Apt updates indicator

2 files changed, 40 insertions, 0 deletions

diff --git a/i3/check-updates.py b/i3/check-updates.py
new file mode 100755
index 0000000..2e25c4b
--- /dev/null
+++ b/i3/check-updates.py
@@ -0,0 +1,35 @@
+#!/usr/bin/env python3
+
+# add a crontab entry with crontab -e:
+# 0 */2 * * *     $HOME/.config/nvim/i3/check-updates.py
+#
+# create /etc/apt/apt.conf.d/10periodic with:
+# APT::Periodic::Enable "1";
+# APT::Periodic::Update-Package-Lists "1";
+# APT::Periodic::AutocleanInterval "7";
+# APT::Periodic::Verbose "1";
+#
+
+
+import subprocess
+import pathlib
+import os
+
+CMD = ["apt", "list", "--upgradeable"]
+
+
+def check_updates():
+    output = str(subprocess.check_output(CMD, stderr=subprocess.DEVNULL))
+    output = output.splitlines()
+    return len(output[1:-1])
+
+
+if __name__ == "__main__":
+    pending = check_updates()
+    if pending == 0:
+        result = ""
+    else:
+        result = f"{pending} updates"
+
+    with open(os.path.join(pathlib.Path.home(), ".pending_updates"), "wt") as fd:
+        fd.write(result)
diff --git a/i3/i3status.conf b/i3/i3status.conf
index 349924d..2cb2a16 100644
--- a/i3/i3status.conf
+++ b/i3/i3status.conf
@@ -15,6 +15,7 @@ order += "cpu_usage"
 order += "cpu_temperature 0"
 order += "memory"
 order += "disk /"
+order += "read_file updates"
 order += "volume master"
 order += "tztime local"
 
@@ -49,3 +50,7 @@ volume master {
         mixer = "Master"
         mixer_idx = 0
 }
+
+read_file updates {
+    path = "/home/reidrac/.pending_updates"
+}