[oe-commits] [bitbake] 10/13: prserv/serv: Only restart the server if settings change

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rpurdie pushed a commit to branch 1.44
in repository bitbake.

commit 7c847b01c30fc42cc78244f00fdf5eaa7b5df716
Author: Richard Purdie <richard.purdie at linuxfoundation.org>
AuthorDate: Sat Nov 23 11:48:31 2019 +0000

    prserv/serv: Only restart the server if settings change
    
    The server is now restarting when running commands which doesn't make
    sense. Only restart if its configuration has changed. This should
    potentially fix various memory resident bitbake usages too.
    
    Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
 lib/prserv/serv.py | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/lib/prserv/serv.py b/lib/prserv/serv.py
index 1d9148b..6d8142f 100644
--- a/lib/prserv/serv.py
+++ b/lib/prserv/serv.py
@@ -450,29 +450,35 @@ class PRServiceConfigError(Exception):
 def auto_start(d):
     global singleton
 
-    # Shutdown any existing PR Server
-    auto_shutdown()
-
     host_params = list(filter(None, (d.getVar('PRSERV_HOST') or '').split(':')))
     if not host_params:
+        # Shutdown any existing PR Server
+        auto_shutdown()
         return None
 
     if len(host_params) != 2:
+        # Shutdown any existing PR Server
+        auto_shutdown()
         logger.critical('\n'.join(['PRSERV_HOST: incorrect format',
                 'Usage: PRSERV_HOST = "<hostname>:<port>"']))
         raise PRServiceConfigError
 
-    if is_local_special(host_params[0], int(host_params[1])) and not singleton:
+    if is_local_special(host_params[0], int(host_params[1])):
         import bb.utils
         cachedir = (d.getVar("PERSISTENT_DIR") or d.getVar("CACHE"))
         if not cachedir:
             logger.critical("Please set the 'PERSISTENT_DIR' or 'CACHE' variable")
             raise PRServiceConfigError
-        bb.utils.mkdirhier(cachedir)
         dbfile = os.path.join(cachedir, "prserv.sqlite3")
         logfile = os.path.join(cachedir, "prserv.log")
-        singleton = PRServSingleton(os.path.abspath(dbfile), os.path.abspath(logfile), ("localhost",0))
-        singleton.start()
+        if singleton:
+            if singleton.dbfile != dbfile:
+               # Shutdown any existing PR Server as doesn't match config
+               auto_shutdown()
+        if not singleton:
+            bb.utils.mkdirhier(cachedir)
+            singleton = PRServSingleton(os.path.abspath(dbfile), os.path.abspath(logfile), ("localhost",0))
+            singleton.start()
     if singleton:
         host, port = singleton.getinfo()
     else:

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