Move backend source to server/ subpackage

To clarify the organization.

server/src/infra/cli.rs

@@ -0,0 +1,50 @@
+use clap::Clap;
+
+/// lldap is a lightweight LDAP server
+#[derive(Debug, Clap, Clone)]
+#[clap(version = "0.1", author = "The LLDAP team")]
+pub struct CLIOpts {
+    /// Export
+    #[clap(subcommand)]
+    pub command: Command,
+}
+
+#[derive(Debug, Clap, Clone)]
+pub enum Command {
+    /// Export the GraphQL schema to *.graphql.
+    #[clap(name = "export_graphql_schema")]
+    ExportGraphQLSchema(ExportGraphQLSchemaOpts),
+    /// Run the LDAP and GraphQL server.
+    #[clap(name = "run")]
+    Run(RunOpts),
+}
+
+#[derive(Debug, Clap, Clone)]
+pub struct RunOpts {
+    /// Change config file name
+    #[clap(short, long, default_value = "lldap_config.toml")]
+    pub config_file: String,
+
+    /// Change ldap port. Default: 389
+    #[clap(long)]
+    pub ldap_port: Option<u16>,
+
+    /// Change ldap ssl port. Default: 636
+    #[clap(long)]
+    pub ldaps_port: Option<u16>,
+
+    /// Set verbose logging
+    #[clap(short, long)]
+    pub verbose: bool,
+}
+
+#[derive(Debug, Clap, Clone)]
+pub struct ExportGraphQLSchemaOpts {
+    /// Output to a file. If not specified, the config is printed to the standard output.
+    #[clap(short, long)]
+    pub output_file: Option<String>,
+}
+
+pub fn init() -> CLIOpts {
+    CLIOpts::parse()
+}