Move ChainNameFromCommandLine into ArgsManager and rename to GetChainName

src/bitcoin-cli.cpp

@@ -114,7 +114,7 @@ static int AppInitRPC(int argc, char* argv[])
     }
     // Check for -testnet or -regtest parameter (BaseParams() calls are only valid after this clause)
     try {
-        SelectBaseParams(ChainNameFromCommandLine());
+        SelectBaseParams(gArgs.GetChainName());
     } catch (const std::exception& e) {
         fprintf(stderr, "Error: %s\n", e.what());
         return EXIT_FAILURE;

src/bitcoin-tx.cpp

@@ -44,7 +44,7 @@ static int AppInitRawTx(int argc, char* argv[])
 
     // Check for -testnet or -regtest parameter (Params() calls are only valid after this clause)
     try {
-        SelectParams(ChainNameFromCommandLine());
+        SelectParams(gArgs.GetChainName());
     } catch (const std::exception& e) {
         fprintf(stderr, "Error: %s\n", e.what());
         return EXIT_FAILURE;

src/bitcoind.cpp

@@ -111,7 +111,7 @@ bool AppInit(int argc, char* argv[])
         }
         // Check for -testnet or -regtest parameter (Params() calls are only valid after this clause)
         try {
-            SelectParams(ChainNameFromCommandLine());
+            SelectParams(gArgs.GetChainName());
         } catch (const std::exception& e) {
             fprintf(stderr, "Error: %s\n", e.what());
             return false;

src/chainparamsbase.cpp

@@ -49,17 +49,3 @@ void SelectBaseParams(const std::string& chain)
 {
     globalChainBaseParams = CreateBaseChainParams(chain);
 }
-
-std::string ChainNameFromCommandLine()
-{
-    bool fRegTest = gArgs.GetBoolArg("-regtest", false);
-    bool fTestNet = gArgs.GetBoolArg("-testnet", false);
-
-    if (fTestNet && fRegTest)
-        throw std::runtime_error("Invalid combination of -regtest and -testnet.");
-    if (fRegTest)
-        return CBaseChainParams::REGTEST;
-    if (fTestNet)
-        return CBaseChainParams::TESTNET;
-    return CBaseChainParams::MAIN;
-}

src/chainparamsbase.h

@@ -54,10 +54,4 @@ const CBaseChainParams& BaseParams();
 /** Sets the params returned by Params() to those for the given network. */
 void SelectBaseParams(const std::string& chain);
 
-/**
- * Looks for -regtest, -testnet and returns the appropriate BIP70 chain name.
- * @return CBaseChainParams::MAX_NETWORK_TYPES if an invalid combination is given. CBaseChainParams::MAIN by default.
- */
-std::string ChainNameFromCommandLine();
-
 #endif // BITCOIN_CHAINPARAMSBASE_H

src/qt/bitcoin.cpp

@@ -630,7 +630,7 @@ int main(int argc, char *argv[])
 
     // Check for -testnet or -regtest parameter (Params() calls are only valid after this clause)
     try {
-        node->selectParams(ChainNameFromCommandLine());
+        node->selectParams(gArgs.GetChainName());
     } catch(std::exception &e) {
         QMessageBox::critical(0, QObject::tr(PACKAGE_NAME), QObject::tr("Error: %1").arg(e.what()));
         return EXIT_FAILURE;

src/qt/guiutil.cpp

@@ -599,7 +599,7 @@ TableViewLastColumnResizingFixer::TableViewLastColumnResizingFixer(QTableView* t
 #ifdef WIN32
 fs::path static StartupShortcutPath()
 {
-    std::string chain = ChainNameFromCommandLine();
+    std::string chain = gArgs.GetChainName();
     if (chain == CBaseChainParams::MAIN)
         return GetSpecialFolderPath(CSIDL_STARTUP) / "Bitcoin.lnk";
     if (chain == CBaseChainParams::TESTNET) // Remove this special case when CBaseChainParams::TESTNET = "testnet4"
@@ -697,7 +697,7 @@ fs::path static GetAutostartDir()
 
 fs::path static GetAutostartFilePath()
 {
-    std::string chain = ChainNameFromCommandLine();
+    std::string chain = gArgs.GetChainName();
     if (chain == CBaseChainParams::MAIN)
         return GetAutostartDir() / "bitcoin.desktop";
     return GetAutostartDir() / strprintf("bitcoin-%s.lnk", chain);
@@ -739,7 +739,7 @@ bool SetStartOnSystemStartup(bool fAutoStart)
         fs::ofstream optionFile(GetAutostartFilePath(), std::ios_base::out|std::ios_base::trunc);
         if (!optionFile.good())
             return false;
-        std::string chain = ChainNameFromCommandLine();
+        std::string chain = gArgs.GetChainName();
         // Write a bitcoin.desktop file to the autostart directory:
         optionFile << "[Desktop Entry]\n";
         optionFile << "Type=Application\n";

src/util.cpp

@@ -764,6 +764,20 @@ void ArgsManager::ReadConfigFile(const std::string& confPath)
     }
 }
 
+std::string ArgsManager::GetChainName() const
+{
+    bool fRegTest = GetBoolArg("-regtest", false);
+    bool fTestNet = GetBoolArg("-testnet", false);
+
+    if (fTestNet && fRegTest)
+        throw std::runtime_error("Invalid combination of -regtest and -testnet.");
+    if (fRegTest)
+        return CBaseChainParams::REGTEST;
+    if (fTestNet)
+        return CBaseChainParams::TESTNET;
+    return CBaseChainParams::MAIN;
+}
+
 #ifndef WIN32
 fs::path GetPidFile()
 {

src/util.h

@@ -306,6 +306,12 @@ public:
     // been set. Also called directly in testing.
     void ForceSetArg(const std::string& strArg, const std::string& strValue);
 
+    /**
+     * Looks for -regtest, -testnet and returns the appropriate BIP70 chain name.
+     * @return CBaseChainParams::MAIN by default; raises runtime error if an invalid combination is given.
+     */
+    std::string GetChainName() const;
+
 private:
 
     // Munge -nofoo into -foo=0 and track the value as negated.