graph.php: use JSON plugins instead of including PHP plugin files

A couple of big changes here. A lot of logic moved to graph.php.

The PHP plugin files have been rewritten to JSON. In these JSON files
*everything* is optional. Also *NOT* having a JSON plugin file won't
block you from having a graph. The JSON will just make the graphs
prettier (by having a title, y-axis title, legend, colors, etc..).

The Collectd types.db file is parsed and used to determine RRD content.
When things are not defined in the JSON it will fallback to a default.

1 files changed, 14 insertions, 0 deletions

diff --git a/plugin/uptime.json b/plugin/uptime.json
new file mode 100644
index 0000000..c452913
--- /dev/null
+++ b/plugin/uptime.json
@@ -0,0 +1,14 @@
+{
+        "uptime": {
+                "title": "Uptime",
+                "vertical": "Days",
+                "type": "uptime",
+                "legend": {
+                        "value": {
+                                "name": "Current",
+                                "color": "00e000"
+                        }
+                },
+                "legend_format": ".1lf"
+        }
+}