[qa] Use single cache dir for chains

.gitignore

@@ -103,10 +103,9 @@ linux-build
 win32-build
 qa/pull-tester/run-bitcoind-for-test.sh
 qa/pull-tester/tests_config.py
-qa/pull-tester/cache/*
 qa/pull-tester/test.*/*
 qa/tmp
-cache/
+qa/cache/*
 share/BitcoindComparisonTool.jar
 
 !src/leveldb*/Makefile

qa/pull-tester/rpc-tests.py

@@ -192,6 +192,7 @@ def runtests():
         coverage = RPCCoverage()
         print("Initializing coverage directory at %s\n" % coverage.dir)
     flags = ["--srcdir=%s/src" % BUILDDIR] + passon_args
+    flags.append("--cachedir=%s/qa/cache" % BUILDDIR)
     if coverage:
         flags.append(coverage.flag)
 

qa/rpc-tests/test_framework/test_framework.py

@@ -47,7 +47,7 @@ class BitcoinTestFramework(object):
         if self.setup_clean_chain:
             initialize_chain_clean(self.options.tmpdir, self.num_nodes)
         else:
-            initialize_chain(self.options.tmpdir, self.num_nodes)
+            initialize_chain(self.options.tmpdir, self.num_nodes, self.options.cachedir)
 
     def setup_nodes(self):
         return start_nodes(self.num_nodes, self.options.tmpdir)
@@ -108,6 +108,8 @@ class BitcoinTestFramework(object):
                           help="Don't stop bitcoinds after the test execution")
         parser.add_option("--srcdir", dest="srcdir", default=os.path.normpath(os.path.dirname(os.path.realpath(__file__))+"/../../../src"),
                           help="Source directory containing bitcoind/bitcoin-cli (default: %default)")
+        parser.add_option("--cachedir", dest="cachedir", default=os.path.normpath(os.path.dirname(os.path.realpath(__file__))+"/../../cache"),
+                          help="Directory for caching pregenerated datadirs")
         parser.add_option("--tmpdir", dest="tmpdir", default=tempfile.mkdtemp(prefix="test"),
                           help="Root directory for datadirs")
         parser.add_option("--tracerpc", dest="trace_rpc", default=False, action="store_true",

qa/rpc-tests/test_framework/util.py

@@ -193,7 +193,7 @@ def wait_for_bitcoind_start(process, url, i):
                 raise # unkown JSON RPC exception
         time.sleep(0.25)
 
-def initialize_chain(test_dir, num_nodes):
+def initialize_chain(test_dir, num_nodes, cachedir):
     """
     Create a cache of a 200-block-long chain (with wallet) for MAX_NODES
     Afterward, create num_nodes copies from the cache
@@ -202,7 +202,7 @@ def initialize_chain(test_dir, num_nodes):
     assert num_nodes <= MAX_NODES
     create_cache = False
     for i in range(MAX_NODES):
-        if not os.path.isdir(os.path.join('cache', 'node'+str(i))):
+        if not os.path.isdir(os.path.join(cachedir, 'node'+str(i))):
             create_cache = True
             break
 
@@ -210,12 +210,12 @@ def initialize_chain(test_dir, num_nodes):
 
         #find and delete old cache directories if any exist
         for i in range(MAX_NODES):
-            if os.path.isdir(os.path.join("cache","node"+str(i))):
-                shutil.rmtree(os.path.join("cache","node"+str(i)))
+            if os.path.isdir(os.path.join(cachedir,"node"+str(i))):
+                shutil.rmtree(os.path.join(cachedir,"node"+str(i)))
 
         # Create cache directories, run bitcoinds:
         for i in range(MAX_NODES):
-            datadir=initialize_datadir("cache", i)
+            datadir=initialize_datadir(cachedir, i)
             args = [ os.getenv("BITCOIND", "bitcoind"), "-server", "-keypool=1", "-datadir="+datadir, "-discover=0" ]
             if i > 0:
                 args.append("-connect=127.0.0.1:"+str(p2p_port(0)))
@@ -257,13 +257,13 @@ def initialize_chain(test_dir, num_nodes):
         wait_bitcoinds()
         disable_mocktime()
         for i in range(MAX_NODES):
-            os.remove(log_filename("cache", i, "debug.log"))
-            os.remove(log_filename("cache", i, "db.log"))
-            os.remove(log_filename("cache", i, "peers.dat"))
-            os.remove(log_filename("cache", i, "fee_estimates.dat"))
+            os.remove(log_filename(cachedir, i, "debug.log"))
+            os.remove(log_filename(cachedir, i, "db.log"))
+            os.remove(log_filename(cachedir, i, "peers.dat"))
+            os.remove(log_filename(cachedir, i, "fee_estimates.dat"))
 
     for i in range(num_nodes):
-        from_dir = os.path.join("cache", "node"+str(i))
+        from_dir = os.path.join(cachedir, "node"+str(i))
         to_dir = os.path.join(test_dir,  "node"+str(i))
         shutil.copytree(from_dir, to_dir)
         initialize_datadir(test_dir, i) # Overwrite port/rpcport in bitcoin.conf