From 0f1289768732e993c4d67a431c7f3ce308d8d79b Mon Sep 17 00:00:00 2001
From: Thomas Andreas Jung <taj@posteo.net>
Date: Sun, 21 Feb 2021 05:59:07 +0100
Subject: [PATCH] Support the hash type parameter in the CLI (#267)

https://github.com/qarmin/czkawka/issues/266
---
 czkawka_cli/src/commands.rs | 14 +++++++++++++-
 czkawka_cli/src/main.rs     |  2 ++
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/czkawka_cli/src/commands.rs b/czkawka_cli/src/commands.rs
index 08de2af..abda895 100644
--- a/czkawka_cli/src/commands.rs
+++ b/czkawka_cli/src/commands.rs
@@ -1,4 +1,4 @@
-use czkawka_core::duplicate::{CheckingMethod, DeleteMethod};
+use czkawka_core::duplicate::{CheckingMethod, DeleteMethod, HashType};
 use czkawka_core::same_music::MusicSimilarity;
 use czkawka_core::similar_images::Similarity;
 use std::path::PathBuf;
@@ -23,6 +23,9 @@ pub enum Commands {
         search_method: CheckingMethod,
         #[structopt(short = "D", long, default_value = "NONE", parse(try_from_str = parse_delete_method), help = "Delete method (AEN, AEO, ON, OO, HARD)", long_help = "Methods to delete the files.\nAEN - All files except the newest,\nAEO - All files except the oldest,\nON - Only 1 file, the newest,\nOO - Only 1 file, the oldest\nHARD - create hard link\nNONE - not delete files")]
         delete_method: DeleteMethod,
+        #[structopt(short, long, default_value = "BLAKE3", parse(try_from_str = parse_hash_type),
+            help="Hash type (BLAKE3, CRC32, XXH3)")]
+        hash_type: HashType,
         #[structopt(flatten)]
         file_to_save: FileToSave,
         #[structopt(flatten)]
@@ -234,6 +237,15 @@ impl FileToSave {
     }
 }
 
+fn parse_hash_type(src: &str) -> Result<HashType, &'static str> {
+    match src.to_ascii_lowercase().as_str() {
+        "blake3" => Ok(HashType::Blake3),
+        "crc32" => Ok(HashType::CRC32),
+        "xxh3" => Ok(HashType::XXH3),
+        _ => Err("Couldn't parse the hash type (allowed: BLAKE3, CRC32, XXH3)"),
+    }
+}
+
 fn parse_checking_method(src: &str) -> Result<CheckingMethod, &'static str> {
     match src.to_ascii_lowercase().as_str() {
         "name" => Ok(CheckingMethod::Name),
diff --git a/czkawka_cli/src/main.rs b/czkawka_cli/src/main.rs
index fe9ef37..e599813 100644
--- a/czkawka_cli/src/main.rs
+++ b/czkawka_cli/src/main.rs
@@ -36,6 +36,7 @@ fn main() {
             allowed_extensions,
             search_method,
             delete_method,
+            hash_type,
             file_to_save,
             not_recursive,
         } => {
@@ -48,6 +49,7 @@ fn main() {
             df.set_allowed_extensions(allowed_extensions.allowed_extensions.join(","));
             df.set_check_method(search_method);
             df.set_delete_method(delete_method);
+            df.set_hash_type(hash_type);
             df.set_recursive_search(!not_recursive.not_recursive);
 
             df.find_duplicates(None, None);