From 15ba3a80c52cca9fcc8af2a09a0c76643ce94825 Mon Sep 17 00:00:00 2001
From: Ahmed AbouZaid <ahmed.m@aabouzaid.com>
Date: Thu, 31 Jan 2019 08:47:14 +0100
Subject: [PATCH] set images extension to fix missing images in mobi format

---
 Dockerfile   |  1 +
 bootstrap.sh | 16 ++++++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/Dockerfile b/Dockerfile
index 6085fe3..f0147c7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -17,6 +17,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     ruby-dev \
     wget \
     zlib1g-dev \
+    file \
     && gem install bundler --no-ri --no-rdoc \
     && bundle install \
     && apt-get clean \
diff --git a/bootstrap.sh b/bootstrap.sh
index b29a07f..fa687d6 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -36,6 +36,22 @@ 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
+IMGS_FILES="$(ls /src/html/${IMGS_DOMAIN}/*)"
+for FILE_NAME_FULL in ${IMGS_FILES}; do
+
+    # Get file vars.
+    FILE_NAME_BASE="$(basename ${FILE_NAME_FULL})"
+    FILE_TYPE=$(file -b -- "${FILE_NAME_FULL}" | cut -f1 -d " ")
+
+    # Rename and replace file.
+    mv "${FILE_NAME_FULL}" "${FILE_NAME_FULL}.${FILE_TYPE,,}" &&
+    grep -rl "${FILE_NAME_BASE}" ./html | xargs sed -i "s/${FILE_NAME_BASE}/${FILE_NAME_BASE}.${FILE_TYPE,,}/g"
+
+done
+
 #
 ruby generate.rb