Move commands to cmd/ and move internal dependencies to internal/

1 files changed, 37 insertions, 0 deletions

diff --git a/internal/config/read.go b/internal/config/read.go
new file mode 100644
index 0000000..a4e605b
--- /dev/null
+++ b/internal/config/read.go
@@ -0,0 +1,37 @@
+package config
+
+import (
+	"os"
+)
+
+// Read the DTail configuration.
+func Read(configFile string, sshPort int) {
+	initializer := configInitializer{
+		Common: newDefaultCommonConfig(),
+		Server: newDefaultServerConfig(),
+		Client: newDefaultClientConfig(),
+	}
+
+	if configFile == "" {
+		configFile = "./cfg/dtail.json"
+	}
+
+	if _, err := os.Stat(configFile); !os.IsNotExist(err) {
+		initializer.parseConfig(configFile)
+	}
+
+	// Assign pointers to global variables, so that we can access the
+	// configuration from any place of the program.
+	Common = initializer.Common
+	Server = initializer.Server
+	Client = initializer.Client
+
+	if Server.MapreduceLogFormat == "" {
+		Server.MapreduceLogFormat = "default"
+	}
+
+	// If non-standard port specified, overwrite config
+	if sshPort != 2222 {
+		Common.SSHPort = sshPort
+	}
+}