Settings: Add bool get()

src/download-via-ssh/download-via-ssh.cc

@@ -108,7 +108,7 @@ int main(int argc, char * * argv)
 
         /* Pass on the location of the daemon client's SSH
            authentication socket. */
-        string sshAuthSock = settings.get("ssh-auth-sock", "");
+        string sshAuthSock = settings.get("ssh-auth-sock", string(""));
         if (sshAuthSock != "") setenv("SSH_AUTH_SOCK", sshAuthSock.c_str(), 1);
 
         string host = settings.sshSubstituterHosts.front();

src/libstore/build.cc

@@ -1792,8 +1792,8 @@ void DerivationGoal::startBuilder()
 
         /* Bind-mount a user-configurable set of directories from the
            host file system. */
-        PathSet dirs = tokenizeString<StringSet>(settings.get("build-chroot-dirs", DEFAULT_CHROOT_DIRS));
+        PathSet dirs = tokenizeString<StringSet>(settings.get("build-chroot-dirs", string(DEFAULT_CHROOT_DIRS)));
-        PathSet dirs2 = tokenizeString<StringSet>(settings.get("build-extra-chroot-dirs", ""));
+        PathSet dirs2 = tokenizeString<StringSet>(settings.get("build-extra-chroot-dirs", string("")));
         dirs.insert(dirs2.begin(), dirs2.end());
         for (auto & i : dirs) {
             size_t p = i.find('=');

src/libstore/globals.cc

@@ -136,6 +136,14 @@ Strings Settings::get(const string & name, const Strings & def)
 }
 
 
+bool Settings::get(const string & name, bool def)
+{
+    bool res = def;
+    _get(res, name);
+    return res;
+}
+
+
 void Settings::update()
 {
     _get(tryFallback, "build-fallback");

src/libstore/globals.hh

@@ -25,6 +25,8 @@ struct Settings {
 
     Strings get(const string & name, const Strings & def);
 
+    bool get(const string & name, bool def);
+
     void update();
 
     string pack();