improve comparison to previous HTML

.github/workflows/check-and-ebook.yml

@@ -125,19 +125,15 @@ jobs:
           ebook-convert --version
           python3 --version
 
-      - name: Download previous hpmor.html
-        run: |
-          wget --quiet https://github.com/${{ github.repository }}/releases/download/WorkInProgress/hpmor.html -O hpmor-prev.html
-
       - name: Make eBooks
         run: |
+          wget --quiet https://github.com/${{ github.repository }}/releases/download/WorkInProgress/hpmor.html -O hpmor-prev.html
           wget --quiet https://github.com/${{ github.repository }}/releases/download/WorkInProgress/hpmor.pdf -O hpmor.pdf
           sh scripts/make_ebooks.sh > /dev/null
 
-      - name: Compare to previous hpmor.html
+      - name: Compare HTML to previous version
         run: |
-          diff -u -s hpmor-prev.html hpmor.html > hpmor-html-diff.log || :
-          rm hpmor-prev.html
+          diff -U 0 -s hpmor-prev.html hpmor.html > hpmor-html-diff.log || :
 
       - name: ls after
         run: |

scripts/ebook/step_8.sh

@@ -0,0 +1,16 @@
+#!/bin/sh
+
+echo === 8. HTML comparison with latest release ===
+
+script_dir=$(dirname $0)
+cd $script_dir/../..
+
+source_file="hpmor.html"
+target_file="hpmor-html-diff.log"
+
+echo ==== 8.1 downloading from latest release ====
+wget --quiet https://github.com/entorb/hpmor-de/releases/download/WorkInProgress/hpmor.html -O hpmor-prev.html
+# or use latest release, like https://github.com/rrthomas/hpmor/releases/latest/download/hpmor.html
+
+echo ==== 8.2 diff ====
+diff -U 0 -s hpmor-prev.html $source_file >$target_file

scripts/make_ebooks.sh

@@ -14,6 +14,7 @@ python3 scripts/ebook/step_4.py
 sh scripts/ebook/step_5.sh
 python3 scripts/ebook/step_6.py
 sh scripts/ebook/step_7.sh
+echo optionally run scripts/ebook/step_8.sh to compare HTML to latest release
 
 # rm -rf hpmor-epub*.tex
 # rm -rf hpmor-epub*.html