scriptfu could says what values to be expected

[estatistics]

scriptfu could says what values to be expected instead of saying only
"Error: Invalid value for argument 1"
Moreover it can provide an example how to set the arguments in a variable.
eg. (file-webp-export  1 0 0 0 a.jpg b.jpg) can save a as b with these numberd arguments means ...  


How to export all my jpg images as webp using gimp in linux bash in batch?

gimp -i  -b '(let* ((image (car (gimp-file-load RUN-NONINTERACTIVE "DSC_0978.JPG"))))(file-webp-export RUN-NONINTERACTIVE image "DSC_0978.webp" lossless include-exif include-xmp))' --batch-interpreter="plug-in-script-fu-eval"

I cant understand what arguments must put in which positions. Script fu menu for file-webp-export has a lot! Whcih of these are essential and in what positions?

---

When using

Code:

gimp -i  -b '(let* ((image (car (gimp-file-load RUN-NONINTERACTIVE "DSC_0978.JPG"))))(file-webp-export RUN-NONINTERACTIVE image "DSC_0978.webp"))' --batch-interpreter="plug-in-script-fu-eval"

it says

Code:

(script-fu:457680): scriptfu-WARNING **: 14:16:06.586: Missing arg type: GimpExportOptions
(script-fu:457680): scriptfu-WARNING **: 14:16:06.586: Calling Plug-In PDB procedures with arguments as an ordered list is deprecated.
Please use named arguments: (file-webp-export #:run-mode 1 #:image 1 #:file DSC_0978.webp)
batch command executed successfully

but when using

Code:

gimp -i  -b '(let* ((image (car (gimp-file-load RUN-NONINTERACTIVE "DSC_0978.JPG"))))(file-webp-export run-mode "1" image "DSC_0978.webp" 100))' --batch-interpreter="plug-in-script-fu-eval"

it says

Code:

 batch command experienced an execution error:
Error: eval: unbound variable: run-mode
Stopping at failing batch command [0]: (let* ((image (car (gimp-file-load RUN-NONINTERACTIVE "DSC_0978.JPG"))))(file-webp-export run-mode "1" image "DSC_0978.webp" 100))