X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=scm%2Fbackend-library.scm;h=0785386f45c9daa47b7baa71e4c36bc70d847f17;hb=5b4b0d6e9a197e8f9eb085b7c2ad78b8be3e5cfc;hp=a008fd28dd57816b38cfe68133eaf627a1a68cc4;hpb=e43ea6a8e015ce281d0213490ba8ef52319e9ed5;p=lilypond.git diff --git a/scm/backend-library.scm b/scm/backend-library.scm index a008fd28dd..0785386f45 100644 --- a/scm/backend-library.scm +++ b/scm/backend-library.scm @@ -2,22 +2,27 @@ ;;;; ;;;; source file of the GNU LilyPond music typesetter ;;;; -;;;; (c) 2005 Jan Nieuwenhuizen -;;;; Han-Wen Nienhuys +;;;; (c) 2005--2008 Jan Nieuwenhuizen +;;;; Han-Wen Nienhuys ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; backend helpers. -(define-public (ly:system command) +(define-public (ly:system command . rest) (let* ((status 0) - (silenced - (string-append command (if (ly:get-option 'verbose) - "" - " > /dev/null 2>&1 ")))) + (dev-null "/dev/null") + (silenced (if (or (ly:get-option 'verbose) + (not (access? dev-null W_OK))) + command + (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) @@ -25,68 +30,133 @@ ;; 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" + (string-append "\"" - (regexp-substitute/global #f "[^- 0-9,.a-zA-Z'\"\\]" str 'pre 'post) + (regexp-substitute/global #f "[^-_ 0-9,.a-zA-Z'\"\\]" str 'pre 'post) "\"")) -(define-public (postscript->pdf papersizename name) - (let* ((cmd (format #f "ps2pdf -sPAPERSIZE=~a '~a'" - (sanitize-command-option papersizename) name)) - (pdf-name (string-append (basename name ".ps") ".pdf" ))) - - (if (access? pdf-name W_OK) - (delete-file pdf-name)) +(define-public (search-executable names) + (define (helper path lst) + (if (null? (cdr lst)) + (car lst) + (if (search-path path (car lst)) (car lst) + (helper path (cdr lst))))) + + (let ((path (parse-path (getenv "PATH")))) + (helper path names))) + +(define-public (search-gs) + + ;; must be sure that we don't catch stuff from old GUBs. + (search-executable '("gs"))) + +(define-public (postscript->pdf paper-width paper-height name) + (let* ((pdf-name (string-append + (dir-basename name ".ps" ".eps") + ".pdf")) + (is-eps (string-match "\\.eps$" name)) + (paper-size-string (if is-eps + " -dEPSCrop " + (ly:format "-dDEVICEWIDTHPOINTS=~$ \ +-dDEVICEHEIGHTPOINTS=~$ " + paper-width paper-height ))) + + (cmd (simple-format #f + "~a\ + ~a\ + ~a\ + ~a\ + -dCompatibilityLevel=1.4 \ + -dNOPAUSE\ + -dBATCH\ + -r1200 \ + -sDEVICE=pdfwrite\ + -sOutputFile=~S\ + -c .setpdfwrite\ + -f ~S\ +" + (search-gs) + (if (ly:get-option 'verbose) "" "-q") + (if (or (ly:get-option 'gs-load-fonts) + (ly:get-option 'gs-load-lily-fonts)) + + " -dNOSAFER " + " -dSAFER ") + paper-size-string + pdf-name + name))) + ;; The wrapper on windows cannot handle `=' signs, + ;; gs has a workaround with #. + (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)))) (ly:message (_ "Converting to `~a'...") pdf-name) (ly:progress "\n") (ly:system cmd))) -(define-public (postscript->png resolution papersizename name) - (let* ((prefix (ly:effective-prefix)) - - ;; run the source, if we are in the build-directory - (ps2png-source (if prefix - (format "~a/scripts/lilypond-ps2png.py" prefix) - "lilypond-ps2png")) - (cmd (format #f - "~a --resolution=~S --papersize=~a~a '~a'" - (if (file-exists? ps2png-source) - (format "python ~a" ps2png-source) - "lilypond-ps2png") - resolution - (sanitize-command-option papersizename) - (if (ly:get-option 'verbose) " --verbose " "") - name))) +(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" ))) (ly:message (_ "Converting to ~a...") "PNG") - (ly:system cmd) + (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) - (for-each - (lambda (f) - ((eval (string->symbol (string-append "convert-to-" f)) module) - paper-book 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) + (if (ly:get-option 'delete-intermediate-files) + (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) @@ -98,7 +168,10 @@ (if (equal? "-" file-name) "" 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") "")