hashsum: Implement the quiet mode

src/uu/cksum/src/cksum.rs

@@ -182,6 +182,7 @@ mod options {
     pub const STATUS: &str = "status";
     pub const WARN: &str = "warn";
     pub const IGNORE_MISSING: &str = "ignore-missing";
+    pub const QUIET: &str = "quiet";
 }
 
 /// Determines whether to prompt an asterisk (*) in the output.
@@ -282,7 +283,8 @@ pub fn uumain(args: impl uucore::Args) -> UResult<()> {
         let strict = matches.get_flag(options::STRICT);
         let status = matches.get_flag(options::STATUS);
         let warn = matches.get_flag(options::WARN);
-        let ignore_missing = matches.get_flag(options::IGNORE_MISSING);
+        let ignore_missing: bool = matches.get_flag(options::IGNORE_MISSING);
+        let quiet: bool = matches.get_flag(options::QUIET);
 
         if (binary_flag || text_flag) && check {
             return Err(ChecksumError::BinaryTextConflict.into());
@@ -307,6 +309,7 @@ pub fn uumain(args: impl uucore::Args) -> UResult<()> {
             warn,
             binary_flag,
             ignore_missing,
+            quiet,
             algo_option,
             length,
         );
@@ -447,6 +450,13 @@ pub fn uu_app() -> Command {
                 .help("don't output anything, status code shows success")
                 .action(ArgAction::SetTrue),
         )
+        .arg(
+            Arg::new(options::QUIET)
+                .short('q')
+                .long(options::QUIET)
+                .help("don't print OK for each successfully verified file")
+                .action(ArgAction::SetTrue),
+        )
         .arg(
             Arg::new(options::IGNORE_MISSING)
                 .long(options::IGNORE_MISSING)

src/uu/hashsum/src/hashsum.rs

@@ -220,7 +220,7 @@ pub fn uumain(mut args: impl uucore::Args) -> UResult<()> {
         .unwrap_or(None)
         .unwrap_or(&false);
     let status = matches.get_flag("status");
-    //let quiet = matches.get_flag("quiet") || status;
+    let quiet = matches.get_flag("quiet") || status;
     //let strict = matches.get_flag("strict");
     let warn = matches.get_flag("warn") && !status;
     let zero: bool = matches.get_flag("zero");
@@ -277,6 +277,7 @@ pub fn uumain(mut args: impl uucore::Args) -> UResult<()> {
             warn,
             binary_flag,
             ignore_missing,
+            quiet,
             algo_option,
             Some(algo.bits),
         );
@@ -303,6 +304,7 @@ mod options {
     pub const BINARY: &str = "binary";
     pub const STATUS: &str = "status";
     pub const WARN: &str = "warn";
+    pub const QUIET: &str = "quiet";
 }
 
 pub fn uu_app_common() -> Command {
@@ -351,9 +353,9 @@ pub fn uu_app_common() -> Command {
                 .action(ArgAction::SetTrue),
         )
         .arg(
-            Arg::new("quiet")
+            Arg::new(options::QUIET)
                 .short('q')
-                .long("quiet")
+                .long(options::QUIET)
                 .help("don't print OK for each successfully verified file")
                 .action(ArgAction::SetTrue),
         )

src/uucore/src/lib/features/checksum.rs

@@ -310,6 +310,7 @@ pub fn perform_checksum_validation<'a, I>(
     warn: bool,
     binary: bool,
     ignore_missing: bool,
+    quiet: bool,
     algo_name_input: Option<&str>,
     length_input: Option<usize>,
 ) -> UResult<()>
@@ -471,7 +472,9 @@ where
 
                 // Do the checksum validation
                 if expected_checksum == calculated_checksum {
+                    if !quiet {
                         println!("{prefix}{filename_to_check}: OK");
+                    }
                     correct_format += 1;
                 } else {
                     if !status {

tests/by-util/test_hashsum.rs

@@ -729,3 +729,31 @@ fn test_check_directory_error() {
         .fails()
         .stderr_contains("md5sum: d: Is a directory\n");
 }
+
+#[test]
+fn test_check_quiet() {
+    let scene = TestScenario::new(util_name!());
+    let at = &scene.fixtures;
+
+    at.touch("f");
+    at.write("in.md5", "d41d8cd98f00b204e9800998ecf8427e  f\n");
+    scene
+        .ccmd("md5sum")
+        .arg("--quiet")
+        .arg("--check")
+        .arg(at.subdir.join("in.md5"))
+        .succeeds()
+        .stderr_is("")
+        .stdout_is("");
+
+    // incorrect md5
+    at.write("in.md5", "d41d8cd98f00b204e9800998ecf8427f  f\n");
+    scene
+        .ccmd("md5sum")
+        .arg("--quiet")
+        .arg("--check")
+        .arg(at.subdir.join("in.md5"))
+        .fails()
+        .stdout_contains("f: FAILED")
+        .stderr_contains("WARNING: 1 computed checksum did NOT match");
+}