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Prevent duplicate nodes in repos

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This commit is contained in:
Audrius Butkevicius 2014-07-28 00:15:16 +01:00
parent 2546930a1a
commit 75388caeed
2 changed files with 33 additions and 0 deletions
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24
config/config.go
View File

@ -313,10 +313,12 @@ func Load(rd io.Reader, myID protocol.NodeID) (Configuration, error) {
// Ensure this node is present in all relevant places
// Ensure that any loose nodes are not present in the wrong places
// Ensure that there are no duplicate nodes
cfg.Nodes = ensureNodePresent(cfg.Nodes, myID)
for i := range cfg.Repositories {
cfg.Repositories[i].Nodes = ensureNodePresent(cfg.Repositories[i].Nodes, myID)
cfg.Repositories[i].Nodes = ensureExistingNodes(cfg.Repositories[i].Nodes, existingNodes)
cfg.Repositories[i].Nodes = ensureNoDuplicates(cfg.Repositories[i].Nodes)
}
// An empty address list is equivalent to a single "dynamic" entry
@ -420,3 +422,25 @@ loop:
return nodes
}
func ensureNoDuplicates(nodes []NodeConfiguration) []NodeConfiguration {
count := len(nodes)
i := 0
seenNodes := make(map[protocol.NodeID]bool)
loop:
for i < count {
id := nodes[i].NodeID
if _, ok := seenNodes[id]; ok {
nodes[i] = nodes[count-1]
count--
continue loop
}
seenNodes[id] = true
i++
}
nodes = nodes[0:count]
sort.Sort(NodeConfigurationList(nodes))
return nodes
}

9
config/config_test.go
View File

@ -59,6 +59,12 @@ func TestNodeConfig(t *testing.T) {
<node id="P56IOI7MZJNU2IQGDREYDM2MGTMGL3BXNPQ6W5BTBBZ4TJXZWICQ" name="node two">
<address>b</address>
</node>
<node id="AIR6LPZ7K4PTTUXQSMUUCPQ5YWOEDFIIQJUG7772YQXXR5YD6AWQ" name="node one">
<address>a</address>
</node>
<node id="P56IOI7MZJNU2IQGDREYDM2MGTMGL3BXNPQ6W5BTBBZ4TJXZWICQ" name="node two">
<address>b</address>
</node>
</repository>
<options>
<readOnly>true</readOnly>
@ -69,9 +75,12 @@ func TestNodeConfig(t *testing.T) {
v2data := []byte(`
<configuration version="2">
<repository id="test" directory="~/Sync" ro="true">
<node id="P56IOI7MZJNU2IQGDREYDM2MGTMGL3BXNPQ6W5BTBBZ4TJXZWICQ"/>
<node id="AIR6LPZ7K4PTTUXQSMUUCPQ5YWOEDFIIQJUG7772YQXXR5YD6AWQ"/>
<node id="C4YBIESWDUAIGU62GOSRXCRAAJDWVE3TKCPMURZE2LH5QHAF576A"/>
<node id="P56IOI7MZJNU2IQGDREYDM2MGTMGL3BXNPQ6W5BTBBZ4TJXZWICQ"/>
<node id="AIR6LPZ7K4PTTUXQSMUUCPQ5YWOEDFIIQJUG7772YQXXR5YD6AWQ"/>
<node id="C4YBIESWDUAIGU62GOSRXCRAAJDWVE3TKCPMURZE2LH5QHAF576A"/>
</repository>
<node id="AIR6LPZ7K4PTTUXQSMUUCPQ5YWOEDFIIQJUG7772YQXXR5YD6AWQ" name="node one">
<address>a</address>