From a0c23306be55216fc6fa4dc761dbf3151672a855 Mon Sep 17 00:00:00 2001
From: Egor Tensin <Egor.Tensin@gmail.com>
Date: Thu, 4 Mar 2021 12:05:05 +0300
Subject: add journalctl output

---
 app.py     | 42 ++++++++++++++++++++++++++++--------------
 index.html | 16 ++++++++++++++++
 2 files changed, 44 insertions(+), 14 deletions(-)

diff --git a/app.py b/app.py
index a224b0b..8d76170 100755
--- a/app.py
+++ b/app.py
@@ -164,22 +164,32 @@ class Systemd(Command):
         return env
 
 
-class Systemctl(Systemd):
+class Ctl(Systemd):
+    def __init__(self, executable, *args):
+        super().__init__(executable, *args, '--full')
+
+    @classmethod
+    def system(cls, *args):
+        return cls('--system', *args)
+
+    @classmethod
+    def user(cls, *args):
+        return cls('--user', *args)
+
+
+class Systemctl(Ctl):
     def __init__(self, *args):
-        super().__init__('systemctl', *args, '--full')
+        super().__init__('systemctl', *args)
 
-    @staticmethod
-    def system(*args):
-        return Systemctl('--system', *args)
 
-    @staticmethod
-    def user(*args):
-        return Systemctl('--user', *args)
+class Journalctl(Ctl):
+    def __init__(self, *args):
+        super().__init__('journalctl', *args)
 
 
 class Loginctl(Systemd):
     def __init__(self, *args):
-        super().__init__('loginctl', *args)
+        super().__init__('loginctl', *args, '--full')
 
 
 class Task(abc.ABC):
@@ -230,37 +240,41 @@ class PoweroffTask(Task):
 
 
 class InstanceStatusTask(Task):
-    def __init__(self, systemctl):
+    def __init__(self, systemctl, journalctl):
         self.overview_cmd = systemctl('status')
         self.failed_cmd = systemctl('list-units', '--failed')
         self.timers_cmd = systemctl('list-timers', '--all')
+        self.journal_cmd = journalctl('-b', '--lines=20')
 
     def run(self):
         self.overview_task = self.overview_cmd.run()
         self.failed_task = self.failed_cmd.run()
         self.timers_task = self.timers_cmd.run()
+        self.journal_task = self.journal_cmd.run()
 
     def result(self):
         return {
             'overview': self.overview_task.result(),
             'failed': self.failed_task.result(),
             'timers': self.timers_task.result(),
+            'journal': self.journal_task.result(),
         }
 
 
 class SystemInstanceStatusTask(InstanceStatusTask):
     def __init__(self):
-        super().__init__(Systemctl.system)
+        super().__init__(Systemctl.system, Journalctl.system)
 
 
 class UserInstanceStatusTask(InstanceStatusTask):
-    def __init__(self, systemctl=Systemctl.user):
-        super().__init__(systemctl)
+    def __init__(self, systemctl=Systemctl.user, journalctl=Journalctl.user):
+        super().__init__(systemctl, journalctl)
 
     @staticmethod
     def su(user):
         systemctl = lambda *args: Systemd.su(user, Systemctl.user(*args))
-        return UserInstanceStatusTask(systemctl)
+        journalctl = lambda *args: Systemd.su(user, Journalctl.user(*args))
+        return UserInstanceStatusTask(systemctl, journalctl)
 
 
 class UserInstanceStatusTaskList(Task):
diff --git a/index.html b/index.html
index 3cbf6cc..d1adc14 100644
--- a/index.html
+++ b/index.html
@@ -50,6 +50,11 @@ h1, .h1 {
             <pre class="pre-scrollable" id="timers_system"></pre>
           </div>
           <hr>
+          <p><button type="button" class="btn btn-outline-primary btn-sm button-expand" data-toggle="collapse" data-target="#collapse_journal_system">+</button><a href="#collapse_journal_system" data-toggle="collapse"><code>journalctl --system -b --lines=20</code></a></p>
+          <div class="collapse" id="collapse_journal_system">
+            <pre class="pre-scrollable" id="journal_system"></pre>
+          </div>
+          <hr>
         </div>
       </div>
       <div id="users">
@@ -98,6 +103,9 @@ function set_system(data) {
     if ('timers' in data) {
         $('#timers_system').text(data['timers']);
     }
+    if ('journal' in data) {
+        $('#journal_system').text(data['journal']);
+    }
 }
 
 var users = [];
@@ -126,6 +134,11 @@ function add_user(name) {
       <pre class="pre-scrollable" id="timers_user_${name}"></pre>
     </div>
     <hr>
+    <p><button type="button" class="btn btn-outline-primary btn-sm button-expand" data-toggle="collapse" data-target="#collapse_journal_user_${name}">+</button><a href="#collapse_journal_user_${name}" data-toggle="collapse"><code>journalctl --user -b --lines=20</code></a></p>
+    <div class="collapse" id="collapse_journal_user_${name}">
+      <pre class="pre-scrollable" id="journal_user_${name}"></pre>
+    </div>
+    <hr>
   </div>
 </div>
 `;
@@ -144,6 +157,9 @@ function set_user(name, data) {
     if ('timers' in data) {
         $('#timers_user_' + name).text(data['timers']);
     }
+    if ('journal' in data) {
+        $('#journal_user_' + name).text(data['journal']);
+    }
 }
 
 function set_users(data) {
-- 
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