Jerry Zhang <jerry@xxxxxxxxxx> writes:
> Documentation/git-apply.txt | 6 +++--
> apply.c | 9 ++++---
> t/t4108-apply-threeway.sh | 50 +++++++++++++++++++++++++++++++++++++
> 3 files changed, 59 insertions(+), 6 deletions(-)
Nicely done. Will queue.
Elijah, how does this round look to you?
> diff --git a/Documentation/git-apply.txt b/Documentation/git-apply.txt
> index 9144575299c264dd299b542b7b5948eef35f211c..aa1ae56a25e0428cabcfa2539900ef2a09abcb7c 100644
> --- a/Documentation/git-apply.txt
> +++ b/Documentation/git-apply.txt
> @@ -87,8 +87,10 @@ OPTIONS
> Attempt 3-way merge if the patch records the identity of blobs it is supposed
> to apply to and we have those blobs available locally, possibly leaving the
> conflict markers in the files in the working tree for the user to
> - resolve. This option implies the `--index` option, and is incompatible
> - with the `--reject` and the `--cached` options.
> + resolve. This option implies the `--index` option unless the
> + `--cached` option is used, and is incompatible with the `--reject` option.
> + When used with the `--cached` option, any conflicts are left at higher stages
> + in the cache.
>
> --build-fake-ancestor=<file>::
> Newer 'git diff' output has embedded 'index information'
> diff --git a/apply.c b/apply.c
> index 9bd4efcbced842d2c5c030a0f2178ddb36114600..dadab80ec967357b031657d4e3d0ae52fac11411 100644
> --- a/apply.c
> +++ b/apply.c
> @@ -133,8 +133,6 @@ int check_apply_state(struct apply_state *state, int force_apply)
>
> if (state->apply_with_reject && state->threeway)
> return error(_("--reject and --3way cannot be used together."));
> - if (state->cached && state->threeway)
> - return error(_("--cached and --3way cannot be used together."));
> if (state->threeway) {
> if (is_not_gitdir)
> return error(_("--3way outside a repository"));
> @@ -4644,8 +4642,11 @@ static int write_out_results(struct apply_state *state, struct patch *list)
> fprintf(stderr, "U %s\n", item->string);
> }
> string_list_clear(&cpath, 0);
> -
> - repo_rerere(state->repo, 0);
> + /* Rerere relies on the partially merged result being in the working tree
> + * with conflict markers, but that isn't written with --cached.
> + */
> + if (!state->cached)
> + repo_rerere(state->repo, 0);
> }
>
> return errs;
> diff --git a/t/t4108-apply-threeway.sh b/t/t4108-apply-threeway.sh
> index 9ff313f976422f9c12dc8032d14567b54cfe3765..65147efdea9a00e30d156e6f4d5d72a3987f230d 100755
> --- a/t/t4108-apply-threeway.sh
> +++ b/t/t4108-apply-threeway.sh
> @@ -180,4 +180,54 @@ test_expect_success 'apply -3 with ambiguous repeating file' '
> test_cmp expect one_two_repeat
> '
>
> +test_expect_success 'apply with --3way --cached clean apply' '
> + # Merging side should be similar to applying this patch
> + git diff ...side >P.diff &&
> +
> + # The corresponding cleanly applied merge
> + git reset --hard &&
> + git checkout main~ &&
> + git merge --no-commit side &&
> + git ls-files -s >expect.ls &&
> +
> + # should succeed
> + git reset --hard &&
> + git checkout main~ &&
> + git apply --cached --3way P.diff &&
> + git ls-files -s >actual.ls &&
> + print_sanitized_conflicted_diff >actual.diff &&
> +
> + # The cache should resemble the corresponding merge
> + # (both files at stage #0)
> + test_cmp expect.ls actual.ls &&
> + # However the working directory should not change
> + >expect.diff &&
> + test_cmp expect.diff actual.diff
> +'
> +
> +test_expect_success 'apply with --3way --cached and conflicts' '
> + # Merging side should be similar to applying this patch
> + git diff ...side >P.diff &&
> +
> + # The corresponding conflicted merge
> + git reset --hard &&
> + git checkout main^0 &&
> + test_must_fail git merge --no-commit side &&
> + git ls-files -s >expect.ls &&
> +
> + # should fail to apply
> + git reset --hard &&
> + git checkout main^0 &&
> + test_must_fail git apply --cached --3way P.diff &&
> + git ls-files -s >actual.ls &&
> + print_sanitized_conflicted_diff >actual.diff &&
> +
> + # The cache should resemble the corresponding merge
> + # (one file at stage #0, one file at stages #1 #2 #3)
> + test_cmp expect.ls actual.ls &&
> + # However the working directory should not change
> + >expect.diff &&
> + test_cmp expect.diff actual.diff
> +'
> +
> test_done
