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plug-ins: make "filename" accessible to the loop of "with-files" macro. 

The filename of the current bash file being processed is a pretty useful
data to access in a script.
This commit is contained in:
Jehan 2016-05-30 19:20:50 +02:00
parent ce2e187b08
commit 4d23939c3d
1 changed files with 19 additions and 13 deletions
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30
plug-ins/script-fu/scripts/script-fu-util.scm
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@ -49,20 +49,26 @@
; gimp -i -b '(with-files "*.png" <body>)'
;
; where <body> is the code that handles whatever processing you want to
; perform on the files. There are three variables that are available within
; the <body>: 'basename', 'image', and 'layer'. The 'basename' is the
; name of the file with its extension removed, while the other two
; variables are self-explanatory. You basically write your code as though
; it were processing a single 'image' and the 'with-files' macro applies
; it to all of the files matching the pattern.
; perform on the files. There are four variables that are available
; within the <body>: 'basename', 'image', 'filename' and 'layer'.
; The 'basename' is the name of the file with its extension removed,
; while the other three variables are self-explanatory.
; You basically write your code as though it were processing a single
; 'image' and the 'with-files' macro applies it to all of the files
; matching the pattern.
;
; For example, to invert the colors of all of the PNG files in the
; start directory:
;
; gimp -i -b '(with-files "*.png" (gimp-invert layer) \
; (gimp-file-save 1 image layer filename filename ))'
;
; To do the same thing, but saving them as jpeg instead:
;
; gimp -i -b '(with-files "*.png" (gimp-invert layer) \
; (gimp-file-save 1 image layer \
; (string-append basename ".png") \
; (string-append basename ".png") ))'
; (string-append basename ".jpg") \
; (string-append basename ".jpg") ))'
(define-macro (with-files pattern . body)
(let ((loop (gensym))
@ -71,12 +77,12 @@
`(begin
(let ,loop ((,filenames (cadr (file-glob ,pattern 1))))
(unless (null? ,filenames)
(let* ((,filename (car ,filenames))
(let* ((filename (car ,filenames))
(image (catch #f (car (gimp-file-load RUN-NONINTERACTIVE
,filename
,filename ))))
filename
filename ))))
(layer (if image (car (gimp-image-get-active-layer image)) #f))
(basename (unbreakupstr (butlast (strbreakup ,filename ".")) ".")))
(basename (unbreakupstr (butlast (strbreakup filename ".")) ".")))
(when image
,@body
(gimp-image-delete image)))