From 265d11a3b525fed428f09b5ae1f829d349ed2f6a Mon Sep 17 00:00:00 2001
From: Nemo <me@captnemo.in>
Date: Fri, 1 May 2020 03:34:30 +0530
Subject: [PATCH] Improve typography by switching to pandoc for PDF generation

---
 Dockerfile                  |  2 +-
 README.md                   |  2 +-
 generate.rb                 |  2 --
 bootstrap.sh => generate.sh | 33 ++++++++++++++++++++++++++++-----
 4 files changed, 30 insertions(+), 9 deletions(-)
 rename bootstrap.sh => generate.sh (75%)

diff --git a/Dockerfile b/Dockerfile
index bd64ff7..35ef6ce 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -25,6 +25,6 @@ COPY . /src/
 
 RUN bundle install
 
-ENTRYPOINT ["/src/bootstrap.sh", "docker"]
+ENTRYPOINT ["/src/generate.sh", "docker"]
 
 VOLUME ["/output"]
diff --git a/README.md b/README.md
index 98d8644..0d5a1ae 100644
--- a/README.md
+++ b/README.md
@@ -46,7 +46,7 @@ The build for the above Docker image can be audited at <https://hub.docker.com/r
 
 ## macOS
 
-Review and run the `bootstrap.sh` script to generate the EPUB, MOBI, and PDF files
+Review and run the `generate.sh` script to generate the EPUB, MOBI, and PDF files
 
 Requirements:
 
diff --git a/generate.rb b/generate.rb
index aa335a9..96f9447 100644
--- a/generate.rb
+++ b/generate.rb
@@ -86,8 +86,6 @@ chapter_links.each do |chapter_link|
     content = content.children.at_css('div')
   end
 
-
-
   # replace h1 title
   content.at_css('h1').inner_html = title
 
diff --git a/bootstrap.sh b/generate.sh
similarity index 75%
rename from bootstrap.sh
rename to generate.sh
index 79af46b..d5940ff 100755
--- a/bootstrap.sh
+++ b/generate.sh
@@ -12,7 +12,6 @@ export ${BOOKS[${BOOK_SLUG^^}]}
 # Common vars.
 IMGS_DOMAIN="lh3.googleusercontent.com"
 
-#
 # Make sure that links are relative \
 # # Remove the /sre/ directories
 # Save stuff in html/ directory
@@ -42,7 +41,6 @@ if [ "$MODE" != "docker" ];then
     bundle install
 fi
 
-#
 # Add extension to files.
 # That because `pandoc` cannot generate the right `mime type` without the extension.
 # https://github.com/captn3m0/google-sre-ebook/issues/19
@@ -60,7 +58,11 @@ for FILE_NAME_FULL in ${IMGS_FILES}; do
 
 done
 
-#
+if [[ $@ == *'--only-download'* ]]; then
+    echo "Skipping generation"
+    exit 0
+fi
+
 # Generate epub from html.
 echo "Generate book ..."
 bundle exec ruby generate.rb
@@ -69,16 +71,37 @@ pandoc --from=html --to=epub                                 \
     --output=../../../../../${BOOK_FILE}.epub                \
     --epub-metadata=../../../../../metadata/${BOOK_NAME}.xml \
     --epub-cover-image=../../../../../cover/${BOOK_NAME}.jpg \
+    --metadata title="$BOOK_NAME" \
     complete.html
+
+pandoc --from=html --to=pdf                                 \
+    --output=../../../../../${BOOK_FILE}.pdf                \
+    --metadata title="$BOOK_NAME" \
+    --pdf-engine=xelatex \
+    --dpi=300 \
+    -V book \
+    --top-level-division=chapter \
+    --toc \
+    -V lang=en-US \
+    -V classoption=oneside \
+    -V titlepage=true \
+    -V logo=../../../../../cover/${BOOK_NAME}.jpg \
+    -V titlepage-background=../../../../../cover/${BOOK_NAME}.jpg \
+    -V toc-own-page=true \
+    -V footnotes-pretty=true \
+    -V subparagraph \
+    -V geometry=margin=2cm \
+    -V fig_caption=false \
+    --columns=60 \
+    complete.html
+
 popd
 
-#
 # Generate other format from epub.
 for EXTENSION in mobi pdf; do
     ebook-convert ${BOOK_FILE}.epub ${BOOK_FILE}.${EXTENSION}
 done
 
-#
 # If it works inside docker.
 if [ "$MODE" == "docker" ]; then
     chown -v $(id -u):$(id -g) ${BOOK_FILE}.*