Add disk total, used, free to host/info API (#1909)

API.md

@@ -242,13 +242,16 @@ return:
 
 ```json
 {
-  "hostname": "hostname|null",
-  "features": ["shutdown", "reboot", "hostname", "services", "hassos"],
-  "operating_system": "HassOS XY|Ubuntu 16.4|null",
-  "kernel": "4.15.7|null",
   "chassis": "specific|null",
+  "cpe": "xy|null",
   "deployment": "stable|beta|dev|null",
-  "cpe": "xy|null"
+  "disk_total": 32.0,
+  "disk_used": 30.0,
+  "disk_free": 2.0,
+  "features": ["shutdown", "reboot", "hostname", "services", "hassos"],
+  "hostname": "hostname|null",
+  "kernel": "4.15.7|null",
+  "operating_system": "HassOS XY|Ubuntu 16.4|null"
 }
 ```
 

supervisor/api/host.py

@@ -11,6 +11,9 @@ from ..const import (
     ATTR_CPE,
     ATTR_DEPLOYMENT,
     ATTR_DESCRIPTON,
+    ATTR_DISK_FREE,
+    ATTR_DISK_TOTAL,
+    ATTR_DISK_USED,
     ATTR_FEATURES,
     ATTR_HOSTNAME,
     ATTR_KERNEL,
@@ -39,11 +42,14 @@ class APIHost(CoreSysAttributes):
         return {
             ATTR_CHASSIS: self.sys_host.info.chassis,
             ATTR_CPE: self.sys_host.info.cpe,
+            ATTR_DEPLOYMENT: self.sys_host.info.deployment,
+            ATTR_DISK_FREE: self.sys_host.info.free_space,
+            ATTR_DISK_TOTAL: self.sys_host.info.total_space,
+            ATTR_DISK_USED: self.sys_host.info.used_space,
             ATTR_FEATURES: self.sys_host.supported_features,
             ATTR_HOSTNAME: self.sys_host.info.hostname,
-            ATTR_OPERATING_SYSTEM: self.sys_host.info.operating_system,
-            ATTR_DEPLOYMENT: self.sys_host.info.deployment,
             ATTR_KERNEL: self.sys_host.info.kernel,
+            ATTR_OPERATING_SYSTEM: self.sys_host.info.operating_system,
         }
 
     @api_process

supervisor/const.py

@@ -164,6 +164,9 @@ ATTR_AUDIO_OUTPUT = "audio_output"
 ATTR_INPUT = "input"
 ATTR_OUTPUT = "output"
 ATTR_DISK = "disk"
+ATTR_DISK_FREE = "disk_free"
+ATTR_DISK_TOTAL = "disk_total"
+ATTR_DISK_USED = "disk_used"
 ATTR_SERIAL = "serial"
 ATTR_SECURITY = "security"
 ATTR_BUILD_FROM = "build_from"

supervisor/host/info.py

@@ -51,6 +51,20 @@ class InfoCenter(CoreSysAttributes):
         """Return local CPE."""
         return self.sys_dbus.hostname.cpe
 
+    @property
+    def total_space(self) -> float:
+        """Return total space (GiB) on disk for supervisor data directory."""
+        return self.coresys.hardware.get_disk_total_space(
+            self.coresys.config.path_supervisor
+        )
+
+    @property
+    def used_space(self) -> float:
+        """Return used space (GiB) on disk for supervisor data directory."""
+        return self.coresys.hardware.get_disk_used_space(
+            self.coresys.config.path_supervisor
+        )
+
     @property
     def free_space(self) -> float:
         """Return available space (GiB) on disk for supervisor data directory."""

supervisor/misc/hardware.py

@@ -196,6 +196,16 @@ class Hardware:
 
         return datetime.utcfromtimestamp(int(found.group(1)))
 
+    def get_disk_total_space(self, path: Union[str, Path]) -> float:
+        """Return total space (GiB) on disk for path."""
+        total, _, _ = shutil.disk_usage(path)
+        return round(total / (1024.0 ** 3), 1)
+
+    def get_disk_used_space(self, path: Union[str, Path]) -> float:
+        """Return used space (GiB) on disk for path."""
+        _, used, _ = shutil.disk_usage(path)
+        return round(used / (1024.0 ** 3), 1)
+
     def get_disk_free_space(self, path: Union[str, Path]) -> float:
         """Return free space (GiB) on disk for path."""
         _, _, free = shutil.disk_usage(path)

tests/misc/test_hardware.py

@@ -41,3 +41,21 @@ def test_free_space():
         free = system.get_disk_free_space("/data")
 
     assert free == 2.0
+
+
+def test_total_space():
+    """Test total space helper."""
+    system = Hardware()
+    with patch("shutil.disk_usage", return_value=(10 * (1024.0 ** 3), 42, 42)):
+        total = system.get_disk_total_space("/data")
+
+    assert total == 10.0
+
+
+def test_used_space():
+    """Test used space helper."""
+    system = Hardware()
+    with patch("shutil.disk_usage", return_value=(42, 8 * (1024.0 ** 3), 42)):
+        used = system.get_disk_used_space("/data")
+
+    assert used == 8.0