`.gitignore` not taken into account when multiple search paths are provided

[Erwyn]

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• I have a different issue.

What version of ripgrep are you using?

ripgrep 15.1.0

features:+pcre2
simd(compile):+SSE2,-SSSE3,-AVX2
simd(runtime):+SSE2,+SSSE3,+AVX2

PCRE2 10.45 is available (JIT is available)

How did you install ripgrep?

Nixpkgs stable 25.11

What operating system are you using ripgrep on?

NixOs 25.11

Describe your bug.

.gitignore seems to be not taken into account if mutiple search paths are provided

What are the steps to reproduce the behavior?

1. mkdir tests src
2. echo "this" > tests/valid && echo "this" > src/valid && echo "this" > src/invalid
3. git init . && echo "src/invalid" > .gitignore
4. rg "this" => no src/invalid
5. rg "this" src/ => no src/invalid
6. rg "this" src/ tests/ => src/invalid is found
7. rg "this" tests/ src/ => funnily, src/invalid is not found

What is the actual behavior?

❯ rg --debug "this" src tests
rg: DEBUG|rg::flags::parse|crates/core/flags/parse.rs:97: no extra arguments found from configuration file
rg: DEBUG|rg::flags::hiargs|crates/core/flags/hiargs.rs:954: read CWD from environment: /tmp/reproduce
rg: DEBUG|rg::flags::hiargs|crates/core/flags/hiargs.rs:1092: number of paths given to search: 2
rg: DEBUG|rg::flags::hiargs|crates/core/flags/hiargs.rs:1103: is_one_file? false
rg: DEBUG|rg::flags::hiargs|crates/core/flags/hiargs.rs:1278: found hostname for hyperlink configuration: sunbase
rg: DEBUG|rg::flags::hiargs|crates/core/flags/hiargs.rs:1288: hyperlink format: ""
rg: DEBUG|rg::flags::hiargs|crates/core/flags/hiargs.rs:175: using 12 thread(s)
rg: DEBUG|grep_regex::config|/build/source/crates/regex/src/config.rs:175: assembling HIR from 1 fixed string literals
rg: DEBUG|ignore::gitignore|crates/ignore/src/gitignore.rs:398: opened gitignore file: /tmp/reproduce/.gitignore
rg: DEBUG|globset|crates/globset/src/lib.rs:515: built glob set; 1 literals, 0 basenames, 0 extensions, 0 prefixes, 0 suffixes, 0 required extensions, 0 regexes
rg: DEBUG|ignore::gitignore|crates/ignore/src/gitignore.rs:398: opened gitignore file: /tmp/reproduce/.git/info/exclude
src/valid
1:this

src/invalid
1:this

tests/valid
1:this

What is the expected behavior?

In step 6. of reproduction I feel that I should not find src/invalid

[Jah-yee]

Update: Fix identified and PR submitted

I've identified the root cause and submitted PR #3380 that fixes this issue.

Root Cause

In crates/ignore/src/dir.rs, the add_parents() function's compiled cache was keyed only by parent directory path. When multiple search paths are provided, the cache entry from the first path (e.g., src/) was incorrectly reused for the second path (e.g., tests/), but with the wrong absolute_base value — pointing to src/ instead of tests/. This caused .gitignore rules to be applied with incorrect path prefixes.

Fix

The cache key is now (parent_path, absolute_base_path) instead of just parent_path. This ensures different root search paths get distinct cache entries.

Test Results

• rg this src/ tests/: Before fix = src/invalid found (buggy); After fix = src/invalid correctly excluded ✅
• rg this tests/ src/: Always correct ✅

All 329 tests pass.