From da2275674a1c8c6e13b3f198bd20f99cd4097e34 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=93lafur=20Sverrir=20Kjartansson?= <kjarni@gmail.com>
Date: Sun, 5 Jun 2022 11:07:08 +0000
Subject: [PATCH] =?UTF-8?q?feat:=20fyrsta=20=C3=BAtg=C3=A1fa=20af=20pdf=20?=
 =?UTF-8?q?=C3=BAtg=C3=A1fu?=
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Notar pandoc til að útbúa pdf, þurfti að

* Setja upp `librsvg` með brew fyrir svg myndir
* Búa til lua filter til að sleppa „myndum“ sem voru brotnar
* Setja upp `pdffiles.txt` til að tilgreina hvað eigi að lesa inn
---
 .gitignore         |  3 +++
 chapters/pdf.md    | 22 ++++++++++++++++++++++
 package.json       |  3 ++-
 pandoc-filters.lua | 12 ++++++++++++
 pdffiles.txt       | 25 +++++++++++++++++++++++++
 5 files changed, 64 insertions(+), 1 deletion(-)
 create mode 100644 chapters/pdf.md
 create mode 100644 pandoc-filters.lua
 create mode 100644 pdffiles.txt

diff --git a/.gitignore b/.gitignore
index 3a0fcab..3268cb9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,3 +16,6 @@ temp
 npm-debug.log*
 yarn-debug.log*
 yarn-error.log*
+
+# pdf output
+/pdf
diff --git a/chapters/pdf.md b/chapters/pdf.md
new file mode 100644
index 0000000..f29a77d
--- /dev/null
+++ b/chapters/pdf.md
@@ -0,0 +1,22 @@
+---
+title:  "Bókin um vefforritun"
+subtitle: "Lærðu að smíða vefi með HTML og CSS ✨"
+author: "Ólafur Sverrir Kjartansson"
+toc: true
+toc-title: Efnisyfirlit
+papersize: a4
+lang: is-IS
+geometry:
+- top=40mm
+- right=30mm
+- bottom=40mm
+- left=30mm
+header-includes:
+  # Wrappa kóðablokkir
+  - \DefineVerbatimEnvironment{Highlighting}{Verbatim}{breaklines,commandchars=\\\{\}}
+  - \usepackage{fvextra}
+  # Wrappa inline kóða
+  - \usepackage[htt]{hyphenat}
+  # Færa footnotes lengra frá efni
+  - \addtolength{\skip\footins}{2pc}
+---
diff --git a/package.json b/package.json
index 4a51b5a..6fe2d4b 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,8 @@
   "scripts": {
     "generate": "node src/generate.js",
     "clean": "rm -rf ./cache ./build",
-    "wordlist": "find ./chapters/*.md -type f | xargs grep --color=always -w -Ff ./wordlist.txt | awk '{print $0,\"\\n\"}'"
+    "wordlist": "find ./chapters/*.md -type f | xargs grep --color=always -w -Ff ./wordlist.txt | awk '{print $0,\"\\n\"}'",
+    "pdf": "pandoc -s ./chapters/pdf.md $(cat pdffiles.txt) -o ./pdf/bok.pdf --pdf-engine=xelatex --number-sections --resource-path=./chapters --lua-filter=./pandoc-filters.lua"
   },
   "repository": {
     "type": "git",
diff --git a/pandoc-filters.lua b/pandoc-filters.lua
new file mode 100644
index 0000000..8882555
--- /dev/null
+++ b/pandoc-filters.lua
@@ -0,0 +1,12 @@
+--[[
+Strip out images that are not local, some chapters use YouTube embeds that otherwise break while building
+See
+https://github.com/jgm/pandoc/issues/4893
+https://pandoc.org/lua-filters.html
+https://github.com/pandoc/lua-filters
+]]--
+function Image(element)
+  if element.src.sub(element.src, 1, string.len('http')) == 'http' then
+    return {}
+  end
+end
diff --git a/pdffiles.txt b/pdffiles.txt
new file mode 100644
index 0000000..d2ba889
--- /dev/null
+++ b/pdffiles.txt
@@ -0,0 +1,25 @@
+./chapters/00.inngangur.md
+./chapters/01.internetid.md
+./chapters/02.saga.md
+./chapters/03.html.md
+./chapters/04.element.md
+./chapters/05.toflur-listar-form.md
+./chapters/06.ad-skrifa-html.md
+./chapters/07.adgengi.md
+./chapters/08.seo.md
+./chapters/09.css.md
+./chapters/10.css-malfraedi.md
+./chapters/11.css-box-model.md
+./chapters/12.css-specifity-cascade.md
+./chapters/13.css-best-practices.md
+./chapters/14.visual-formatting.md
+./chapters/15.css-letur-litir.md
+./chapters/16.css-studningur.md
+./chapters/17.css-flexbox.md
+./chapters/18.skalanlegir.md
+./chapters/19.kvikun.md
+./chapters/20.honnun.md
+./chapters/21.grid.md
+./chapters/22.css-verkefni.md
+./chapters/23.css-taeki-tol.md
+./chapters/24.npm-taeki-tol.md