chore: replace custom template with Eisvogel

Author: tongpu

Makefile

@@ -14,5 +14,9 @@ images: ## generate images using plantuml
 pdf: images ## generate PDF specification
 	mkdir -p generated-specs/pdf
 	envsubst < metadata.md > _metadata.md
-	pandoc --from markdown --data-dir=. --template rcm-dx --listings --toc --number-sections --metadata-file=_metadata.md RCM-DX-Specification_EN.md -o generated-specs/pdf/RCM-DX-Specification_EN.pdf
+ifeq ($(IS_DRAFT),true)
+	pandoc --from markdown --template eisvogel --listings --include-in-header templates/is_draft.latex --metadata-file=_metadata.md RCM-DX-Specification_EN.md -o generated-specs/pdf/RCM-DX-Specification_EN.pdf --pdf-engine tectonic
+else
+	pandoc --from markdown --template eisvogel --listings --metadata-file=_metadata.md RCM-DX-Specification_EN.md -o generated-specs/pdf/RCM-DX-Specification_EN.pdf --pdf-engine tectonic
+endif
 	rm _metadata.md

metadata.md

@@ -1,16 +1,24 @@
 ---
 title: "RCM-DX specification"
-lang: EN
+lang: en
 subtitle: "Document Version $SPEC_VERSION"
 keywords: [RCM-DX, Specification]
-logo: "logo/RCM-DX.png"
-logo-width: 100
+titlepage-logo: "logo/RCM-DX.png"
 secnumdepth: 5
 titlepage: true
 titlepage-rule-color: "EB0000"
-author: "Swiss federal railways SBB, Schweizerische Bundesbahnen SBB, Chemins de fer fédéraux suisses CFF, Ferrovie federali svizzere FFS"
+author:
+- "Swiss federal railways SBB"
+- "Schweizerische Bundesbahnen SBB"
+- "Chemins de fer fédéraux suisses CFF"
+- "Ferrovie federali svizzere FFS"
 numbersections: true
 colorlinks: true
+toc: true
 toc-own-page: true
+mainfont: SourceSansPro-Regular.otf
+monofont: SourceCodePro-Regular.otf
+table-use-row-colors: true
+footer-left: 'RCM-DX $SPEC_VERSION'
 draft: $IS_DRAFT
-...
+---

templates/is_draft.latex

@@ -0,0 +1,6 @@
+%%
+%% add draft watermark
+%%
+\usepackage{draftwatermark}
+\SetWatermarkText{DRAFT}
+\SetWatermarkScale{2}