her.esy.fun/optim-html.sh

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#!/usr/bin/env nix-shell
#!nix-shell -i zsh
#!nix-shell -I nixpkgs="https://github.com/NixOS/nixpkgs/archive/19.09.tar.gz"
webdir="_site"
debug () {
print -- $* >/dev/null
}
type -a filelist
setopt extendedglob
if (($#>0)); then
filelist=( $* )
else
filelist=( $webdir/**/*.html(.) )
fi
tmp=$(mktemp)
for fic in $filelist; do
if echo $fic|egrep -- '-(mk|min|sci|modern).html$'>/dev/null; then
continue
fi
print -n -- "$fic "
cp $fic $tmp
perl -pi -e 's#<div id="outline-container-[^"]*"([^>]*)>#<div$1>#g;s# id="org[a-f0-9]{7}"##g' $tmp
minify --mime text/html $tmp > $fic
print "[OK]"
done