-lily-fonts))
+			      
 			  " -dNOSAFER "
 			  " -dSAFER ")
 		      paper-size-string
@@ -87,66 +109,54 @@
     (if (eq? PLATFORM 'windows)
 	(begin
 	  (set! cmd (string-regexp-substitute "=" "#" cmd))
-	  (set! cmd (string-regexp-substitute "-dSAFER " "" cmd))))
-
-    (if (access? pdf-name W_OK)
-	(delete-file pdf-name))
+	  (set! cmd (string-regexp-substitute "-dSAFER " "" cmd))
+	  (if (access? pdf-name W_OK)
+	      (delete-file pdf-name))))
 
     (ly:message (_ "Converting to `~a'...") pdf-name)
     (ly:progress "\n")
-    (ly:system cmd)
-    ))
+    (ly:system cmd)))
 
 (use-modules (scm ps-to-png))
 
 (define-public (postscript->png resolution paper-width paper-height name)
+  (let* ((verbose (ly:get-option 'verbose))
+	 (rename-page-1 #f))
+
     ;; Do not try to guess the name of the png file,
     ;; GS produces PNG files like BASE-page%d.png.
-    ;;(ly:message (_ "Converting to `~a'...")
-    ;;	    (string-append (basename name ".ps") "-page1.png" )))
-  (let ((verbose (ly:get-option 'verbose))
-	(rename-page-1 #f))
-
     (ly:message (_ "Converting to ~a...") "PNG")
-    (make-ps-images name resolution paper-width paper-height rename-page-1 verbose
-		    (ly:get-option 'anti-alias-factor))
+    (make-ps-images name
+		    #:resolution resolution
+		    #:page-width paper-width
+		    #:page-height paper-height
+		    #:rename-page-1 rename-page-1
+		    #:be-verbose verbose
+		    #:anti-alias-factor (ly:get-option 'anti-alias-factor)
+		    #:pixmap-format (ly:get-option 'pixmap-format))
     (ly:progress "\n")))
 
 (define-public (postprocess-output paper-book module filename formats)
-  (let*
-      ((completed (completize-formats formats))
-       (base (string-regexp-substitute "\\.[a-z]+$" "" filename))
-       (intermediate (remove
-		      (lambda (x)
-			(member x formats)) 
-		      completed)))
-
-    (for-each
-     (lambda (f)
-       ((eval (string->symbol (format "convert-to-~a" f)) module)
-	paper-book filename))
-     completed)
-
+  (let* ((completed (completize-formats formats))
+	 (base (string-regexp-substitute "\\.[a-z]+$" "" filename))
+	 (intermediate (remove (lambda (x) (member x formats)) completed)))
+    
+    (for-each (lambda (f)
+		((eval (string->symbol (format "convert-to-~a" f))
+		       module) paper-book filename)) completed)
     (if (ly:get-option 'delete-intermediate-files)
-	(for-each
-	 (lambda (f)
-	   (delete-file (string-append base "." f)))
-	 intermediate))
-    ))
+	(for-each (lambda (f)
+		    (delete-file (string-append base "." f))) intermediate))))
 
 (define-public (completize-formats formats)
   (define new-fmts '())
-
   (if (member "png" formats)
       (set! formats (cons "ps" formats)))
   (if (member "pdf" formats)
       (set! formats (cons "ps" formats)))
-
-  (for-each
-   (lambda (x)
-     (if (member x formats) (set! new-fmts (cons x new-fmts))))
-   '("tex" "dvi" "ps" "pdf" "png"))
-
+  (for-each (lambda (x)
+	      (if (member x formats) (set! new-fmts (cons x new-fmts))))
+	    '("tex" "dvi" "ps" "pdf" "png"))
   (uniq-list (reverse new-fmts)))
 
 (define (header-to-file file-name key value)
@@ -158,7 +168,10 @@
 	      (if (equal? "-" file-name) "<stdout>" file-name))
   (if (equal? file-name "-")
       (display value)
-      (display value (open-file file-name "w")))
+      (let ((port (open-file file-name "w")))
+	(display value port)
+	(close-port port)))
+
   (ly:progress "\n")
   "")