fix(cli): print paths relative to the target path.

When the target path passed to the CLI is a relative one, file paths printed by the CLI are relative to the target path.

Closes #212

cli/src/commands/scan.rs

@@ -243,6 +243,8 @@ pub fn exec_scan(args: &ArgMatches) -> anyhow::Result<()> {
         walk::ParWalker::path(target_path)
     };
 
+    let canonical_target_path = target_path.canonicalize()?;
+
     if let Some(num_threads) = num_threads {
         w.num_threads(*num_threads);
     }
@@ -305,11 +307,20 @@ pub fn exec_scan(args: &ArgMatches) -> anyhow::Result<()> {
 
             let now = Instant::now();
 
+            // When the target path passed in the command line is an absolute
+            // path, all file paths are printed as absolute paths, if not, they
+            // are printed as paths relative to the target path.
+            let printable_path = if target_path.is_absolute() {
+                file_path.as_path()
+            } else {
+                file_path.strip_prefix(&canonical_target_path)?
+            };
+
             state
                 .files_in_progress
                 .lock()
                 .unwrap()
-                .push((file_path.clone(), now));
+                .push((printable_path.to_path_buf(), now));
 
             let scan_options = all_metadata.iter().fold(
                 ScanOptions::new(),
@@ -326,11 +337,15 @@ pub fn exec_scan(args: &ArgMatches) -> anyhow::Result<()> {
                 .files_in_progress
                 .lock()
                 .unwrap()
-                .retain(|(p, _)| !file_path.eq(p));
+                .retain(|(p, _)| !printable_path.eq(p));
 
             let scan_results = scan_results?;
-            let matched_count =
-                process_scan_results(args, &file_path, &scan_results, output);
+            let matched_count = process_scan_results(
+                args,
+                printable_path,
+                &scan_results,
+                output,
+            );
 
             state.num_scanned_files.fetch_add(1, Ordering::Relaxed);
             if matched_count > 0 {