Show a demo of a theme.

show_theme.sh

@@ -0,0 +1,57 @@
+#!/bin/bash -e
+#
+# Show theme.
+#
+#   Copyright (c) 2014-2017 Steven Bakker; All rights reserved.
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the same terms as Perl itself. See "perldoc perlartistic".
+#
+#   This software is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+dir=${0%/*}
+prog=${0##*/}
+
+die() {
+    echo "$@" >&2
+    exit 1
+}
+
+case $# in
+    1) theme=$1 ;;
+    *) die "usage: $prog theme" ;;
+esac
+
+is_yaml=false
+theme_arg=''
+
+if [[ $theme =~ \.y[a]?ml$ && -f $theme ]]; then
+    is_yaml=true
+    theme_arg=$theme
+else
+    if [[ -d $theme ]]; then
+        if [[ -f $theme/colors.yaml ]]; then
+            is_yaml=true
+            theme_arg="$theme/colors.yaml"
+        elif [[ -f $theme/palette ]]; then
+            is_yaml=false
+            theme_arg="$theme"
+        fi
+    elif [[ -f colors/$theme/colors.yaml ]]; then
+        is_yaml=true
+        theme_arg="colors/$theme/colors.yaml"
+    elif [[ -f colors/$theme/palette ]]; then
+        is_yaml=false
+        theme_arg="colors/$theme"
+    fi
+fi
+
+[[ -n $theme_arg ]] || die "$prog: $theme is not a valid theme file/directory"
+
+if $is_yaml; then
+    $dir/src/parse_yaml_theme.pl "$theme_arg" show
+else
+    $dir/src/theme_to_yaml.pl --show "$theme_arg"
+fi