initial commit

README.md

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 # micro-battery
-Display battery percentage for micro
+Displays battery percentage on micro

battery.lua

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+VERSION = "0.0.1"
+
+local micro = import("micro")
+local shell = import("micro/shell")
+local config = import("micro/config")
+
+function init()
+  config.MakeCommand("battery", percentage, config.NoComplete)
+  config.TryBindKey("F7", "lua:battery.percentage", false)
+end
+
+-- Runs command and filter one line that has what is in contains
+function RunCommandAndGrep(input, contains)
+  local ret, err = shell.RunCommand(input)
+  if err ~= nil then
+    micro.Log("Error while running " .. input)
+  end
+
+  local result = ""
+  for s in ret:gmatch("[^\r\n]+") do
+      if string.find(s, contains) then
+        result = s
+      end
+  end
+  return result
+end
+
+-- percentage print the battery percentage on the infobar as message.
+-- The function emulate the next cli command
+-- upower -i $(upower -e | grep BAT) | grep --color=never -E "percentage"
+function percentage(bp)
+  -- get devices and select the battery one
+  local device, err = RunCommandAndGrep("upower -e", "BAT")
+  if err ~= nil then
+    micro.Log("Error while running upower")
+  end
+
+  -- query the device BATtery and filter the line with the percentage
+  local batteryPercentage, err = RunCommandAndGrep("upower -i " .. device, "percentage")
+  if err ~= nil then
+    micro.Log("Error while running upower: " ..  err)
+  end
+
+  -- display Battery percentage: x%
+	micro.InfoBar():Message("Battery" .. batteryPercentage)
+end

help/battery.md

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+# battery Plugin #
+
+The battery plugin provides the user with the ability to display
+the battery percentage.
+
+Currently it depends on upower.
+
+To initiate the function, you can either:
+
+Press "F7"
+
+Or run:
+
+```
+> battery
+```

info.json

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+{
+    "name": "battery",
+    "description": "Show battery percentage",
+    "website": "",
+    "install": "",
+    "version": "0.0.1",
+    "require": [
+        "micro >= 2.0.0"
+    ]
+}

repo.json

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+[{
+  "Name": "battery",
+  "Description": "Shows battery percentage on infobar",
+  "Tags": ["upower", "laptop"],
+  "Website": "https://github.com/dubyte/battery-plugin",
+  "Versions": [
+    {
+      "Version": "0.0.1",
+      "Url": "https://github.com/micro-editor/battery-plugin/archive/v0.0.1.zip",
+      "Require": {
+        "micro": ">=2.0.0"
+      }
+    }
+  ]
+}]
+