added json output for further processing using other tools

src/fileinfo.rs

@@ -3,13 +3,15 @@ use memmap2::Mmap;
 use std::fs;
 use std::hash::Hasher;
 use std::{fs::Metadata, path::PathBuf};
+use serde::Serialize;
 
-#[derive(Debug, Clone)]
+#[derive(Debug, Clone, Serialize)]
 pub struct FileInfo {
     pub path: PathBuf,
-    pub filemeta: Metadata,
     pub hash: Option<String>,
     pub size: u64,
+    #[serde(skip)]
+    pub filemeta: Metadata,
 }
 
 impl FileInfo {

src/formatter.rs

@@ -121,8 +121,14 @@ impl Formatter {
             return Ok(());
         }
 
-        let output_table = Self::generate_table(raw, app_args)?;
-        output_table.printstd();
+        if app_args.json {
+            let output_json = serde_json::to_string_pretty(&raw)?;
+            println!("{}", output_json);
+            return Ok(());
+        } else {
+            let output_table = Self::generate_table(raw, app_args)?;
+            output_table.printstd();
+        }
 
         Ok(())
     }

src/main.rs

@@ -19,8 +19,12 @@ fn main() -> Result<()> {
     let results = processor.sizewise()?.hashwise()?;
 
     match app_args.interactive {
-        false => { Formatter::print(results.files, &app_args)?; }
-        true => { interactive::init(results.files, &app_args)?; }
+        false => {
+            Formatter::print(results.files, &app_args)?;
+        }
+        true => {
+            interactive::init(results.files, &app_args)?;
+        }
     }
 
     Ok(())

src/params.rs

@@ -27,6 +27,9 @@ pub struct Params {
     /// Follow links while scanning directories
     #[arg(long, short)]
     pub follow_links: bool,
+    /// print json output
+    #[arg(long)]
+    pub json: bool,
 }
 
 impl Params {