Enable auto-generation of linklist.md

Signed-off-by: David A. Wheeler <[email protected]>

make_linklist

@@ -0,0 +1,12 @@
+#!/bin/sh
+
+url='https://github.com/ossf/secure-sw-dev-fundamentals/blob/main/secure_software_development_fundamentals.md'
+while read line; do
+  case "$line" in
+    \#*)
+      name=$(printf '%s\n' "$line" | sed -e 's/^#* //')
+      link=$(printf '%s\n' "$name" | tr -dc 'A-Za-z0-9 -' | tr 'A-Z ' 'a-z-')
+      printf '%s\n' "[${name}](${url}#${link})"
+    ;;
+  esac
+done

makefile

@@ -10,6 +10,9 @@ toc.md: secure_software_development_fundamentals.md tocignore
 	grep -E '^#{1,3} ' secure_software_development_fundamentals.md | \
 	  grep -E -v -f tocignore | while read line; do echo "$$line"; echo; done > toc.md
 
+linklist.md: toc.md make_linklist
+	./make_linklist < toc.md > linklist.md
+
 # This requires wkhtmltopdf because it goes via HTML
 # https://plaintextproject.online/articles/2022/04/06/pdf.html
 # https://stackoverflow.com/questions/38455078/specifying-papersize-for-md-to-pdf-conversion
@@ -18,4 +21,4 @@ toc.md: secure_software_development_fundamentals.md tocignore
 book.pdf: secure_software_development_fundamentals.md
 	pandoc -f gfm --pdf-engine=wkhtmltopdf \
 		--css=print.css -V geometry:a4paper -o book.pdf \
-	  secure_software_development_fundamentals.md
+	  secure_software_development_fundamentals.md