Create an uufuzz crate for common functions and use it (uutils#7954)

* uufuzz: create a crate with the common functions

* uufuzz: move the fuzz-common functions

* uufuzz: polish the crate

* adjust the fuzzer to use uufuzz

Author: sylvestre

.vscode/cspell.dictionaries/workspace.wordlist.txt

@@ -331,6 +331,7 @@ utmpx
 uucore
 uucore_procs
 uudoc
+uufuzz
 uumain
 uutil
 uutests

fuzz/Cargo.lock

@@ -1,20 +1,22 @@
 [package]
 name = "uucore-fuzz"
 version = "0.0.0"
+description = "uutils ~ 'core' uutils fuzzers"
+repository = "https://github.com/uutils/coreutils/tree/main/fuzz/"
+edition.workspace = true
 publish = false
+
+[workspace.package]
 edition = "2024"
+license = "MIT"
 
 [package.metadata]
 cargo-fuzz = true
 
 [dependencies]
-console = "0.15.0"
 libfuzzer-sys = "0.4.7"
-libc = "0.2.153"
-tempfile = "3.15.0"
 rand = { version = "0.9.0", features = ["small_rng"] }
-similar = "2.5.0"
-
+uufuzz = { path = "uufuzz/" }
 uucore = { path = "../src/uucore/", features = ["parser"] }
 uu_date = { path = "../src/uu/date/" }
 uu_test = { path = "../src/uu/test/" }

fuzz/Cargo.toml

@@ -6,20 +6,19 @@
 
 #![no_main]
 use libfuzzer_sys::fuzz_target;
+use rand::Rng;
+use std::env::temp_dir;
 use std::ffi::OsString;
+use std::fs::{self, File};
+use std::io::Write;
+use std::process::Command;
 use uu_cksum::uumain;
-mod fuzz_common;
-use crate::fuzz_common::{
+use uufuzz::{
     CommandResult, compare_result, generate_and_run_uumain, generate_random_file,
     generate_random_string,
     pretty_print::{print_or_empty, print_test_begin},
     replace_fuzz_binary_name, run_gnu_cmd,
 };
-use rand::Rng;
-use std::env::temp_dir;
-use std::fs::{self, File};
-use std::io::Write;
-use std::process::Command;
 
 static CMD_PATH: &str = "cksum";
 

fuzz/fuzz_targets/fuzz_cksum.rs

@@ -11,8 +11,7 @@ use uu_cut::uumain;
 use rand::Rng;
 use std::ffi::OsString;
 
-mod fuzz_common;
-use crate::fuzz_common::{
+use uufuzz::{
     CommandResult, compare_result, generate_and_run_uumain, generate_random_string, run_gnu_cmd,
 };
 static CMD_PATH: &str = "cut";

fuzz/fuzz_targets/fuzz_cut.rs

@@ -6,11 +6,8 @@ use rand::Rng;
 use rand::prelude::IndexedRandom;
 use std::ffi::OsString;
 
-mod fuzz_common;
-use crate::fuzz_common::CommandResult;
-use crate::fuzz_common::{
-    compare_result, generate_and_run_uumain, generate_random_string, run_gnu_cmd,
-};
+use uufuzz::CommandResult;
+use uufuzz::{compare_result, generate_and_run_uumain, generate_random_string, run_gnu_cmd};
 
 static CMD_PATH: &str = "echo";
 

fuzz/fuzz_targets/fuzz_echo.rs

@@ -10,11 +10,10 @@ use uu_env::uumain;
 
 use std::ffi::OsString;
 
-mod fuzz_common;
-use crate::fuzz_common::{
+use rand::Rng;
+use uufuzz::{
     CommandResult, compare_result, generate_and_run_uumain, generate_random_string, run_gnu_cmd,
 };
-use rand::Rng;
 
 static CMD_PATH: &str = "env";
 

fuzz/fuzz_targets/fuzz_env.rs

@@ -12,11 +12,8 @@ use rand::Rng;
 use rand::prelude::IndexedRandom;
 use std::{env, ffi::OsString};
 
-mod fuzz_common;
-use crate::fuzz_common::CommandResult;
-use crate::fuzz_common::{
-    compare_result, generate_and_run_uumain, generate_random_string, run_gnu_cmd,
-};
+use uufuzz::CommandResult;
+use uufuzz::{compare_result, generate_and_run_uumain, generate_random_string, run_gnu_cmd};
 static CMD_PATH: &str = "expr";
 
 fn generate_expr(max_depth: u32) -> String {

fuzz/fuzz_targets/fuzz_expr.rs

@@ -13,11 +13,8 @@ use rand::seq::IndexedRandom;
 use std::env;
 use std::ffi::OsString;
 
-mod fuzz_common;
-use crate::fuzz_common::CommandResult;
-use crate::fuzz_common::{
-    compare_result, generate_and_run_uumain, generate_random_string, run_gnu_cmd,
-};
+use uufuzz::CommandResult;
+use uufuzz::{compare_result, generate_and_run_uumain, generate_random_string, run_gnu_cmd};
 
 static CMD_PATH: &str = "printf";
 

fuzz/fuzz_targets/fuzz_printf.rs

@@ -11,11 +11,8 @@ use uu_seq::uumain;
 use rand::Rng;
 use std::ffi::OsString;
 
-mod fuzz_common;
-use crate::fuzz_common::CommandResult;
-use crate::fuzz_common::{
-    compare_result, generate_and_run_uumain, generate_random_string, run_gnu_cmd,
-};
+use uufuzz::CommandResult;
+use uufuzz::{compare_result, generate_and_run_uumain, generate_random_string, run_gnu_cmd};
 static CMD_PATH: &str = "seq";
 
 fn generate_seq() -> String {