diff --git a/.gitignore b/.gitignore
index fb1121f..37b0f7b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
+.idea/
 # ---> Rust
 # Generated by Cargo
 # will have compiled files and executables
diff --git a/Cargo.lock b/Cargo.lock
index bd9c93e..2a67268 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -48,7 +48,7 @@ dependencies = [
 
 [[package]]
 name = "digest-tool"
-version = "0.1.3"
+version = "0.1.4"
 dependencies = [
  "argparse",
  "hex",
diff --git a/Cargo.toml b/Cargo.toml
index 0f991ae..d402afe 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "digest-tool"
-version = "0.1.3"
+version = "0.1.4"
 authors = ["Hatter Jiang <jht5945@gmail.com>"]
 edition = "2018"
 description = "Digest cli tool"
diff --git a/src/main.rs b/src/main.rs
index 8f855f3..983e03a 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,31 +1,33 @@
 #[macro_use]
 extern crate rust_util;
 
-mod opt;
-
-use rust_util::{
-    XResult,
-    new_box_ioerror,
-};
 use std::{
     fs::File,
-    io::{ self, Read, ErrorKind },
+    io::{self, ErrorKind, Read},
 };
+
 use crypto::{
-    digest::Digest,
-    ripemd160::Ripemd160,
-    whirlpool::Whirlpool,
-    blake2s::Blake2s,
     blake2b::Blake2b,
+    blake2s::Blake2s,
+    digest::Digest,
     md5::Md5,
+    ripemd160::Ripemd160,
     sha1::Sha1,
-    sha2::{ Sha224, Sha256, Sha384, Sha512, Sha512Trunc224, Sha512Trunc256, },
+    sha2::{Sha224, Sha256, Sha384, Sha512, Sha512Trunc224, Sha512Trunc256},
     sha3::Sha3,
+    whirlpool::Whirlpool,
 };
-use indicatif::{ ProgressBar, ProgressStyle };
+use indicatif::{ProgressBar, ProgressStyle};
 use libsm::sm3::hash::Sm3Hash;
+use rust_util::{
+    new_box_ioerror,
+    XResult,
+};
+
 use opt::Options;
 
+mod opt;
+
 const FILE_SIZE_1GB: u64 = 1024 * 1024 * 1024;
 const BUFF_SIZE: usize = 512 * 1024;
 const PB_PROGRESS: &str = "#-";
@@ -64,16 +66,24 @@ fn main() -> XResult<()> {
         };
     } else {
         for file in &options.file_name_list {
-            match get_digest_by_algorithm(the_algo, &options) {
-                Some(mut digest) => println!("{}  - {} ({})", calc_file_digest(&mut *digest, file)?, file, the_algo),
-                None => match the_algo {
-                    "SM3" => println!("{}  - {} ({})", hex::encode(Sm3Hash::new(&read_file_full(file)?).get_hash()), file, the_algo),
-                    _ => {
-                        failure!("Unknown algorithm: {}", options.algorithm);
-                        return Ok(());
+            if options.verbose {
+                information!("Processing file: {}", file);
+            }
+            let r = || -> XResult<()> {
+                match get_digest_by_algorithm(the_algo, &options) {
+                    Some(mut digest) => println!("{}  - {} ({})", calc_file_digest(&mut *digest, file)?, file, the_algo),
+                    None => match the_algo {
+                        "SM3" => println!("{}  - {} ({})", hex::encode(Sm3Hash::new(&read_file_full(file)?).get_hash()), file, the_algo),
+                        _ => failure!("Unknown algorithm: {}", options.algorithm),
                     },
-                },
+                }
+                Ok(())
             };
+            if let Err(e) = r() {
+                if !options.ignore_errors || options.verbose {
+                    failure!("{} - {}", file, e);
+                }
+            }
         }
     }
 
@@ -91,7 +101,7 @@ Supported algorithms:
 MD5, SHA1, SHA224, SHA256, SHA512, SHA512-224, SHA512-256,
 SHA3-224, SHA3-256, SHA3-384, SHA3-512, SHAKE-128, SHAKE-256,
 KECCAK-224, KECCAK-256, KECCAK-384, KECCAK-512,
-SM3, RIPEMD160, WHIRLPOOL, BLAKE2S, BLAKE2B"#, VERSION, &GIT_HASH[0..7]);
+SM3, RIPEMD160, WHIRLPOOL, BLAKE2S, BLAKE2B"#, VERSION, iff!(GIT_HASH.is_empty(), "n/a", &GIT_HASH[0..7]));
     if options.verbose {
         debugging!("Full git hash: {}", &GIT_HASH);
     }
@@ -142,7 +152,10 @@ fn read_file_full(file_name: &str) -> XResult<Vec<u8>> {
     let mut read = 0_u64;
     loop {
         let len = match f.read(&mut buf) {
-            Ok(0) => { pb.finish_and_clear(); return Ok(ret); },
+            Ok(0) => {
+                pb.finish_and_clear();
+                return Ok(ret);
+            }
             Ok(len) => len,
             Err(ref e) if e.kind() == ErrorKind::Interrupted => continue,
             Err(e) => return Err(Box::new(e)),
@@ -161,13 +174,16 @@ fn calc_file_digest(digest: &mut dyn Digest, file_name: &str) -> XResult<String>
 
     let pb = ProgressBar::new(file_len);
     pb.set_style(ProgressStyle::default_bar().template(PB_TEMPLATE).progress_chars(PB_PROGRESS));
-    
+
     loop {
         let len = match f.read(&mut buf) {
-            Ok(0) => { pb.finish_and_clear(); return Ok(digest.result_str()); },
+            Ok(0) => {
+                pb.finish_and_clear();
+                return Ok(digest.result_str());
+            }
             Ok(len) => len,
             Err(ref e) if e.kind() == ErrorKind::Interrupted => continue,
-            Err(e) => return Ok(format!("ERROR: {}", e)),
+            Err(e) => return Err(Box::new(e)),
         };
         digest.input(&buf[..len]);
         processed += len as u64;
diff --git a/src/opt.rs b/src/opt.rs
index 6eca5bd..3b4985b 100644
--- a/src/opt.rs
+++ b/src/opt.rs
@@ -4,6 +4,7 @@ use argparse::{ArgumentParser, StoreTrue, Store, List};
 pub struct Options {
     pub version: bool,
     pub verbose: bool,
+    pub ignore_errors: bool,
     pub algorithm: String,
     pub file_name_list: Vec<String>,
     pub blake_len: usize,
@@ -14,6 +15,7 @@ impl Options {
         Options {
             version: false,
             verbose: false,
+            ignore_errors: false,
             algorithm: "SHA256".to_string(),
             file_name_list: Vec::new(),
             blake_len: 0_usize,
@@ -28,6 +30,7 @@ impl Options {
             ap.refer(&mut self.blake_len).add_option(&["-l", "--blake-len"], Store, "Blake2s/b length, 1~32/64");
             ap.refer(&mut self.version).add_option(&["-V", "--version"], StoreTrue, "Print version");
             ap.refer(&mut self.verbose).add_option(&["-v", "--verbose"], StoreTrue, "Verbose");
+            ap.refer(&mut self.ignore_errors).add_option(&["--ignore-errors"], StoreTrue, "Ignore errors");
             ap.refer(&mut self.file_name_list).add_argument("File names", List, "File names to be digested");
             ap.parse_args_or_exit();
         }