[Dev-luatex] Feature request: busy pdf

Jérôme LAURENS jerome.laurens at u-bourgogne.fr
Thu Apr 7 12:10:13 CEST 2022


New CLI options --busy related to typesetting

luatex --busy=0
    default behavior, nothing new
luatex --busy=1
    Instead of writing the pdf output to jobname.pdf, write to jobname.pdf(busy)
    At the end remove any jobname.pdf and move jobname.pdf(busy) to jobname.pdf
luatex --busy=2 foo.tex
    If there is a jobname.pdf(busy) bail out with a diagnostic message « typesetting already in progress »
    Otherwise do like --busy=1

Actually, the pdf is removed at the start of the typesetting process such that it is no longer available during that whole time.
When the typesetting is a bit long, it is not practical at all. For continuous typesetting neither.
Considering that we work in general on the end of a document, the first  pages will not change a lot but are no longer available.

synctex already supports this « busy » busyness such that the previous .synctex file is available during next typesetting process.




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