Allow to quickly check one site status with memory DB

urlchecker_bot.py

@@ -28,6 +28,10 @@ class WebBot:
     def __init__(self, **kw):
         self.config = createConfiguration(**kw)
 
+    def closeDB(self):
+        if hasattr(self, "_db"):
+            self._db.close()
+
     def initDB(self):
         self._db = LogDB(self.config["SQLITE"])
         self._db.createTables()
@@ -98,9 +102,6 @@ class WebBot:
                 # XXX Check HTTP Cache
 
     def status(self):
-        # XXX
-        self.initDB()
-
         # Report the bot status
         print("# STATUS")
         status = reportStatus(self._db).get()
@@ -206,11 +207,8 @@ class WebBot:
     def stop(self):
         self._running = False
         logStatus(self._db, "stop")
-        if hasattr(self, "_db"):
-            self._db.close()
 
-    def run(self):
-        self.initDB()
+    def crawl(self):
         status_id = logStatus(self._db, "start")
         logConfiguration(self._db, status_id, self.config)
 
@@ -228,9 +226,29 @@ class WebBot:
         except:
             # XXX Put traceback in the log?
             logStatus(self._db, "error")
-            self.stop()
             raise
 
+    def run(self, mode):
+        if mode not in ["crawl", "status"]:
+            raise NotImplementedError("Unexpected mode: %s" % mode)
+
+        if self.config["SQLITE"] == ":memory:":
+            # Crawl/report are mandatory when using memory
+            mode = "all"
+
+        self.initDB()
+
+        try:
+            if mode in ["crawl", "all"]:
+                self.crawl()
+            if mode in ["status", "all"]:
+                self.status()
+        except:
+            self.closeDB()
+            raise
+        else:
+            self.closeDB()
+
 
 def create_bot(**kw):
     return WebBot(**kw)

urlchecker_cli.py

@@ -2,11 +2,16 @@ import click
 import sys
 from urlchecker_bot import create_bot
 
+
 @click.command(short_help="Runs url checker bot.")
-@click.option('--run', '-r', help="The bot operation to run.",
+@click.option(
+    "--run",
+    "-r",
+    help="The bot operation mode to run.",
     show_default=True,
-              default='status',
-              type=click.Choice(['crawl', 'status']))
+    default="status",
+    type=click.Choice(["crawl", "status"]),
+)
 @click.option(
     "--sqlite", "-s", help="The path of the sqlite DB. (default: :memory:)"
 )
@@ -32,12 +37,7 @@ def runUrlChecker(run, sqlite, dns, url, domain, configuration):
     if dns:
         mapping["DNS"] = dns
     bot = create_bot(cfgfile=configuration, mapping=mapping)
-    if run == 'status':
-      return bot.status()
-    elif run == 'crawl':
-      return bot.run()
-    else:
-      raise NotImplementedError('Unexpected run: %s' % run)
+    return bot.run(run)
 
 
 if __name__ == "__main__":

urlchecker_configuration.py

@@ -29,6 +29,10 @@ def createConfiguration(
             get_default_resolver().nameservers
         )
 
+    if config[CONFIG_SECTION]["SQLITE"] == ":memory:":
+        # Do not loop when using temporary DB
+        config[CONFIG_SECTION]["INTERVAL"] = "-1"
+
     return config[CONFIG_SECTION]