[Bug]: .gitignore regression in 0.10.x #723

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1. vadimi

   added

   bugSomething isn't workingSomething isn't working

   on Jul 28, 2026
2. gustav-fff commented on Jul 29, 2026

   

   gustav-fff

   on Jul 29, 2026

   Collaborator

   More actions

   [triage-bot] REPRODUCED: origin/main, branch triage-bot/issue-723.

   Zlob walker (release/--features zlob, i.e. what users install) prunes subdirs when .gitignore uses * + !*.* + !/**/. Ripgrep walker (default --features ripgrep) handles it correctly, so this is a regression introduced by 1cd8d31 (#645) swapping the walker backend. Bug is upstream in zlob 1.6.1: the negation !/**/ fails to re-include directories that were pruned by *.

   Minimal repro (inline test in crates/fff-core/src/walk/mod.rs):

   #[test]
   fn negation_reincludes_nested_files_issue_723() {
       let dir = tempfile::tempdir().unwrap();
       let root = dir.path();
       fs::create_dir(root.join(".git")).unwrap();
       fs::write(
           root.join(".gitignore"),
           "*\n!*.*\n!/**/\n",
       ).unwrap();
       fs::create_dir_all(root.join("sub1/sub2")).unwrap();
       fs::write(root.join("top.rs"), "").unwrap();
       fs::write(root.join("sub1/mid.rs"), "").unwrap();
       fs::write(root.join("sub1/sub2/deep.rs"), "").unwrap();
   
       let counter = Arc::new(AtomicUsize::new(0));
       let out = walk_collect_files(root, true, false, 1, &counter).unwrap();
       let names: Vec<String> = out.pairs.into_iter().map(|(_, r)| r).collect();
       assert!(names.iter().any(|n| n.ends_with("mid.rs")), "got: {names:?}");
   }

   Ripgrep backend:

   $ cargo test --manifest-path crates/fff-core/Cargo.toml --no-default-features --features ripgrep --lib negation_reincludes_nested_files_issue_723
   test walk::tests::negation_reincludes_nested_files_issue_723 ... ok
   

   Zlob backend (this is what ships):

   $ cargo test --manifest-path crates/fff-core/Cargo.toml --no-default-features --features zlob --lib negation_reincludes_nested_files_issue_723
   test walk::tests::negation_reincludes_nested_files_issue_723 ... FAILED
   sub1/mid.rs missing: [".gitignore", "top.rs"]
   

   @dmtrKovalenko this is not fixable inside fff-core without either (a) patching zlob's ignore matcher (upstream in zlob 1.6.1, src/walk.rs), or (b) detecting negation patterns and falling back to the ripgrep walker for those repos. Option (b) undoes the perf win of #645 for anyone with a ! in their .gitignore — probably not what you want. Punting to you for scoping.

   Not opening a PR.

   Honk-Honk 🪿
3. gustav-fff

   added

   triaged

   on Jul 29, 2026
4. dmtrKovalenko

   added a commit that references this issue on Aug 5, 2026

   fix: Gitignore incompatbility

   ...

   8443c49
5. dmtrKovalenko

   closed this as completedin #744on Aug 5, 2026
6. dmtrKovalenko

   added 2 commits that reference this issue on Aug 5, 2026

   fix: Gitignore incompatbility (#744)

   ...

   086044f

   fix: Correctly handle empty directories during the scan (#735)

   ...

   3a0ce85