On 2025-07-24 7:42 am, Mikael Jagan wrote:
Date: Thu, 24 Jul 2025 02:00:32 +0300
From: Ivan Krylov<ikry...@disroot.org>
В Wed, 23 Jul 2025 20:09:26 +0000
"Richard M. Heiberger"<r...@temple.edu> пишет:
When I use
R_QPDF=/Library/Frameworks/R.framework/Resources/bin/qpdf
R_GSCMD=/usr/local/bin/Cellar/ghostscript/10.03.0/bin/gs
GS_QUALITY=ebook
echo $R_QPDF $R_GSCMD $GS_QUALITY
R CMD build --compact-vignettes=both microplot
I get 558950 bytes
The bytecount for the package went up.
Unfortunately, this seems to be very dependent on versions of software
in use, including LaTeX and Ghostscript (and fonts?). I can compress
your pre-built 372Kb vignette to 96Kb (as does the CRAN machine), but
when I rebuild the package, I can only get down from 276Kb to 156Kb:
R -q -s -e '
untar("microplot_1.0-47.tar.gz.orig");
tools::compactPDF(
"microplot/inst/doc",
gs_cmd = "gs", gs_quality = "ebook",
verbose = TRUE
)
'
qs_quality="ebook" : use_gs=TRUE, use_qpdf=TRUE
#{pdf}s = length(paths) = 1
- microplot/inst/doc/rmhPoster.pdf: gs: res=0; + qpdf: res=0;
==> (new=98115)/(old=380862) = 0.257613 =====> using it !!
compacted ‘rmhPoster.pdf’ from 372Kb to 96Kb
LANGUAGE=en R_GSCMD=gs GS_QUALITY=ebook R CMD build \
--compact-vignettes=both microplot
<...>
* creating vignettes ... OK
<...>
* compacting vignettes and other PDF files
compacted ‘rmhPoster.pdf’ from 276Kb to 156Kb
And 'gs --version' says '10.00.0', which shouldn't be that different
from your '10.03.0'!
I build ghostscript from sources under macOS and upgrade the version
periodically. I encountered the same issue last year and stayed at
10.02 until they released 10.04, because there was a clear regression
in 10.03. I was never able to track down a relevant bug report, but
I never looked very hard ...
By the way, as mentioned in WRE, you can get ghostscript from a full MacTeX
rather than Homebrew. MacTex 2025 installs a binary ghostscript 10.04 under
/usr/local/bin.
Mikael
Mikael
-- Best regards, Ivan
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