From daadbd5773e4db2177e7ec13ba29c23e28344011 Mon Sep 17 00:00:00 2001
From: Jake Howard <git@theorangeone.net>
Date: Sun, 29 Apr 2018 20:09:44 +0100
Subject: [PATCH] Inject some more variables into metadata

---
 build.sh      | 2 +-
 variables.lua | 6 +++++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/build.sh b/build.sh
index 173a3f4..989aec1 100755
--- a/build.sh
+++ b/build.sh
@@ -8,7 +8,7 @@ SCRIPTPATH=`dirname $SCRIPT`
 ADDITIONAL_ARGS=${@:2}
 
 INPUT_FILE=`realpath $1`
-INPUT_DIR=`dirname $INPUT_FILE`
+export INPUT_DIR=`dirname $INPUT_FILE`
 METADATA_FILE="$INPUT_DIR/metadata.yaml"
 export OUTPUT_FILE="$PWD/output.pdf"
 
diff --git a/variables.lua b/variables.lua
index 02880cf..77db379 100644
--- a/variables.lua
+++ b/variables.lua
@@ -19,7 +19,11 @@ end
 
 return {
     {
-        Meta = getVars
+        Meta = function (meta)
+            meta = getVars(meta)
+            meta['outputFile'] = os.getenv("OUTPUT_FILE")
+            meta['inputDir'] = os.getenv("INPUT_DIR")
+        end
     },
     {
         Str = function (el)