return "gpg.exe";
        } else {
            return "gpg";
        }
    }

    public void setUseLegacyGpg(boolean useLegacyGpg) {
        this.useLegacyGpg = useLegacyGpg;
    }

    public boolean getUseLegacyGpg() {
        return useLegacyGpg;
    }

    public void setHomeDir(File homeDir) {
        this.homeDir = homeDir;
    }

    public File getHomeDir() {

        }
        if (passphrase != null) {
            if (useLegacyGpg) {
                args.add("--no-use-agent");
            } else {
                args.add("--pinentry-mode=loopback");
            }
            args.add("--passphrase-fd");
            args.add("0");
        } else {
            if (useLegacyGpg) {
                args.add("--use-agent");
            }
        }

        Object executable = project.findProperty(buildQualifiedProperty(propertyPrefix, "executable"));
        Object useLegacyGpg = project.findProperty(buildQualifiedProperty(propertyPrefix, "useLegacyGpg"));
        Object homeDir = project.findProperty(buildQualifiedProperty(propertyPrefix, "homeDir"));

// tag::user-properties[]
signing.gnupg.executable=gpg
signing.gnupg.useLegacyGpg=true
signing.gnupg.homeDir=gnupg-home
signing.gnupg.optionsFile=gnupg-home/gpg.conf
signing.gnupg.keyName=24875D73
signing.gnupg.passphrase=gradle

// tag::user-properties[]
signing.gnupg.executable=gpg
signing.gnupg.useLegacyGpg=true
signing.gnupg.homeDir=gnupg-home
signing.gnupg.optionsFile=gnupg-home/gpg.conf
signing.gnupg.keyName=24875D73
signing.gnupg.passphrase=gradle

        GpgCmdAndVersion client = getAvailableGpg()
        assert client
        properties.put('signing.gnupg.executable', client.executable)
        properties.put('signing.gnupg.useLegacyGpg', (client.version == 1).toString())
        properties.put('signing.gnupg.homeDir', gpgHomeSymlink.toAbsolutePath().toString())
        properties.remove('signing.gnupg.optionsFile')

----

`signing.gnupg.executable`::
The gpg executable that is invoked for signing. The default value of this property depends on `useLegacyGpg`. If that is `true` then the default value of executable is "gpg" otherwise it is "gpg2".
`signing.gnupg.useLegacyGpg`::
Must be `true` if GnuPG version 1 is used and `false` otherwise. The default value of the property is `false`.
`signing.gnupg.homeDir`::