This series fixes some issues with parsing sparse-checkout patterns when core.sparseCheckoutCone is enabled but the sparse-checkout file itself contains patterns that don't match the cone mode format. The first patch fixes a segfault first reported in [1]. The other two patches are from an earlier submission [2] that never got picked up and I lost track of. There was another patch involving 'git sparse-checkout init --cone' that isn't necessary, especially with Elijah doing some work in that space right now. [1] https://github.com/git-for-windows/git/issues/3498 [2] https://lore.kernel.org/git/pull.1043.git.1632160658.gitgitgadget@xxxxxxxxx Thanks, -Stolee Updates in v2 and v3 ==================== * I intended to fix a typo in a patch, but accidentally sent the amend! commit in v2 * v3 has the typo fix properly squashed in. * Added Elijah's review. Derrick Stolee (3): sparse-checkout: fix segfault on malformed patterns sparse-checkout: fix OOM error with mixed patterns sparse-checkout: refuse to add to bad patterns builtin/sparse-checkout.c | 5 ++++- dir.c | 5 +---- t/t1091-sparse-checkout-builtin.sh | 31 +++++++++++++++++++++++++++++- 3 files changed, 35 insertions(+), 6 deletions(-) base-commit: abe6bb3905392d5eb6b01fa6e54d7e784e0522aa Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-1069%2Fderrickstolee%2Fsparse-checkout%2Finput-bug-v3 Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-1069/derrickstolee/sparse-checkout/input-bug-v3 Pull-Request: https://github.com/gitgitgadget/git/pull/1069 Range-diff vs v2: 1: a0e3dd335c9 ! 1: 1744a26845f sparse-checkout: fix segfault on malformed patterns @@ Commit message there is additional logic that attempts to remove the line from the hashset and free the data. This leads to a segfault in the 'git sparse-checkout list' command because it iterates over the contents of the hashset, which is - no invalid. + now invalid. The fix here is to stop trying to remove from the hashset. Better to leave bad data in the sparse-checkout matching logic (with a warning) than to 2: 86fbf130c03 = 2: a2fe867222e sparse-checkout: fix OOM error with mixed patterns 3: 5d096e380a4 = 3: a0e5a942ae0 sparse-checkout: refuse to add to bad patterns 4: 7bacb3760f3 < -: ----------- amend! sparse-checkout: fix segfault on malformed patterns -- gitgitgadget
