From 94dad8029d94833f043412dfdb0382bf76fbcf14 Mon Sep 17 00:00:00 2001
From: Martin von Gagern <Martin.vGagern@gmx.net>
Date: Wed, 23 Nov 2016 15:38:47 +0100
Subject: [PATCH] Check out test fonts in screenshotter.sh (#570)

This ensures that running screenshots as indicated by the screenshotter
readme will correctly render the Unicode examples, even if not run on
Travis.  It also fixes the commit ID of the unicode fonts.

One alternative would have been using a git submodule.  But as many tools
will initialize submodules automatically, that would mean big downloads for
anyone using such a tool to clone KaTeX.

Another alternative would be tweaking the server to fetch the files on
demand if the local copy is unavailable.  But that would cause additional
network overhead, so grabbing the files just once should be simpler.
---
 .travis.yml                            |  1 -
 dockers/Screenshotter/screenshotter.sh | 12 ++++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index 5b6e2880..4228096c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,5 +10,4 @@ before_script:
   - docker images --no-trunc
 script:
   - npm test
-  - git clone https://github.com/Khan/KaTeX-test-fonts test/screenshotter/unicode-fonts
   - dockers/Screenshotter/screenshotter.sh --verify
diff --git a/dockers/Screenshotter/screenshotter.sh b/dockers/Screenshotter/screenshotter.sh
index b05a0494..fc0f3f7f 100755
--- a/dockers/Screenshotter/screenshotter.sh
+++ b/dockers/Screenshotter/screenshotter.sh
@@ -14,6 +14,18 @@ cleanup() {
     container=
 }
 
+SS_DIR=$(dirname "$0")
+TOP_DIR=${SS_DIR}/../..
+FONTS_DIR=${TOP_DIR}/test/screenshotter/unicode-fonts
+if [[ ! -d "${FONTS_DIR}" ]]; then
+    echo "Cloning test fonts repository"
+    git clone https://github.com/Khan/KaTeX-test-fonts "${FONTS_DIR}" \
+        || exit 2
+fi
+pushd "${FONTS_DIR}" || exit 2
+git checkout --detach 99fa66a2da643218754c8236b9f9151cac71ba7c || exit 2
+popd || exit 2
+
 container=
 trap cleanup EXIT
 status=0