From 8b760e0550fa8a1636f2462b310ce7c2b1636dc7 Mon Sep 17 00:00:00 2001
From: David Griffith <dave@661.org>
Date: Fri, 5 Apr 2019 05:59:38 -0700
Subject: [PATCH] Emerald installer now downloads the package.  Both scripts
 identify themselves.

---
 .gitignore                 |  2 ++
 tools/install-emerald.sh   | 61 +++++++++++++++++++++++++++++++++-----
 tools/uninstall-emerald.sh |  2 ++
 3 files changed, 58 insertions(+), 7 deletions(-)

diff --git a/.gitignore b/.gitignore
index 7ff90f5..b2da6b9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
 output/*
 *.pyc
 *.z5
+tools/emerald.zip
+tools/emerald
diff --git a/tools/install-emerald.sh b/tools/install-emerald.sh
index bdecb19..c374ce6 100755
--- a/tools/install-emerald.sh
+++ b/tools/install-emerald.sh
@@ -4,24 +4,67 @@
 # https://www.ctan.org/tex-archive/fonts/emerald/
 # into $TEXMFLOCAL, which is usually /usr/local/share/texmf
 #
-# To use, put emerald.zip in the same directory as this script, unzip
-# emerald.zip, and execute this script.
+# This script will download emerald.zip if it's not already present.
+# It must be run as root.
 #
 # Created by David Griffith <dave@661.org>
 # Released into the public domain 2016
 
+# Exit values:
+#	0	Script completed installation successfully.
+#
+#	1	Unable to find kpsewhich(1), maybe TeX isn't installed?
+#	2	Unable to find unzip(1).
+#	3	Script not run as root.
+#	4	Unable to download package.
+#
 
-
-if [ `ps -o uid= $$` -ne 0 ] ; then
-	echo "This script must be run as root"
-	exit 1
-fi
+EMERALD_URL="http://mirrors.ctan.org/fonts/emerald.zip"
+EMERALD_PKG=emerald.zip
 
 PERM=644
 DPERM=755
 PKGDIR="emerald"
 TEXMFLOCAL=`kpsewhich -var-value TEXMFLOCAL`
 
+echo "Emerald CTAN package installer..."
+
+if [ ! $(command -v kpsewhich) ] ; then
+	echo "  ** Cannot find kpsewhich!  Is TeX really installed?"
+	exit 1
+fi
+
+if [ ! $(command -v unzip) ] ; then
+	echo "  ** Cannot find unzip!  Please install it and try again."
+	exit 2
+fi
+
+if [ `ps -o uid= $$` -ne 0 ] ; then
+	echo "  ** This script must be run as root"
+	exit 3
+fi
+
+if [ -f $EMERALD_PKG ] ; then
+	echo "Found $EMERALD_PKG right here."
+else
+	echo "Attempting download from $EMERALD_URL..."
+	if [ $(command -v curl) ] ; then
+		echo "Downloading $EMERALD_URL using curl."
+		command curl -L $EMERALD_URL -o $EMERALD_PKG
+	elif [ $(command -v wget) ] ; then
+		echo "Downloading $EMERALD_URL using wget."
+		command wget $EMERALD_URL -O $EMERALD_PKG
+	else
+		echo "  ** Neither curl nor wget are present."
+		echo "  ** Please download the emerald package manually,"
+		echo "  ** put it in this directory, and try again."
+		exit 4
+	fi
+fi
+
+echo "Unpacking $EMERALD_PKG..."
+unzip -q $EMERALD_PKG
+
 echo "Installing to $TEXMFLOCAL..."
 echo "Making directories..."
 install -m $DPERM -d	$TEXMFLOCAL/fonts/afm/emerald \
@@ -45,3 +88,7 @@ install -m $PERM -D $PKGDIR/tex/latex/emerald/* $TEXMFLOCAL/tex/latex/emerald
 echo "Map emerald.map" >> $TEXMFLOCAL/web2c/updmap.cfg
 mktexlsr $TEXMFLOCAL
 updmap-sys
+
+echo "Done!"
+
+exit 0
diff --git a/tools/uninstall-emerald.sh b/tools/uninstall-emerald.sh
index 096003b..ad1c0f8 100755
--- a/tools/uninstall-emerald.sh
+++ b/tools/uninstall-emerald.sh
@@ -6,6 +6,8 @@
 # Created by David Griffith <dave@661.org>
 # Released into the public domain 2016
 
+echo "Emerald CTAN package uninstaller..."
+
 if [ `ps -o uid= $$` -ne 0 ] ; then
 	echo "This script must be run as root"
 	exit 1
-- 
2.31.1