From 2bad49450fb5dff9524a26dabaacc34ae500df01 Mon Sep 17 00:00:00 2001
From: Linus Nordberg <linus@nordu.net>
Date: Fri, 25 Sep 2015 16:26:42 +0200
Subject: merge_backup.py and merge_dist.py take nodes on command line.

If no nodes are given on the command line, all appropriate nodes are
used.
---
 tools/merge_backup.py | 13 ++++++++++---
 tools/merge_dist.py   | 11 ++++++++---
 tools/mergetools.py   |  1 +
 3 files changed, 19 insertions(+), 6 deletions(-)

diff --git a/tools/merge_backup.py b/tools/merge_backup.py
index 48197fc..37b2757 100755
--- a/tools/merge_backup.py
+++ b/tools/merge_backup.py
@@ -15,12 +15,11 @@ from mergetools import chunks, backup_sendlog, get_logorder, \
      hexencode, setverifiedsize, sendentry_merge, verifyroot, \
      get_nfetched, parse_args
 
-def merge_backup(args, config, localconfig):
+def merge_backup(args, config, localconfig, secondaries):
     paths = localconfig["paths"]
     own_key = (localconfig["nodename"],
                "%s/%s-private.pem" % (paths["privatekeys"],
                                       localconfig["nodename"]))
-    secondaries = config.get("mergenodes", [])
     mergedb = paths["mergedb"]
     chainsdir = mergedb + "/chains"
     logorderfile = mergedb + "/logorder"
@@ -138,11 +137,19 @@ def main():
     Sleep some and start over.
     """
     args, config, localconfig = parse_args()
+    all_secondaries = \
+      [n for n in config.get('mergenodes', []) if \
+       n['name'] != config['primarymergenode']]
     paths = localconfig["paths"]
     create_ssl_context(cafile=paths["https_cacertfile"])
 
+    if len(args.node) == 0:
+        nodes = all_secondaries
+    else:
+        nodes = [n for n in all_secondaries if n["name"] in args.node]
+
     while True:
-        merge_backup(args, config, localconfig)
+        merge_backup(args, config, localconfig, nodes)
         if args.interval is None:
             break
         print >>sys.stderr, "sleeping", args.interval, "seconds"
diff --git a/tools/merge_dist.py b/tools/merge_dist.py
index 0e85984..20b6a06 100755
--- a/tools/merge_dist.py
+++ b/tools/merge_dist.py
@@ -13,12 +13,11 @@ from certtools import timing_point, \
 from mergetools import get_curpos, get_logorder, chunks, get_missingentries, \
      sendsth, sendlog, sendentry, read_chain, parse_args
 
-def merge_dist(args, config, localconfig, timestamp):
+def merge_dist(args, localconfig, frontendnodes, timestamp):
     paths = localconfig["paths"]
     own_key = (localconfig["nodename"],
                "%s/%s-private.pem" % (paths["privatekeys"],
                                       localconfig["nodename"]))
-    frontendnodes = config["frontendnodes"]
     mergedb = paths["mergedb"]
     chainsdir = mergedb + "/chains"
     logorderfile = mergedb + "/logorder"
@@ -125,8 +124,14 @@ def main():
     """
     args, config, localconfig = parse_args()
     timestamp = 0
+
+    if len(args.node) == 0:
+        nodes = config["frontendnodes"]
+    else:
+        nodes = [n for n in config["frontendnodes"] if n["name"] in args.node]
+
     while True:
-        timestamp = merge_dist(args, config, localconfig, timestamp)
+        timestamp = merge_dist(args, localconfig, nodes, timestamp)
         if args.interval is None:
             break
         print >>sys.stderr, "sleeping", args.interval, "seconds"
diff --git a/tools/mergetools.py b/tools/mergetools.py
index 86f9255..7b674de 100644
--- a/tools/mergetools.py
+++ b/tools/mergetools.py
@@ -391,6 +391,7 @@ def chunks(l, n):
 
 def parse_args():
     parser = argparse.ArgumentParser(description="")
+    parser.add_argument('node', nargs='*', help="Node to operate on")
     parser.add_argument('--config', help="System configuration",
                         required=True)
     parser.add_argument('--localconfig', help="Local configuration",
-- 
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