feat: add JSON printer in xlinectl

Signed-off-by: bsbds <[email protected]>

xlinectl/Cargo.toml

@@ -16,6 +16,8 @@ async-trait = "0.1.68"
 clap = { version = "4.3.2", features = ["derive", "string"] }
 itertools = "0.10.5"
 regex = "1.8.4"
+serde = { version = "1.0.137", features = ["derive"] }
+serde_json = "1.0.107"
 shlex = "1.1.0"
 thiserror = "1.0.37"
 tokio = { version = "1", features = ["rt"] }

xlinectl/src/main.rs

@@ -228,7 +228,7 @@ fn cli() -> Command {
         .arg(arg!(--printer_type <TYPE> "The format of the result that will be printed")
             .global(true)
             .help_heading(GLOBAL_HEADING)
-            .value_parser(["SIMPLE", "FIELD"])
+            .value_parser(["SIMPLE", "FIELD", "JSON"])
             .default_value("SIMPLE"))
 
         .subcommand(get::command())
@@ -267,6 +267,7 @@ async fn main() -> Result<()> {
     {
         "SIMPLE" => PrinterType::Simple,
         "FIELD" => PrinterType::Field,
+        "JSON" => PrinterType::Json,
         _ => unreachable!("already checked by clap"),
     };
     set_printer_type(printer_type);

xlinectl/src/utils/printer.rs

@@ -1,5 +1,6 @@
 use std::sync::OnceLock;
 
+use serde::Serialize;
 use xlineapi::{
     AuthDisableResponse, AuthEnableResponse, AuthRoleAddResponse, AuthRoleDeleteResponse,
     AuthRoleGetResponse, AuthRoleGrantPermissionResponse, AuthRoleListResponse,
@@ -21,6 +22,8 @@ pub(crate) enum PrinterType {
     Simple,
     /// Filed printer, which print every fields of the result
     Field,
+    /// JSON printer, which print in JSON format
+    Json,
 }
 
 /// Set the type of the printer
@@ -29,11 +32,18 @@ pub(crate) fn set_printer_type(printer_type: PrinterType) {
 }
 
 /// The printer implementation trait
-pub(crate) trait Printer {
+pub(crate) trait Printer: Serialize {
     /// Print the simplified result
     fn simple(&self);
     /// Print every fields of the result
     fn field(&self);
+    /// Print the result in JSON format
+    fn json(&self) {
+        println!(
+            "{}",
+            serde_json::to_string_pretty(self).expect("failed to serialize result")
+        );
+    }
     /// Print according to the config set
     fn print(&self) {
         match *PRINTER_TYPE
@@ -42,6 +52,7 @@ pub(crate) trait Printer {
         {
             PrinterType::Simple => self.simple(),
             PrinterType::Field => self.field(),
+            PrinterType::Json => self.json(),
         }
     }
 }