dash: use vector logo and minimize SVGs

Author: vszakats

dashmin.sh

@@ -0,0 +1,23 @@
+#!/bin/sh
+
+# Post-process gnuplot SVG output:
+# 1. replace bitmap logo with vector one (for smaller size and nicer look)
+# 2. losslessly compress it to minimize download size
+
+# load svg logo without svg element, drop indent and newlines
+symbol_logo_bare="$(sed -E -e 's|</?svg.*>||g' -e 's/^ +//g' < ../logo/curl-symbol.svg | tr -d $'\n')"
+
+# resize logo and move to center, set opacity
+logo_embed="$(printf \
+  '<g id="logo" opacity=".07" transform="matrix(0.564,0,0,0.564,672,274)">%s</g>' \
+  "${symbol_logo_bare}")"
+
+# replace image element generated by gnuplot svg export, with svg logo
+cat stats.list | while read -r f; do
+  # <image x='672.00' y='274.47' width='575.99' height='481.53' ...>
+  sed -i.bak -E "s|\<image.+\>|${logo_embed}|g" "$f"
+done
+rm ./*.svg.bak
+
+# compress losslessly
+svgo *.svg

updatedash.sh

@@ -30,6 +30,9 @@ git shortlog -s > tmp/git-shortlog.txt 2>&1
 # generate us a bunch of updated SVG files
 sh stats/mksvg.sh ..
 
+# post-process SVG
+../dashmin.sh
+
 # back to base
 cd $orgdir