linux: Create install.sh for Bitstream Vera conf

For #17
Fixes #14

fontconfig/user-bitstream-vera-fonts.conf → linux/fontconfig/user-bitstream-vera-fonts.conf

@@ -1,28 +1,31 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE fontconfig SYSTEM "fonts.dtd">
+<!--
+Emoji One Color SVGinOT Font
+Fontconfig fonts.conf for a Bitstream Vera default
 
-<fontconfig>
-  <!--
-  Emoji One Color SVGinOT Font
-  https://github.com/eosrei/emojione-color-font
+https://github.com/eosrei/emojione-color-font
 
-  The DejaVu font family is based on the Bitstream Vera font family to provide
-  greater unicode coverage. The only way to override the emoji it includes is
-  to make the emoji font the primary system font. This shouldn't be a problem,
-  but a number of programs do not correctly use font fallback resulting in font
-  rendering errors everywhere.
+The DejaVu font family is based on the Bitstream Vera font family to provide
+greater unicode coverage. The only way to override the emoji it includes is
+to make the emoji font the primary system font. This shouldn't be a problem,
+but a number of programs do not correctly use font fallback resulting in font
+rendering errors everywhere.
 
-  This font.conf makes Bitstream Vera the default font for Serif, Sans-Serif,
-  and Monospace font requests since it does not contain any Unicode Emoji
-  characters. Emoji One Color font is the first fallback, followed by DejaVu
-  to provide everything else.
+This font.conf makes Bitstream Vera the default font for Serif, Sans-Serif,
+and Monospace font requests since it does not contain any Unicode Emoji
+characters. Emoji One Color font is the first fallback, followed by DejaVu
+to provide everything else.
 
-  Test with:
-  fc-match -s serif
-  fc-match -s sans-serif
-  fc-match -s monospace
-  -->
+Install required fonts with:
+sudo apt-get install ttf-bitstream-vera
 
+Test with:
+fc-match -s serif
+fc-match -s sans-serif
+fc-match -s monospace
+-->
+<fontconfig>
   <match target="font">
     <!-- If the requested font is Bitstream Vera Serif -->
     <test name="family" compare="eq">

linux/install.sh

@@ -0,0 +1,46 @@
+#!/bin/sh
+#https://github.com/eosrei/emojione-color-font
+echo "Emoji One Color font installer for Linux\n"
+
+# Check for Bitstream Vera
+fc-list | grep "Bitstream Vera" > /dev/null
+RETURN=$?
+if [ $RETURN -ne 0 ];then
+  echo "Bitstream Vera font family not found. Please install it:"
+  echo "sudo apt-get install ttf-bitstream-vera"
+  exit 1
+fi
+echo "NOTE: Changing default font family to Bitstream Vera"
+
+# Stop on errors
+set -e
+# Set XDG_DATA_HOME to default if empty.
+if [ -z "$XDG_DATA_HOME" ];then
+  XDG_DATA_HOME=$HOME/.local/share
+fi
+
+# Remove font from old directory if exists (temporary backwards compat)
+if [ -f ~/.fonts/EmojiOneColor-SVGinOT.ttf ];then
+  echo "Removing the font from ~/.fonts"
+  rm ~/.fonts/EmojiOneColor-SVGinOT.ttf
+fi
+
+# Create a user font directory
+mkdir -p $XDG_DATA_HOME/fonts
+echo "Installing the font in: $XDG_DATA_HOME/fonts/"
+cp EmojiOneColor-SVGinOT.ttf $XDG_DATA_HOME/fonts/
+# Create a font config directory
+FONTCONFIG=$HOME/.config/fontconfig
+mkdir -p $FONTCONFIG
+# Check for an existing font config
+if [ -f $FONTCONFIG/fonts.conf ];then
+  echo "Existing fonts.conf backed up to fonts.bak"
+  cp $FONTCONFIG/fonts.conf $FONTCONFIG/fonts.bak
+fi
+# Install fonts.conf
+cp fontconfig/user-bitstream-vera-fonts.conf $FONTCONFIG/fonts.conf
+
+echo "Clearing font cache"
+fc-cache -f
+
+echo "Done!"