From: Johannes Schindelin <johannes.schindelin@xxxxxx> Thanks to alwyas running `diff-index` and `diff-files` with the `--numstat` option (the latter with `--ignore-submodules=dirty`) before even generating any real diff to parse, the Perl version of `git add -p` simply ignored dirty submodules and does not even offer them up for staging. However, the built-in variant did not use that flag because it tries to run only one `diff` command, skipping the unneeded `diff-index`/`diff-files` invocation of the Perl variant and therefore only faithfully recapitulates what the Perl code does once it _does_ generate and parse the real diff. This causes a problem when running the built-in `add -p` with `diff-so-fancy` because that diff colorizer always inserts an empty line before the diff header to ensure that it produces 4 lines as expected by `git add -p` (the equivalent of the non-colorized `diff`, `index`, `---` and `+++` lines). But `git diff-files` does not produce any `index` line for dirty submodules. The underlying problem is not even the discrepancy in lines, but that `git add -p` presents diffs for dirty submodules: there is nothing that _can_ be staged for those. Let's fix that bug, and teach the built-in `add -p` to ignore dirty submodules, too. This _incidentally_ also fixes the `diff-so-fancy` problem ;-) Signed-off-by: Johannes Schindelin <johannes.schindelin@xxxxxx> --- add-patch.c | 3 ++- t/t3701-add-interactive.sh | 12 ++++++++++++ 2 files changed, 14 insertions(+), 1 deletion(-) diff --git a/add-patch.c b/add-patch.c index a6bd150de51..a6596532867 100644 --- a/add-patch.c +++ b/add-patch.c @@ -419,7 +419,8 @@ static int parse_diff(struct add_p_state *s, const struct pathspec *ps) } color_arg_index = args.nr; /* Use `--no-color` explicitly, just in case `diff.color = always`. */ - strvec_pushl(&args, "--no-color", "-p", "--", NULL); + strvec_pushl(&args, "--no-color", "--ignore-submodules=dirty", "-p", + "--", NULL); for (i = 0; i < ps->nr; i++) strvec_push(&args, ps->items[i].original); diff --git a/t/t3701-add-interactive.sh b/t/t3701-add-interactive.sh index a94e7c53c8a..5a7a0ea7e83 100755 --- a/t/t3701-add-interactive.sh +++ b/t/t3701-add-interactive.sh @@ -955,6 +955,18 @@ test_expect_success 'status ignores dirty submodules (except HEAD)' ' ! grep dirty-otherwise output ' +test_expect_success 'handle submodules' ' + echo 123 >>for-submodules/dirty-otherwise/initial.t && + + force_color git -C for-submodules add -p dirty-otherwise >output 2>&1 && + grep "No changes" output && + + force_color git -C for-submodules add -p dirty-head >output 2>&1 <y && + git -C for-submodules ls-files --stage dirty-head >actual && + rev="$(git -C for-submodules/dirty-head rev-parse HEAD)" && + grep "$rev" actual +' + test_expect_success 'set up pathological context' ' git reset --hard && test_write_lines a a a a a a a a a a a >a && -- gitgitgadget
